ร่วมงานกับเราดีอย่างไร?

เราคือผู้ให้บริการเครือข่ายโทรคมนาคมในประเทศไทย ภายใต้แบรนด์ “ซิมโฟนี่” โดยเรามุ่งมั่นที่จะปรับปรุงประสิทธิภาพเครือข่ายอย่างต่อเนื่อง ขยายความครอบคลุมเชิงกลยุทธ์เพื่อเพิ่มฐานลูกค้า รองรับการเติบโตในอนาคต และส่งมอบบริการที่ดีที่สุดแก่ลูกค้าเพื่อให้มั่นใจได้ว่าลูกค้าจะได้รับ “ประสบการณ์ที่เป็นเลิศ”

เราเป็นผู้ให้บริการด้านการสื่อสารที่ได้รับการยอมรับในตลาด ด้วยแนวคิดที่เรามุ่งมั่นที่จะให้บริการลูกค้าอย่างเต็มที่ ผ่านคำมั่นที่เราให้ไว้ว่า Excellent Experience นอกจากนี้เรายังมองหาโอกาสเติบโตทางธุรกิจใหม่ๆ เพื่อตอบสนองความต้องการของลูกค้าท่ามกลางการเปลี่ยนแปลงทางเทคโนโลยีที่เปลี่ยนไปอย่างรวดเร็ว

เราจึงต้องการทีมงาน และบุคคลากรที่มีความสามารถ ที่มีความมุ่งมั่นเดียวกับเราในการให้บริการลูกค้าอย่างดีที่สุด ร่วมเป็นส่วนหนึ่งของทีมของเราและช่วยกันสร้างประสบการณ์การให้บริการที่ดีที่สุดให้กับลูกค้าของเรา

ตำแหน่งที่เปิดรับสมัคร

Key Responsibilities:

  • Provide guidance and support for application users
  • Be able to investigate and identify issues, bugs, or errors and act as a bridge to the development team
  • Understand business situations and application functionality to better analyze problems and make recommendations
  • Provide services, support, and suggestions to end users regarding the Data Warehouse
  • Provide data or information support for ad-hoc requests from end users
  • Create new reports or modify existing reports for Business Units
  • Work closely with application development teams and vendors to investigate, fix, and test applications, including understanding new features, configurations, and elements to be deployed in each release
  • Administer the company's application system in terms of application configuration, master data setup, and application user ID and permission management
  • Configure and support all applications in production
  • Conduct knowledge-sharing sessions with team members to improve technical knowledge and skills

Qualifications:

  • Bachelor's degree in Computer Science, Information Technology, or any related fields
  • At least 5 years of experience in Application Support/Help Desk
  • Experience with Oracle Database, SQL, PL/SQL, SQL Developer, and Workflows
  • Experience with MS SQL Database, Crystal Reports, MS .NET, ASP.NET
  • Experience in connecting front-end, API, and back-end
  • Experience with incident management tools and ticketing systems
  • Strong technical knowledge of software applications and systems
  • Strong skills in database and programming
  • Good understanding of business and operations process flow
  • Good analytical, problem-solving, communication, presentation, and interpersonal skills

Key Responsibilities:

  • Work with our Cloud Specialist to deploy cloud environments in public cloud & local cloud.
  • Deploy and manage enterprise-class security, network, and systems management applications within a public cloud & local cloud environment.
  • Implement highly available, fault-tolerant, and scalable enterprise deployments following designs from Cloud Specialist.
  • Perform data and IaaS migrations from on-premises environments into public cloud & local cloud.
  • Perform support after sales and manage services as per customer requirements.
  • Standby call from Tier1 (Helpdesk) to support incidents or manage services.
  • Perform delivery documentation after customer onboarding.
  • Provide best-effort troubleshooting to customers.
  • Drive architectural and planning discussions with senior leadership concerning strategy, trade-offs, risks, and resource needs.
  • Demonstrate the ability to address product and technical challenges.

Qualifications:

  • Educations Background (bachelor’s degree in computer science, Computer/Telecommunication/Electrical Engineer,)
  • Professional Experiences (5+ Years’ Engineer Experience in IT/System/Network/Security)
  • Strong practical Linux and Windows-based systems administration skills in a Cloud or Virtualized environment
  • Hands on experience building solutions with public cloud & Local cloud Services (AWS/Azure/Huawei/VMware)
  • Cloud certified is an added advantage (Azure, AWS, Huawei, VMware etc.)

Key Responsibilities:

  • Collaborate with the sales team to identify customer needs and propose security solutions that align with business goals.
  • Provide technical support and expertise during the pre-sales process, including product demonstrations, presentations, and proof-of-concept (PoC) activities.
  • Conduct detailed security assessments and audits to identify risks and recommend solutions.
  • Design customized security architectures based on client requirements, focusing on areas such as network security, endpoint security, cloud security, and data protection.
  • Prepare technical proposals, solution documentation, and responses to RFPs (Requests for Proposals) and RFIs (Requests for Information).
  • Engage in client meetings to discuss technical aspects of security solutions, answer questions, and address concerns.
  • Stay up to date with the latest security products, technologies, and industry trends to advise customers on the best practices and solutions.
  • Support post-sales and project management teams during the implementation of security solutions to ensure the successful deployment and integration of products.
  • Conduct training and knowledge-sharing sessions for both internal teams and clients on security products and solutions.
  • Build and maintain strong relationships with key vendors and partners to leverage the latest security technologies.

Qualifications:

  • Bachelor’s degree in computer science, Information Technology, Cybersecurity, or a related field.
  • Minimum 5 years’ experience in network security, IT security and cyber security.
  • Experience in a presales or technical consulting role within the cybersecurity domain.
  • Experience in vulnerability assessment, penetration test.
  • Strong understanding of security and cybersecurity solutions, including firewalls, web application firewall, Data loss prevention, end point detection and response and cloud security.
  • Excellent communication and presentation skills, with the ability to explain complex technical concepts to non-technical stakeholders.
  • Strong problem-solving and analytical skills.
  • Ability to work independently and collaboratively in a fast-paced environment.
  • Has a certificate in IT security or cyber security (e.g., CISSP, Security+, Pentest+,CISA, CEH)

Key Responsibilities:

  • Recognize, identify and prioritize incidents in accordance with customer business requirements, organizational policies, and operational impact
  • Perform network monitoring
  • Inform Service Desk to log ticket, perform ticket status tracking, and escalation for incident management process
  • Perform troubleshooting and resolve network first-level incidents within SLA

Qualifications:

  • Bachelor's Degree or higher in Computer, Telecom Engineering, or related fields
  • Good command of English
  • 2-3 years of experience in computer network/IT Helpdesk/Internet Broadband
  • Solid knowledge of IT Infrastructure, LAN & WAN, Ethernet, MPLS, FTTx
  • Experience with supporting IP services (TCP/IP, IPv4, IPv6, VPN, QOS, SDN, SNMP, VOIP)
  • Experience with CISCO and Juniper switches, routers
  • Certification in CCNA/CCNP is preferred
  • Can work in shifts
  • Enthusiastic, can-do attitude, service-minded

Key Responsibilities:

  • Designing, implementing, and troubleshooting Enterprise network ecosystem
  • Installing and configuring network equipment such as routers, switches, wireless, firewalls, encoder/decoder (DVB)
  • Monitoring network performance and making recommendations based on performance analysis
  • Troubleshooting, resolving, and communicating networking issues
  • Reporting network status to key stakeholders
  • Writing and maintaining network documentation
  • On-call support and handling change requests outside of normal business hours

Qualifications:

  • Bachelor’s degree in Computer Engineering, Computer Science, Modern Technology, or higher
  • At least 5 - 7 years of experience in the IP Network field
  • Strong knowledge of network technology TCP/IP, routing techniques (Static, BGP, OSPF, ISIS) and other related connectivity, including but not limited to security and Cloud
  • Ability to implement and troubleshoot network infrastructure devices, including wireless access points, firewalls, routers, switches, and controllers
  • Strong understanding of Enterprise System & Network Architecture and ecosystems
  • Must be a self-starter able to work diligently with minimal supervision
  • Ability to communicate and work across different cultures and social groups
  • Ability to plan activities and projects well in advance, taking into account possible changing circumstances
  • Ability to work hard and put in longer hours when necessary
  • Hands-on experience with monitoring, network diagnostics, and network analytics tools
  • Completion of CCNA, HCIA, NSE4 certificates or higher

Key Responsibilities:

  • Product category: Cloud Solution service.
  • Carry out prospective activities within an assigned territory to develop a solid pipeline of sales opportunities.
  • Manage key aspects of the sales cycle including gathering requirements, demos, proof of concept, and product specification.
  • Present product and all features to customers at meetings and events
  • Troubleshooting client problems, answering questions from customers relating to solutions, and delivering technical enable men.
  • Build strong consultative relationships with individuals in customer and partner organizations to ensure customer and partner satisfaction.
  • Maintain up-to-date knowledge of industry, technical and competitive landscape to ensure the presentation and sale of the best client solutions.

Qualifications:

  • Bachelor’s/University degree, master’s degree in computer science, Information Technology, Engineering or equivalent
  • Experienced in Cloud Solution 3-5 years extensive in Telecommunication Business.
  • Experience working in a team collaboratively.
  • Self-Management to prioritize work and self-learning.
  • Well-developed teamwork habits and communication skills
  • Maintain an acceptable attendance record, be punctual, and meet deadlines.
  • Possess strong analytical and problem-solving skills.

Key Responsibilities:

  • Develop and maintain good relations with both new and existing customers.
  • Provide full information on products and services and arrange appointments with customers.
  • Handle full selling process from finding prospects, verifying opportunities until closing deals.
  • Communicate with Sales & Marketing team to gather required information for updating database and keep close relationship with customers.
  • Prepare sales forecasts, budgets, sales program and update the report as monthly basis.

Qualifications:

  • Work experience in Channel Sales, Project Sales or Corporate Sales and at least 2- 3 years extensive in Telecommunication Business.
  • Proficient in computer skills, especially MS Office.
  • Proficient in Presentation Skill, Negotiation Skill, and Sales Planning.
  • Good interpersonal relations.
  • Ability to work under pressure.
  • Having own car and driving license also knows direction in Bangkok and realm.

Key Responsibilities:

  • Manage key existing and create new business partners in the assigned markets targeting Telecommunication Service Provider in Asia Pacific
  • Understand and able to provide company’s products and services, including Telecommunication both Domestic, Cross Border System, Submarine Network, IP Transit/Peering, to prospects and business partners
  • Understand market situation and able to identify both opportunities and risks and present in quarterly report
  • Present business proposal both technical and commercial to executive audience
  • Complete all sales process starting with identifying customer requirements, prepare costing and solution, submit proposal, negotiation till close project
  • Good teamwork and well communication with related departments including Marketing, Product, Network, Procurement and Commercial to ensure end to end work process will deliver as company’s strategy

Qualifications:

  • Bachelor's Degree or master’s degree in IT, Telecommunications or any related fields
  • 3-5 years of experience in sales management or related fields i.e. International Sales, Import/Export, Overseas Sales etc.
  • Experience in Telecommunication, IP Transit/Peering, Dark fiber, and Colocation as a plus
  • Experience in network interconnection in Asia Pacific and understanding of internet infrastructure as a plus
  • Ability to travel abroad.
  • Good command in English and Thai (3rd language is a plus)
  • Proficient in communication, presentation, negotiation and sales planning skills
  • Proficient in computer skills, especially MS Office

Key Responsibilities:

  • Implement, configure, and activate new IPLC services over the DWDM/ IP/MPLS network.
  • Perform service provisioning, circuit turn-up, testing, and end-to-end service validation.
  • Resolve all technical issues in solutions/projects and delivery process.
  • Working closely with pre-sale team to validate and correct solutions ensuring seamless service activation.
  • Participated in customer meetings to kick-off projects and provide consult.
  • Coordinate with internal teams and external carriers/vendors to deliver customer services within agreed timelines.
  • Support service migrations, capacity upgrades, maintenance activities, and network optimization.
  • Follow change management processes and ensure all implementation activities are properly documented.
  • Maintain accurate documentation, including circuit records, configuration data, network diagrams, and implementation reports to deliver to after-sale support.
  • Cross-functional and collaborate with other departments to improve service quality.

Qualifications:

  • Bachelor's degree in Telecommunications Engineering, Electrical Engineering, Computer Engineering, Information Technology, or a related field.
  • 0–2 years of experience in telecommunications, ISP operations, or optical transmission networks (fresh graduates with relevant internships are accepted).
  • Excellent client-facing, managing customer and communication skills
  • Enthusiasms, Continuous learning, positive thinking.
  • Proficient in English communication skills.
  • Flexibility and ability to work under tight deadlines and handle pressure
  • Basic understanding of DWDM, SDH/SONET, Ethernet, MPLS, and IP networking concepts.
  • Basic knowledge of fiber optic technologies, optical power measurements, and link testing.
  • Familiarity with optical transmission vendors such as Huawei, Nokia or equivalent is an advantage.
  • Experience in Automation, Network Programmability e.g. Python, Ansible is a plus.

Key Responsibilities:

  • Respond to requests for technical assistance in person, via phone, chat or email
  • Diagnoses and resolve technical hardware and software issues
  • Research questions using available information resources
  • Provide consultation to user on appropriate action
  • Follow standard NOC, Manage service procedures.
  • Identify and Escalate situations requiring urgent attention
  • Track and route problems and requests and document resolutions
  • Resolve technical problems with add on service.
  • Prepare activity reports
  • Manage the day-to-day planning and operational aspects of the project to ensure deliverable timelines are met.
  • Be familiar and work closely with ICT team to ensure smooth After-Sales Support

Qualifications:

  • Bachelor’s degree in related field or equivalent experience
  • 2-3 years of prior IT experience, Add on service, Network, Cloud Platform, Firewall
  • Prior experience working for a service provider is a plus
  • VM ware, office 365, Amazon, Google. ICT Solution
  • Good interpersonal skill and service minded
  • Good problem solving and communication skill
  • Passion, Positive and Creative to continue development the personal skills
  • Good command of English
  • Able to work on shift, work a rotational shift schedule (4 days on, 4 days off)

Key Responsibilities:

  • Recognize, identify, and prioritize network incidents in accordance with customer business requirements, organizational policies, and operational impact.
  • Perform 24/7 network monitoring to ensure service availability, stability, and performance.
  • Perform first-level troubleshooting and restore network services within agreed Service Level Agreements (SLAs).
  • Escalate complex incidents to relevant technical teams and support service restoration through effective communication and coordination.
  • Analyze network alarms, event logs, and system performance to proactively identify potential issues before they impact customers.
  • Gain hands-on experience with carrier-grade technologies, including IP/MPLS, DWDM, SD-WAN, Internet Backbone, Cloud Connectivity, and network monitoring platforms.
  • Collaborate with cross-functional teams, including Network Engineering, Change Management,Provisioning and Technical Support, to resolve complex network issues and improve service quality.
  • Contribute to operational excellence by identifying opportunities for process improvement, automation, and knowledge sharing.
  • Continuously develop technical knowledge through on-the-job learning, technical training, and exposure to enterprise and carrier network environments.
  • Perform other duties as assigned.

Qualifications:

  • Bachelor's Degree or higher in Computer, Telecom Engineering or related fields
  • Good command of English
  • 1-6 years in computer network/ IT Helpdesk/Internet Broadband experience
  • Solid knowledge of IT Infrastructure, LAN & WAN, Ethernet, MPLS, FTTx
  • Experience with supporting IP services (TCP/IP, IPv4, IPv6, VPN, QOS, SDN, SNMP, VOIP
  • Experience with CISCO and Juniper, switches, routers
  • Certifying in CCNA / CCNP is preferred
  • Enthusiastic, can-do attitude, service minded
  • **Can work as a shift (07:00-19:30, 19:30-07:00)

Key Responsibilities:

  • Develop and maintain good relations with both new and existing customers.
  • Provide full information on products and services and arrange appointments with customers.
  • Handle full selling process from finding prospects, verifying opportunities until closing deals.
  • Communicate with Sales & Marketing team to gather required information for updating database and keep close relationship with customers.
  • Prepare sales forecasts, budgets, sales program and update the report as monthly basis.

Qualifications:

  • Work experience in Channel Sales, Project Sales or Corporate Sales and at least 2- 3 years extensive in Telecommunication Business.
  • Proficient in computer skills, especially MS Office.
  • Proficient in Presentation Skill, Negotiation Skill, and Sales Planning.
  • Good interpersonal relations.
  • Ability to work under pressure.
  • Having own car and driving license also knows direction in Bangkok and realm.

Key Responsibilities:

  • Coordinate internal resources and third parties/vendors for the flawless execution of services.
  • Ensure that all services are delivered on time and within scope.
  • Develop comprehensive project plans to be shared with clients as well as other staff members
  • Develop a detailed project plan to monitor and track progress
  • Implement and manage change when necessary to meet project outputs
  • Gather all completion information to handover service and ensure the service will be passed into the operation phase.

Qualifications:

  • Proven experience 2-5 years as Service Delivery Management, Project Management, Network Engineering or IT solution position.
  • Experience in SI company about ICT solution for 4 years”.
  • Excellent client-facing and internal communication skills
  • Strong leadership, analysis, negotiation, and problem-solving skill
  • Flexibility and ability to work and enjoy working under tight deadlines and handle pressure
  • Proven ability to lead & enable team and manage relationships with people for all levels ranging from senior management to working team members through collaboration and with high professionalism.
  • Good command of written and spoken English communication.

Key Responsibilities:

  • Design end-to-end architectures that seamlessly integrate core Enterprise Networks (SD-WAN, MPLS) with Hybrid Cloud and Enterprise AI/Data solutions (e.g., AI Chatbots, Big Data Management, Data Governance frameworks).
  • Act as a technical strategist and trusted advisor, translating complex AI, Cloud, and Security frameworks into clear, tangible business value for C-level executives.
  • Partner with the Sales team to lead technical discovery, handle high-value RFP/TOR documentations, build precise BoQs, and execute proof-of-concept (POC) sessions for advanced solutions.
  • Evaluate and benchmark emerging technologies from global infrastructure giants (Cisco, Fortinet, AWS/Azure) alongside modern AI and data tools to solve real-world enterprise constraints.
  • Oversee solution delivery frameworks to ensure that the sophisticated AI/Cloud architectures designed during presales are accurately executed by delivery teams.

Qualifications:

  • Experience 4–6+ years of proven success in Technical Pre-sales, Solution Architecture, or Technical Consulting within the IT, Telecommunications, or System Integration (SI) sector (Experience handling complex projects from major ISPs or Tier-1 SIs is highly preferred).
  • Bachelor’s degree in Computer Science, Computer Engineering, IT, Telecom Engineering, or a related field.
  • AI & Data Project Experience: Proven track record in designing or delivering infrastructure that supports AI applications, Big Data analytics, Data Migration, or Automated Q&A/Chatbot systems.
  • Strong understanding of Data Privacy, Security Governance, and deployment models (On-Premise vs. Local Cloud vs. Public Cloud) for sensitive enterprise/government data.
  • Proactive, commercially savvy, and an absolute passion for staying ahead of GenAI and ICT trends.
  • Excellent command of Business English, with the ability to lead high-level technical presentations smoothly.
  • Preferred Certifications Cloud & Data : AWS (Associate/Pro), Azure Solutions Architect (AZ-104/700), VCP, or Huawei (HCIA/HCIP).
  • Cybersecurity: Fortinet NSE (4/5/7), Palo Alto (PCNSA/PCNSE), CompTIA Security+, or CISSP.
  • Networking: CCNP, CCIE, or Aruba (ACMX/ACDX/ACCX).

Key Responsibilities:

  • Design end-to-end ICT and telecommunications solutions tailored to customer requirements.
  • Partner with Sales throughout the entire sales cycle, from discovery to proposal and solution presentation.
  • Engage directly with enterprise customers to understand business needs and recommend the most suitable solutions.
  • Prepare technical proposals, solution architecture, BOM, SOW, and RFP/RFQ responses.
  • Conduct technical presentations, workshops, and Proof of Concept (POC).
  • Collaborate with cross-functional teams to ensure solution feasibility and successful implementation.

Qualifications:

  • Bachelor’s degree in engineering, Computer Science, Information Technology, or a related field.
  • At least 3 years of experience in Pre-Sales, Solution Consulting, Network Engineering, or Solution Architecture.
  • Experience working with Enterprise or Global Business customers.
  • Strong knowledge of networking, cloud connectivity, and telecommunications technologies.
  • Experience preparing technical proposals and responding to RFP/RFQ/RFI.
  • Excellent communication and presentation skills.
  • Good command of English.

Key Responsibilities:

  • Request quotations from vendors, negotiate the best price and terms, and record information in ERP systems.
  • Build and maintain good relationships with vendors, follow up on delivery status, and handle issues such as product claims or returns.
  • Create and review purchase orders in the ERP system and coordinate with related departments to ensure on-time delivery.
  • Coordinate with the ICT team to add new products or services into the system and submit requests for management approval.
  • Track product delivery and coordinate with related teams such as SDM and the warehouse.
  • Receive and check goods, verify invoices, and record information in the ERP system with supporting documents.
  • Collect required documents from new vendors, negotiate terms and conditions, and register vendor information in the purchasing system.

Qualifications:

  • Bachelor’s degree or higher in a related field
  • Ability to use ERP systems and related programs
  • Good negotiation skills
  • At least 3–5 years of experience in purchasing or vendor management
  • Good teamwork and communication skills

Key Responsibilities:

  • Identify and develop new enterprise customers, and build a strong sales pipeline through networking and partner channels
  • Understand customer pain points and business needs, and propose suitable cloud solutions
  • Work closely with pre-sales teams to prepare technical proposals that solve real business problems
  • Manage the full sales process from lead generation, presentation, negotiation, to closing deals and contract signing
  • Maintain good relationships with existing customers to find opportunities for up- selling and cross-selling
  • Prepare weekly and monthly sales forecasts and reports for management

Qualifications:

  • Bachelor’s/University degree, master’s degree in computer science, Information Technology, Engineering or equivalent
  • Minimum 2-5 years of experience in B2B / Corporate Sales (Experience in Cloud Solution, Telecommunication, IT Solutions, System Integrator, or Software is highly desirable).
  • Experience working in a team collaboratively.
  • Self-Management to prioritize work and self-learning.
  • Well-developed teamwork habits and communication skills
  • Maintain an acceptable attendance record, be punctual, and meet deadlines.
  • Possess strong analytical and problem-solving skills.

Key Responsibilities:

  • Hunt for new enterprise clients and build a solid B2B sales pipeline.
  • Manage the full sales cycle: from cold calling and pitching to negotiating and closing deals.
  • Understand client needs and pitch solutions covering High-Speed Internet, Cloud, and Cyber Security.
  • Partner with pre-sales and technical teams to design proposals that fit the client's business.
  • Track sales forecasts and hit monthly/quarterly revenue targets.
  • Build long-term relationships with clients to drive recurring revenue and cross sell.

Qualifications:

  • 3–5 years of B2B sales experience (IT, Telecom, System Integration, or Cloud preferred).
  • Familiarity with Cloud Computing, Network Infrastructure, or Cyber Security.
  • Strong communication and negotiation skills—you can explain tech concepts simply to business owners.
  • Self-motivated, target-driven, and comfortable opening new doors.
  • Must have a personal car and a valid driver’s license. in Bangkok and realm.

Key Responsibilities:

  • Develop and maintain full stack applications for network automation and operational workflows.
  • Build backend services and APIs using Python, FastAPI, Node.js, PHP, or related technologies.
  • Create web applications and user-friendly dashboards using Next.js, React, or modern frontend frameworks.
  • Design and maintain relational databases, data models, and SQL queries for application and reporting needs.
  • Integrate OSS, network systems, databases, and internal platforms through APIs and microservices.
  • Develop automation for network health checks, provisioning, configuration validation, monitoring, and alerting.
  • Support Rule Engines, AI, and Machine Learning solutions for predictive monitoring and proactive issues
  • detection.
  • Test, troubleshoot, and enhance application performance, security, scalability, and reliability.
  • Collaborate with technical teams to translate operational needs into practical digital solutions.
  • Prepare system designs, database schemas, API specifications, and technical documentation.

Qualifications:

  • Bachelor’s degree in computer science, Computer Engineering, Information Technology,
  • Telecommunications Engineering, or a related field.
  • Experience in Full Stack Development, Application Development, System Integration, or Network
  • Automation.
  • Proficiency in Python and backend frameworks such as FastAPI, Node.js, or PHP.
  • Experience with Next.js, React, TypeScript, or other modern frontend technologies.
  • Strong knowledge of SQL, relational databases, database design, and query optimization.
  • Knowledge of REST APIs, microservices, data integration, and system integration.
  • Experience with Git, CI/CD, testing, deployment, and troubleshooting.
  • Knowledge of Grafana, Prometheus, PRTG, AI, Machine Learning, or Rule Engines is an advantage.
  • Knowledge of MPLS, DWDM, IP Network, OSS, or telecommunications networks is an advantage.

Key Responsibilities:

  • Monitor customers' security infrastructure and security events through Security Operations Center (SOC) monitoring platforms on a 24x7 shift basis.
  • Identify, classify, prioritize, and perform initial analysis of security alerts and incidents based on severity and business impact.
  • Investigate security events by reviewing logs, alerts, endpoint activities, and network traffic to determine potential threats.
  • Escalate security incidents to internal security teams or technology vendors in accordance with established incident response procedures.
  • Coordinate with customers, vendors, and internal teams throughout the incident lifecycle until resolution.
  • Track incident progress and ensure timely resolution in accordance with SLA commitments.
  • Document investigation findings, incident timelines, identified causes(Root Cause), and recommended corrective actions.
  • Support root cause analysis and document investigation findings, incident timelines, and corrective actions.
  • Provide regular incident status updates to customers and stakeholders.
  • Maintain accurate operational records and update knowledge base documentation.
  • Participate in shift handover to ensure continuity of monitoring activities.
  • Support continuous improvement initiatives to enhance monitoring effectiveness and operational efficiency.
  • Perform other duties as assigned.

Qualifications:

  • Bachelor’s degree in computer engineering, Computer Science, Information Technology, Cyber Security, Telecommunications, or related fields.
  • 1–3 years of experience in SOC, CSOC, Network Operations Center (NOC), IT Operations, or CyberSecurity.
  • Basic understanding of networking concepts (TCP/IP, DNS, Routing, Firewall, VPN).
  • Knowledge of cybersecurity concepts such as SIEM, IDS/IPS, Endpoint Security, Malware, and Incident Response.
  • Experience using security monitoring tools is an advantage (e.g., Microsoft Sentinel, Splunk, QRadar, FortiSIEM, ArcSight).
  • Relevant certifications such as Security+, SC-200, CEH, CySA+, or vendor-specific SIEM certifications are an advantage.
  • Familiarity with Windows/Linux logs, Active Directory, cloud environments, and common security log sources.
  • Basic knowledge of threat intelligence, IOC analysis, and the MITRE ATT&CK framework.
  • Strong analytical and troubleshooting skills.
  • Good communication and coordination skills.
  • Able to work rotating shifts in a 24x7 operation.
  • Good command of written and spoken English. A valid TOEIC score will be considered an advantage.

Key Responsibilities:

  • Manage end-to-end service delivery for international customers, ensuring projects are
  • delivered on time, within scope, and with high-quality service.
  • Act as the primary point of contact for international customers, providing clear
  • communication on project progress, risks, and required actions.
  • Coordinate cross-functional teams and vendors to support smooth service
  • implementation and timely issue resolution.
  • Maintain project plans, track milestones, and ensure all technical documents are
  • completed for successful project closure and handover.
  • Design fiber route/ DWDM/ IP Network and prepare costing according to customers
  • requirement, ensuring technical specifications are complied.
  • Work with partners for cross border connectivity, process for MOU signing, equipment
  • setup and fiber matching.
  • Work with Planning teams in executing fiber rollout and DWDM implementation
  • activities.

Qualifications:

  • Bachelor’s degree in Telecommunications Engineering, Electrical Engineering, Computer Engineering, Information Technology, or a related field.
  • Minimum 5 years of experience in telecommunication infrastructure planning, service delivery, network implementation, or project coordination.
  • Experience in network route design, technical solution planning, cost estimation, and project implementation.
  • Good understanding of project management processes, including project planning, milestone tracking, risk management, documentation, and handover.
  • Strong coordination skills with cross-functional teams, vendors, partners, and international customers.
  • Able to communicate effectively in English and Chinese.

Key Responsibilities:

  • Design, implement, and optimize enterprise network infrastructures including LAN, WAN, VPN, MPLS, and Data Center networks
  • Installing and configuring network equipment such as routers, switches, encoder/decoder (DVB), firewall
  • Monitor network performance, conduct regular performance analysis, and provide recommendations to enhance efficiency and reliability
  • Troubleshoot and resolve complex network incidents, working cross-functionally with internal teams to ensure timely issue resolution
  • Perform root cause analysis of network faults and implement preventive measures
  • Collaborate with engineering, operations, and project teams to support infrastructure changes and upgrades
  • Maintain accurate documentation of network topologies, configurations, and operational procedures
  • Prepare technical reports and present network status updates to stakeholders and management

Qualifications:

  • Bachelor's Degree in Telecommunication or related area
  • 3 - 5+ years of hands-on experience in enterprise or carrier network engineering or operations
  • Strong knowledge of IP networking fundamentals, routing protocols (BGP, OSPF, ISIS), SR-MPLS, SRTE, Switching technologies (VLAN, QinQ, VxLAN, STP), and QoS
  • Ability to think through problems and visualize solutions
  • Ability to implement, administer, and troubleshoot network infrastructure devices, including wireless access points, firewall, routers, switches, controllers
  • Good analytical and problem-solving skills
  • Experience using network monitoring and diagnostic tools (e.g., SolarWinds, Wireshark, PRTG, NetFlow)
  • Solid understanding of network security principles and best practices
  • Hands-on experience in developing Python scripts for network automation, monitoring, and data analysis tasks
  • Familiarity with libraries such as Netmiko, NAPALM, Paramiko, or REST API integration is an advantage
  • CCNP, CCIE, HCIP, HCIE and/or CISSP highly valued

Key Responsibilities:

  • Draft, review and update documents or contracts used for company's internal matters both in Thai and English (e.g., Partnership Agreement, contracts with customers and vendors, Non-Disclosure Agreement, Terms & Conditions)
  • Draft notices and other documents related to litigation matters, coordinate with external legal counsel, and support legal proceedings with related authorities including police officers and courts
  • Monitor related (existing & new) laws and regulations, especially regulations related to NBTC and licensed telecommunication businesses, to identify implications and ensure compliance with business operations
  • Secure and maintain all necessary approvals and certificates for the company's activities to comply with the law
  • Provide legal advice, legal opinion, and practical guidance related to business operations, regulatory compliance, and dispute management Identify and resolve potential legal risks across all business activities
  • Manage projects that may require the engagement of a law firm
  • Support legal coordination and provide legal consultation related to investigations, disputes, or legal cases involving external parties, regulatory authorities, police officers, and courts
  • Identify, assess, and resolve potential legal and regulatory risks across all business activities

Qualifications:

  • Bachelor’s degree in laws (master’s degree or Thai barrister-at-law is a plus)
  • Have minimum 5 years’ experience in legal work
  • Experience as Legal in tech companies is a plus
  • Team-oriented professionals and Commercial awareness
  • Communication and interpersonal skills
  • Time management, hardworking, well-organized and attention to detail, results oriented and “Can Do” attitude
  • Able to work under pressure
  • Strong qualitative, analytical skills
  • Good in spoken and written English is a MUST
  • Effective verbal and written communications
  • Able to work independently with a strong ownership mindset
Contact HR
ติดต่อฝ่ายบริหารทรัพยากรบุคคลของเรา

บริษัท ซิมโฟนี่ คอมมูนิเคชั่น จำกัด (มหาชน)

123 ซันทาวเวอร์ส อาคารบี ชั้น 35-36 ถนนวิภาวดีรังสิต แขวงจอมพล เขตจตุจักร กรุงเทพฯ 10900