About the job

Sigma Group, established in 2003, has become a significant player in the telecommunications industry. Sigma Group comprises multiple brands, including Sigma Telecom LLC, Sigma Softwares, and Sigma Solutions, among others. The organization is committed to expanding its investments and sustaining it's growth alongside evolving technology.

As a Technical Support Engineer at Sigma Telecom, you will play a critical role in ensuring the stability, performance, and reliability of our global VoIP and SMS infrastructure, with a strong focus on B2B customer support and technical troubleshooting.

You will be responsible for real-time network monitoring, proactive issue detection, and rapid problem resolution, acting as a key technical point of contact for our international B2B customers and carrier partners. Your work will directly impact customer satisfaction, service continuity, and SLA performance across global telecom traffic.

This role sits at the center of our global operations, requiring close collaboration with engineering teams, sales, and international operators to analyze issues, communicate clearly with customers, and deliver effective technical solutions.

You will operate modern telecom platforms, automation systems, and next-generation network tools in a fast-paced, high-impact environment, where your technical expertise, communication skills, and problem-solving ability directly contribute to business continuity, customer trust, and traffic growth.

This position is ideal for engineers who are passionate about telecom technologies, network operations, B2B technical support, troubleshooting and continuous improvement.

🔹 Responsibilities

• Monitor systems and traffic in real time; manage ticket flow and incident resolution
• Proactively troubleshoot issues related to VoIP and SMS traffic
• Control service quality through regular testing and performance checks
• Provide technical solutions and communicate with customers during incidents
• Support customer tickets
• Improve response times and operational efficiency for customer issues
• Monitor, report, and analyze real-time network performance statistics
• Receive, evaluate, document, and track customer complaints via ticketing systems
• Collaborate closely with engineers, sales teams, and international partners
• Manage interconnection procedures with telecom partners and operators

🔹 Requirements

• University degree in Engineering (Telecommunications, Electronic Communications, Computer, Electrical & Electronics, or any related Engineering field)
• Good command of written and spoken English
• Ability to work in regular shifts
• Strong willingness to learn new technologies and continuously improve
• Excellent communication and interpersonal skills
• Detail-oriented, analytical, problem-solver, and team player

✨ Why Join Sigma Group?

You will be part of real digital transformation. Your work directly shapes how multiple companies operate.

Direct impact on global traffic operations

Opportunities to innovate and lead technical development

Fast-growing international technology environment

Your ideas matter. We are not a place where innovation is blocked — we encourage it.

You will work with modern tools, especially AI, automation, and next-generation systems.

You will grow fast. The role involves continuous learning, new technologies, and real responsibility.

We are a dynamic, young, and collaborative environment where problem-solvers thrive.

🔹 What We Offer

A dynamic and collaborative work environment

Opportunity to build advanced automations and AI-powered solutions

Growth within a multi-company structure

Competitive salary & performance-based carrier growth

Regular team-building activities and social events

Office located in Ataşehir, Istanbul