Senior Telecom Software Engineer (.NET/C#)

Senior Telecom Software Engineer (.NET/C#)

Location: Kuala Lumpur, Malaysia

Work Mode: Hybrid

Employment type: Permanent

Our client is a global technology services and digital engineering organization with multi-billion-dollar revenue and operations across numerous countries worldwide. With a workforce of over 20,000 professionals, they deliver innovative solutions in cloud, data, AI, and enterprise modernization to leading enterprises across industries.

We are seeking an experienced Senior Telecom Software Engineer (.NET/C#) to develop and maintain backend services for advanced telecommunications investigation and analytics platforms.

Responsibilities

Develop and maintain telecommunications protocol decoders for LTE, 5G NR, GSM, and WCDMA.

Implement chipset-specific updates based on Interface Control Document (ICD) specifications from major chipset vendors.

Decode and analyse throughput metrics, including PDSCH, PUSCH, and MAC downlink/uplink scheduled throughput.

Design and implement assignment orchestration systems, such as state machines and work-order executors.

Develop and enhance map user-interface components and geospatial visualisation features.

Optimise database and application performance using SQL Server and T-SQL.

Resolve chipset-specific decoder issues and troubleshoot production defects.

Manage release processes, including changelog preparation, code freezes, and user manual updates.

Participate in architecture reviews, sprint activities, and maintain technical documentation.

Requirements

Must-have:

Degree in Computer Science, Telecommunications or an equivalent discipline.

Four to seven years of strong development experience in C# and C/C++.

Deep understanding of telecommunications protocols, including LTE, 5G NR, GSM, and WCDMA.

Knowledge of SQL Server and T-SQL.

Ability to interpret complex chipset ICD specification documents from multiple chipset vendors.

Ability to produce clear technical documentation, including user manuals, release notes, and changelogs.

Ability to collaborate with globally distributed teams.

Customer-oriented approach to resolving production defects and L3 escalations.

Nice-to-have:

Understanding of network protocol stacks, including NAS, RRC, RLC, MAC, and PHY.

Experience decoding chipsets from major chipset vendors.

Experience reading and implementing chipset ICD specifications.

TypeScript development experience for map or user-interface components.

Experience with protocol-analysis tools.

Experience in telecommunications analytics or network optimisation.

Experience handling large datasets and high-performance parsing.

Why Join Us

Work on impactful projects at the forefront of telecommunications technology.

Collaborate with talented professionals across the globe.

Enjoy opportunities for professional growth and development.

Contribute to innovative solutions that make a difference for customers worldwide.