Backend Software Engineer – Telecom Protocols

Oxydata Software Sdn Bhd; Kuala Lumpur; Hybrid; MYR 90,000 - 130,000; Full time

Job summary

Oxydata Software Sdn Bhd is seeking a Backend Software Engineer – Telecom Protocols to design, develop and maintain backend services for telecom platforms in a hybrid Kuala Lumpur setup. You will implement decoders for LTE/5G protocols and handle NAS/RRC/RLC/MAC/PHY parsing, while coordinating across Sweden, India, and Malaysia.

The role requires 4–5 years of C# and C/C++ experience, strong SQL Server knowledge, and the ability to interpret chipset ICDs from major vendors.

Qualifications

• Degree in Computer Science, Telecommunications or equivalent.
• 4–5 years of software development experience in C# and C/C++.
• Strong understanding of LTE, 5G NR, GSM, and WCDMA telecom protocols.
• Experience interpreting chipset ICD specifications from Qualcomm, Samsung, and MediaTek.
• Knowledge of SQL Server and T-SQL.
• Understanding of NAS, RRC, RLC, MAC, and PHY protocol stacks.
• Ability to interpret complex chipset ICD documentation.
• Experience collaborating with globally distributed teams (Sweden, India, Malaysia).

Responsibilities

• Develop and maintain telecom protocol decoders for LTE, 5G NR, GSM, and WCDMA message parsing.
• Implement chipset ICD updates for leading vendors.
• Decode throughput metrics and parsing for NAS, RRC, RLC, MAC, and PHY layers.
• Design and implement assignment orchestration systems; support network troubleshooting and benchmarking.
• Optimize database and application performance using SQL Server and T-SQL.
• Collaborate with distributed teams and participate in architecture reviews and Agile sprints.
• Maintain and update technical documentation and release notes.

Skills

C# / C/C++

Telecom protocols

SQL Server / T-SQL

Software development

Education

Degree in Computer Science or Telecommunications

Tools

ICD specifications

Job description

Job Openings Backend Software Engineer – Telecom Protocols

About The Job Backend Software Engineer – Telecom Protocols

Backend Software Engineer – Telecom Protocols

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 Backend Software Engineer – Telecom Protocols to develop and maintain backend services supporting advanced telecommunications platforms.

Responsibilities

• Develop and maintain telecom protocol decoders for LTE, 5G NR, GSM, and WCDMA message parsing.
• Implement chipset-specific ICD (Interface Control Document) updates for leading vendors such as Qualcomm, Samsung, and MediaTek.
• Decode throughput metrics and implement parsing for NAS, RRC, RLC, MAC, and PHY protocol layers.
• Design and implement assignment orchestration systems and support network troubleshooting and benchmarking capabilities.
• Optimize database and application performance using SQL Server and T-SQL.
• Resolve chipset-specific decoder issues and troubleshoot production defects and customer escalations.
• Support release activities, including preparing release notes, code freezes, and user manual updates.
• Collaborate with distributed teams across Sweden, India, and Malaysia, participating in architecture reviews and Agile sprint activities.
• Maintain and update technical documentation, including user manuals and changelogs.

Requirements

Must-have:

• Degree in Computer Science, Telecommunications or an equivalent qualification.
• Minimum four to five years of strong software development experience in C# and C/C++.
• Deep understanding of telecom protocols, including LTE, 5G NR, GSM, and WCDMA.
• Experience interpreting and implementing chipset ICD (Interface Control Document) specifications.
• Knowledge of SQL Server and T-SQL.
• Understanding of network protocol stacks, including NAS, RRC, RLC, MAC, and PHY.
• Ability to interpret complex chipset ICD specification documents from Qualcomm, Samsung, and MediaTek.
• Strong technical documentation skills, including user manuals, release notes, and changelogs.
• Ability to collaborate effectively with globally distributed teams across Sweden, India, and Malaysia.
• Customer-oriented approach to resolving production defects and L3 escalations.

Nice-to-have

• Experience with Qualcomm, Samsung Exynos, or MediaTek chipset decoding.
• Experience developing TypeScript-based map/UI components.
• Experience using protocol analysis tools such as QXDM and Wireshark.
• Experience in telecommunications analytics or network optimisation.
• Experience handling large datasets and high-performance protocol parsing.

Education

• Degree in Computer Science, Telecommunications or an equivalent qualification.

Why Join Us

• Be part of a dynamic, collaborative environment where your expertise will directly impact advanced telecom solutions used globally.
• Opportunity to work with cutting-edge technologies, solve complex challenges, and collaborate with talented professionals across multiple countries.
• Grow your career in a company that values innovation, quality, and continuous improvement.