Domain Architect

Nokia; Thiruporur; On-site; INR 2,500,000 - 4,500,000; Full time

Benefits offered by this job

Health insurance

Career growth

Learning programs

Job summary

Nokia in India is seeking a Lead Developer with telecom core domain expertise across 2G/3G/4G/5G Core Networks, VoIP/VoWiFi, and Location Services (LCS). You will lead design and delivery of scalable, carrier‑grade telecom solutions and mentor a team of engineers.

The role requires hands‑on experience in C/C++ or Java, strong knowledge of 3GPP standards, Linux, databases, and cloud‑native technologies, plus collaboration with product managers and QA.

Qualifications

• Held a Graduate/Postgraduate in Engineering with 10-15 years of telecom software development in C++/Java.
• Deep understanding of 2G/3G/4G/5G core networks, VoIP/VoWiFi, and LCS.
• Strong knowledge of 3GPP standards, telecom protocols, Linux, and cloud-native technologies.
• Experience designing scalable, carrier-grade telecom software.

Responsibilities

• Design, code, and implement scalable software applications with focus on performance.
• Collaborate with Architects, product managers, and QA testers.
• Create technical documentation and troubleshoot performance bottlenecks.
• Mentor developers and review code quality; contribute to architecture discussions.
• Optimize applications for scalability and reliability in telecom environments.

Skills

Multithreading

IPC

Client-server

SQL

NoSQL

Linux

Docker

Kubernetes

RESTful API

Telecom protocols

Education

Engineering degree

Tools

Docker

Podman

Kubernetes

Helm

Job description

Seeking a Lead Developer with strong Telecom core domain expertise across 2G/3G/4G/5G Core Networks, VoIP/VoWiFi, and Location Services (LCS). The role requires hands‑on experience in C/C++ or Java development, deep understanding of 3GPP standards and telecom protocols, and expertise in Linux, databases, and cloud‑native technologies. You will lead the design and delivery of scalable, carrier‑grade telecom solutions.

How You Will Contribute And What You Will Learn

• Application Development – Designing, coding, and implementing software applications. Ensuring scalability, security, and performance of applications.
• Working with cross-functional teams, including Architects, product managers, and QA Testers.
• Creating technical documentation for code, processes, and applications, troubleshooting and resolving performance bottlenecks in applications.
• Mentoring and supporting developers to foster a culture of continuous improvement.
• Reviewing & Optimizing applications code quality and performance, participating in software architecture and design discussions, contributing ideas and solutions

Key Skills And Experience

Must Have Skills

• A Graduate / Post graduate in Engineering or equivalent with 10-15 Years of Telecom Software Application Development experience in C++/Java application development (any one is mandatory) with focus on Multithreading, Inter Process Communication (IPC), Client-server based communication model, SQL and NoSQL DBMS, Linux knowledge is a must.
• In-depth understanding of 2G/3G/4G/5G/VoIP/VoWi-fi network architecture, related call flows and protocols (SS7, Diameter, SIP protocols with understanding of messages involved in each these protocols)
• Good understanding of 3GPP (E-UTRAN, NG-RAN, IMS etc.), OMA, ATIS, NENA and related standards for Location Service (LCS), Cloud-native and traditional BareMetal, Virtualized solutions
• RestFul API designing (using HTTP and/or HTTP2).
• Good in-depth Knowledge of Linux particularly RHEL/Rocky Linux concepts including understanding and fine tuning of kernel parameters.
• Good working experience with container runtime like Docker/Podman and helm for k8s package management.

Good to Have Skills

• Knowledge of Location Services (LCS) positioning methods such as CID/ECID, TDOA, and AGNSS.
• Programming knowledge in Golang, Python, Lua, JavaScript, or Shell scripting.
• Exposure to DevOps practices, CI/CD pipelines, Jenkins, Ansible, and Agile software development methodologies.

About Us

Advancing connectivity to secure a brighter world.

Nokia is a global leader in connectivity for the AI era. With expertise across fixed, mobile and transport networks, powered by the innovation of Nokia Bell Labs, we’re advancing connectivity to secure a brighter world.

Learn more about life at Nokia .

Our recruitment process

We act inclusively and respect the uniqueness of people. Our employment decisions are made regardless of race, color, national or ethnic origin, religion, gender, sexual orientation, gender identity or expression, age, marital status, disability, protected veteran status or other characteristics protected by law. We are committed to a culture of inclusion built upon our core value of respect.

If you’re interested in this role but don’t meet every listed requirement, we still encourage you to apply. Unique backgrounds, perspectives, and experiences enrich our teams, and you may be just the right candidate for this or another opportunity.

The length of the recruitment process may vary depending on the specific role’s requirements. We strive to ensure a smooth and inclusive experience for all candidates.

Discover more about the recruitment process at Nokia .

About The Team

Some of our benefits in India:

• Flexible and hybrid working arrangements to support work–life balance
• Health and well-being support – medical insurance for you and your family, health check-ups, life and accident insurance, well-being programs, and employee resource groups
• A minimum of 90 days of Maternity and Paternity Leave based on eligibility
• Personal Support Service 24/7 – a confidential support channel open to all Nokia employees and their families in challenging situations
• Career growth & mobility – technical career paths, job rotations, international assignments, and relocation support
• Continuous learning – technical certifications, mentoring programs, coaching, and digital learning platforms
• Opportunities to innovate and contribute through Nokia’s research and development environment
• Recognition programs that celebrate outstanding contributions
• Workplace support – ergonomic working support and mobile device programs based on eligibility