Software Engineer — D&DC Land Systems

Round 1: Technical interview (coding & system design) → Round 2: Technical interview (embedded & real‑time OS) → Round 3: HR interview

L&T offers a structured work environment with emphasis on safety, quality and continuous learning. Employees enjoy clear career ladders, regular training programs and a healthy work‑life balance.

Candidates usually go through a three‑round process. The first round tests coding and data structures, the second focuses on embedded systems and real‑time OS concepts, and the final round is HR. Questions often cover C/C++ syntax, multithreading, IPC, and real‑time scheduling. Preparation on coding platforms and embedded theory is recommended.

Bachelor of Technology (B.Tech) or Bachelor of Engineering (B.E.) in any branch with a minimum of 60% marks (or equivalent CGPA). Freshers from 2025, 2026, and 2027 batches are eligible. Candidates must have cleared all subjects; no backlog policy is accepted.

Larsen & Toubro (L&T) is India’s largest engineering conglomerate and a global leader in technology, manufacturing and construction. The Precision Engineering & Systems division, headquartered in Talegaon, is a premier defense and aerospace arm that designs and delivers advanced Defense & Development Control (D&DC) systems for land, naval and air platforms. With a legacy of innovation, L&T Precision Engineering & Systems plays a pivotal role in India’s defense modernization initiatives, providing cutting‑edge solutions that enhance national security. The Software Engineer – D&DC Land Systems role is a full‑time, permanent position focused on embedded and systems software development for mission‑critical land combat systems. As part of the D&DC Land Systems team, you will work on real‑time operating systems, distributed architectures, and communication protocols that underpin the reliability and performance of defense platforms. Your responsibilities will include designing and implementing tools to accelerate software development, debugging, and diagnostics, as well as troubleshooting issues that arise in the field. Key responsibilities include: 1. Writing high‑quality, maintainable code in C and C++ for embedded platforms. 2. Developing and debugging applications on Linux and real‑time OSes such as VxWorks and QNX. 3. Designing multi‑threaded and multi‑process solutions with robust inter‑process communication. 4. Implementing diagnostics, test codes, and built‑in self‑test features for reliability. 5. Working with serial, Ethernet, CAN, ModBus, NMEA, and other physical layer protocols. 6. Configuring IP protocols, VLANs, and Ethernet switching for distributed systems. 7. Participating in root‑cause analysis and performance tuning of large software stacks. 8. Collaborating with cross‑functional teams to integrate hardware and software components. 9. Contributing to design reviews, documentation, and code quality standards. 10. Supporting customer sites and providing post‑deployment assistance. The technical stack spans C/C++, Linux, VxWorks/QNX, QT for UI, and embedded protocols. The role offers a clear growth path: from Junior Software Engineer to Senior Engineer, System Architect, and eventually Technical Lead or Project Manager. L&T’s structured career ladder, continuous learning programs, and exposure to high‑impact defense projects make it an attractive destination for freshers eager to build a long‑term career. Why join L&T? The company offers a stable work environment, competitive compensation, and opportunities to work on cutting‑edge technology that directly contributes to national security. Employees benefit from extensive training, mentorship, and a culture that values safety, quality, and innovation. If you are passionate about embedded systems, real‑time OS, and want to make a tangible impact, L&T Precision Engineering & Systems is the place to start your journey.