Freshers Software Engineer – L&T D&DC Land Systems

L&T’s interview process typically starts with a timed online aptitude test covering quantitative, logical reasoning and basic programming. Successful candidates move to a technical interview where interviewers probe deep into C/C++ fundamentals, operating system concepts, real‑time OS basics, and networking protocols. The final HR round assesses communication, teamwork, and cultural fit. Preparation should focus on core programming, RTOS basics, and clear articulation of project experiences.

Round 1: Online Aptitude Test → Round 2: Technical Interview (focus on C/C++, OS concepts, RTOS, networking) → Round 3: HR Interview (fitment, communication, career goals)

L&T is known for a disciplined work culture that balances challenging projects with employee development. The company provides structured training, clear performance metrics, and encourages knowledge sharing across teams. Employees enjoy a reasonable work‑life balance, with flexible timings for certain projects and ample opportunities for internal mobility.

Degree: B.Tech / B.E (any engineering branch) with minimum 60% aggregate; No active backlogs; Batch: 2025 or 2026; Experience: 0–2 years (freshers acceptable); Strong fundamentals in C/C++ and operating systems; Good communication skills.

Larsen & Toubro (L&T) is one of India’s largest engineering conglomerates, with a legacy of over 80 years in delivering complex infrastructure, defence, and technology solutions. The Precision Engineering & Systems division focuses on high‑end land systems, defence platforms and mission‑critical software that power critical national projects. Working at L&T offers exposure to cutting‑edge technologies, a structured career ladder, and the chance to contribute to projects that have a real impact on national security and infrastructure. The role of Software Engineer – D&DC Land Systems is designed for fresh engineering graduates who are passionate about system‑level programming. You will be part of the DEIC – L&T Precision Engineering & Systems IC team, developing and maintaining software that runs on real‑time operating systems such as VxWorks and QNX. The job goes beyond simple coding; it involves deep interaction with operating system kernels, multi‑threaded architectures, and communication protocols used in land‑based defence platforms. Key Responsibilities: 1. Design, develop, and test C/C++ modules for real‑time embedded platforms. 2. Implement multi‑threaded and multi‑process solutions, ensuring proper synchronization and resource management. 3. Develop inter‑process communication (IPC) mechanisms and integrate distributed system components. 4. Write device drivers and communication stacks for serial, Ethernet, CAN, 1553, NMEA and ModBus interfaces. 5. Participate in debugging sessions, perform root‑cause analysis, and provide fixes for field issues. 6. Create and maintain build scripts, configuration files, and documentation using tools like Qt and Jira. 7. Collaborate with hardware engineers, system architects, and QA teams to ensure end‑to‑end system reliability. 8. Conduct performance profiling and optimization to meet real‑time constraints. 9. Support customer sites by reproducing issues, providing technical assistance, and preparing detailed reports. 10. Stay updated with the latest trends in embedded Linux, RTOS, and networking technologies. Tech Stack: C, C++, Linux, VxWorks, QNX, Qt, Jira, Multi‑threading, IPC, Distributed Systems, Serial, Ethernet, CAN, 1553, NMEA, ModBus, IP, VLAN, Switching, Debugging tools. Growth Path: L&T offers a clear progression from Software Engineer to Senior Engineer, Lead Engineer, and eventually Architecture or Project Management roles. Continuous learning programs, certifications in embedded systems, and exposure to defence projects accelerate career growth. Why Join L&T? You will work on mission‑critical land systems that shape the nation’s defence capabilities, gain hands‑on experience with real‑time operating systems, and benefit from a robust mentorship culture. The company’s emphasis on innovation, structured training, and a supportive work environment makes it an ideal launchpad for ambitious engineers.