Software Engineer - C Programming

Description :

One of our esteemed clients is seeking a highly skilled and motivated Software Engineer with strong expertise in C programming and Linux-based systems to work on high-performance, low-latency, enterprise-grade applications. This role is ideal for engineers who enjoy working close to the system layer and are passionate about building reliable, scalable, and efficient software for mission-critical environments.

The selected candidate will play a key role in designing and developing robust backend and system-level applications that power large-scale distributed systems. You will be working on performance-sensitive components where reliability, efficiency, and correctness are paramount.

Key Responsibilities :

- Design, develop, test, and maintain system-level applications using C on Linux platforms, ensuring high performance, stability, and scalability.

- Build and enhance socket-based network applications using TCP/IP and UDP protocols, with a focus on low-latency communication and high throughput.

- Implement and manage multithreaded and concurrent applications using POSIX threads (pthreads), ensuring thread safety, synchronization, and efficient resource utilization.

- Analyze, profile, and optimize applications to address performance bottlenecks, memory leaks, race conditions, and concurrency issues.

- Work extensively with system-level debugging and diagnostic tools such as GDB, strace, ltrace, valgrind, and performance profiling utilities to identify and resolve complex issues.

- Participate in architecture discussions and contribute to design decisions for scalable and fault-tolerant systems.

- Collaborate closely with cross-functional teams, including product managers, system architects, QA engineers, and DevOps teams, to deliver high-quality software solutions.

- Write clean, maintainable, and well-documented code, following coding standards, best practices, and version control processes.

- Develop unit tests, integration tests, and support automated testing pipelines to ensure software quality and reliability.

- Support application deployment, monitor production systems, and troubleshoot live issues in a fast-paced, high-availability environment.

- Participate in code reviews, knowledge-sharing sessions, and continuous improvement initiatives to raise engineering standards across the team.

Required Skills & Qualifications :

- Strong proficiency in C programming, with a solid understanding of memory management, pointers, data structures, and low-level system interactions.

- Hands-on experience working on Linux/Unix systems, including system calls, process management, signals, and file systems.

- Proven experience in socket programming (TCP/UDP) and network-centric application development.

- Solid understanding of multithreading, synchronization mechanisms, mutexes, semaphores, and concurrent programming concepts.

- Experience with debugging, profiling, and performance optimization tools in Linux environments.

- Familiarity with build systems, makefiles, and version control tools such as Git.

- Strong problem-solving skills and the ability to debug complex system-level issues.

Preferred Qualifications :

- Experience working on high-performance or low-latency systems, such as trading platforms, telecom systems, networking products, or real-time applications.

- Exposure to distributed systems, inter-process communication (IPC), and messaging frameworks.

- Knowledge of memory optimization techniques and performance tuning on Linux.

- Understanding of security best practices in system-level programming.

Required Technical Skills- Must Have :

- 2 to 4 years of hands-on experience in C programming

- Strong experience working on Linux / UNIX environments

- Hands-on experience with Socket Programming (TCP/IP, UDP)

- Strong knowledge of Multithreading / Concurrency (pthreads)

- Understanding of process management, IPC, and memory management

- Experience with Makefiles, GCC, GDB

Good to Have :

- Experience with epoll / select / poll

- Knowledge of network protocols (HTTP, SSL, FTP)

- Exposure to performance tuning and low-latency systems

- Experience with version control tools (Git)

- Exposure to financial / banking systems (preferred)

Education : BE / BTech / MCA / MSc (Computer Science or related field)

Soft Skills :

- Strong problem-solving and analytical skills

- Good communication skills

- Ability to work independently and in a team

- Attention to detail and ownership mindset