Lead Software Engineer - C/C++, Unix/Linux, ARQC, ARPC, HSM

Job description

Job Description - -------------- Role Overview: We are seeking a Lead Software Engineer with strong expertise in C/C and Unix/Linux systems to design, develop, and lead high-performance, scalable, and secure enterprise applications. The role requires hands-on technical leadership, architecture ownership, and cross-team collaboration to deliver mission-critical systems. Lead engineers are expected to own complex problems, drive architectural decisions, and mentor engineering teams, while ensuring high-quality software delivery. Key Responsibilities: Technical Leadership \& Architecture · Design and develop high-performance, low-latency systems using C/C on Unix/Linux platforms · Own end-to-end architecture for components and services, ensuring scalability and resiliency · Introduce and adopt modern design patterns, frameworks, and best practices · Provide technical direction and guidance to engineering teams. Development \& Delivery · Lead design, development, testing, and deployment activities · Write efficient, maintainable, and secure C/C code adhering to coding standards. · Drive automation of builds, testing, and deployment pipelines · Troubleshoot complex production issues and ensure system stability System Design \& Performance · Architect systems for high throughput, fault tolerance, and performance optimization · Perform performance tuning, memory optimization, and multithreading enhancements · Ensure system reliability and availability (high uptime expectations) Collaboration \& Stakeholder Management · Work closely with product, QA, and operations teams to prioritize and deliver solutions · Drive design discussions, trade-offs, and cross-functional decisions · Coordinate across geographically distributed teams Mentorship \& Engineering Excellence · Mentor developers and promote best practices (code reviews, TDD, secure coding). · Conduct technical interviews and help build high-performing teams · Lead post-incident reviews and drive continuous improvement initiatives Required Technical Skills: · Strong experience of Cryptography in Payment cycle. · Strong experience of Session Key Derivation and validation. · Strong experience of Triple DES and Advanced Encryption Standard techniques. · Strong understanding of Thales or equivalent Payment Validation HSM modules and its commands. · Strong programming expertise in C and C . · Deep understanding of Unix/Linux systems, shell scripting, and system internals · Strong understanding multi threading in C and Linux · Experience with Multithreading and concurrency, Memory management and performance tuning, Socket programming / IPC mechanisms · Knowledge of data structures, algorithms, and design patterns · Familiarity with build tools (Make/CMake), debugging tools (gdb), gtest, and profiling tools. · Strong experience of Github and Github Copilot. · Strong experience of using Copilot with MCP servers. All About you: · Bachelor's or Master's degree in Computer Science, Engineering, or related field (or equivalent experience) · Experience with Agile methodologies, strong understanding of DevOps practices and CI/CD pipelines · Experience writing unit, integration, and system tests · Experience designing distributed systems or high-scale enterprise applications · Exposure to security standards (OWASP, secure coding practices). · Experience in payment systems / transaction processing / financial domain · Exposure to cloud-native or hybrid systems · Knowledge of additional languages (Java/Python) is a plus · Strong problem-solving and analytical skills · Ability to drive decisions and manage technical trade-offs · Excellent communication and stakeholder management