Senior Software Engineer

<p><strong>Who we are:</strong></p><p>At DefSecIntel Solutions, we protect what matters by building systems that operate where failure is not an option.</p><p>We deliver combat-proven, end-user-driven defence and security solutions for Europe’s border security, defence, and critical infrastructure protection. Our platforms are designed for real operational environments and are already trusted in the field.</p><p>We develop, manufacture, and integrate mobile autonomous surveillance systems, unmanned surface vessels, and counter-UAS solutions, all connected through AI-powered command-and-control.</p><p>With a talented team of 70+ people, DefSecIntel is headquartered in Tallinn, Estonia, with additional manufacturing and maintenance capabilities in Ukraine.</p><p>We work closely with leading international partners including the EU and NATO, and contribute to major defence R&amp;D programmes such as the European Defence Fund.</p><p>Join us to build mission-ready systems for today’s needs and tomorrow’s challenges, and help shape the future of Europe’s security.<br><br><span>We are looking for a Senior Software Engineer who is excited to build mission-critical robotics software that powers real-world autonomous systems and helps shape the future of defence technology.</span></p><p><strong>What you will be doing</strong>:</p><ul><li><p><span>Design, develop, and improve robotics software using Python, ROS, and C++ where needed</span></p></li><li><p><span>Build software for autonomous systems by integrating sensors, radar technologies, and data processing pipelines</span></p></li><li><p><span>Develop automated tests and validate software in both simulation and on physical hardware</span></p></li><li><p><span>Troubleshoot, optimise, and improve system performance, reliability, and stability</span></p></li><li><p><span>Build and maintain Docker-based development environments and CI/CD pipelines</span></p></li><li><p><span>Collaborate with hardware, software, and product teams to deliver robust, production-ready solutions</span></p></li><li><p><span>Contribute to software architecture, code reviews, and engineering best practices.</span></p></li></ul><p></p><p><strong>What we are looking for:</strong></p><ul><li><p><span>Strong Python development experience</span></p></li><li><p><span>Hands-on experience with Docker and CI/CD pipelines</span></p></li><li><p><span>Previous experience with data-driven development</span></p></li><li><p><span>Solid understanding of software engineering best practices, testing, and version control</span></p></li><li><p><span>Experience with C++ is a plus</span></p></li><li><p><span>Familiarity with ROS (Robot Operating System) is an advantage</span></p></li><li><p><span>Experience working with sensors, radar, IMUs, or other robotics technologies is a bonus</span></p></li><li><p><span>A curious, collaborative engineer who enjoys solving complex technical challenges and building software that performs reliably in real-world environments</span></p></li></ul><p></p><p><strong>What we offer</strong>:</p><ul><li><p>Meaningful work that supports our mission to create a safer and more secure world</p></li><li><p>The opportunity to work with a talented team and contribute to the development of innovative technologies and solutions</p></li><li><p>Flexibility in how and where you work, depending on role and project needs</p></li><li><p>Opportunities for professional growth and skills development as the company and projects evolve</p></li><li><p>Recognition for helping grow the team through employee referrals</p></li><li><p>A focus on employee well-being, including access to health- and sports-related benefits</p></li><li><p>Social activities and team events that strengthen collaboration and team spirit</p></li></ul>