Software Engineer - Platform

Who we are:

At DefSecIntel Solutions, we protect what matters by building systems that operate where failure is not an option.

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.

We develop, manufacture, and integrate mobile autonomous surveillance systems, unmanned surface vessels, and counter-UAS solutions, all connected through AI-powered command-and-control.

With a talented team of 70+ people, DefSecIntel is headquartered in Tallinn, Estonia, with additional manufacturing and maintenance capabilities in Ukraine.

We work closely with leading international partners including the EU and NATO, and contribute to major defence R&D programmes such as the European Defence Fund.

Join us to build mission-ready systems for today’s needs and tomorrow’s challenges, and help shape the future of Europe’s security.

We are looking for a 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.

What you will be doing:

• Develop robotics software in Python and C++ on ROS 2

• Build software for autonomous systems that integrates radar, cameras and other sensors with data processing pipelines

• Write automated tests and validate software both in simulation and on physical hardware

• Troubleshoot and improve system performance, reliability and stability in field conditions

• Take part in architecture decisions and code reviews

What we are looking for:

• Experience writing software that works with physical hardware, such as sensors, drones or robots

• Strong Python development experience

• Hands-on C++ development experience: you'll write and maintain C++ code, not just read it

• Comfortable working in Linux

• Solid grasp of testing and version control

Nice to have:

• ROS/ROS 2

• Embedded development: embedded Linux, ARM boards or microcontrollers

• Video streaming, e.g. GStreamer, RTSP

• Sensor fusion, tracking, or coordinate frames and transforms

• Docker and CI/CD

What we offer:

• Meaningful work that supports our mission to create a safer and more secure world

• The opportunity to work with a talented team and contribute to the development of innovative technologies and solutions

• Flexibility in how and where you work, depending on role and project needs

• Opportunities for professional growth and skills development as the company and projects evolve

• Recognition for helping grow the team through employee referrals

• A focus on employee well-being, including access to health- and sports-related benefits

• Social activities and team events that strengthen collaboration and team spirit