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Systematic - IT Solutions for critical decision making in demanding situationsSystematic - IT Solutions for critical decision making in demanding situations

Full Stack Senior Developer (Java, C++, or C#) - Drive Global Impact! 



Empower Your Career with a Leading Software Company 
Join our leading software company as a Full Stack Senior Systems Engineer, where you'll lead feature development, provide design expertise, mentor developers, and be part of a strong team. Work with our IRIS suite, an interoperability suite that is crucial in modern Defence missions. Trusted by NATO nations, IRIS offers flexible and adaptable off-the-shelf software solutions. Empower your career and shape the future of military communication with us.


Get to Know Our Talented Team
Join our team of skilled professionals, including a project manager, an architect, a scrum master, and talented developers and testers. Our development team consists of developers with varied seniority based in Bucharest, Denmark, and the UK. This diverse blend of expertise and cultural backgrounds fosters a rich pool of knowledge and experience, enabling us to consistently deliver outstanding results. 


Your Daily Impact as a Senior Developer 

  • Design and Craft Innovative Solutions: Drive the design process to create solutions for new features, ensuring alignment with project objectives and requirements. 
  • Maintain and Enhance Codebase: Take ownership of the existing codebase, ensuring its stability, reliability, and scalability. Continuously enhance and optimize the code to improve performance and maintain code integrity. 
  • Develop and Implement New Features: Utilize your expertise to develop and implement new features within the defined project scope and budget. Ensure high-quality deliverables adhere to coding standards. 
  • Mentor Less Experienced Developers: Guide and mentor junior team members, sharing knowledge and best practices. Provide support and help them grow professionally. 
  • Collaborate with Cross-functional Teams: Foster effective collaboration with project managers, testers, architects, and stakeholders. Ensure smooth project execution by actively participating in discussions and providing technical insights. 


Are You the Ideal Candidate? 

  • Relevant Technical Education: Hold a relevant technical education equipping you with the necessary knowledge and skills. 
  • Minimum of 5 Years of Experience: Possess a minimum of 5 years of experience as a Full Stack Systems Engineer or in a related role, demonstrating proficiency and expertise. 
  • Programmatically Proficient: The language you code in daily is not that relevant as you understand how to solve problems programmatically using an OOP language, then the rest is just syntax. 
  • Strong Problem-Solving and Analytical Skills: Excel at solving complex problems, utilizing analytical skills to identify optimal solutions.
  • Experience with Designing Solutions and Documenting Technical Processes: Previous experience in designing solutions and documenting technical processes, showcasing strategic thinking and effective communication. 
  • Familiarity with Object-Oriented Programming (OOP) Concepts: Solid understanding of Object-Oriented Programming (OOP) concepts, enabling the development of robust and scalable applications. 
  • Fluent in English, with Excellent Communication Skills: Fluent in English, both written and spoken, facilitating effective communication and collaboration. 


We work with security-classified projects and therefore, as a Systematic employee, you must have a clean criminal record and have lived in a NATO/EU country for the past seven years. Additionally, you must be able to obtain security clearance when working in our Defence Business Unit. Please read more here: 


Practical Details:

  • If you have any questions or need further information, feel free to reach out to us at +45 8943 2000 and ask for Søren Steen Jensen, Project Manager, Defence SitaWare IRIS Program. We're here to assist you.
  • We are actively reviewing applications and encourage you to apply without delay. Take the next step in your career by submitting your application today!


If you are ready to make a significant impact on defence systems, work with cutting-edge technologies, and be part of a cohesive team, apply now. Take the next step in your career and seize the opportunity to contribute to meaningful projects that shape the future of defence missions.


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Get in touch

Mette Mørch Rasmussen

Senior Talent Acquisition Consultant

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Aarhus C, DK

Department:  Defence Operations

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