Senior Software Developer (C#)

Join Us at SRT Marine Systems as a Senior Software Developer Job Title: Senior Software Developer (Edge Team) Location: 1 day / week in Cardiff office Job Type: Full-Time, Permanent SRT Marine Systems plc (SRT) are a market leader in its domain of international marine surveillance technology and systems. We are respected, established and an ambitious multi-national company headquartered in the UK with a global customer base. The Edge Team is responsible for developing the next-generation hardware and software platform that forms the outer layer (“edge”) of our wider Maritime Domain Awareness (MDA) system. This platform consolidates and analyses sensor data gathered from the maritime environment, enhancing the intelligence available to users at remote command and control centres.  Our systems operate at the intersection of edge computing, sensor fusion, AI-assisted analysis, and autonomous operation, delivering real-time maritime situational awareness and actionable intelligence.  SRT is an exciting company where high quality results are rewarded. We are ambitious and are constantly seeking to innovate to deliver better products and services to our customers. We strive to make SRT a rewarding and challenging place to work where talented hard-working individuals have the opportunity to make a real impact across the marine world. About The Role We are seeking a Senior C# Software Developer to help port and extend an existing proof-of-concept (PoC) system written in VB.NET. The system performs vessel detection and tracking by combining (“fusing”) AIS and radar data sources.  What You’ll Be Doing You will play a key role in transforming this PoC into a robust, scalable, production-grade edge platform—supporting multi-domain sensor fusion, AI-assisted anomaly detection, augmented reality visualization, autonomous “sentry” operations, and incident evidence capture.  What You’ll Bring

• Strong proficiency in C#, with experience developing robust, high-performance applications. 
• Background in C++, with a solid understanding of software fundamentals such as memory management, concurrency, and performance optimization. 
• Demonstrable experience in at least one of the following domains: 
• Sensor data processing (radar, AIS, optical, or RF) 
• Tracking systems or sensor fusion algorithms 
• Real-time or embedded systems 
• Understanding of networking protocols and data serialization (e.g., TCP/UDP, JSON, Protobuf). 
• Familiarity with multi-threaded and asynchronous programming patterns. 
• Ability to work effectively within an interdisciplinary engineering team. 

Our Values at SRT Marine Ambition – Aspiring to lead in maritime domain management. Innovation – Driving improvement through creativity and forward-thinking. Quality – Committing to high standards in performance and reliability. Responsibility – Being individually accountable and team-driven. Team – Collaborating openly with colleagues, partners, and customers. Why Join Us?

• Work on mission-critical maritime surveillance systems used worldwide.
• Be part of an ambitious, innovative, and supportive team.
• Make a direct impact on global maritime safety and sustainability.
• Enjoy flexible hybrid working.

Competitive Salary And Benefits, Including

• Matched pension contributions up to 5%
• 25 days annual leave (rising to 28 with service)
• Private health care
• Flexible working opportunities
• Development and training programmes

SRT Marine plc is an equal opportunity employer. We are committed to creating an inclusive environment for all employees and welcome applications from all backgrounds.