Junior Software Engineer jobs in United Kingdom

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.

• Strong proficiency in C#, with experience developing robust, high‑performance applications.
• Background in C++, with a solid understanding of 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.

SRT Marine Systems plc (SRT) is a market leader in international marine surveillance technology and systems. We are respected, established and an ambitious multinational company headquartered in the UK with a global customer base.

Location: 1 day / week in Cardiff office. Job Type: Full‑Time, Permanent. 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.

• 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.

• 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