Senior Unity​/C# Developer

Senior Unity / C# Developer at SRT Marine Systems plc

Job Title:

Senior Unity / C# Developer – Chart Screen (Maritime Domain Awareness)

Location:

Cardiff (Hybrid) – On-site every Thursday, remote for remaining days

We build a Maritime Domain Awareness (MDA) system, used by customers to monitor and track vessels across their maritime area of interest. Our product combines a high‑performance map and tracking display with powerful data, alerting, and configuration tools.

• Chart Screen (CS). A real‑time Unity/C# map view displaying vessels and other layers over a client’s area of interest.
• Data Screen (DS). An Angular web app for alerts, configuration and other CRUD operations, hosted inside the Unity client via a web‑browser plugin.

We’re now looking for a Senior Unity / C# Developer to contribute to the development of the Chart Screen, alongside two other CS devs.

You will be one of three engineers responsible for the Chart Screen, building and evolving the Unity/C# application that renders our maritime map, vessel tracks and overlays. You’ll work closely with product, UX, the DS/web devs and also the backend devs to deliver a smooth, integrated two‑screen experience, with a strong focus on performance, usability, and reliability in a real‑time operational setting.

This role is ideal for someone who enjoys working on complex visual applications rather than simple business forms.

On‑site requirement:
You must be able to commute to our Cardiff office every Thursday (team day). The rest of the week can be remote/hybrid.

• Jointly own the Chart Screen Unity client
  • Design, implement, and maintain the Unity/C# client responsible for map rendering, vessel visualisation, and user interaction.
  • Evolve the client architecture for usability, scalability, maintainability, and testability.
• Real‑time map & visualisation
  • Implement performant 2D/3D map views, layers and overlays (vessels, tracks, areas, alerts).
  • Handle high update rates and large numbers of objects while keeping frame rates smooth.
  • Implement intuitive interaction patterns: zoom/pan, selection, context menus, filtering, etc.
• Integration with Data Screen (Angular web app)
  • Work with the Unity web‑browser plugin to host the Angular DS within the Unity application.
  • Design and maintain robust integration patterns between CS and DS (messaging, events, shared state).
  • Collaborate with web engineers to ensure a cohesive user experience across both screens.
• Backend & data integration
  • Consume APIs and data feeds to display vessel positions, metadata, and alerts.
  • Handle network connectivity, reconnection, error reporting and graceful degradation.
• Quality, performance, and reliability
  • Profile and optimise rendering and update loops (“hot” paths) for performance.
  • Introduce and maintain automated tests where appropriate (unit, integration).
  • Contribute to logging, diagnostics and error handling standards on the client.
• Technical leadership & collaboration
  • Mentor mid‑level and junior developers on Unity and C# best practices.
  • Work with product and UX to refine requirements into technical designs.
  • Participate in code reviews, architecture discussions, and release planning.

• Strong experience with:
  • Solid understanding of OOP, generics, async/await, events, interfaces.
  • Writing clean, maintainable, testable code.
• Strong experience with Unity in a professional setting:
  • UI systems (UGUI/UI Toolkit), scene & asset management.
  • Scripting, update cycles, coroutines, input handling.
  • Performance optimisation (profilers, batching, garbage reduction).
• Experience building real‑time, data‑driven visual applications – e.g. games, simulation, mapping, or monitoring dashboards.
• Comfortable integrating with RESTful APIs and handling JSON/HTTP in C#.
• Experience working with Git and modern development workflows (branches, PRs, CI/CD awareness).

• Ability to design clean, modular application structures (e.g. MVVM/MVC, dependency injection, event‑driven architectures).
• Understanding of separation of concerns between visualisation, domain logic, and data access.
• Experience designing and…