Senior Software Engineer (.Net)

Company: Stratospherec Limited
Apply for the Senior Software Engineer (.Net)
Location: Petworth
Job Description:

Stratospherec is recruiting a senior software engineer for its client who is an award-winning software company providing financial management systems to primary industry businesses across the UK.

The company based in West Sussex is migrating its established desktop product to a cloud-native SaaS platform so this exciting role combines hands‑on development with responsibility for architectural decisions, technical standards and mentoring, working in a collaborative environment amongst a talented team of developers.

This is a hybrid role with 2 days week in the office which is easilly accessible from the Midhurst, Horsham, Crawley, Arundel, Worthing and Brighton and close to rail networks and other public transport links.

Responsibilities

  • Lead technical decisions concerning multi-tenancy, data modelling and platform architecture.
  • Work with engineering, product and domain specialists to define appropriate solutions.
  • Mentor senior engineers and improve design, code review and delivery practices.
  • Investigate complex issues across application code, data and infrastructure.
  • Develop AI-supported product features and engineering processes.

Essential experience

  • Extensive full-stack development using .NET/C#, TypeScript and Vue, React or Angular to senior, lead or staff engineer level.
  • Previous responsibilty for significant architectural decisions.
  • Multi‑tenant SaaS and cloud delivery on Azure, including containers, Kubernetes and CI/CD.
  • Strong diagnostic skills and sound technical judgement.
  • Some practical experience of AI development tools and LLM-based features, including retrieval, semantic search or agents.
  • The ability to guide technical discussions and support colleagues.

The technology stack includes Vue 3, PostgreSQL, Azure DevOps and real‑time messaging.

This role offers a salary of 65K-75K alongside full professional development and a performance/profit-related annual bonus, subject to business results. Hybrid working with 2–3 office days per week, birthday leave, Christmas office closure, pension with 5% employer contribution after a qualifying period, private health insurance, enhanced sick pay, death-in-service cover and free parking.

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Posted: October 24th, 2026