Senior Software Engineer (.Net)

Stratospherec Limited; Petworth; Hybrid; GBP 65,000 - 75,000; Full time

Benefits offered by this job

Birthday leave

Pension 5% employer contribution

Private health insurance

Enhanced sick pay

Death in service cover

Free parking

Job summary

Stratospherec Limited is recruiting a senior software engineer for its client, an award-winning software company delivering financial management systems to UK primary industries. Based in West Sussex, you will help migrate a desktop product to a cloud-native SaaS platform, shaping architecture, standards, and mentoring a dev team.

The role is hybrid with 2 days in the office, with easy access from Midhurst, Horsham, Crawley, Arundel, Worthing and Brighton, and near rail links.

Qualifications

• Extensive full-stack development using .NET/C#, TypeScript and Vue/React/Angular.
• +Prior responsibility for significant architectural decisions.
• +Experience with multi-tenant SaaS and cloud delivery on Azure, including containers and CI/CD.
• +Strong diagnostic and technical judgement.
• +Exposure to AI development tools and LLM-based features.

Responsibilities

• Lead technical decisions on multi-tenancy, data modelling and platform architecture.

Skills

Full-stack development

.NET/C#

TypeScript

Vue

React

Angular

Architectural decisions

Azure

Kubernetes

CI/CD

AI development tools

LLM features

Tools

Azure DevOps

PostgreSQL

Vue 3

Kubernetes

AI/ML tooling

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.