Senior Full Stack Developer .Net & React​/Typescript

Position: Senior Full Stack Developer .Net & React/Typescript
We are seeking an experienced Senior Full Stack Engineer to play a key role in the design, development, deployment and support of modern digital products and services. This is a hands-on senior engineering position that combines deep technical expertise with architectural leadership, mentoring and ownership of software delivery standards.

Working within a collaborative Agile environment, you will take responsibility for delivering scalable, secure and highly reliable solutions across both front-end and back-end technologies. You will drive engineering best practices, champion automation and quality, and help shape the technical direction of digital platforms and customer-facing applications.

This role offers the opportunity to influence architecture, improve engineering capability across the team and work closely with Product, Architecture, Security and Operations stakeholders to deliver high-quality software solutions.

Key Responsibilities

Software Development & Solution Delivery

Design, develop and maintain high-quality applications and services using React, Type Script and .NET/C#.
Take ownership of complex technical solutions from initial design through to deployment and operational support.
Deliver scalable, secure and maintainable code following modern engineering practices.
Lead technical investigations, proof-of-concepts and prototyping activities.
Own complex technical challenges and drive solutions across multiple systems and teams.
Ensure software is designed with performance, resilience and long-term maintainability in mind.

Architecture & Technical Leadership

Lead technical design discussions and contribute to strategic architectural decisions.
Define service boundaries, API contracts, integration patterns and data flows.
Promote modern software architecture principles, including modular design and domain-driven approaches.
Work closely with Architecture teams to ensure alignment with technology standards and long-term roadmaps.
Identify technical risks and recommend appropriate mitigation strategies.
Influence the future direction of digital products and engineering practices.

Engineering Quality & Testing

Champion a quality-first engineering culture.
Define and implement testing strategies across applications and services.
Promote Test-Driven Development (TDD) and automation-first approaches.
Drive improvements in automated testing, including:
Unit Testing
Integration Testing
API Testing
Contract Testing
End-to-End/UI Testing
Performance Testing
Ensure quality gates are embedded within deployment pipelines.
Continuously improve software reliability, maintainability and code quality standards.

Dev Ops & Cloud Engineering

Drive best practices across CI/CD pipelines and automated deployments.
Implement and improve release strategies including feature flags and progressive delivery techniques.
Ensure applications are built and deployed using secure and repeatable processes.
Support cloud-native development principles and modern Dev Ops practices.
Work within Azure-based environments and contribute to ongoing platform improvements.
Promote automation across build, test and deployment activities.

Operational Support & Reliability

Take ownership of the operational health of applications and services.
Implement and improve observability through logging, monitoring, metrics and tracing.
Lead incident investigation and resolution activities.
Conduct post-incident reviews and ensure lessons learned are embedded into future development.
Identify and resolve technical debt, defects and performance bottlenecks.
Participate in an agreed out-of-hours support rota where required.

Mentoring & Team Development

Provide technical leadership and support to engineers across the development team.
Mentor and coach developers to improve…