Contract Senior C#/React Engineer

We’re looking for an experienced C#/ React Contract Engineer to join as a key member to one of our cross-functional product development teams as we build and scale our SaaS platform using the Microsoft stack.

This is an opportunity to utilise your breadth and depth of engineering knowledge and expertise to make a real impact within our Tech4Good product environment.

You’ll bring a passion and bias for action for solving complex design challenges and the know-how to balance simplicity and flexibility with performance and scalability.

You’ll actively champion high standards and be a role model within your team. Empowered to introduce new ideas, encourage experimentation and act as an SME to others. With proven experience of promoting good agile practices, you’ll support our Tech Lead in fostering rapid, high-quality engineering that ensures quality is baked in.

Working closely with product managers, the Tech Lead, and others in refinement sessions, you’ll help to guide the shape of the technical approach, breaking down work effectively and accelerate delivery.

This is a contract opportunity where you’ll make a genuine difference by delivering key product innovation and helping to cultivate a culture of learning, openly sharing knowledge that resonates and inspires others and contribute to creating a first-class developer experience for everyone.

If you enjoy thrashing out the best technical solutions, with other like-minded technologists, get a kick out of sharing your expertise along the way and want a contract where you’ll have a real voice to influence tooling and technical decisions then this contract role is for you!

What We Are Looking For

Technical

• In-depth software development experience, ideally across multiple stacks with a proven background in modern C#/.NET environments.
• Skilled in front-end development using modern frameworks, ideally React.
• Leads by example to instil a strong focus on building high-quality, well-tested solutions through unit testing, automated coverage, and continuous integration.
• Actively participates in code reviews, architecture decision-making, and hands-on development.
• Experience of designing and developing APIs.
• Solid understanding of non-functional considerations such as security, performance and scalability.
• In-depth knowledge of relational databases, especially SQL Server.
• Experienced in building and maintaining cloud-hosted systems and pipelines is beneficial, especially in Azure Environments
• Passionate problem-solver with a focus on process improvement and automation.
• Demonstrates a strong work ethic, pragmatism, and a high sense of responsibility.

Leading By Example

• Proactive and passionate about mentoring and developing engineers.
• Excellent understanding of agile principles, with a focus on championing the adoption of Agile ways of working in teams.
• Proactively identifies and removes delivery blockers, driving continuous improvement in team workflows.
• Champions lean, iterative delivery – delivering small, fast, and high value increments.
• Fosters a positive, inclusive, and high-trust team culture.
• Encourages collaboration, continuous learning, and a shared sense of ownership.
• Drives high standards of code quality, test coverage, and secure development practices.

Cross Collaboration

• A thoughtful listener who seeks diverse viewpoints and constructively challenges assumptions.
• A positive approach to seeking and responding to constructive feedback
• Excellent communication skills.
• Work closely with your Product Manager and other team members to estimate effort, refine work, and prioritise effectively.
• Partners with Tech Lead to help shape scalable, maintainable solutions.
• Collaborates with QA, DevOps, and Security to ensure end-to-end quality.