Full Stack Mid-level .NET Developer

About the Role

We're looking for a Full Stack .NET Developer to join our growing Development team at StoneShot. This is a great opportunity for a mid-level developer who wants to take ownership of features, contribute to technical decisions, and build high-quality applications used by leading financial services brands.

You'll be working across the full stack, helping to design and deliver secure, scalable, and user-friendly digital products. You'll collaborate closely with developers, designers, and stakeholders, playing a key role in shaping what we build and how we build it. You’ll also have the opportunity to work with modern AI-assisted and agentic approaches within the software development lifecycle as part of our evolving engineering practices.

What You'll Be Doing

• Designing, building, and maintaining full-stack solutions


• Developing new features from concept through to delivery


• Writing clean, maintainable, and scalable code


• Collaborating with cross-functional teams to deliver high-quality solutions


• Troubleshooting and optimising existing systems


• Participating in code reviews and supporting junior developers where appropriate

Tech & Skills (Essential)

• ~4+ years' experience in software development


• Strong experience with C# and .NET (MVC / .NET)


• Experience working with SQL Server and relational databases


• Solid understanding of HTML, CSS, and modern web development practices


• Strong grasp of object-oriented programming principles


• Problem-solving mindset and attention to detail

Nice to Have

• Commercial experience using agentic AI or AI-assisted tooling within the software development lifecycle


• Experience with Entity Framework or similar ORM tools


• Exposure to JavaScript frameworks


• Familiarity with Azure / Azure DevOps / CI/CD pipelines


• Experience working with or modernising legacy systems


• Understanding of performance optimisation and scalable architecture

What You'll Get

• Competitive salary based on experience


• 22 days holiday + bank holidays, increasing with service


• Additional time off over Christmas and New Year


• Remote-first working (with occasional office time)


• Pension scheme and wellbeing support (including eye care)


• Ongoing training and development opportunities

Location

Remote (UK-based) with occasional travel to Stevenage, Hertfordshire.

Eligibility

Applicants must have the right to work in the UK (we are unable to offer sponsorship for this role).

StoneShot is an equal opportunities employer. We are committed to creating an inclusive environment and welcome applications from all suitably qualified individuals.

About StoneShot

StoneShot is a digital marketing technology and services provider specialising in financial services.

We help marketing teams at banks and financial institutions improve engagement, streamline operations, and deliver better client experiences. Our clients range from fast-growing boutique firms to global organisations including BNP Paribas, HSBC, and UBS.

Founded in London in 2001, we now operate globally with offices in London, New York, and Singapore, supporting clients in over 25 countries.