Mid-Level Full Stack Developer (AWS, TypeScript + React)

We're looking for a Mid-Level Full Stack Developer to help build our new platform for financial compliance. You'll be part of a small, fast-moving team that's breaking away from consultancy-era processes and creating something new, modern, intelligent, user-centred software that transforms how firms meet their regulatory obligations.

You'll work across the stack, TypeScript on the backend, React on the frontend, AWS in the cloud, and get hands-on mentorship from engineers with big-tech backgrounds. It's a chance to level up fast while helping to rewrite the future of a legacy industry.

What You'll Do

• Build and ship new features end-to-end using TypeScript, React, and AWS services.

• Collaborate with product managers, designers, and compliance experts to turn complex regulation into simple, intuitive tools.

• Write clean, maintainable code and learn the craft of scalable system design.

• Contribute ideas that shape the architecture and technical direction of a brand-new product line.

• Grow your skills in modern engineering practices, from CI/CD to security-aware development.

Do you have experience in TypeScript?, * Around 2-3 years' experience building web applications.

• Proficiency in TypeScript/JavaScript and React.

• Some hands-on experience with AWS (Lambda, API Gateway, S3, DynamoDB, etc.).

• Curiosity, initiative, and a hunger to learn from senior engineers.

• Bonus: any experience in fintech, regtech, or compliance.

Pulled from the full job description

• Annual leave
• Company pension
• Private medical insurance
• Cycle to work scheme
• Company events
• Car scheme, * Private Medical Insurance and Health Cash Plan
• Unlimited one to one coaching with MoreHappi Coaching
• Employee Benefits Platform, including Cycle to Work Scheme and Sodexo Spree Card
• Tusker Electric Car Scheme
• Employee Assistance Programme (including counselling sessions)
• Pension Scheme
• Learning and development opportunities
• Volunteering, fundraising and fun company events

This is a full-time, permanent role worked Monday to Friday on a hybrid basis. There's flexibility to work fully remotely if preferred, with occasional office attendance when required by the business.

There is currently no deadline to apply, however, applications will be considered on a first come first serve basis and this opportunity will be closed once the right candidate has been found. We only accept applicant CVs from individuals who have the right to work in the UK.

Cosegic has been one of the UK's most trusted compliance consultancies for over two decades. Now we're doing something bold: building a startup inside a 22-year-old firm. We've got full support from the board and C-suite to reinvent the company from the inside out, a skunkworks team of engineers, product thinkers, and designers building a new generation of regtech products. This isn't innovation theatre. It's a funded, autonomous group that moves fast, experiments freely, and ships real software. Why Join Us? Because this isn't maintenance work, it's creation. You'll join the skunkworks team that's redefining what a 22-year-old consultancy can become. We have full executive backing, budget, and autonomy to move fast and build the tools that will define Cosegic's next chapter. You'll learn from people who've shipped at scale, work in a culture that values curiosity and ownership, and build software that makes compliance actually work for people, not against them. Come help us reinvent an industry from the inside.