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Full stack c#/react developer

London
Teksystems
React developer
Posted: 20 October
Offer description

Location: London

Type: Full-time

We’re partnered with a rapidly scaling FinTech company that provides global payment and treasury solutions to the insurance sector. Backed by significant funding and trusted by major industry players, they’re building cutting-edge technology to deliver fast, secure, and transparent payment experiences worldwide.

The Role

This is not just a coding role. You’ll be deeply involved in the product development lifecycle, working closely with product managers, designers, and engineers to shape what gets built, why it matters, and how it delivers value. You’ll own features end-to-end—from architecture through to deployment and monitoring—while ensuring quality, scalability, and maintainability.

What You’ll Do

Design, develop, and deploy enterprise-grade software solutions.
Collaborate in Agile sprints, contributing to planning, releases, and continuous improvement.
Work with modern architectural patterns such as CQRS and Clean Architecture.
Drive initiatives from ambiguous requirements to measurable impact, ensuring alignment with customer value.
Stay curious and engaged with emerging technologies, including AI.

What We’re Looking For

Strong experience with C# and .NET Core (approx. 80% of the role).
Solid knowledge of React and front-end development (approx. 20% of the role).
Proven track record of working in Agile environments with close product collaboration.
Familiarity with modern design patterns (CQRS, Clean Architecture, DDD).
Ability to take ownership and deliver features that make a real difference.
If you’re passionate about building impactful products and want to work in a collaborative, forward-thinking environment, we’d love to hear from you.

Location

London, UK

Rate/Salary

(phone number removed) - (phone number removed) GBP Yearly

Trading as TEKsystems. Allegis Group Limited, Maxis 2, Western Road, Bracknell, RG12 1RT, United Kingdom. No. (phone number removed). Allegis Group Limited operates as an Employment Business and Employment Agency as set out in the Conduct of Employment Agencies and Employment Businesses Regulations 2003. TEKsystems is a company within the Allegis Group network of companies (collectively referred to as "Allegis Group"). Aerotek, Aston Carter, EASi, Talentis Solutions, TEKsystems, Stamford Consultants and The Stamford Group are Allegis Group brands. If you apply, your personal data will be processed as described in the Allegis Group Online Privacy Notice available at (url removed)>
To access our Online Privacy Notice, which explains what information we may collect, use, share, and store about you, and describes your rights and choices about this, please go to (url removed)>
We are part of a global network of companies and as a result, the personal data you provide will be shared within Allegis Group and transferred and processed outside the UK, Switzerland and European Economic Area subject to the protections described in the Allegis Group Online Privacy Notice. We store personal data in the UK, EEA, Switzerland and the USA. If you would like to exercise your privacy rights, please visit the "Contacting Us" section of our Online Privacy Notice at (url removed)/en-gb/privacy-notices for details on how to contact us. To protect your privacy and security, we may take steps to verify your identity, such as a password and user ID if there is an account associated with your request, or identifying information such as your address or date of birth, before proceeding with your request. If you are resident in the UK, EEA or Switzerland, we will process any access request you make in accordance with our commitments under the UK Data Protection Act, EU-U.S. Privacy Shield or the Swiss-U.S. Privacy Shield

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