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C# Developer Full Stack .Net Core JavaScript

Client Server· St Albans, England, United Kingdom· Up to £100,000/yr
Posted 17 Jun 2026Full Stack Developer
TS + React
Client ServerRecruitment agencyfounded 1999
Levels.fyi · global comp
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C# Developer / Full Stack Engineer (.Net Core JavaScript) St Albans / WFH to £100k

Are you an ambitious C# Developer looking to apply your technical skills in a fast paced environment where technology, data and sport intersect?

You could be progressing your career at a highly successful technology business that develops sophisticated platforms used to analyse and trade global sports markets. You'll join a collaborative engineering team where your work will have a direct impact on business performance, while giving you exposure to large-scale distributed systems, real-time data and modern cloud technologies.

As a C# Developer you'll design and build new features across a complex microservices ecosystem, working on business critical platforms that process large volumes of transactions and data. You'll contribute across both backend and frontend development, using modern technologies including C#/.NET, JavaScript, TypeScript, AWS, Kubernetes, Kafka and React or Angular.

WFH Policy:

You'll join colleagues in St. Albans, Hertfordshire (parking available), 10 minute walk from local station, with the flexibility to work from home twice a week in a hybrid model.

About you:

You have strong C# .Net Core backend development skills

You have JavaScript experience, combined with Angular or React

You have experience with AWS and microservices

You have a thorough understanding of Computer Science fundamentals such as OOP, Design Patterns, Data Structures, Algorithms

You enjoy collaborating, learning new things and sharing knowledge

You are degree educated in Computer Science or closely related discipline

What's in it for you:

As a C# Developer / Full Stack Engineer you will earn a competitive package:

Salary to £100k

Bonus

25 days holiday, rising to 30 after 2 years

Enhanced parental leave

Contributory pension scheme

Private Medical

MSDN subscription

Discounts for gym membership, travel and cinema

Sabbatical after 10 years of service

Flexible working with 2 days work from home per week

Apply now to find out more about this C# Developer / Full Stack Engineer (C# .Net Core JavaScript) opportunity.