Senior Full Stack Developer; C#/React/TypeScript
Listed on 2026-10-06
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Software Development
Full Stack Developer
At Mountain Warehouse we understand that technology is core to our success as a business and so we invest heavily in our in-house team. The development department is divided into product-based teams, all using variants on Kanban for project prioritisation and a focus on continuous delivery, mostly with usage of microservices.
We are a collaborative team with a strong culture of code review, occasional usage of pair programming and lots of unit tests. We’re keen to write code following best practice and to continuously find ways that we can be even better. The work is a mixture of green-field and legacy projects (much like any other mature organisation) mostly using C#, SQL Server, Next.js,
React & Type Script, with a combination of monolithic and microservices architectures.
We are looking for technically strong and organised senior developers to join our development teams, with positions available across the Web Development team, the team responsible for systems related to Customer Experience and Customer Service as well as our Buyers and Merchandising development team.
The applications are a mixture of internal services and public-facing applications, based on a range of tech stacks and across cloud, data centre, and modern edge/serverless environments.
A selection of what we’re using across the departmentLet us know what you have experience of; we can train in the rest.
- Microservices architecture.
- Docker, Kubernetes in Azure, Vercel.
- Jenkins / Bit Bucket Pipelines for CI/CD.
- RabbitMQ / Mass Transit.
- Microfront ends.
- Test Driven Development.
- RESTful API design.
- GraphQL APIs.
- Integrations with third-party APIs and SaaS platforms.
- Flexibility
- Remote-first with an office in central London if you need it.
- 10-4 core hours, 37.5 across the week.
- Part-time working or compressed 9-day fortnights.
- Options to work for long periods in Germany or Poland (via our EU companies)
- Learning
- Training budget after 1st year. Most regularly either the conference or workshop elements of NDC London or SDD but we’re open to whatever will suit you best.
- Two hackathon events a year.
- 10 days of dedicated time for self-improvement, spike tests, blog writing, etc.
- Work/life balance
- No mandatory overtime.
- Unpaid time off is negotiable.
- Sociability
- At least 4 in-person department/company events a year. Travel and accommodation are provided if you live outside London.
- Virtual department events.
- Team get togethers are encouraged.
- 50% off Mountain Warehouse, Animal and other brands in the group.
- Minimum 6 years of commercial experience of React/Type Script.
- Minimum 6 years of solid C# in a commercial environment.
- Minimum 6 years of SQL, EF Core experience (BMDev-specific).
- Produces initial results rapidly and iterate based upon feedback.
- Knowledge of microservice design principles - preferably with commercial experience.
- Experience with modern git workflows.
- Effective communicator and excellent communication skills.
- Makes pragmatic implementation decisions and can fail fast if an approach is not working.
- Understands projects and project goals in depth.
- Experience or willingness of mentoring junior members of a team.
- A strong desire to create high-quality, tested code.
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