Senior Developer / Architect

Senior Developer / Architect

Full-Time 75000 - 90000 £ / year (est.) No home office possible
Youngs Employment Services

At a Glance

  • Tasks: Lead the migration of a booking system to Azure-native microservices and mentor mid-level developers.
  • Company: Join an innovative tech company in Central/West London with a hybrid work model.
  • Benefits: Enjoy a competitive salary, bonus, pension contributions, and flexible working options.
  • Other info: Perfect for those who thrive in small, flat-structured teams.
  • Why this job: Make a real impact in a collaborative environment while working with cutting-edge technologies.
  • Qualifications: Expertise in C#/.NET, React, React Native, and Azure required.

The predicted salary is between 75000 - 90000 £ per year.

An exciting opportunity for a hands-on Senior Developer eager to make a real impact with architectural skills and deep experience in C# / .Net, React, React Native, and Azure. Our client is launching a major initiative to bring development in-house, and you'll be a key player as they migrate a monolithic booking system to .Net 10 Azure-native microservices. The Senior Developer will mentor a small team of mid-level developers and be hands on writing C# production code, React web portals and the React Native mobile screens themselves. They'll be making pragmatic architectural decisions that keep delivery front and centre. It's a hybrid role with the flexibility to work from home on Mondays and Fridays.

Key Responsibilities include:

  • Implement complex C# microservices — Minimal APIs, Worker Services, DAPR integration, .NET Aspire orchestration
  • Build and own the React web portal — component architecture, TypeScript, React Query, state management
  • Lead React Native mobile development for the app — Expo / bare workflow, push notifications, offline sync
  • Design the anti-corruption layer translating legacy domain concepts into DDD aggregates
  • Make lightweight but durable architectural decisions (ADRs)
  • Mentor mid-level developers

Key Skills required:

  • C# / .NET 8 onwards at expert level — Minimal APIs, async patterns, Worker Services, EF Core, .NET Aspire
  • React / TypeScript — expert level; hooks, context, React Query, component libraries, portal development
  • React Native — production mobile app experience; Expo, offline-first patterns, platform-specific APIs
  • Azure cloud-native — AKS / Container Apps, Service Bus, API Management, Blob Storage, Azure DevOps
  • Microservices patterns — strangler fig, DAPR pub/sub, saga orchestration, transactional outbox
  • DDD fundamentals — bounded contexts, aggregates, domain events, CQRS
  • SQL Server — schema design, EF Core migrations, query performance tuning

This role is perfect for those who thrive in small, flat-structured teams and collaborative environments where every contribution makes a difference. Salary will reflect experience, with a likely range of £75,000 - £90,000, plus bonus, company pension contributions, and other benefits.

Senior Developer / Architect employer: Youngs Employment Services

Join a forward-thinking company in Central/West London that values innovation and collaboration, offering a hybrid work model that promotes work-life balance. As a Senior Developer/Architect, you'll not only lead the migration to cutting-edge technologies but also mentor a talented team, ensuring your contributions are recognised and impactful. With competitive salaries, bonuses, and a supportive culture focused on employee growth, this is an excellent opportunity for those looking to make a meaningful difference in their careers.
Youngs Employment Services

Contact Detail:

Youngs Employment Services Recruiting Team

StudySmarter Expert Advice 🤫

We think this is how you could land Senior Developer / Architect

✨Tip Number 1

Network like a pro! Reach out to your connections in the industry, attend meetups, and engage in online communities. You never know who might have the inside scoop on job openings or can refer you directly.

✨Tip Number 2

Show off your skills! Create a portfolio showcasing your projects, especially those involving C#, .NET, React, and Azure. This will give potential employers a taste of what you can do and set you apart from the crowd.

✨Tip Number 3

Prepare for interviews by brushing up on common technical questions related to microservices and architectural decisions. Practice coding challenges and be ready to discuss your past experiences in detail.

✨Tip Number 4

Don’t forget to apply through our website! We’ve got some fantastic opportunities waiting for you, and applying directly can sometimes give you an edge over other candidates.

We think you need these skills to ace Senior Developer / Architect

C#
.NET 8 onwards
Minimal APIs
Worker Services
EF Core
React
TypeScript
React Native
Expo
Azure cloud-native
AKS
Microservices patterns
DDD fundamentals
SQL Server
Query performance tuning

Some tips for your application 🫡

Tailor Your CV: Make sure your CV highlights your experience with C#, .NET, React, and Azure. We want to see how your skills align with the role, so don’t be shy about showcasing relevant projects or achievements!

Craft a Compelling Cover Letter: Your cover letter is your chance to shine! Use it to explain why you’re excited about this opportunity and how you can contribute to our team. Keep it concise but impactful – we love a good story!

Showcase Your Architectural Skills: Since this role involves making architectural decisions, be sure to mention any relevant experience you have in designing systems or mentoring others. We’re looking for someone who can lead and inspire!

Apply Through Our Website: We encourage you to apply directly through our website. It’s the best way for us to receive your application and ensures you don’t miss out on any important updates. Let’s get started on this journey together!

How to prepare for a job interview at Youngs Employment Services

✨Know Your Tech Stack Inside Out

Make sure you’re well-versed in C# / .NET, React, and Azure. Brush up on the latest features and best practices, especially around microservices and architectural decisions. Being able to discuss your experience with these technologies confidently will show that you're the right fit for the role.

✨Prepare Real-World Examples

Think of specific projects where you've implemented complex C# microservices or led a team in developing React applications. Be ready to share challenges you faced and how you overcame them. This will demonstrate your hands-on experience and problem-solving skills.

✨Showcase Your Mentoring Skills

Since mentoring mid-level developers is part of the job, be prepared to discuss your approach to mentoring. Share examples of how you've helped others grow in their roles, and what strategies you use to foster a collaborative environment.

✨Ask Insightful Questions

Prepare thoughtful questions about the company’s migration to .NET 10 and their architectural vision. This shows your genuine interest in the role and helps you assess if the company culture aligns with your values, especially in a hybrid work setting.

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