API Software Engineer (mid-level) in Belfast
API Software Engineer (mid-level)

API Software Engineer (mid-level) in Belfast

Belfast Full-Time 36000 - 60000 £ / year (est.) Home office (partial)
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At a Glance

  • Tasks: Build and optimise REST APIs using C# .NET and Azure in a dynamic FinTech environment.
  • Company: Join a leading FinTech partner focused on AI innovation and growth.
  • Benefits: Enjoy hybrid work, competitive salary, and opportunities for professional development.
  • Why this job: Make an impact in the exciting world of AI and API development.
  • Qualifications: Strong C# .NET and SQL skills with experience in RESTful APIs.
  • Other info: Collaborate with engineering and AI teams in a supportive culture.

The predicted salary is between 36000 - 60000 £ per year.

We’ve just had some further roles go live with one of our Belfast based FinTech partners who are on a big AI-focused hiring drive for 2026. They’re hiring for a number of API development roles with this one coming in at mid-level on the team. It’s a hybrid role based in Belfast and further info on the requirements is below:

What You’ll Work On

  • Build production-grade REST APIs using C# .NET, SQL, Azure
  • Implement secure authentication (OAuth, JWT) and modern API security patterns
  • Create clean, well‑documented APIs using OpenAPI/Swagger
  • Optimise performance, logging, monitoring, and CI/CD pipelines
  • Partner with engineering and AI teams to expose scalable, consistent API capabilities

What You Bring

  • Strong C# .NET backend experience
  • Solid SQL and relational database skills
  • Experience building and maintaining RESTful APIs
  • Familiarity with OAuth/JWT, cloud deployments (Azure), and unit/integration testing

Bonus Skills

  • Azure API Management or API gateways
  • Event-driven patterns / messaging
  • Developer experience tooling or third‑party integration APIs

If this sounds like a fit, send across your CV or if you have further questions, contact Adam Whitehurst at Trust in Soda.

API Software Engineer (mid-level) in Belfast employer: Trust In SODA

Join a forward-thinking FinTech company in Belfast that prioritises innovation and employee development. With a strong focus on AI and a collaborative work culture, you'll have the opportunity to grow your skills while working on cutting-edge API projects. Enjoy a hybrid work model that promotes work-life balance and fosters a supportive environment for professional advancement.
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Contact Detail:

Trust In SODA Recruiting Team

StudySmarter Expert Advice 🤫

We think this is how you could land API Software Engineer (mid-level) in Belfast

✨Tip Number 1

Network like a pro! Reach out to folks in the FinTech space, especially those working with APIs. A friendly chat can lead to insider info about job openings or even a referral.

✨Tip Number 2

Show off your skills! Create a GitHub repository showcasing your API projects. This gives potential employers a taste of what you can do and makes you stand out from the crowd.

✨Tip Number 3

Prepare for technical interviews by brushing up on C# .NET and SQL. Practice coding challenges related to RESTful APIs and authentication methods like OAuth and JWT to impress your interviewers.

✨Tip Number 4

Don’t forget to apply through our website! It’s the best way to ensure your application gets seen. Plus, we’re always looking for talented individuals like you to join our team!

We think you need these skills to ace API Software Engineer (mid-level) in Belfast

C# .NET
SQL
RESTful API Development
OAuth
JWT
OpenAPI
Swagger
CI/CD Pipelines
Azure
Unit Testing
Integration Testing
Azure API Management
Event-driven Patterns
Messaging

Some tips for your application 🫡

Tailor Your CV: Make sure your CV highlights your experience with C# .NET and RESTful APIs. We want to see how your skills match the job description, so don’t be shy about showcasing relevant projects!

Showcase Your API Knowledge: When writing your application, mention any specific experience you have with OAuth, JWT, or Azure. We love seeing candidates who can demonstrate their understanding of modern API security patterns.

Keep It Clear and Concise: We appreciate a well-structured application! Use bullet points where possible and keep your descriptions clear. This helps us quickly see your qualifications and makes it easier for us to get to know you.

Apply Through Our Website: Don’t forget to apply through our website! It’s the best way for us to receive your application and ensures you’re considered for the role. Plus, we’re always excited to hear from potential new team members!

How to prepare for a job interview at Trust In SODA

✨Know Your APIs Inside Out

Make sure you brush up on your knowledge of RESTful APIs, especially those built with C# .NET. Be ready to discuss your past experiences in building and maintaining APIs, and think about specific examples where you implemented secure authentication methods like OAuth or JWT.

✨Show Off Your SQL Skills

Since solid SQL and relational database skills are key for this role, prepare to talk about your experience with databases. Have a couple of scenarios in mind where you optimised queries or improved database performance, as this will demonstrate your technical prowess.

✨Familiarise Yourself with Azure

As this position involves cloud deployments, it’s crucial to have a good grasp of Azure. Brush up on Azure API Management and any relevant tools you’ve used. Being able to discuss how you've leveraged Azure in previous projects will definitely give you an edge.

✨Prepare for Team Collaboration Questions

This role requires partnering with engineering and AI teams, so be ready to share examples of how you've successfully collaborated in the past. Think about challenges you faced and how you overcame them while working with cross-functional teams.

API Software Engineer (mid-level) in Belfast
Trust In SODA
Location: Belfast

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