Senior Java Back End Developer in Belfast

Senior Java Back End Developer in Belfast

Belfast Full-Time 60000 - 80000 £ / year (est.) Working from home possible
Ocho

At a Glance

  • Tasks: Design and build scalable Node.js backend services for high-traffic digital commerce.
  • Company: Established product engineering organisation known for cloud-native digital commerce platforms.
  • Benefits: Fully remote role, competitive salary, and involvement in architectural decision-making.
  • Other info: Opportunity to work with leading retail brands and grow your engineering craft.
  • Why this job: Join a collaborative team and work on technically challenging projects that make an impact.
  • Qualifications: Strong Node.js skills, experience with RESTful APIs, and a collaborative mindset.

The predicted salary is between 60000 - 80000 £ per year.

This role sits with a well-established product engineering organisation headquartered in Northern Ireland, with a reputation built on delivering composable, cloud-native digital commerce platforms for some of the world's best-known retail and consumer brands. Their engineering teams work across the full stack but with a particular focus on API-first, MACH-architecture systems - combining best-in-class headless commerce technology with strong Node.js and TypeScript engineering at the backend. They partner closely with their technology vendors and work on complex, multi-market platforms where engineering quality and system reliability genuinely matter.

This is a backend-focused senior engineering role. You will be working within a product engineering team building and maintaining the server-side systems that power high-traffic digital commerce experiences - APIs, integrations, data pipelines, and the backend logic that sits behind omnichannel customer journeys. This is not a maintenance role - the team is actively building and scaling.

What You'll Work On

  • Designing and building scalable Node.js backend services and APIs in a cloud-native, microservices environment
  • Integrating with headless commerce platforms, content systems, and third-party data providers via REST and GraphQL APIs
  • Building and maintaining event-driven pipelines that support real-time commerce operations across multiple markets
  • Working closely with frontend, architecture, and DevOps teams to deliver end-to-end features
  • Contributing to technical design, code review, and engineering standards within the team
  • Supporting cloud infrastructure decisions on AWS, Azure, or GCP as they relate to backend services

What We're Looking For

  • Strong, production-grade Node.js engineering - you write clean, testable, well-structured TypeScript
  • Solid experience building and consuming RESTful and GraphQL APIs at scale
  • Familiarity with microservices architecture and event-driven system design
  • Experience with relational and/or NoSQL databases - PostgreSQL, MongoDB, Redis, or similar
  • Comfortable working in a CI/CD environment with a strong DevOps culture
  • Cloud experience on at least one major provider - AWS, Azure, or GCP
  • A collaborative, ownership-oriented mindset - you see things through and communicate well

Nice to Have

  • Experience in the digital commerce or retail technology space
  • Familiarity with MACH architecture principles and composable commerce platforms
  • Exposure to headless CMS or commerce tooling - Contentful, Commercetools, Algolia, or similar
  • Experience working within an agency or consultancy environment alongside client engineering teams
  • Java or Python experience alongside Node.js

What's on Offer

  • Fully remote role, open to candidates anywhere in the UK
  • Competitive salary commensurate with senior-level experience
  • Work on high-profile, technically challenging digital commerce platforms
  • A collaborative engineering culture with genuine focus on quality and craft
  • Involvement in architectural decision-making from day one

Senior Java Back End Developer in Belfast employer: Ocho

Join a leading product engineering organisation based in Northern Ireland, renowned for its innovative cloud-native digital commerce solutions. As a Senior Java Back End Developer, you'll thrive in a fully remote role that champions a collaborative culture, prioritises quality, and offers significant opportunities for professional growth while working on high-profile projects that shape the future of retail technology.

Ocho

Contact Details:

Ocho Recruitment Team

StudySmarter Expert Advice🤫

We think this is how you could land Senior Java Back End Developer in Belfast

Tip Number 1

Network like a pro! Reach out to your connections in the tech industry, especially those who work with Node.js or in digital commerce. A friendly chat can lead to referrals or insider info about job openings.

Tip Number 2

Show off your skills! Create a portfolio showcasing your best Node.js projects, APIs, and any cool integrations you've built. This gives potential employers a taste of what you can do beyond your CV.

Tip Number 3

Prepare for interviews by brushing up on common backend questions and coding challenges. Practice explaining your thought process while solving problems, as communication is key in collaborative environments.

Tip Number 4

Don't forget to apply through our website! We love seeing candidates who are genuinely interested in joining our team. Plus, it makes it easier for us to keep track of your application.

We think you need these skills to ace Senior Java Back End Developer in Belfast

Node.js
TypeScript
RESTful APIs
GraphQL APIs
Microservices Architecture
Event-Driven System Design
Relational Databases

Some tips for your application 🫡

Tailor Your CV:Make sure your CV reflects the skills and experiences that match the job description. Highlight your Node.js and TypeScript expertise, as well as any experience with RESTful and GraphQL APIs. We want to see how you can contribute to our team!

Craft a Compelling Cover Letter:Your cover letter is your chance to shine! Use it to explain why you're passionate about backend development and how your previous experiences align with our needs. Show us your enthusiasm for building scalable systems and working in a collaborative environment.

Showcase Your Projects:If you've worked on relevant projects, whether personal or professional, make sure to mention them. We love seeing real-world applications of your skills, especially in cloud-native environments or with microservices architecture. It gives us a glimpse of what you can bring to the table!

Apply Through Our Website:We encourage you to apply directly through our website. It’s the best way to ensure your application gets into the right hands. Plus, it shows us you're serious about joining our team at StudySmarter!

How to prepare for a job interview at Ocho

Know Your Tech Stack

Make sure you’re well-versed in Node.js and TypeScript, as these are crucial for the role. Brush up on your experience with RESTful and GraphQL APIs, and be ready to discuss how you've built and consumed them at scale.

Showcase Your Problem-Solving Skills

Prepare to share specific examples of how you've tackled complex engineering challenges. Think about times when you designed scalable backend services or integrated with third-party data providers, and be ready to explain your thought process.

Understand the Company’s Focus

Familiarise yourself with the company’s work in digital commerce and MACH architecture. Being able to discuss how your skills align with their focus on high-quality, cloud-native solutions will show that you’re genuinely interested in the role.

Emphasise Collaboration

This role requires a collaborative mindset, so be prepared to talk about your experiences working with cross-functional teams. Highlight any instances where you’ve contributed to technical design or code reviews, and how you’ve communicated effectively with frontend and DevOps teams.