Principal Backend Engineer in Belfast
Principal Backend Engineer

Principal Backend Engineer in Belfast

Belfast Full-Time 48000 - 72000 Β£ / year (est.) Home office possible
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At a Glance

  • Tasks: Design and develop backend services in Python for large scale operations.
  • Company: Join a growing product-led engineering organisation focused on high throughput systems.
  • Benefits: Enjoy a straightforward interview process and the chance to own your work.
  • Why this job: Tackle meaningful backend challenges that impact system reliability and user experience.
  • Qualifications: Strong Python experience and knowledge of API design and distributed systems.
  • Other info: Collaborative team environment with opportunities for learning and growth.

The predicted salary is between 48000 - 72000 Β£ per year.

Backend Software Engineer Python

Location: UK Remote

Engagement: Permanent

Interview Process: Single stage technical interview

The Opportunity

OCHO is partnering with a growing product led engineering organisation building high throughput systems that sit at the core of real world field operations. This role is ideal for backend engineers who enjoy working deeply in Python and care about system design, data flow, and performance. You will help design and evolve backend services where reliability, scalability, and operational clarity matter. The team values clean architecture, thoughtful problem solving, and engineers who want real ownership over how systems are built and improved.

What You Will Be Doing

  • Design and develop backend services in Python to support large scale operational workflows.
  • Work closely with product teams to break down complex requirements and shape technical solutions.
  • Build and maintain well structured APIs, data pipelines, and service integrations.
  • Contribute to architectural decisions and the ongoing evolution of the backend platform.
  • Improve system reliability through observability, automated testing, and performance optimisation.
  • Collaborate with frontend, mobile, and data teams as part of a cross functional product group.

What You Will Bring

  • Strong professional experience building backend systems using Python.
  • Experience with modern Python frameworks such as FastAPI, Flask, or Django.
  • A solid understanding of API design, data modelling, and distributed systems.
  • Experience working with relational databases and optimising query performance.
  • Ability to reason about system behaviour under real operational load.
  • Confidence contributing to code reviews, system design discussions, and technical direction.
  • A mindset focused on craftsmanship, clarity, and ownership.

Why This Role

This is an opportunity to work on meaningful Python backend challenges where your design decisions directly affect system reliability and user experience. You will join a team that values good engineering, encourages learning, and trusts engineers to own their work. The interview process is intentionally straightforward. A single technical interview focused on system design and practical problem solving.

Interested? For a confidential conversation, reach out directly to Ryan Quinn on LinkedIn.

Skills: Python, Java, AWS, Event Driven, Cloud Native

Principal Backend Engineer in Belfast employer: Ocho

OCHO is an exceptional employer for backend engineers, offering a remote working environment that fosters innovation and collaboration. With a strong emphasis on clean architecture and thoughtful problem-solving, employees are encouraged to take ownership of their work while benefiting from a culture that prioritises learning and professional growth. The opportunity to engage in meaningful projects that directly impact system reliability and user experience makes OCHO a rewarding place to advance your career.
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Contact Detail:

Ocho Recruiting Team

StudySmarter Expert Advice 🀫

We think this is how you could land Principal Backend Engineer in Belfast

✨Tip Number 1

Network like a pro! Reach out to folks in the industry, especially those already working at OCHO or similar companies. A friendly chat can give you insider info and maybe even a referral!

✨Tip Number 2

Show off your skills! Create a GitHub repo with some of your best Python projects. This is a great way to demonstrate your backend prowess and system design skills without just relying on your CV.

✨Tip Number 3

Prepare for that technical interview! Brush up on system design principles and be ready to discuss your thought process. Practising with mock interviews can really help you nail it.

✨Tip Number 4

Apply through our website! It’s the best way to ensure your application gets seen by the right people. Plus, we love seeing candidates who take that extra step to connect directly with us.

We think you need these skills to ace Principal Backend Engineer in Belfast

Python
FastAPI
Flask
Django
API Design
Data Modelling
Distributed Systems
Relational Databases
Query Performance Optimisation
System Design
Observability
Automated Testing
Performance Optimisation
Cross-Functional Collaboration
Problem Solving

Some tips for your application 🫑

Tailor Your CV: Make sure your CV highlights your experience with Python and backend systems. We want to see how you've tackled challenges similar to those in the job description, so don’t hold back on showcasing your skills!

Craft a Compelling Cover Letter: Your cover letter is your chance to shine! Use it to explain why you're passionate about backend engineering and how your experience aligns with our values of craftsmanship and ownership. Keep it concise but impactful!

Showcase Your Projects: If you’ve worked on any relevant projects, make sure to mention them! Whether it's a personal project or something from your previous job, we love seeing real-world applications of your skills, especially in Python frameworks like FastAPI or Django.

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’re considered for the role. Plus, it makes the whole process smoother for everyone involved!

How to prepare for a job interview at Ocho

✨Know Your Python Inside Out

Make sure you brush up on your Python skills, especially with frameworks like FastAPI, Flask, or Django. Be ready to discuss how you've used these in past projects and be prepared to solve coding challenges on the spot.

✨Understand System Design Principles

Since the role focuses on system design, take some time to review key concepts like API design, data modelling, and distributed systems. Think about how you would approach designing a scalable backend service and be ready to share your thought process during the interview.

✨Prepare for Real-World Scenarios

Expect questions that assess your ability to reason about system behaviour under load. Prepare examples from your experience where you improved system reliability or optimised performance, and be ready to discuss the impact of your decisions.

✨Show Your Collaborative Spirit

This role involves working closely with cross-functional teams, so be prepared to talk about your experiences collaborating with frontend, mobile, and data teams. Highlight any successful projects where teamwork played a crucial role in achieving your goals.

Principal Backend Engineer in Belfast
Ocho
Location: Belfast
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  • Principal Backend Engineer in Belfast

    Belfast
    Full-Time
    48000 - 72000 Β£ / year (est.)
  • O

    Ocho

    100-200
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