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Senior Software Engineer

Job in Belfast, County Antrim, BT1, Northern Ireland, UK
Listing for: Ocho
Full Time position
Listed on 2026-01-15
Job specializations:
  • Software Development
    Senior Developer, Software Engineer
Job Description & How to Apply Below

Ocho Belfast, Northern Ireland, United Kingdom

Senior Software Engineer

We’re working with a leading technology team in Belfast who are embarking on a major cloud upgrade programme, moving their large‑scale systems into AWS. They’re seeking a Senior Software Engineer to help drive this transformation while building out high‑quality, scalable solutions that serve both internal teams and external clients.

This is a hands‑on senior role where you’ll design and deliver solutions, mentor engineers, and play a key part in shaping best practice across a modern, cloud‑focused environment. You’ll be contributing to distributed systems, high‑performing backend services, and next‑generation platforms designed for scale.

What you’ll be doing
  • Partner with architects and senior stakeholders to design and deliver scalable, resilient systems.
  • Take ownership of technical delivery, from design through to deployment and support.
  • Mentor and guide engineers, helping to upskill the wider team.
  • Enhance tooling, CI/​CD pipelines, and development processes to improve delivery.
  • Identify risks and blockers early, ensuring progress across the engineering lifecycle.
What we’re looking for
  • Deep knowledge of .NET Core / modern .NET with C#.
  • Proven experience building APIs (REST or Graph

    QL).
  • Strong database background (SQL Server, MySQL, or similar) including optimisation.
  • Practical experience with cloud services – AWS, Azure, or GCP all considered.
  • Strong understanding of the full SDLC, from requirements through to production.
  • Experience with automated testing frameworks at scale.
  • Pragmatic, collaborative approach with the ability to influence technical decisions.
Nice to have
  • Experience building desktop apps with WPF.
  • Exposure to high‑throughput or real‑time systems.
  • Knowledge of microservices and/or serverless design patterns.
  • Experience applying TDD, BDD, or similar approaches.

Apply here or reach out to Aaron Somers at Ocho for more information via Linked In.

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Position Requirements
10+ Years work experience
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