Staff Software Developer (.Net)

Ocho

Belfast, Northern Ireland🌐 Remote💼 Full-time🗓 2026-06-26 → 2026-08-08

Core

Design and build scalable, high-availability backend systems and APIs while mentoring a team of engineers.

Role type

Staff Software Engineer (.NET)

Builds

Scalable backend systems and APIs for a high-volume transaction processing platform

Domain

Fintech / Payments

Deliverable

production ML models | product features | infrastructure

Required skills

.NET, C#, distributed systems, software architecture, Agile delivery, complex problem-solving, security compliance

Preferred skills

None stated

Technologies

.NET, C#

Responsibilities

Lead and mentor software engineers, design scalable backend systems, drive architectural decisions, own complex problem-solving, collaborate on roadmap features, support deployment pipelines, champion security standards

Seniority

Staff, hands-on IC with leadership

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About Ocho

Our client is a next generation payments technology company building the infrastructure that powers a merchant first ecosystem. They are a curious, driven and pragmatic team who believe in outcomes over outputs - focused, empowered engineers working on real problems for real merchants. Their platform is built on Java and the Spring framework, with Hibernate and Oracle for persistence, JAX-RS for REST APIs and JMS for asynchronous processing. It is a large, long-lived and actively modernised codebase, and the environment is deliberately designed to let engineers focus on technical challenges ra