Staff Software Engineer - C# / .NET
At a Glance
- Staff-level engineering role on a large-scale transaction platform
- C# / .NET, APIs, SQL Server, CI/CD environment
- Remote-first with Belfast city centre office
- Salary £65k-£70k + strong wider package
- Opportunity to influence architecture and engineering direction at scale
The Company
Ocho has exclusively partnered with a global technology organisation currently investing heavily in its Belfast engineering function.
Operating at significant international scale, this business builds and owns high-volume platforms that process millions of real-time transactions every day. Their technology sits at the centre of critical digital infrastructure, where performance, resilience, and reliability are essential.
With continued growth across engineering and platform modernisation, this is an opportunity to join a technically strong environment where engineers are trusted with genuine ownership, complex challenges, and long-term career progression.
The Role
This is a Staff-level engineering position within a high-performing Belfast team responsible for a large-scale, high-throughput platform used globally every day.
You will operate as both a technical leader and hands-on engineer, contributing to complex system design while helping shape engineering standards, platform direction, and architectural decisions across the team.
The role is ideal for someone who enjoys solving difficult engineering problems at scale, mentoring other developers, and influencing how modern software platforms are built and evolved.
Key Responsibilities
- Lead the design and development of scalable backend systems and APIs
- Mentor and support engineers across multiple levels within the team
- Drive engineering best practices across code quality, testing, and maintainability
- Contribute hands-on to complex platform and architecture initiatives
- Improve platform scalability, resilience, and system performance
- Collaborate closely with Product, Architecture, and Engineering teams
- Support CI/CD pipelines, deployment activities, and automated testing
- Troubleshoot and resolve complex technical issues across distributed systems
- Ensure systems align with security and compliance standards
- Contribute to Agile planning, estimation, and technical roadmap discussions
What You'll Need
Essential
- 6+ years' commercial software engineering experience
- Strong backend development experience using C# / .NET
- Experience building scalable APIs and distributed systems
- Strong SQL Server / relational database knowledge
- Experience working within CI/CD environments
- Automated testing / BDD experience
- Comfortable working within Agile engineering teams
- Strong communication and technical leadership skills
- Must be based in Northern Ireland or within commuting distance of Belfast
Nice to Have
- Experience within high-scale or transaction-heavy environments
- Cloud or architecture experience
- Exposure to security or compliance-focused systems
Why Apply?
- Salary of £65k-£70k plus strong overall package
- 2 days a week in Belfast city centre office
- Private medical, dental, life assurance, and critical illness cover
- Strong pension contribution scheme
- Share purchase plan and additional lifestyle benefits
- Opportunity to work on genuinely large-scale, high-impact systems
- High-trust engineering culture with real ownership and autonomy
- Clear progression path into broader technical leadership and architecture responsibilities
Interested?
For more information, connect with Chanel Gillen at Ocho People or apply via the link below.