Software Engineer (.NET)

Ocho People; Belfast; On-site; GBP 80,000 - 100,000; Full time

Job summary

A leading technology firm in Belfast is seeking a mid-level Software Engineer specializing in .NET and C#. You'll work on a mission-critical platform, building robust software solutions and collaborating with experienced engineers. The role offers exposure to distributed systems and APIs, alongside a strong technical team. Benefits include a competitive salary and employer-paid private health insurance. Join a supportive engineering culture that values curiosity, ownership, and continuous improvement.

Benefits

Highly competitive salary

Employer-paid private health insurance

Pension scheme with employer-matched contributions

Generous annual leave

Occasional international exposure

Regular team events

Qualifications

• 3+ years of commercial software engineering experience.
• Strong hands-on experience with .NET and C#.
• Demonstrable debugging and problem-solving skills in live systems.
• Comfortable developing in Windows-based environments.
• Experience working on complex, data-heavy or transaction-driven systems is beneficial.

Responsibilities

• Build and evolve robust software solutions using .NET and C#.
• Contribute to the design and extension of APIs and backend services.
• Analyse and resolve issues across user-facing systems, services and data layers.
• Collaborate with engineering, infrastructure and support teams.
• Engage with end users to clarify requirements.

Skills

Commercial software engineering experience

.NET

C#

Debugging skills

Problem-solving skills

Communication skills

Education

Degree in Computer Science, Engineering, Mathematics or equivalent

Tools

Visual Studio

Windows

Linux

Job description

Overview

Software Engineer (.NET) – We are working with an elite engineering organisation in Belfast to hire a mid-level Software Engineer to join a highly respected .NET development team. This is a rare opportunity to work on a complex, mission-critical platform used at scale, where engineering quality, system reliability and technical depth genuinely matter.

You'll be joining a team that operates in demanding, data-intensive environments and values curiosity, ownership and continuous improvement. The role offers strong exposure to distributed systems, APIs and platform engineering, alongside experienced engineers who set a very high technical bar.

The Role

• Build and evolve robust software solutions using .NET and C#
• Contribute to the design and extension of APIs and backend services
• Analyse and resolve issues across user-facing systems, services and data layers
• Develop configurable API solutions tailored to client and platform requirements
• Collaborate with engineering, infrastructure and support teams to resolve complex technical issues
• Participate in technical knowledge-sharing and architecture discussions
• Support client integrations and platform onboarding activities
• Contribute to platform stability, performance and software quality initiatives
• Engage with end users where required to clarify requirements and deliver practical solutions

The Person

• 3+ years of commercial software engineering experience
• Strong hands-on experience with .NET and C#
• Demonstrable debugging and problem-solving skills in live systems
• Degree in Computer Science, Engineering, Mathematics or equivalent professional experience
• Comfortable developing in Windows-based environments
• Experience working on complex, data-heavy or transaction-driven systems is beneficial
• Exposure to system integrations, messaging or API-driven architectures is advantageous
• Self-motivated, organised and comfortable owning work end to end
• Strong communication skills with a professional and collaborative mindset

Technology Environment

• Operating Systems: Windows and Linux
• Development Tooling: Visual Studio and modern source control
• Languages and Frameworks: C#, WPF, Python, PowerShell
• APIs and Data: RESTful services, relational databases, search and analytics platforms
• Domain Complexity: High-volume, low-latency, rules-driven systems

What’s On Offer

• Highly competitive salary, benefits and performance-based incentives
• Employer-paid private health insurance, life assurance and income protection
• Pension scheme with employer-matched contributions
• Generous annual leave and progressive time-off policies
• Occasional international exposure and collaboration
• Regular team events and a supportive, engineering-first culture
• The chance to work alongside some of the strongest .NET engineers in Belfast

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