.Net Software Developer
Summary
Mid-level .NET developer building business-critical trading and data platforms for a global financial services technology company's Belfast engineering hub. Day to day: C#/.NET Core backend work, SQL, AWS cloud-native services, CI/CD pipelines, code reviews and mentoring, on a hybrid model (3 days onsite in Belfast).
.Net Software Developers (Mid-Level)
Location: Belfast (Hybrid) | Type: Full-Time | Permanent
MCS Group is delighted to be working with a global market leader in financial services technology that is building one of the largest and most advanced engineering hubs in Belfast. MCS have helped this company hire over 150 people and they are a core delivery hub working on business-critical trading and data platforms used across the globe.
As part of a major technology growth programme, the Belfast office is hiring mid level .NET Software Developers to shape next-generation trading systems and deliver large-scale engineering solutions.
What you'll do
Develop, enhance, and maintain complex systems using C# (.NET Core) and SQL
Build scalable, cloud-native solutions on AWS
Collaborate closely with Architects and QA Engineers to ensure robust, testable, and high-quality delivery
Take part in architectural discussions and CI/CD pipelines
Mentor teammates, contribute to code reviews, and promote engineering best practices
What we're looking for
Strong hands-on experience in C# (.NET Core)
Knowledge of modern frontend frameworks
Proficiency with Microsoft SQL Server or similar databases
Experience with cloud technologies like AWS or Azure
Agile mindset with experience working in collaborative teams
Financial services knowledge is beneficial but not essential
Why this opportunity is different
Impactful engineering: Belfast engineers aren't just maintaining systems - they own delivery of trading platforms, low-latency pipelines, and global data infrastructure.
Modern practices: CI/CD, AWS-first, containerised deployments, cross-functional squads, and a brand-new strategic partnership with AWS.
Career growth: Structured career paths into architecture, leadership, and platform ownership.
Scale & stability: The speed and autonomy of a modern tech hub with the security of a global business.
Strategic investment: Following recent acquisitons, Belfast is central to delivering next-generation trading solutions.
What to expect working here
Hybrid working model - 3 days onsite in Belfast
Competitive salary + annual performance bonus
Private healthcare and enhanced pension
Global exposure - work with teams in London, Paris, New York
Learning budget, training, and mentorship opportunities
Inclusive, innovative culture with low attrition
To speak in absolute confidence about this opportunity, please send an up to date CV via the link provided or contact Matthew Rainey at m.rain
Even if this position is not right for you, we may have others that are. Please visit MCS Group to view a wide selection of our current and exclusive roles
MCS Group is committed to Equality, Diversity, and Inclusion for all, being the first recruitment agency in NI to achieve Bronze Diversity Mark accreditation, if you have a disability which means you require a reasonable adjustment to be considered at any stage of the recruitment process, please contact us and we will endeavour to facilitate the request.
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Skills:
c# react software developer software engineer aws full stack developer
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