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# Senior .NET Developer (multiple roles)

- **Company:** Ocho People
- **Location:** Belfast, UK
- **Experience:** Expert
- **Salary:** £60,000.0 - £65,000.0
- **Contract:** Permanent contract
- **Skills:** .NET Framework, Algorithmic Trading, Amazon Web Services, C Sharp (Programming Language), Cloud Computing, Code Review, Relational Databases, DevOps, Microsoft SQL Server, Scrum Methodology, Cloud Platform System, .NET Core, Delivery Pipeline, Reliability of Systems, Build Management, Low Latency, Microservices
- **Published:** July 24, 2026
- **Apply:** https://www.adzuna.co.uk/jobs/details/5811134434

## About the Role

* 5+ years of professional .NET development experience
 * Strong commercial experience with C# and .NET Core
 * Solid experience with SQL Server and relational database design
 * Experience building and maintaining microservices architectures
 * Based in or able to commute to Belfast for hybrid working, three days per week in the office

Desirable / Nice to Have:

 * Exposure to AWS or another major cloud platform
 * Experience within trading, exchange or financial markets technology
 * Interest in pursuing AWS certifications

## Description

* Senior .NET Developer, Belfast, hybrid working with three days per week in the office
 * Salary up to £65,000 depending on experience
 * Join a major upgrade of a trading platform, working with C#, .NET Core, SQL Server and microservices
 * Genuine hands on exposure to AWS, with support towards AWS certifications
 * Work for a global markets and financial services business investing heavily in its technology estate, This is a rare opportunity to join a senior engineering team at the centre of a major trading platform upgrade, working with modern .NET technologies and cloud infrastructure. You will operate with real autonomy, contributing to architecture decisions alongside experienced engineers and stakeholders across the business. The role suits a developer who enjoys solving complex problems in high performance, low latency systems and wants genuine exposure to AWS as the platform modernises. You will collaborate closely with fellow senior developers, architects and product teams to deliver a platform used across global markets., * Lead development of core components within the trading platform upgrade programme
 * Design and build scalable, high performance services using C#, .NET Core and SQL Server
 * Architect microservices that support real time trading workflows
 * Drive adoption of AWS services as part of the platform's cloud migration
 * Mentor junior and mid level developers across the team
 * Collaborate with architects to define technical standards and best practice
 * Review code and champion quality across the development lifecycle
 * Partner with QA and DevOps to improve deployment pipelines and system reliability
 * Troubleshoot and resolve complex production issues within trading systems
 * Contribute to sprint planning and technical roadmap discussions


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