Senior Software Test Engineer jobs in Antrim County

MCS Group is delighted to be partnering with one of our closest clients, a rapidly scaling Insurtech firm, to recruit a Software Development Engineer in Test at a hugely exciting time for the business. With significant investment secured for 2025, the technology team is set to expand by over 50% in the first half of 2026, including major growth within the testing function. This exclusive...

Software Engineer in Test - AI Product About the Company Our client is a leading software company building award-winning products for accountants and small businesses across the UK and Ireland. Their suite of accounting, payroll, and HR solutions is trusted by thousands to simplify business operations and empower growth. They're brilliant people creating brilliant software - and now they're...

You will join the Cloud Platform team, building out new features and functionality to evolve core services and applications that form the foundation of aPrioris Cloud solution.

You will own the lifecycle of the services and application you work with, and be responsible for the DevOps pipelines and releases to production.

Manage the entire HR recruitment process, handle expatriate management, and support HR administrative functions and system enhancements. Ensure compliance with labor laws and facilitate staff Coordinator will manage projects, conduct data analysis on client benefits, prepare reports, and optimize processes within the team. Top Skills: ExcelPower BILocation: Belfast, United Kingdom Thales people...

About the Job This position is for a Senior Software Engineer with a minimum of 5 years of experience in backend development and a passion for building robust, scalable systems. We are looking for an engineer with a strong background in the C# .NET ecosystem, and a preference for candidates with significant experience on AWS. Are you ready for a challenge? We're looking for a dynamic software...

You will be working closely with the Machine Learning team; however, you are not required or expected to have background in Machine Learning. This is an applied role, and we are looking to hire a software engineer with experience in cloud computing and distributed systems. In this role, you will:

You should be comfortable with most of our core technologies:

I'm partnered with an early-stage, post-revenue AI startup is building an end-to-end operating system to help businesses detect and resolve complex B2B issues before they become costly or disruptive. The product is already being used by large enterprises across multiple industries, and demand is growing fast - hence this hire! Backed by a top-tier European venture fund, the company is tackling a...

You will design and deploy robust frontend client, backend services, infrastructure automation, and cloud-native solutions by utilising your software development knowledge and your DevOps proficiency across AWS and GCP.

Senior/Lead Software Engineer – Fully Remote (UK) A global B2B SaaS technology business is building out its European engineering hub and is hiring multiple Senior / Lead Software Engineers (JavaScript) to develop and enhance a mission-critical platform used internationally. These are hands-on individual contributor role with strong ownership — ideal for engineers who enjoy building high-quality...

MCS Group is delighted to be partnering with one of our closest clients, a rapidly scaling Insurtech firm, to recruit a Software Test Engineer at a hugely exciting time for the business. With significant investment secured for 2025, the technology team is set to expand by over 50% in the first half of 2026, including major growth within the testing function. This exclusive opportunity will see...

Senior Software Engineer (.NET) Back end Location: Belfast / Hybrid Eligibility: UK work authorisation required We are working with a global financial services technology organisation that builds business-critical platforms used across international markets. They're looking for a Senior Software Engineer to join a highly capable engineering team delivering scalable, cloud-native systems. This is...

You will collaborate with highly capable engineers across Belfast and the wider global engineering organisation, contributing to large scale distributed systems while helping shape engineering standards and best practices.

MCS Group is working exclusively with a high-growth software company with deep roots in Belfast. We're seeking a Senior Software Engineer with strong expertise in Java to join a growing team within their engineering function in Belfast. As a Senior Java Developer, you'll be part of a group driving transformation across some pretty unique industries, helping global brands through the creation of...

Senior Software Engineer (React, Typescript) Location: Belfast (3 days per week in office) Salary: 65-75k + bonus A global market infrastructure organisation is seeking a Senior Software Engineer to help shape the future of its digital platforms, delivering business-critical software for internal broking teams and external clients. You'll join a high-performing Agile engineering team working on...

Senior Front-End Software Engineer (React) Location: Belfast / Hybrid Eligibility: UK work authorisation required I'm working with a global financial services technology organisation that builds high-volume, business-critical platforms used across international markets. They're looking for a Senior Front-End Engineer to help design and deliver modern, scalable user interfaces used by both...

You will be comfortable taking ideas from early concept, leading technical decisions across backend and frontend, and delivering production ready software that scales.

You will join an environment that values initiative, technical leadership, and engineers who enjoy solving real world operational challenges.

You will play a key role in designing, delivering, and supporting system integrations for enterprise customers. Working closely with technical stakeholders, you will lead discovery sessions, translate business requirements into scalable technical solutions, and ensure seamless flow between customer systems and the platform.

Senior Software Engineer Location: Belfast, UK (Remote-first / Hybrid options available) Contract Type: Permanent Level: Senior (Individual Contributor - backend focus) The Opportunity We're looking for a Senior Backend Engineer to join a highly collaborative and structured Content Core team. This team is the first major entry point for user-generated content workflows, responsible for...

Job description. Senior Software Engineer - Java Location: Belfast / Hybrid Eligibility: UK work authorisation required This role sits within a global technology business building large-scale platforms used by millions of people every day. You'll join a highly capable engineering team working on complex, high-throughput systems where reliability, performance, and clean design really matter. As a...