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Senior .Net Engineer - Hybrid (Belfast) About the Company: My client is a global leader in market infrastructure. With a focus on data solutions, and digital transformation, they are a World leader in their market. Role Overview: My Client is seeking a Senior Software Engineer with a strong background in .NET Core and cloud-native systems. This role offers the opportunity to work within a high-performing agile team, contributing to the full software development lifecycle. You'll help design and build distributed systems and APIs, while mentoring others and promoting best practices in engineering delivery. Key Responsibilities: Design, build and maintain robust, scalable applications and services Ensure software meets business needs, aligns with technical strategy, and is delivered to a high standard Work closely with architects and product teams to refine requirements and deliver solutions Contribute to a culture of continuous improvement, introducing new tools, practices, or technologies Mentor junior engineers and help shape technical decision-making within the team Essential Skills & Experience: Expert-level C# development with recent experience in .NET Core and .NET Framework Experience designing and building distributed, event-driven systems Strong API development skills (REST and/or GraphQL) Proficient in relational databases (MSSQL, MySQL, etc.) Experience deploying and managing applications in cloud environments (AWS or Azure) Hands-on involvement across the SDLC including QA and production support Desirable Skills: Experience in WPF desktop application development Background in financial services is desirable Knowledge of the FIX protocol Exposure to serverless and microservices architecture Experience with TDD, BDD, or similar methodologies What They Offer: Salary up to £60k A flexible hybrid work schedule. Private pension scheme Private healthcare High spec equipment provided For more information on this opportunity, connect with Neill Ferguson on LinkedIn or submit your CV via the link below. Skills: c# .net angular react full stack developer aws Benefits: Work From Home

Senior .NET Engineer - FinTech Innovation | Belfast (Hybrid) Are you ready to build the next generation of financial technology? Do you want to join a company that's investing heavily in its Belfast hub, building multiple brand-new engineering teams to shape the future of its platform? My client, a leading player in the global FinTech industry, is expanding rapidly in Belfast and is seeking experienced Senior .NET Engineers to be part of their exciting growth journey. This is your chance to work on high-impact systems that process complex financial data at scale, within a collaborative, engineering-driven culture. What You'll Be Doing Designing, developing and deploying high-performance .NET solutions within a cloud-native environment. Building modern microservices architectures using C#, .NET Core, and Azure. Working closely with Product, DevOps, and QA teams to deliver secure, scalable applications. Contributing to architectural decisions and mentoring mid-level engineers within your team. Writing clean, testable, and maintainable code that drives innovation across the FinTech domain. Tech Stack & Environment Languages: C#, .NET Core, ASP.NET Cloud: Azure (Functions, Service Bus, App Services) Databases: SQL Server, Entity Framework, and exposure to NoSQL a plus DevOps: CI/CD pipelines (Azure DevOps, GitHub Actions, or similar) Practices: Agile delivery, TDD/BDD, code reviews, and continuous improvement About You 5+ years of commercial software engineering experience, ideally within .NET and modern distributed systems. Strong understanding of clean architecture, domain-driven design, and microservices. Experience with cloud deployments and performance optimisation. A passion for solving complex technical challenges and driving quality in everything you build. Excellent communication skills and a desire to contribute to a positive, collaborative engineering culture. What's On Offer Competitive salary and annual bonus Hybrid working model - typically 2 days a week in the Belfast office Private healthcare, pension, and generous holiday allowance Clear progression paths - opportunities to move into Staff Engineer, Technical Lead, or Architecture roles The opportunity to work in a brand-new modern office with newest technology and a world-class engineering team This is more than just a job - it's a chance to be part of something new. Belfast is fast becoming the heartbeat of this company's global engineering strategy, and they're looking for talented developers who want to help shape that journey. If you have any further questions on the role, please feel free to reach out to Brendan McCrory directly. Skills: .net c# azure aws

Software Engineer - Finance & AI Systems (Permanent | Remote across Ireland or UK | Competitive salary + benefits) We're partnering with an award-winning financial technology company that's expanding its engineering team as they continue to modernise their platform and explore the use of AI within their product suite. You'll be part of a team building secure, scalable finance and HR solutions used by thousands of businesses daily, working with modern .NET technologies and contributing to the integration of AI into their product roadmap. This isn't a big faceless enterprise role, it's a close-knit engineering team where ideas get implemented quickly, innovation is encouraged, and the quality of the product always comes first. What you'll be doing Building and enhancing core finance and HR functionality in C#/.NET. Contributing to the evolution of existing desktop and cloud-based products. Designing and delivering AI-powered features that improve automation, accuracy, and customer experience. Writing clean, maintainable code with a focus on performance and scalability. Collaborating with cross-functional teams including Product, Design, and QA. Participating in peer reviews, sprint planning, and architectural discussions. What we're looking for Strong experience in C#/.NET software development. Solid understanding of desktop or SaaS application architecture. Proven track record of delivering production-level software in a commercial environment. Previous hands-on experience with AI, ML, or related technologies (e.g. model integration, data-driven automation, intelligent assistants). Familiarity with databases (SQL Server, PostgreSQL, or similar). Comfortable working in an Agile environment. Strong communication skills and a pragmatic approach to problem-solving. Nice to have Exposure to finance, fintech, or compliance-based software. Experience working with cross-platform applications or modern desktop frameworks (e.g. WPF, MAUI). Interest in LLMs, data processing, and how AI can improve user experience in enterprise tools. If you're a curious and capable engineer who enjoys building robust software and wants to help shape how AI transforms an established product used by thousands, this is a brilliant opportunity. Interested ? Reach out to Ryan Quinn on LinkedIn to find out more. Skills: .Net AI Cloud Benefits: Work From Home Bonus

Senior QA Engineer - Hybrid (Belfast) About the Company My client is a global leader in market infrastructure, driving innovation in data solutions and digital transformation. With a reputation for excellence and scale, they continue to set the standard in their field worldwide. Role Overview We're looking for a Senior QA Engineer to join a high-performing Agile team and take ownership of quality across critical software platforms. This is a hands-on and collaborative role, with a strong focus on API automation, BDD/TDD practices, and embedding quality into CI/CD pipelines. Key Responsibilities Deliver functional & non-functional testing for complex APIs Shape and implement robust automation strategies using modern BDD and performance tools Enhance and maintain test frameworks and CI/CD integrations Act as a quality champion, mentoring Agile teams on best practice Own the execution of test plans, automation suites, and performance scripts Essential Skills & Experience 5+ years' QA/testing experience (Fintech or financial services exposure highly desirable) Strong background in API testing & automation with tools such as Selenium, Cypress, or Playwright Knowledge of BDD frameworks (Cucumber), performance tools (JMeter), and FIX protocol Hands-on experience with CI/CD pipelines (GitLab, Jenkins, or TeamCity) Proven track record in Agile environments What's on Offer Competitive salary up to £55k Flexible hybrid working model Private pension scheme Comprehensive private healthcare High-spec kit to ensure you can deliver at your best For more information on this opportunity, connect with Neill Ferguson on LinkedIn or send your CV via the link below. Skills: qa principal senior manager automation sdet playwright Benefits: Work From Home

At unosquare we're looking for experienced backend software engineer to help us build and maintain software systems in support of our business and partners. If you are an experienced software engineer with a passion for good design and architecture, with great interpersonal skills we want you!. The Sr Software Engineer will be responsible for providing support for contributing to new software development efforts on the most current .NET technology stack and Azure. Responsibilities • Create systems that are durable and flexible by developing for change – favor configurability over customization, • Create enterprise grade framework for engineers to leverage, with security, scalability, • Refactor and extend the existing codebase to fix defects and add features/functionality, • Architect and develop applications, workflows, and prototypes to meet the business’ needs, • Refine functional requirements and develop technical specifications, • Generate technical documentation to communicate architectural and design decisions, • Develop complete test plans, tests, and strong code coverage, • Resolve defects during QA testing, pre-production, production, and post-release cycles, • Communicate & collaborate cross-functionally across various teams, organizations and internal and external stakeholders to drive engineering efforts Education and Experience • Bachelor’s degree in Computer Science or related field, Master’s degree a plus, • 7+ years of software development experience including:, • Strong portfolio of work showing experience developing secure and standards-compliant code across multiple platforms. (Java, Microsoft stack as well as Open Source technology), • Solid conceptual knowledge of design patterns and language agnostic design experience, • Test driven development mindset and strong discipline of writing extensive tests for every production code ship, • Experience with Cassandra or Cosmos DB or other NO SQL databases, • Experience with multi-tenant architectures in the SaaS space, • Fluent in several of the following languages/platforms/libraries: Java and .NET, • Strong understanding of API’s and web service concepts such as REST, SOAP, and XML/JSON business object representations, • Experience developing API's utilizing REST architecture, • Ability to handle a fast-paced environment for iterative project turnarounds on mission & revenue critical, customer-facing applications, • Experience with Agile development methodologies such as Scrum and Extreme Programming, • Git, Jira, Confluence experience, • Experience is queue based systems like RabbitMQ, MSMQ, Kafka, Event Hub is preferred., • Knowledge of Relation databases like Oracle/SQL server., • Experience in .Net Core, Azure is preferred.

We’re looking for a QA Engineer who can combine software engineering skills with a deep understanding of testing and quality practices. Help define and promote best practices for quality across the engineering team. Ctrl Alt is a leading tokenization infrastructure platform, combining groundbreaki

Proven experience as a QA Engineer or Senior QA in complex software environments. Ability to mentor junior QA team members.

Senior Data Engineer – QA Higher Education, Home Based. Leading code reviews, deployments, and mentoring fellow engineers. QAHE are embracing the latest Microsoft technologies, and your role will be crucial to driving this forward.

Mobile Application QA Engineer. Proven work experience as a software test engineer with a mobile app focus. Bachelor's degree in computer science, software engineering, or similar field.

QAHigherEducation #QAHE #Data #DataEngineering #Microsoft #SQL #Hybrid. Senior Data Engineer - QA Higher Education, Home Based. Permanent Opportunity to shape the future of data with QAHE.

QA Engineer II - Data Discovery and Test.

QA Engineer II - Data Discovery and Test. QA Engineer II - Data Discovery and Test. Serve as a quality advocate on Data Engineering teams to ensure that Test Driven Development processes are being followed.