1 to 25 of 31 Permanent C# Jobs in Belfast

teams, working in an Agile environment Demonstrable experience designing, developing and maintaining distributed, event-driven, cloud-native systems Expert in the latest versions of .NET Framework and .NET Core (C#) Experience in API (REST, GraphQL) design and development Experience in relational database design and optimization (MSSQL, MySQL, etc.) Experience in the deployment and management of cloud (AWS, Azure, etc.) assets More ❯

code reviews, unit testing, etc.) Partner with QA to ensure robust software quality Experiment with technologies to ensure the best fit for purpose Experience Needed Essential: Strong background in C# .NET and/or Java Experience with Git, CI/CD tools, and database technologies (SQL/NoSQL) Excellent problem-solving and communication skills Secure coding and API architecture knowledge More ❯

to solve complex real-world problems Drive innovation in fraud analytics, data engineering, and AI applications What You Bring Proven experience in Java or a similar OOP stack (e.g., C#, Kotlin, Scala) Strong grasp of REST APIs, microservices, and containerisation (Docker/Kubernetes) Agile mindset with strong software engineering fundamentals Passion for innovation, learning, and leading by example Familiarity with More ❯

as a Technical Lead, working on large-scale enterprise projects. Proven expertise with OutSystems platform development and the ability to manage complex systems. Strong knowledge of object-oriented programming (C#), .NET Framework, and ASP.NET. Experience with database systems such as MS SQL Server and proficiency in database design and development. Advanced proficiency in front-end technologies, including HTML5, CSS, AngularJS More ❯

deliveries. Essential/Desired Criteria: Essential: STEM Degree or equivalent industry experience. Worked within an Agile Cross-functional delivery team. Demonstrable professional experience of Full-stack Software Engineering using C# (.Net 8+) AND/OR Node.js, Typescript/JavaScript. Developing well tested software released into production environments. Full software development lifecycle in a technical role. Worked within a technical platform More ❯

Corp Functions) Apply locations Belfast time type Full time posted on Posted Yesterday job requisition id R4062 Role Responsibilities Design, develop, and maintain back-end services and APIsin .Net C#, with a focus on cloud-based distributed architecture . Ensure high-quality code through automated testing, particularly unit testing, and maintain a strong emphasis on code quality. Implement & maintain Infrastructure More ❯

code reviews, unit testing, etc.) Partner with QA to ensure robust software quality Experiment with technologies to ensure the best fit for purpose Experience Needed Essential: Strong background in C# .NET Experience database technologies (SQL/NoSQL) Secure coding and API architecture knowledge Desirable: Web development experience (React, TypeScript, JavaScript) Familiarity with cloud (AWS, Azure) Benefits A highly competitive salary More ❯

Engineer to report progress, flag blockers, and share ideas. The Ideal Person 5+ years of commercial software engineering experience, with strong system design and architecture exposure. Good knowledge of C# and .NET (ideally .NET 6/7). Strong grasp of design patterns , software architecture, and principles like SOLID , DRY , and clean code . Proven ability to build and maintain More ❯

Engineer to report progress, flag blockers, and share ideas. The Ideal Person 5+ years of commercial software engineering experience, with strong system design and architecture exposure. Good knowledge of C# and .NET (ideally .NET 6/7). Strong grasp of design patterns , software architecture, and principles like SOLID , DRY , and clean code . Proven ability to build and maintain More ❯

procedures design Proficient in writing unit, integration, and regression tests for database code Solid understanding of RESTful patterns and data-access layers for service-oriented architectures Nice-to-have C#/.NET or Java experience for writing micro-services that wrap data logic Exposure to cloud SQL services (Azure SQL, AWS RDS, or GCP Cloud SQL) Familiarity with AI-assisted More ❯

improvements and updates. Curious and willing to onward develop and learn. Desirable Criteria Benefits: Familiarity and experience with agile development in delivery Experience in other programming languages, specifically C++, C# or Java Experience in Automation/Testing frameworks Experience of Continuous Integration/Development Experience of API integration/development Experience of test/deployment automation Experience of AWS services More ❯

a software engineering role, ideally in a fintech or payments environment Strong understanding of backend/server-side product development Proficiency in an OO language such as Java or C# Working knowledge of design patterns, refactoring, and clean code principles Comfortable working across a variety of project sizes - from solo builds to cross-functional delivery teams Solid web client programming More ❯

in code reviews, solving real-world problems, and learning from experienced engineers around you. What You'll Need Experience in .Net software development, ideally building applications. Solid grounding in C#, with exposure to .NET Core, ASP.NET MVC, and Web APIs. Experience or familiarity with a modern front-end JavaScript framework. A keen interest in both frontend and backend development. A More ❯

hybrid role requiring employees to work from the office 3 days a week, as determined by leadership. Minimum Qualifications: Strong coding skills in Object-Oriented Languages such as Java, C#, or C++. Passion for software engineering. Desire to learn and leverage new tools and technologies. Analytical skills to translate and communicate technical requirements. Effective communication skills for team discussions and More ❯

business-critical software solutions for both internal and external stakeholders across global financial and commodities markets. This is an ideal position for an experienced engineer with strong proficiency in C# or Java, a passion for quality and testing, and a desire to be part of a modern, forward-thinking development culture. The Opportunity As a Senior Engineer, you will join … and business expectations. Raise technical risks and blockers early to minimise delivery delays. Essential Skills & Experience: Degree in Computer Science or relevant industry experience. Proven software development experience with C# .NET and/or Java . Solid understanding of secure coding practices and API architecture . Strong focus on software testing and quality assurance . Experience with git-based source More ❯

on the delivery Experience/Competences Demonstrable experience designing, developing and maintaining distributed, event-driven, cloud-native systems Expert in the latest versions of .NET Framework and .NET Core (C#) Experience in API (REST, GraphQL) design and development Experience in relational database design and optimization (MSSQL, MySQL, etc.) Experience in the deployment and management of cloud (AWS, Azure, etc.) assets … the delivery Experience/Competences Essential Demonstrable experience designing, developing and maintaining distributed, event-driven, cloud-native systems Expert in the latest versions of .NET Framework and .NET Core (C#) Experience in API (REST, GraphQL) design and development Experience in relational database design and optimization (MSSQL, MySQL, etc.) Experience in the deployment and management of cloud (AWS, Azure, etc.) assets More ❯

applications for workflows. Working with teams to improve system performance. Integrate software solutions and databases. Provide ongoing support and troubleshooting for systems. The Person: Software development experience Proficiency in C# and asp.net Strong experience with SQL databases Manufacturing background is a plus Familiarity with ERP systems is a bonus What's in it for you? Flexible working hours and early More ❯

the perfect opportunity for an ambitious full-stack developer with a passion for UI work to join a scaling technology company. The Ideal Person Strong experience with .Net/C# Exposure to modern front-end frameworks (e.g. Blazor, React, Angular, or similar) A good appreciation for UI/UX best practices - you'll have an eye for design, be comfortable More ❯

the perfect opportunity for an ambitious full-stack developer with a passion for UI work to join a scaling technology company. The Ideal Person Strong experience with .Net/C# Exposure to modern front-end frameworks (e.g. Blazor, React, Angular, or similar) A good appreciation for UI/UX best practices - you'll have an eye for design, be comfortable More ❯

this whilst learning about new technologies and approaches, with room to learn, develop and grow. MINIMUM (ESSENTIAL) REQUIREMENTS: • Experience delivering software designs for multi-tiered modern software applications. • Strong C#/.Net Experience • Experience of technical ownership for a product/software project, including architecture, estimation, product planning and user story/requirement creation. • Understands non-functional concerns for customers More ❯

support CI/CD and DevOps excellence What Youll Bring 7+ years in test engineering, with at least 1 year in a leadership or management role Strong experience in C#/.NET Strong technical background in automated testing tools (e.g., Playwright, SpecFlow, JMeter, K6) Experience with CI/CD tools and cloud/on-prem hybrid environments Proven ability to More ❯

critical trading systems. This role involves building scalable systems that directly impact market access on a global scale. What you'll do? Develop, enhance, and maintain complex systems using C# (.NET Core), React, and SQL Build cloud-native solutions using AWS Collaborate closely with Solution Architects and QA Engineers to ensure robust, testable, and high-quality delivery Mentor junior team … and drive best engineering practices Contribute to architectural discussions and CI/CD pipelines What We're Looking For? Professional experience in software engineering Strong hands-on expertise in C# (.NET Core) and modern JavaScript frameworks (preferably React) Proficiency in Microsoft SQL Server or related relational databases Familiarity with AWS or other cloud technologies is advantageous Collaborative mindset with experience More ❯

.NET Developer, .NET 9 - Social Networking Site – Belfast (Tech stack: .NET Developer, .NET 9, C#, Web API 2, Entity Framework, Microservices, Azure, Programmer, Full Stack Engineer, Architect, .NET Developer) Our client is the world’s largest social-networking web site and they have ambitions to become the biggest web site in the world! Their global presence currently stretches across … see another 10 countries added to this list as well as their workforce increasing by 100% in size. Underpinning this success is their hip and cutting-edge .NET/C# technology platform. We are seeking several .NET Developer to work on the development of revolutionary new features that will draw users to their web site for longer periods of time. … .NET Developer applicants should have a skill set that encompasses: .NET, .NET Core/ASP.NET MVC, C# and Azure SQL. We are keen to hear from .NET Developer candidates with a strong understanding object orientated (OO) development and the full software development life cycle. This is a rare opportunity to join a truly exciting global brand. Our client offers over More ❯

impacted by our work. Engineers work across the business and talk directly to customers and partners , to ensure we're solving the most pressing problems. Our tech stack includes C#, React, TypeScript, Postgres, AWS and Kubernetes. You'll become familiar with our pragmatically chosen stack, but you'll also help us define what great looks like. What you'll achieve … continual improvement, being comfortable giving and receiving constructive feedback to make your work even better You can read more about our engineering values here Great to haves Familiarity with C#/.NET, JavaScript/TypeScript and React Expertise with an OOP language (eg. Java, C++) and a modern JS framework (eg. Angular, Vue.js ) Proficiency in working on a distributed, cloud More ❯

Head of Engineering - SaaS/C#/.Net About the Company Imagine joining a company that is transforming how businesses manage their supply chains and quality control worldwide. My client's cloud-based platform empowers global companies with innovative tools to enhance efficiency, streamline processes, and provide real-time insights. The Opportunity We're supporting a well-established SaaS business … a collaborative, feedback-driven engineering culture Essential Experience 5+ years in software engineering leadership roles, ideally with full-stack delivery experience Strong experience in the Microsoft tech stack (.NET, C#, SQL Server) Experience with front-end frameworks, JavaScript libraries, and responsive design principles Background in SaaS platforms, DevOps tooling, and cloud infrastructure Proven ability to scale and mentor engineering teams More ❯