Top Software Engineer Jobs in Belfast

Lead the development of backend platforms for national security and defence clients, leveraging cloud technologies and Agile methodologies, while ensuring operational responsibility for services and collaborating in cross-functional teams.

Own and design backend systems, APIs, and user-facing features for an AI platform. Build, ship, and operate scalable model training, evaluation, and deployment workflows; improve reliability, performance, observability, and documentation; mentor engineers and drive architectural and quality improvements.

The Senior Back-End Software Engineer designs, develops, and maintains scalable backend systems while taking ownership of the software development lifecycle.

The Senior Full-Stack Engineer will design and build scalable UI systems, collaboratively own features, and support production quality. Responsibilities include API design, debugging, and performance tuning.

As a Staff Software Engineer, you will lead the development of Mural's Canvas platform, ensuring high performance and reliability in real-time collaboration and document editing.

As a Senior Software Engineer at Kainos, you will design, develop, and maintain software applications, mentor juniors, and contribute to architectural decisions.

Lead design and development of Windows desktop applications. Ensure performance, maintainability, and accessibility, while driving feature lifecycle and collaborating cross-functionally.

The Software Test & Automation Engineer will verify and validate software, develop automated test strategies, and ensure compliance with cybersecurity standards throughout the product lifecycle.

The Senior Software Engineer at Bazaarvoice will design, develop, and deliver solutions for the Syndication platform, focusing on high-quality code, collaboration with teams, and coaching juniors.

As a Senior Software Engineer, you will build scalable distributed systems, improve developer experience, mentor peers, and lead incident responses.

The role involves developing, testing, and deploying Python microservices, solving complex technical problems, and contributing to architectural decisions. Engineers will work with a product team and ensure code quality through reviews and testing, while continuously learning and improving practices.

The Senior Software Engineer will enhance cloud development by building low-level runtime systems, focusing on performance and reliability. Responsibilities include developing APIs, optimizing distributed systems, mentoring engineers, and contributing to open-source projects.

The Lead Software Engineer designs and develops software solutions, leads teams, mentors junior members, and interacts with customers while integrating AI or ML technology.

The Senior Software Engineer will design and execute software projects, build backend services and APIs, enhance frontend libraries, manage infrastructure, mentor juniors, and improve engineering standards.

The Senior Software Engineer leads project subsystems, mentors junior engineers, and designs scalable SaaS solutions while optimizing performance and ensuring code quality.

The Senior Software Engineer will collaborate in small teams to develop and maintain backend and frontend components, focusing on high-availability systems, writing tests, and continuous delivery on Google Cloud Platform.

As a Staff Engineer, you'll enhance web tools for utility companies, ensuring scalability and efficiency in vegetation risk management and leading cross-team technology initiatives.

Join TrueLayer as a Senior Software Engineer, building a global open banking platform, enhancing financial technology with distributed systems, and collaborating on innovative features.

The Senior Software Engineer develops AI-driven applications, collaborates with teams, and contributes to creating specialized AI assistant technology using various programming languages and frameworks.

The role involves designing and maintaining scalable software platforms, troubleshooting complex problems, mentoring engineers, and establishing best practices to ensure software integrity.

The Senior Software Engineer will build robust technical solutions, focusing on RESTful APIs, TDD principles, and contribute to a strong engineering culture in a fast-paced environment.

Lead the development of software solutions for a logistics platform, overseeing technical strategy, mentoring teams, and ensuring high-quality software delivery.

Lead development of core geospatial products, data-processing and annotation tools. Set technical vision for web apps, ETL pipelines, and backend services; optimize ML model orchestration; mentor engineers; collaborate with product and customers to deliver scalable, near-real-time geospatial data systems.

Seeking a Senior Software Engineer to build AI inference systems. Responsibilities include optimizing GPU kernels, architecting inference stacks, and defining benchmarking methodologies. Requires strong programming skills and experience in ML systems.

As a Staff Unity Client Engineer, you'll develop game features, collaborate with teams, analyze code for bugs, and create design documents, ensuring high-quality game applications.