Top Software Engineer Jobs in Belfast

The Senior Software Engineer II will develop Akamai's object storage platform, focusing on building reliable, scalable, cost-effective solutions and defining next-gen cloud tooling.

As a Software Engineer II at Affirm, you will develop backend systems, collaborate with product teams, and support operations, ensuring timely project delivery while fostering team engagement and growth.

Develop and maintain high-volume exchange connectivity software, work within an agile team, write efficient code, and mentor team members.

Design and implement billing systems while optimizing performance and mentoring engineering teams. Collaborate with finance and compliance to translate business needs into technical solutions.

The Senior Software Engineer will design and build backend services for health data, improve reliability, and deliver robust solutions to enhance patient care.

The Software Engineer will build customer-facing products for healthcare, focusing on full-stack feature development and user experience, while engaging with customers and iterating on the product based on feedback.

The Software Engineer will enhance data collection and ingestion pipelines for AI model training, collaborating on dataset roadmaps and managing cloud infrastructure.

The Mid-Level Software Engineer will build and maintain backend services, manage databases, automate workflows, and improve CI/CD pipelines, mainly using Python and cloud technologies.

The consultant will develop and maintain Java applications, implement cloud solutions, and mentor team members in a collaborative environment, focusing on innovation and modern practices.

The Associate Software Engineer will develop software features with guidance from senior engineers, participate in code reviews, collaborate on requirements, and engage in teamwork and learning activities in a fully remote environment.

As a Senior Fullstack Software Engineer, you will develop and enhance payment solutions, focusing on front-end capabilities, API development, and mentoring junior developers, while ensuring code quality and performance.

As a Software Engineer, you will design and build user-facing products and services, develop scalable APIs, and collaborate with cross-functional teams while ensuring system performance and code quality.

As a Software Engineer on the Engage team, you'll develop, scale, and monitor solutions across the Olo Engage product suite, collaborating with various stakeholders and contributing to technical decision-making.

Seeking a Senior Software Engineer for designing, developing, and maintaining software solutions; focusing on billing platforms and collaboration across teams.

As a Software Engineer II, you will build and maintain features on Stora's Rails-based platform, improve app stability, and collaborate with a small team on various domains.

The Principal Engineer will lead the technical strategy for software supply chain security, ensuring compliance and secure architecture within GitLab's CI/CD platform while mentoring teams and collaborating with stakeholders.

Develop and deploy AI-powered applications, collaborate with data scientists, drive improvements, and mentor team members in a full-stack environment.

Develop and maintain SystemOperations applications (NestJS, Angular, GraphQL, SQL, MQTT). Own and improve CI/CD pipelines, release automation, tooling (GitHub, Atlassian, Nexus, SonarQube), environment administration, and observability while ensuring IEC-62443 security alignment and cross-functional collaboration.

Citi seeks a Senior Software Engineer (Java) to design and develop complex, high-performance systems for fixed income trade processing, utilizing Java and Spring technologies.

As a Software Engineer Intern, you'll develop innovative solutions, gain exposure to the software development lifecycle, and collaborate in an Agile environment at Visa.

As a Software Engineer - Platform, you will develop core data and software platforms, designing systems for complex datasets and collaborating with scientists to streamline data usage.

The Senior Software Engineer II will enhance operational excellence by designing automated reliability systems, incident management tooling, and observability infrastructure while mentoring teams and implementing AI-driven solutions.

The Senior Programmer Analyst will lead development using modern software engineering and DevOps practices, requiring extensive Java and Go expertise, along with fostering collaborative developer culture.

The Software Engineer will support and maintain backend infrastructure for a mobile app, focusing on Azure Functions, design new features, and ensure seamless integration with mobile services.

Join Citi as a Python Software Engineer focused on Generative AI to design and develop production-grade AI solutions for Markets, collaborating with cross-functional teams to drive innovation.