Top Software Engineer Jobs in Belfast

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

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.

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.

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.

Join the Market Data Services team to develop and maintain data services. Write Java and Python application modules and unit tests, participate in design and code reviews, optimize code, support builds and deployments, ensure data integrity, and help implement cloud-based data infrastructure, streaming, and CI/CD practices.

Join the Middleware team to build and maintain microservices powering real-time message delivery, tenant lifecycle management, and search. Develop features, scale services, implement automation with GitOps/CI-CD, and collaborate with SRE and senior engineers on code reviews, documentation, and operational tooling.

Build and extend features across the Gearset platform using a C#/.NET and React/TypeScript stack. Collaborate with product, customers, and cross-functional teams to spec, design, deliver, and iterate on customer-focused solutions. Contribute to development practices, participate in rapid release cycles, and use cloud infrastructure (Postgres, AWS, Kubernetes).

Design, build and expand Gearset's DevOps platform end-to-end. Collaborate with customers and cross-functional teams, contribute to architecture and development best practices, and deliver incremental features with fast release cycles while mentoring and sharing expertise across the engineering team.

The Software Engineer will design, develop, and maintain backend services and APIs for Speechify, ensuring they meet business and scalability requirements. The role involves collaboration on B2B solutions and aligning backend architecture with product strategy.

We are seeking a collaborative Backend Engineer with Java expertise to design, build, and maintain backend services, focusing on operational excellence and system reliability. Responsibilities include architecture, automation, and supporting production environments in a multi-cloud setting.

The role involves developing GPU Monitoring features and maintaining eBPF functionality, debugging production issues, and contributing to product architecture in Datadog's Agent over various Linux environments.

The role involves developing software solutions for credit risk management, applying cloud principles, and enhancing business processes while ensuring compliance standards.

Develop and optimize incident response capabilities, review logging setups, benchmark cloud performance, manage security configurations, and implement infrastructure as code with Terraform and Cloudformation. Collaborate with product teams to support IAM needs.

The Backend Software Engineer will manage the lifecycle of short-term projects, perform reliability analysis on applications, and interface with teams to deliver features.

The Frontend Software Engineer develops and enhances user interfaces using React and TypeScript, collaborating on architectural decisions and improving system performance.

As a Software Engineer on the Menu team, you'll develop and manage systems for accessing menu records, collaborate with Product, and own tasks while ensuring high-quality software delivery.

The Software Developer will collaborate on new software applications using JavaScript and AgilePoint, providing support, documentation, and managing enhancements.

The Test System Software Engineer will develop and maintain automated test systems, troubleshoot test failures, and improve production processes while collaborating with multiple engineering teams.

As a Software Engineer, you will design, develop, and maintain software solutions, collaborating with teams in an agile environment while ensuring quality and security in your code.

Responsibilities include building and maintaining backend services for distributed applications, requiring functional programming with Scala and TypeScript, alongside client interactions.

As a Software Engineer at Canonical, you will design, build, and ship software, improve packaging and distribution processes, and mentor colleagues while contributing to open source projects.

The Junior Ubuntu Software Engineer will design, build, and ship software, focusing on quality and resilience, while engaging with the open source community.

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.

As a Software Engineer, you will design and develop applications, write clean code, engage in code reviews, optimize systems, and explore new technologies in a remote team.