Top Software Engineer Jobs in Belfast

Canonical seeks open-source enthusiasts to optimize Ubuntu for new silicon technologies, collaborating with teams and customers to enhance software quality and performance across various platforms.

The Software Engineer will design, develop, and support the MEMX Trading system software, focusing on production support during US evening hours.

Design, develop, and maintain authentication and authorization systems. Provide technical leadership, mentor teams, and ensure security standards across scalable infrastructures.

As a Senior Software Engineer, you will lead your team in shipping features, making technical decisions, and mentoring others to scale products effectively.

As a Go Software Engineer for Identity Management, you will design, implement, and enhance identity management solutions, collaborate with a distributed team, and contribute to the development of authentication and authorization systems.

The Principal Software Engineer I will focus on improving distributed systems for Elasticsearch, managing cluster coordination, and addressing performance issues.

The role focuses on enhancing Elasticsearch's distributed systems for performance, resilience, and managing data indexing across multiple nodes while diagnosing challenges and collaborating across teams.

As a Senior Software Engineer, you'll design, build, and scale the core systems and APIs of The Flex platform, focusing on automation, reliability, and performance.

The Senior Software Engineer will lead the design and management of cloud infrastructure, automate systems, ensure security, and enhance developer experience while mentoring the team.

Lead design and implementation of C++ software for secure embedded payment terminals, handling EMV/contactless/mobile transactions, cryptography and POS integrations. Drive full SDLC delivery, mentor engineers, improve CI/CD and tooling, troubleshoot embedded stacks, and collaborate with product and test teams to deliver production-grade solutions.

As a Staff Software Engineer, you will lead software development for payment solutions, enhance code quality, and ensure compliance standards.

Lead the design and development of complex Rails features, mentor junior engineers, define technical direction, and ensure high-quality code while collaborating with stakeholders.

Responsible for building scalable distributed systems, mentoring teammates, innovating on technical solutions, and improving team processes. Requires expertise in backend languages, especially Golang and Typescript.

Design, implement, and maintain Golang infrastructure services for Confluent Cloud. Ensure availability, performance, and capacity planning of cloud systems while collaborating with engineering teams.

Design and maintain Golang infrastructure services for the Confluent Cloud Platform, ensuring performance, availability, and capacity planning of the service.

The Principal Software Engineer will enhance product features, mentor team members, and handle a variety of technical challenges within the engineering team, focusing on quality and performance.

Join Reedsy to develop and improve a collaborative word processor, adding features and ensuring performance and security for users.

As a Staff Software Engineer, you will develop scalable software solutions, provide technical leadership, conduct code reviews, mentor engineers, and ensure operational excellence and innovation in the software development process.

The Staff Software Engineer designs and develops payment processing solutions, mentors team members, improves software methodologies, and collaborates on product delivery.

The Senior Software Engineer ensures the reliability and performance of the Mural editor, collaborates on technical projects, and designs APIs for real-time collaboration. Responsibilities include product engineering, mentoring, and improving team processes while focusing on performance and developer experience.

The role involves designing, developing, and maintaining high-throughput systems for the billing platform, collaborating with teams, leading technical discussions, and mentoring other engineers.

As a Senior Software Engineer, you will collaborate to build and maintain Co-op applications, develop APIs, coach colleagues, and resolve technical challenges.

This role involves designing, implementing, and maintaining the VERA engine core and its ecosystem, focusing on production-grade stream processing and system-level software development.

As a Software Development Engineer II, you will develop and maintain web services for navigation solutions, ensuring reliability and performance while collaborating with the team.

The role involves developing scalable backend services, AI-enabled tools for marketers, and ensuring collaboration in real-time in a remote setting.