Top Software Engineer Jobs in Belfast

Design and develop clean, maintainable software for automated document-processing products. Collaborate with business stakeholders to translate requirements into product improvements, conduct code reviews, guide technical direction, mentor colleagues, and improve engineering practices. The role uses Golang, MySQL, Docker, Kubernetes, cloud infrastructure, and GitHub CI/CD while emphasizing product ownership, clean architecture, software craftsmanship, and technical communication.

Build and own React Native features for Kraken’s consumer mobile app, from product discovery through launch, measurement, and iteration. Partner with Product and Design to create responsive, trustworthy financial experiences using dynamic or real-time data. Guide development for a new Asian-market app, including regional UX, connectivity restrictions, vendors, and telemetry. Contribute to architecture, performance, reliability, code reviews, and product engineering standards.

Owns the technical vision and roadmap for organization-wide CI/CD and release infrastructure. Identifies and remediates performance bottlenecks and supply-chain security risks, designs scalable release gates, directs engineers through complex multi-quarter projects, and leads incident response. The role requires hands-on debugging across the pipeline stack, cross-organizational influence, technical communication, mentorship, code and design reviews, and setting engineering standards.

Design and maintain scalable backend systems using Kotlin and Spring Boot. Lead architecture and technical design, develop secure REST APIs, improve engineering quality through testing and automation, and guide delivery across multiple initiatives. Mentor engineers, collaborate with clients and cross-functional teams, evaluate emerging technologies and AI capabilities, and promote resilient, maintainable software practices.

Lead design, development and maintenance of scalable, secure international pricing platforms and integrations. Provide technical leadership, conduct code reviews, champion DevSecOps and automated testing, mentor engineers, and drive observability, incident management and operational excellence across cloud-native systems.

As a Staff Software Engineer, you will develop robust software solutions, provide technical leadership, mentor engineers, and innovate within the commercial trading domain.

Designs, builds, and improves Mural’s Canvas platform, including real-time collaboration, shared document editing, spatial interactions, rendering performance, asset management, APIs, and AI-enabled capabilities. Owns initiatives from problem definition through measurement, designs scalable and reliable systems, optimizes performance, and contributes to technical reviews, mentoring, documentation, and engineering practices. Partners with Product, Design, and Engineering to deliver maintainable, high-quality editor experiences.

Designs, develops, deploys, tests, and reviews software applications, features, and defect fixes. Collaborates with team leaders and users to support a product roadmap, analyze requirements, document software, provide developer-level support, and learn existing codebases. The role also involves participating in planning meetings, conferences, and occasional team travel.

Leads client-facing delivery of complex Canton Network and Daml-based financial solutions. Advises enterprise clients on architecture, topology, integrations, performance, and Kubernetes onboarding. Provides technical leadership across pre-sales, requirements, solution design, implementation, and software delivery. Coordinates cross-functional initiatives, estimates complex solutions, develops performance strategies, customizes Helm charts, and serves as a subject-matter expert for Canton Network products and other CX engineers.

Lead the development, testing, debugging, and technical design of scalable backend systems, integrations, and cloud applications. Establish engineering standards through code reviews, automated testing, DevSecOps, observability, incident management, and operational excellence. Partner with architects, product managers, business stakeholders, and external partners to deliver commercial planning solutions. Mentor engineers, provide technical guidance, and evaluate emerging technologies and AI-enabled development practices.

Build and operate backend pricing systems for real energy contracts. Responsibilities include designing the Pricing API, consolidating pricing logic, improving quote speed, implementing error handling and observability, creating alerting, explaining pricing failures, and supporting live incidents. The role requires production Python backend experience, FastAPI, SQL, data-heavy systems, end-to-end project ownership, and AI-assisted development workflows.

Design, develop, test, and maintain scalable backend services and APIs for Agent Studio. Build orchestration, configuration, integrations, deployment, lifecycle, authentication, authorization, observability, and runtime management capabilities. Collaborate with frontend, AI/ML, product, UX, DevOps, and platform teams to deliver reliable, secure, high-performance services. Troubleshoot complex production issues and contribute to technical designs, code reviews, testing, and continuous engineering improvements.

Join the International Accelerator full-stack team to design, build, and operate Direct-to-Consumer products across international markets. Break projects into tasks, collaborate with PM/design/analytics, build and monitor APIs and web apps, support on-call and availability, participate in hiring and team growth, and write clear, well-tested, maintainable code.

Develop backend software in C# .NET within an agile delivery team. Responsibilities include system design, coding, technical documentation, automated testing, collaboration with product managers and test engineers, and maintaining high-quality mission-critical software. The role is remote with occasional travel and supports a UK emergency call-taking and dispatch platform.

Build and scale Base360.ai’s short-term rental platform, including customer-facing applications, APIs, automation engines, AI-powered workflows, third-party integrations, and cloud infrastructure. Develop systems for reservations, pricing, payments, guest communication, property operations, reporting, and financial workflows. Own projects end to end, make architectural decisions, ensure reliability, and deliver scalable products in a remote-first startup environment.

Architect and deliver resilient, high-performance cloud services for SailPoint’s identity platform using Golang and Angular. Design synchronous and event-driven microservices, build scalable SaaS features, improve performance and reliability, conduct architecture and code reviews, and mentor engineers. The role includes collaboration with product and architecture teams, participation in a 24x7 on-call rotation, and leadership across Policy Engine and agentic identity initiatives.

Lead full-stack engineering initiatives across architecture, development, testing, reliability, performance, and security. Provide technical leadership, establish coding standards, conduct code reviews, mentor engineers, champion AI-assisted development, resolve complex technical issues, and partner with Product Management to deliver solutions within a .NET-based environment.

Contract software engineering role for a remote Europe-based engineer building scalable, resilient backend products with client teams. Responsibilities include backend development in Go, API and SaaS platform development, cloud infrastructure, distributed systems, containerized deployment with Docker and Kubernetes, testing with TDD, and performance optimization. The role also involves technical communication, collaborative problem-solving, and thoughtful use of AI tools.

Lead quality engineering for membership and loyalty capabilities, designing and executing functional, integration, API, contract, automation, and end-to-end tests. Build reliable test suites, validate loyalty points and personalized recommendations, manage test data, ensure cross-browser and cross-device quality, define testing strategies, and improve coverage using AI-assisted tools. Collaborate with engineering and product teams throughout the software development lifecycle while leading quality engineers in the loyalty and personalization area.

Build and optimize high-performance Elixir/Phoenix backend systems with PostgreSQL at scale. Design efficient schemas, queries, indexes, batching strategies, migrations, and concurrency patterns. Diagnose database bottlenecks, support large document volumes, and improve reliability across cloud and self-hosted deployments. Contribute to AI-assisted engineering workflows, platform architecture, tooling, and customer success while collaborating with a remote-first team.

Develop and support scalable Java and Spring Boot backend microservices powering omnichannel inventory availability, order promising, allocation, fulfilment, and post-purchase experiences. Build event-driven processing with Kafka, integrate OMS, WMS, ERP, commerce, and fulfilment platforms, and ensure services are secure, observable, reliable, and performant. Own features from design through production, write tested code, participate in reviews, troubleshoot production issues, and improve operational efficiency.

Designs, automates, and executes functional, integration, API, contract, regression, concurrency, and performance tests for inventory, order promising, sourcing, and fulfillment platforms. Investigates defects, validates fixes, maintains regression coverage, integrates quality tests into CI/CD pipelines, and supports release readiness. The role collaborates with product and engineering teams to validate distributed commerce systems, integrations, business rules, data consistency, scalability, resilience, and consumer-impacting workflows.

Set long-term technical strategy for backend identity systems, lead major distributed-system initiatives, ensure operational availability, establish engineering quality standards, collaborate cross-functionally, and mentor engineers. Build and launch highly available systems supporting international expansion, KYC verification, identity data management, decisioning, regulatory compliance, and global risk models.

Design and build distributed systems for a high-performance CI/CD execution platform. Responsibilities include orchestrating Supabase Branch lifecycle operations, provisioning ephemeral sandboxed environments on AWS, scheduling concurrent builds, optimizing pipelines through caching and artifact reuse, handling retries and failures, instrumenting observability, and developing configuration and infrastructure integrations. The role requires strong Go and TypeScript skills, cloud infrastructure experience, and a production operations mindset.

Build and operate high-performance backend systems and distributed services using Elixir and Phoenix. Design declarative infrastructure with Terraform, Terramate, FluxCD, Kubernetes, and Helm; manage AWS cloud workloads, cluster upgrades, GitOps workflows, observability, and databases. Collaborate with a remote engineering team on architecture, product development, debugging, reliability, and customer success.