Top Backend Jobs in Belfast

Design and build distributed backend services for the cloud monetization platform, focusing on correctness, consistency, scalable microservices, distributed transactions, and reliable asynchronous workflows. Influence system architecture, own service implementations, and collaborate across teams to support billing, reservations, payments, and revenue flows.

Remote junior backend developer who troubleshoots and analyzes code/data, helps design new features, records/reporting, and pursues ongoing training to stay current with best practices and languages.

Design and implement backend solutions using Umbraco and Microsoft .NET. Build back-office editors and templates, integrate RESTful APIs and third-party services, implement job search features, ensure performance, security, and test coverage, and collaborate in an Agile/Scrum team.

Design, upgrade, and maintain scalable back-end systems for a cloud-based accounting platform. Develop Java services, implement AWS solutions (CDK, Lambda), and solve complex backend challenges to deliver high-impact, globally used features.

Design, develop, deploy, and maintain backend services using Django and Python. Implement RESTful APIs, task automation with Celery, microservices integrations, CI/CD deployments, and ensure security, performance, and maintainable code while collaborating with frontend teams and stakeholders.

Develop, maintain, and optimize scalable backend services and APIs. Integrate with front-end, ensure performance, implement security, debug issues, participate in code reviews, and collaborate on engineering best practices.

Develop and maintain server-side components for Tempo's flagship Jira Cloud products using Kotlin/Java. Design scalable distributed systems and APIs, write unit/integration/performance tests, optimize performance and database queries, collaborate with product, design, QA and docs teams, and contribute to code reviews with a focus on security, UX, and maintainability.

Build fault-tolerant, reliable cloud backend services for a hyperscaling AI platform, including compute, storage, networking, managed Kubernetes, databases, billing, monitoring and ML services.

Design, build, test, release and maintain scalable software and distributed systems. Provide technical leadership on complex projects, review code, influence architecture, optimise deployment pipelines and collaborate with stakeholders to deliver reliable solutions.

Design, build, release and maintain scalable software for distributed systems. Provide technical leadership, review code, contribute to architecture, optimise deployment pipelines, and collaborate with stakeholders to deliver high-impact solutions.

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.

Build and maintain backend services and APIs powering onboarding, accounts, payments, cards, transfers, rewards, FX, KYC and risk. Design reliable, secure, observable systems for real transactions; integrate with partners, payment providers and AI services; improve operational workflows, data integrity, and incident handling while collaborating with product, frontend, mobile and AI teams.

The Backend Engineer III will collaborate with cross-functional teams to design and build parts of Monzo's banking platform using technologies like Go and Kubernetes, focusing on customer outcomes and resilient software.

The role involves leading the mk8s Core Team, managing technical projects, coaching engineers, and participating in hands-on coding and incident response.

Build and maintain high-performance, fault-tolerant distributed backend services and data pipelines for large genomic and health datasets. Design storage, indexing, and async event workflows; optimize latency, throughput, and reliability. Partner with bioinformatics and product teams to validate scientific accuracy and guard AI-driven responses.

As a Senior Python Backend Engineer at VidRush, you'll build AI-driven video production systems, ship production-level ML/LLM services, and work closely with product teams while ensuring high autonomy and delivery speed.

The backend developer will build backend software focusing on reliable APIs, ensure high-quality output, and collaborate with teams.

The Senior Back-End Developer builds and maintains server-side operations for cloud solutions, collaborating with teams to deliver software, support users, and document features.

Develop and maintain the backend ecosystem for the Alta Video Management System, focusing on cloud-based distributed systems and coding quality.

As a Software Engineer, you'll develop trading APIs and systems, enhance user experiences, and lead initiatives for blockchain support and new products.

Design, implement, and maintain scalable backend services and APIs for a live mobile game platform. Ensure performance, reliability, and uptime; collaborate with DevOps, QA, data, and product teams; mentor junior engineers; participate in incident response, testing, and technical documentation.

As a Senior Backend Engineer, you'll develop features using Python and various AWS services, focusing on AI-driven solutions for the insurance sector.

The Senior Backend Engineer will build key backend services for an observability platform, manage data pipelines, work with open-source contributors, and tackle scalable backend system design challenges.

The Senior Software Engineer will focus on backend development, designing and maintaining APIs and services, collaborating on features, and enhancing integrations at Motion.

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