1 to 25 of 36 Permanent Distributed Systems Jobs in Belfast

helping to drive the connected world and power new products and services. We’re changing the way that organisations connect any number of their systems and services.Whether internal, external, public or highly encrypted systems, Tyk helps businesses drive value across the retail, finance, telecoms, healthcare, or media industries … quality, efficient solutions, while championing continuous improvement across our software engineering lifecycle. As a Senior Go Developer you will be passionate about backend development, distributed systems, and driving engineering excellence. Here’s what you’ll be responsible for: Technical Leadership Lead solution design for medium and high-complexity … problems, adhering to established design principles. Design distributed systems with security-first principles, ensuring no security defects or production leakage. Contribute to the direction of API Gateway architecture and dashboard API functionality. Build and extend API Gateway capabilities, including complex traffic routing, security, rate limiting, mTLS, authentication, and More ❯

well as conduct personnel duties for team. Lead resources and serve as a technical SME across the project through advanced knowledge of data structures, distributed systems, use of knowledge and experience to lead, architect, and drive broader adoption forward. Utilize in-depth knowledge and skills across multiple Applications … Development areas to provide technical oversight across systems and applications. Review and analyze proposed technical solutions for projects. Contribute to formulation of strategies for applications development and other functional areas. Basic Qualifications Hands-on professional software development experience Proficiency in programming in Java, Python, JavaScript or Angular Experience of … building RESTful APIs using popular frameworks like Spring Experience of working with event driven systems, microservices, micro-frontend UIs Experience of following TDD and clean code principles Proficiency with data structures, algorithms and SQL Bachelor's degree in computer science or engineering field involving software programming or systems More ❯

Product Development What You’ll Do Design, develop, and maintain performant services in Go, playing a key role in designing and building real-time, distributed systems that scale effortlessly and perform reliably under high load. Collaborate with Founders and the Frontend Engineering team to define, design, and ship … new features Ensure systems are scalable, resilient, and secure Work with cloud infrastructure, containerisation (Docker, Kubernetes), and CI/CD pipelines Take part in code reviews, architecture discussions, and performance tuning What We’re Looking For A Bachelor’s degree (or higher) in Computer Science or a closely related … field 4+ years experience building scalable, high-performance, real-time applications Strong programming skills in Go (Golang) Solid understanding of distributed systems , microservices architecture , and event-driven design Experience working with cloud platforms (e.g., AWS, GCP, Azure) Familiarity with monitoring, logging, and observability tools Bonus Points For Contributions More ❯

the next generation of financial infrastructure technology. The position involves building core services, enhancing platform components, and contributing to the development of robust, scalable systems capable of supporting global operations. Candidate Profile: Ideal candidates will possess strong analytical and problem-solving abilities, with a track record of delivering high … quality software in complex environments. Experience with distributed systems and ownership of the full development lifecycle—from design through deployment and monitoring—is essential. Senior Engineers will also be expected to provide mentorship and technical leadership within their teams. Key Requirements: Professional experience with C# (.NET) Expertise in … in Azure cloud services (e.g. Azure SQL, Cosmos DB, Functions, Container Apps) Experience with microservices, event-driven architectures, and automated testing Familiarity with messaging systems such as Azure Service Bus, Event Grid, or Event Hub Practical experience with Infrastructure as Code tools like Terraform and Bicep Excellent communication skills More ❯

server-side C# engineer to join their lean, senior-led engineering team—working on a platform that’s pushing boundaries in event-driven architecture, distributed systems, and customer-first delivery. 👨‍💻 What You’ll Work On: A greenfield microservices platform (24+ services) built around CQRS , Event Sourcing , and DDD … High throughput transactional systems processing tens of thousands of requests per hour Real-time tracking and customer self-service layers designed to minimise support tickets A technically mature, agile team where every developer contributes to architectural direction 🧪 Tech Snapshot (and What You Must Know Cold): C#/.NET … Service Bus, Kafka, etc.) Infrastructure : Docker, Kubernetes, CI/CD pipelines, cloud-native best practices 🧩 What You'll Bring: Proven experience delivering high-performance distributed systems A test-first, craft-focused engineering mindset Strong architectural instincts with a collaborative, debate-positive attitude Comfort with modern engineering workflows and More ❯

scaling models—it’s about rethinking how AI workloads are executed at speed and scale. You’ll lead the design and implementation of software systems that run distributed, low-latency inference across clusters. You’ll work closely with hardware and ML teams to optimise every layer of the … stack—from model representation and execution to data movement and scheduling. Whether it’s through compiler techniques, systems-level tuning, or custom runtime design, you’ll play a critical role in shaping the performance layer of our AI platform. This is a role for engineers who think in microseconds … worked in HFT, large-scale scientific compute, or AI infrastructure at serious scale, we’d love to talk. Responsibilities Design and build high-performance systems for running AI/ML workloads across distributed compute clusters Optimise for ultra-low latency and real-time inference at scale—profiling, tuning More ❯

Java Engineer – Cloud (GCP or AWS) | Scalable Systems | Product Environment Are you a Java engineer who thrives on building scalable, cloud-native systems? Want to make a tangible impact on modern product development in a fast-moving team? My client is looking for a Java Engineer with strong … experience in either Google Cloud Platform (GCP) or Amazon Web Services (AWS) to join their high-performing engineering team. You’ll be developing robust, distributed systems and contributing to cloud infrastructure in a product-focused environment. Key Responsibilities: Design, develop, and deploy high-performance backend services using Java. … as-code tools (e.g., Terraform, CloudFormation). Desirable: Experience with Spring Boot or other modern Java frameworks. Exposure to event-driven architecture or messaging systems (Kafka, Pub/Sub). Familiarity with Kubernetes and cloud security best practices. Why Join? Work with modern cloud technologies on real-world, user More ❯

focused on hands-on coding rather than management or other hands-off responsibilities. You’ll architect and build reliable and scalable AI/ML systems, laying the groundwork for a new, dedicated team focused on intelligent product capabilities. With a focus on applied machine learning, generative AI, and cloud … ML Project Ownership Lead the delivery of machine learning initiatives from exploration through to deployment and monitoring. Own the full development cycle for ML systems — including architecture, data pipelines, model training, and production deployment. Cross-functional Collaboration Work closely with Product, Engineering, and DevOps teams to embed intelligent features … engineering, and automation. Experience working with AWS (e.g., SageMaker, Bedrock) and infrastructure-as-code tools like Terraform. Solid understanding of large-scale data pipelines, distributed systems, and microservice architectures. Comfortable working with LLMs, model fine-tuning, and building features powered by generative AI. Experience setting up CI/ More ❯

excellent communication skills and can manage multiple priorities simultaneously. Basic Qualifications Bachelor's degree in computer science or engineering field involving software programming or systems engineering Hands-on professional software development experience Proficiency in programming in Java, Python, JavaScript or React Hands on experience of building RESTful APIs using … rapidly changing environment Preferred Qualifications Experience of working in investment bank or financial services industry Experience of using cloud services such as AWS and distributed systems such as Kafka, Kubernetes, S3, DynamoDB, MongoDB or any other NoSQL database More ❯

excellent communication skills and can manage multiple priorities simultaneously. Basic Qualifications Bachelor's degree in computer science or engineering field involving software programming or systems engineering Hands-on professional software development experience Proficiency in programming in Java, Python, JavaScript or React Hands on experience of building RESTful APIs using … rapidly changing environment Preferred Qualifications Experience of working in investment bank or financial services industry Experience of using cloud services such as AWS and distributed systems such as Kafka, Kubernetes, S3, DynamoDB, MongoDB or any other NoSQL database Job Family Group: Technology Job Family: Applications Development Time Type More ❯

Senior Java Engineer – Core Java, Algo, Distributed Systems Location: Belfast – 2/3 days per week needs to be possible (only considering candidates in NI) Type: Contract Industry: Investment Banking Duration: ASAP – long term (12 months to start with extensions) We’re seeking Senior/Lead Java Engineers … to join a team building high-performance systems that support trading across Equity Swaps, Delta One, and Prime Brokerage. While low-latency expertise is not essential, a deep command of Core Java and algorithmic/data structure proficiency is critical to succeed in this complex and performance-sensitive environment. … Key Responsibilities: Design and enhance trading engines for derivatives and structured financial products. Build scalable systems to support high-volume operations (100s of TBs of data). Refactor and decouple legacy components, with a focus on MongoDB and modern relational DBs like PostgreSQL . Drive cloud readiness, adopt microservices More ❯

microservice architecture. Strong experience w ith AWS EKS and containerized environments (Docker, Kubernetes). Proficiency with Postgr eS QL, R edis, and message queue systems (e.g., RabbitMQ, Kafka). Deep understanding of API design and best practices (REST, gRPC). Experience with CI/CD pipelines, monitoring tools (e.g. … Prometheus, Grafana), and logging systems (e.g., ELK stack).Strong problem-solving, organizational, and communication ski lls. Prefe rred: Experience with distributed systems, event-driven architectures, and CQRS/ES patterns. Familiarity with caching strategies, data partitioning, and performance tuning for large-scale systems. Knowledge of DevSecOps practices … and implementing security at scale. Background in scaling backend systems to support millions of users. Familiarity with infrastructure-as-code tools (e.g., Terraf orm). Compens ation This is an equity-only position, offering a unique opportunity to gain a stake in a rapidly growing company and contribute directly More ❯

Boot. Experience with containerisation (Docker), orchestration (Kubernetes) and cloud platforms (we use Microsoft Azure!). Knowledge of different architectural patterns. Working experience with scalable distributed systems. An insatiable curiosity about software engineering and technology. Demonstrated leadership abilities, with a passion for coaching and mentoring less-experienced developers. A strong More ❯

tasked with multiple projects building full stack development of real-time transactional services, REST services API and Container based services that are highly functional, distributed, secure, scalable and resilient. We believe in self managing Agile teams who build products end to end focusing on unit testing, code reviews and … will be decided based on team needs and determined in partnership with senior leadership. Minimum Requirements Bachelor's degree in Computer Science, Computer Information Systems, Computer Engineering, or related field, and 1 year work experience in the job offered or in a computer-related occupation. Experience in more of … in card industry or fintech delivering solutions in fraud, risk or payments space will be added advantage. Experience in developing large scale, enterprise class distributed systems of high availability, low latency, & strong data consistency. Experience developing instrumentation for software components, to help facilitate real-time and remote troubleshooting More ❯

strong software engineering fundamentals (OO design, test-driven development, unit testing, code reuse, code reviews) as well as hands-on experience with highly scalable distributed systems across the full software lifecycle (design, build, test, deploy, support). We love people who are willing to explore new areas, learn More ❯

Product mindset, you think in terms of outcomes, not just features Comfortable in fast-paced, early-stage startup environments Experience in building microservices and distributed systems Strong communicator with a collaborative, solution-focused approach Bonus Experience Exposure to LLM APIs, AI tooling, or NLP-powered applications Knowledge of … Next.js or modern frontend architecture Infrastructure-as-Code (CDK, Terraform, etc.) Experience in customer support tech or event-driven systems Python scripting or backend services alongside JS stack What’s on Offer 💸 Compensation & Perks Salary: £85k–£120k DOE Equity or stock grants Learning and AI tooling budgets (Perplexity Pro More ❯

a contract basis. This company is renowned for its engineering excellence, and they're looking for a Senior Backend Engineer who can take their distributed systems to the next level. As a Senior Backend Engineer, you'll be working on mission-critical, data-intensive applications that push the … reviews, design discussions, and knowledge sharing. Senior Backend Engineer (Go) - Key Requirements: Significant professional experience in software development, with a strong focus on backend systems Proficiency in Go/Golang and proven expertise in AWS, Kubernetes, and Docker Experience with end-to-end software engineering, including system design and More ❯

DB. Extensive experience designing and delivering APIs, microservices, and event-driven systems. Skilled in architectural best practices such as domain-driven design, CQRS, and distributed systems thinking. Strong understanding of CI/CD, containerisation, and cloud-native infrastructure. Familiarity with frontend architecture (Angular or similar) and its integration More ❯

Lead and develop a high-performing backend engineering team with a focus on collaboration, mentorship, and technical excellence Own backend architecture and strategy, ensuring systems are scalable, reliable, and secure Play a hands-on role in development, especially in Java (ideally with Quarkus/GraalVM, or SpringBoot as an … quality, testing, and maintainability What we’re looking for: 10+ years in software engineering, with 7+ years in backend Java development Strong experience building distributed systems and microservices Proven leadership of engineering teams with the ability to coach, delegate, and develop others Hands-on expertise in Java, with … a strong preference for Quarkus or GraalVM; SpringBoot experience also considered Familiarity with messaging systems such as Pub/Sub, Kafka, or RabbitMQ Strong understanding of REST API design, CI/CD practices, and Agile methodologies Experience in fintech, payments, or banking domains Who this suits: Someone who is More ❯

love to have you on board! The Search Quality team is looking for a data-oriented backend engineer to build and improve our internal systems to better support prototyping, testing, and scaling the next generation of Search with us. You'll be working closely with engineers on multiple teams … backend platforms to support prototyping, testing, and scaling our Search systems. Work closely with product-focused backend engineers on the team to build efficient systems for Search Annotations, Recall, and LLM-backed search experiences in general. Team up with other engineering groups, such as Ads and Market Engineering, to … build cohesive backend systems that support our shared visions. Contribute to our next gen, smarter search roadmap, vision, and execution. What it takes to succeed: Fluency in an object-oriented language (like Python or Java) Experience with databases (SQL and NoSQL), Unix, developing within a Continuous Integration/Deployment More ❯

in peer code review Be involved in all steps of development, including design, architecture, implementation, automated tests development, and monitoring the health of the systems in production Work in a multi-functional team to exceed our customers' expectations 🧰 What you’ll need: Strong experience working with Ruby Good CS … native applications Practical experience with Kubernetes and ability to write specs for k8s objects for your apps Experience finding and fixing bottlenecks in complex distributed systems, experience conducting load and disaster recovery testing Experience designing and building applications in microservice architecture 🔎 Our Hiring Process Introduce yourself – you’ll More ❯

Boot, Microservices) Proficiency with AWS services (Java Spark, EMR, Lambda, native AWS databases) Experience with Kubernetes and EKS Strong understanding of cloud infrastructure and distributed systems A proactive mindset with a focus on end-to-end delivery Nice to Have Background in the Payments or FinTech industry Experience More ❯

core of platform reliability and infrastructure automation within a fast-growing SaaS company. Key Responsibilities: Diagnose and resolve complex application and infrastructure issues across distributed systems. Participate in 24x7 on-call rotation, sprint planning, and SCRUM ceremonies. Perform root cause analysis (RCA) and create technical documentation and SOPs. Develop More ❯

the world's most potent artifact management platform, built by developers for developers. Our platform supports over 30 formats spanning languages, containers, and operating systems, with enterprise-grade features, including vulnerability and security scanning, world-class policy management and enforcement, and web-scale to handle the Fortune 500. Organizations … re building mission-critical infrastructure that powers software delivery for organizations worldwide. We operate at the cutting edge of cloud-native technology, tackling complex distributed systems challenges that directly impact millions of developers. Now is an exciting time to join us as we revolutionize how organizations deliver and More ❯

unlimited holiday What you’ll bring Solid commercial experience with Node.js and Typescript on large scale microservices architectures Extensive work on extremely high-traffic, distributed systems Good knowledge of Kubernetes and either Kafka or RabbitMQ Deep understanding of AWS and related tools Strong Computer Science fundamentals Happy working More ❯