belfast, antrim, United Kingdom Hybrid / WFH Options
Tyk
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, distributedsystems, 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 distributedsystems 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 ❯
belfast, antrim, United Kingdom Hybrid / WFH Options
Few&Far
Product Development What You’ll Do Design, develop, and maintain performant services in Go, playing a key role in designing and building real-time, distributedsystems 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 distributedsystems , 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 ❯
belfast, antrim, United Kingdom Hybrid / WFH Options
Oliver Bernard
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 distributedsystems 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 ❯
belfast, antrim, United Kingdom Hybrid / WFH Options
SR2 | Socially Responsible Recruitment | Certified B Corporation™
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, distributedsystems, and microservice architectures. Comfortable working with LLMs, model fine-tuning, and building features powered by generative AI. Experience setting up CI/ More ❯
belfast, antrim, United Kingdom Hybrid / WFH Options
CPS Group (UK) Limited
DB. Extensive experience designing and delivering APIs, microservices, and event-driven systems. Skilled in architectural best practices such as domain-driven design, CQRS, and distributedsystems thinking. Strong understanding of CI/CD, containerisation, and cloud-native infrastructure. Familiarity with frontend architecture (Angular or similar) and its integration More ❯
belfast, antrim, United Kingdom Hybrid / WFH Options
WeDo
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 distributedsystems 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 ❯
belfast, antrim, United Kingdom Hybrid / WFH Options
Chattermill
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 distributedsystems, experience conducting load and disaster recovery testing Experience designing and building applications in microservice architecture 🔎 Our Hiring Process Introduce yourself – you’ll More ❯
belfast, antrim, United Kingdom Hybrid / WFH Options
eMFusion Global
Boot, Microservices) Proficiency with AWS services (Java Spark, EMR, Lambda, native AWS databases) Experience with Kubernetes and EKS Strong understanding of cloud infrastructure and distributedsystems A proactive mindset with a focus on end-to-end delivery Nice to Have Background in the Payments or FinTech industry Experience More ❯
belfast, antrim, United Kingdom Hybrid / WFH Options
Halian
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 distributedsystems challenges that directly impact millions of developers. Now is an exciting time to join us as we revolutionize how organizations deliver and More ❯
belfast, antrim, United Kingdom Hybrid / WFH Options
MBN Solutions
having raised $30m pre seed funding with a team of 10, and some truly heavyweight supporters. We’re creating a platform for multi agent systems to work seamlessly with each other. We’re taking the latest research in Agentic AI and distributedsystems to create the infrastructure More ❯
belfast, antrim, United Kingdom Hybrid / WFH Options
TRIA
Ensure integration patterns and service contracts across internal and external APIs are robust, secure, and scalable. System Integration & Platform Ownership Oversee integration between business systems using APIs, middleware, and ETL pipelines, including Salesforce, Power Platform (PowerApps, PowerAutomate, LogicApps), SharePoint, and custom web applications. Lead optimization and governance around API … cost-effective use of cloud services and performance optimization across environments. Ensure cloud architectures support observability, fault tolerance, and high availability. Data Engineering & Intelligent Systems Guide the engineering team in data modelling, data access patterns, and efficient use of databases (MSSQL, PostgreSQL, MySQL). Work with data engineers to … enable secure, efficient data movement between systems, including real-time and batch processing pipelines. Support analytics and reporting needs through the engineering of clean, reliable data sources and APIs. Security Engineering & Governance Partner with security engineers to integrate security throughout the software lifecycle (shift-left security, secure coding, threat More ❯
belfast, antrim, United Kingdom Hybrid / WFH Options
IVC Evidensia
leader—shaping architecture, mentoring teams, and driving large-scale engineering initiatives. You'll work across multiple product teams to create scalable, secure, and meaningful systems that support veterinary professionals and pet owners worldwide. 🔧 What You’ll Do Set technical direction and provide architectural guidance across multiple teams. Champion best … delivery of impactful cross-team technical initiatives. 🌟 What You Bring Hands-on software development experience. Deep expertise in .NET/C#, AWS, microservices, and distributed systems. Strong leadership and mentoring skills. Proficiency with messaging systems (SNS/SQS, Kafka), CI/CD, and container orchestration (EKS/Kubernetes … . Passion for craftsmanship and engineering excellence. Bonus if you have experience in healthcare/clinical systems, semantic search, or front-end technologies like React/Next.js. 💡 What We Offer Remote-first culture with access to offices in London and Bristol. 5 weeks' vacation + bank holidays, private healthcare More ❯
for a markets-wide strategic risk management platform. We're looking for skilled Java Developers to enhance our platform and integrate it with trading systems across markets. Role Overview/What You'll Do Collaborate with management to integrate functions and identify system enhancements. Solve critical issues by evaluating … analysts. Key Skills and Experience Required Extensive Core Java experience with strong knowledge of data structures, design patterns, and SOLID principles. Experience with messaging systems like Kafka and Solace. Proficiency in Spring framework and cloud technologies (Docker/Kubernetes/OpenShift). Familiarity with Jira, Bitbucket, and Gradle. Experience … with document databases (MongoDB). Experience developing multi-threaded, distributed systems. Experience with testing frameworks like JUnit and Cucumber. Solid understanding of the FIX protocol. Beneficial Skills and Experience Experience with Chronicle framework or low-latency programming. Experience with time-series databases like KDB. Experience with Equities trading OMS. More ❯
belfast, antrim, United Kingdom Hybrid / WFH Options
Solas IT Recruitment
Solidity . Blockchain Integration : Integrate blockchain technology into web and backend systems. Full-Stack Development : Build and maintain scalable front-end and back-end systems using Node.js and React (or other JavaScript frameworks). Performance Optimization : Optimize applications for speed, scalability, and user experience. Collaborative Development : Work closely with … proficiency in Node.js and React (or similar JavaScript frameworks). Experience building RESTful APIs and web applications. Solid understanding of data structures, algorithms, and distributed systems. Experience with software development best practices, including version control (Git). Preferred Skills : Proficiency in C# , Go , or Rust . Familiarity with Layer More ❯
belfast, antrim, United Kingdom Hybrid / WFH Options
Pipped
leading teams of 15 + (ideally 30 +) in fast-paced SaaS or tech environments. Technical breadth – Sound understanding of modern software development and distributed system architecture (hands-on coding not required). Familiarity with PHP, Python, React and AWS is advantageous. People focus – Proven ability to coach, motivate … and retain high-performing, cross-functional and distributed teams. Commercial mindset – Comfortable balancing technical trade-offs with business priorities and communicating at C-suite level. Operational rigour – Track record of introducing scalable processes, metrics and best-practice engineering standards. Bonus points for: exposure to event-tech or similar real More ❯