18 of 18 API Design Jobs in Belfast

Glance Mid-level Data Engineer role within a growing enterprise data lake platform team Core stack: AWS, TypeScript, Python, with ETL/ELT and API design Hybrid working, Belfast Salary up to £45,000 Genuine end-to-end scope: ingestion, egress, API design and React frontend … maintaining ETL/ELT ingestion and egress patterns that reduce manual bottlenecks and free up engineering time for higher-value work. You'll design and implement APIs, contribute to React frontend work, collaborate closely on AWS cloud architecture, and help instrument the platform with strong observability. You'll also ...

word matters here. The team is not looking for a backend engineer who occasionally touches the frontend, or a React specialist who makes small API changes. You will be expected to take a problem from initial product discussion and technical design through frontend, backend, cloud infrastructure, testing … which makes this an interesting opportunity for engineers who are already working this way and want an environment that actively encourages it. Key Responsibilities Design, build and operate production software end to end, owning both frontend and backend from initial design through to deployment Build sophisticated React ...

Director Data & Analytics API Experience - Data ServicesSkip to main contentBy clicking “Accept All Cookies,” you agree to the storing of cookies on your device to enhance site navigation, analyze site usage, and assist in our marketing efforts.# CareersDirector Data & Analytics API Experience - Data Services page is loaded## Director … Data & Analytics API Experience - Data ServicesApplylocations: Belfast - Millennium Housetime type: Full timeposted on: Posted Todayjob requisition id: 34591**Director Data & Analytics API Experience - Data Services****Background:**CME Group runs some of the world’s largest and most important trading venues, including derivatives exchanges, FX/FI platforms. ...

Director Data & Analytics API Experience - Data ServicesBackground:CME Group runs some of the world’s largest and most important trading venues, including derivatives exchanges, FX/FI platforms. The trading participants include leading investment banks, hedge funds, proprietary trading firms, investment managers, and retail traders, as well as additional … stakeholders such as independent software vendors (ISVs) and data redistributors. To support our unique data and analytics products, we are now building a unified API-first distribution framework, simplifying consumption and value extraction.The Role:We are seeking a key stakeholder for the CMEG External Data-Analytics (DA) APIs ...

Role As a Senior Full-Stack Software Engineer, you will work within a cross-functional team of engineers, product managers and designers to design and build core platform capabilities, with particular focus on authentication, authorisation and auditing. You will move comfortably across the stack, from React front ends … mechanisms that other engineering teams build on top of. You will have real autonomy over how problems get solved, work directly with product and design to take ideas from concept to delivery, and help shape engineering standards as the platform scales. This role suits someone who enjoys hard distributed ...

agile delivery methodology to ensure timely and high-quality delivery of software applications.Technical Ownership: Take technical ownership of a product or software solution, covering design, estimation, shaping, and user story/requirement creation.Solution Documentation: Document solutions, including architecture, configuration, release, and support handover.Stakeholder Collaboration: Collaborate and liaise with other … coding best practices and modern architectural patterns, including microservices and message-driven architectures.Non-Functional Requirements: Experience developing applications with non-functional requirements in mind.Application Design: Experience in application/digital services design.Software Engineering Practices: Proficiency in software engineering practices like code reviews, CI/CD pipelines, and SOLID/ ...

core of real world field operations. This role is ideal for backend engineers who enjoy working deeply in Python and care about system design, data flow, and performance. You will help design and evolve backend services where reliability, scalability, and operational clarity matter. The team values clean architecture … thoughtful problem solving, and engineers who want real ownership over how systems are built and improved. What You Will Be Doing Design and develop backend services in Python to support large scale operational workflows. Work closely with product teams to break down complex requirements and shape technical solutions. Build ...

Kotlin and Java on the AWS Cloud platform, following best practice. In addition to Kotlin, this project utilises Typescript/Node.js using the GOV.UK Design System. Kubernetes and Docker to schedule and run services hosted on AWS Cloud. You’ll join a Scrum Team of cross-functional skills working … including microservices and message-driven architectures NFR/Non-Functional requirement understanding and experience developing applications with this in mind Application/Digital Services Design experience Experience in software engineering practices like Code Reviews, CI/CD Pipelines and SOLID/DRY principals Hands-on developing/coding role ...

across the organisation to build scalable developer platforms, influence engineering strategy and drive the adoption of Generative AI and modern engineering practices.Key ResponsibilitiesDrive the design and delivery of enterprise-scale applications supporting critical business functions and large user populations.Remain hands-on with software architecture, system design, code reviews … using Kubernetes, containers, microservices and event-driven architectures.Strong understanding of distributed systems, resiliency patterns, scalability and performance engineering.Strong knowledge of SQL and NoSQL technologies, API design and integration patterns.Excellent communication and stakeholder management skills with the ability to influence technology decisions across numerous teams and organisations.Growth mindset with ...

organisation to build scalable developer platforms, influence engineering strategy and drive the adoption of Generative AI and modern engineering practices. Key Responsibilities Drive the design and delivery of enterprise-scale applications supporting critical business functions and large user populations. Remain hands-on with software architecture, system design, code … containers, microservices and event-driven architectures. Strong understanding of distributed systems, resiliency patterns, scalability and performance engineering. Strong knowledge of SQL and NoSQL technologies, API design and integration patterns. Excellent communication and stakeholder management skills with the ability to influence technology decisions across numerous teams and organisations. Growth ...

Greenfield build – no legacy codebase Cloud-native tech stack (Java, Spring Boot, AWS, GitHub Actions, Jenkins) Regulatory focus (MiFID II, EMIR, SFTR, etc.) Responsibilities Design and implement scalable, cloud-native backend components using Java and Spring Boot Collaborate with cross-functional teams to deliver features supporting transaction reporting … post-trade transparency, and venue/instrument data flows Translate regulatory requirements into robust, auditable technical solutions Participate in Agile ceremonies and contribute to design, development, testing, and documentation Write unit, integration, and functional tests; support automated test pipelines Deploy services in AWS and contribute to CI/ ...

Instil Software Ltd is seeking experienced Senior Software Engineers to design, build, and operate scalable cloud-native solutions using Java, Python, C#/.NET and TypeScript. You’ll influence architecture, drive API design, and guide production deployments across AWS, Azure, or GCP. You’ll work with cross ...

integrate AI/ML solutions - model integration, evaluation, prompt engineering, and RAG pipelines - using Azure AI services (Azure OpenAI, Microsoft Foundry, Cognitive Services) Design and develop across the full stack, from API design and data pipelines through to front-end integration Coach, mentor, and support the development ...

engineers, architects and product leaders, driving architecture, scalability and engineering standards across multiple teams in a modern cloud-native environment. Key Responsibilities Lead the design and development of large-scale Python systems Influence architecture and define long-term technical strategy Build and scale distributed, event-driven services Collaborate with … global platforms Person We Are Looking For Extensive commercial Python experience at senior, principal or staff level Strong background in distributed systems, microservices and API design Experience building and operating cloud-native systems (AWS preferred) Solid understanding of CI/CD, observability and modern engineering practices Proven ability ...

cloud-based data platform. This is a hands-on role focused on designing, building, and improving data pipelines and services, while also contributing to API design and occasional frontend work where needed. You’ll work across the stack, primarily in Python and AWS, helping to deliver reliable, well … data through APIs, and supporting a platform that removes bottlenecks and enables better use of data across the organisation. What You’ll Be Doing Design, build, and maintain ETL/ELT pipelines in production environments Develop ingestion and egress patterns to support reliable data access and integration Work with ...

modern CI/CD approach, deploying multiple times per day, and we support a global set of customers who are engineers like us.Key ResponsibilitiesBuild: Design, implement, and ship the provenance ingestion service — capable of accepting provenance and attestation payloads from CI/CD systems, public registries, signed bundles … Experience designing pipelines that handle varied, schema-evolving, high-volume payloads reliably and at scale — including robust error handling and observability.Data Modelling: Ability to design storage schemas that efficiently represent signed metadata envelopes, artefact graphs, and queryable relationships. API Design: Experience building and versioning APIs consumed ...

large scale, media heavy applications. You will shape the user experience behind complex, data heavy workflows, working closely with backend engineers, product and design to deliver React applications that balance performance, usability and maintainability across mission critical systems. The career value is in the complexity and the domain. … will be working across the full stack - complex data heavy interfaces, real time Node.js services, AI integrated tooling, type safe API design with tRPC spanning frontend and backend - in an environment where performance and reliability are non-negotiable. That combination of technical depth and meaningful domain is rare ...

About the Role We are building a new engineering team for a global tier-1 financial institution to strengthen its deployment security platform.You will design and build backend microservices (Java 17+, Spring Boot) that secure internal software delivery pipelines—automating vulnerability detection, policy enforcement, and secrets management at enterprise … scale. This is a long-term, multi-year program. You will work in a high-autonomy squad alongside SREs and DevOps engineers. Key Responsibilities Design, develop, and optimize resilient microservices using Java 17+ and Spring Boot. Deploy and manage applications on Kubernetes (OpenShift) in AWS cloud environments. Build integrations ...