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33 API jobs in County Antrim + 5 miles
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DailyPay is transforming the way people get paid. As a worktech company and the industry's leading on demand pay solution, DailyPay uses an award-winning technology platform to help America's top employers build stronger relationships with their employees. This voluntary employee benefit enables workers everywhere to feel more motivated to work harder and stay longer on the job while supporting their financial well-being outside of the workplace. DailyPay is headquartered in New York City, with operations throughout the United States as well as in Belfast. For more information, visit DailyPay's Press Center. You'll work alongside a supportive, high-impact team of skilled backend developers to improve how other teams deploy and access their services, how we move data across our platform, and how we automate operations to enable future scale.
DailyPay is transforming the way people get paid. As a worktech company and the industry's leading on demand pay solution, DailyPay uses an award-winning technology platform to help America's top employers build stronger relationships with their employees. This voluntary employee benefit enables workers everywhere to feel more motivated to work harder and stay longer on the job while supporting their financial well-being outside of the workplace. DailyPay is headquartered in New York City, with operations throughout the United States as well as in Belfast. For more information, visit DailyPay's Press Center. You'll work alongside a supportive, high-impact team of skilled backend developers to improve how other teams deploy and access their services, how we move data across our platform, and how we automate operations to enable future scale.
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Company description - We believe in the power of ingenuity to build a positive human future. As strategies, technologies, and innovation collide, we create opportunity from complexity. Our teams of interdisciplinary experts combine innovative thinking and breakthrough technologies to progress further, faster. Our clients adapt and transform, and together we achieve enduring results. We are over 4,000 strategists, innovators, designers, consultants, digital experts, scientists, engineers, and technologists. And we have deep expertise in consumer and manufacturing, defence and security, energy and utilities, financial services, government and public services, health and life sciences, and transport. Our teams operate globally from offices across the UK, Ireland, US, Nordics, and Netherlands. Bringing Ingenuity to Life. Job description
Company description - We believe in the power of ingenuity to build a positive human future. As strategies, technologies, and innovation collide, we create opportunity from complexity. Our teams of interdisciplinary experts combine innovative thinking and breakthrough technologies to progress further, faster. Our clients adapt and transform, and together we achieve enduring results. We are over 4,000 strategists, innovators, designers, consultants, digital experts, scientists, engineers, and technologists. And we have deep expertise in consumer and manufacturing, defence and security, energy and utilities, financial services, government and public services, health and life sciences, and transport. Our teams operate globally from offices across the UK, Ireland, US, Nordics, and Netherlands. Bringing Ingenuity to Life. Job description
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Company description - We believe in the power of ingenuity to build a positive human future. As strategies, technologies, and innovation collide, we create opportunity from complexity. Our teams of interdisciplinary experts combine innovative thinking and breakthrough technologies to progress further, faster. Our clients adapt and transform, and together we achieve enduring results. We are over 4,000 strategists, innovators, designers, consultants, digital experts, scientists, engineers, and technologists. And we have deep expertise in consumer and manufacturing, defence and security, energy and utilities, financial services, government and public services, health and life sciences, and transport. Our teams operate globally from offices across the UK, Ireland, US, Nordics, and Netherlands. Bringing Ingenuity to Life. Job description
Company description - We believe in the power of ingenuity to build a positive human future. As strategies, technologies, and innovation collide, we create opportunity from complexity. Our teams of interdisciplinary experts combine innovative thinking and breakthrough technologies to progress further, faster. Our clients adapt and transform, and together we achieve enduring results. We are over 4,000 strategists, innovators, designers, consultants, digital experts, scientists, engineers, and technologists. And we have deep expertise in consumer and manufacturing, defence and security, energy and utilities, financial services, government and public services, health and life sciences, and transport. Our teams operate globally from offices across the UK, Ireland, US, Nordics, and Netherlands. Bringing Ingenuity to Life. Job description
Technical Ability - Proficiency in React (including Hooks, Context API, and modern best practices). * Experience with RESTful API integration and data fetching * Experience with state management solutions (e.g., Redux, Zustand, Context API)
Technical Ability - Proficiency in React (including Hooks, Context API, and modern best practices). * Experience with RESTful API integration and data fetching * Experience with state management solutions (e.g., Redux, Zustand, Context API)
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Proficiency in API design, RESTful services, and data flows
Proficiency in API design, RESTful services, and data flows
Skilled in API design, RESTful services, and structured data workflows
Skilled in API design, RESTful services, and structured data workflows
Proven experience building robust front-end applications using React, including Hooks, Context API, and component architecture. * Strong understanding of AWS, particularly with serverless stacks (Lambda, API Gateway, DynamoDB).
Proven experience building robust front-end applications using React, including Hooks, Context API, and component architecture. * Strong understanding of AWS, particularly with serverless stacks (Lambda, API Gateway, DynamoDB).
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Java Springboot api testing
Java Springboot api testing
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IT Business Analyst (Technology Solution Analyst)
IT Business Analyst (Technology Solution Analyst)
CME Technology Support Services Ltd
Belfast, County Antrim
£ Not Disclosed
The CME Markets Technology team is looking for a Technology Solution Analyst to join the global Technology solutions and architecture team. The team is responsible for providing technical analysis that drives the evolution and growth of CME's core trade execution systems that power our electronic trading platforms CME Globex, EBS Direct and BrokerTec Stream. Our systems need to be both low latency and have high reliability while continuously delivering new features. The role will initially be focused on CME's Trade Dissemination and related systems, working in concert with the business, operations, development, and testing teams to provide creative solutions that meet the needs of our business and maintain our performance profile. This role may be suitable for an experienced Technical Analyst who has been working in a Quality Assurance role and is considering a move i
The CME Markets Technology team is looking for a Technology Solution Analyst to join the global Technology solutions and architecture team. The team is responsible for providing technical analysis that drives the evolution and growth of CME's core trade execution systems that power our electronic trading platforms CME Globex, EBS Direct and BrokerTec Stream. Our systems need to be both low latency and have high reliability while continuously delivering new features. The role will initially be focused on CME's Trade Dissemination and related systems, working in concert with the business, operations, development, and testing teams to provide creative solutions that meet the needs of our business and maintain our performance profile. This role may be suitable for an experienced Technical Analyst who has been working in a Quality Assurance role and is considering a move i
Principal Software Engineer - (Fully Remote) The Opportunity - Ocho is partnering with a fast-scaling, product-led Client to find a Principal Software Engineer to help lead the design and evolution of their new platform. You'll help design, build, and deploy the next generation of back-end systems that power their modern software ecosystem. Key Responsibilities * Collaborate closely with team members to deliver high-quality, testable, and valuable software * Take ownership of back-end services and APIs, with a focus on user-visible behaviour * Participate in deployments, support CI/CD pipelines, and assist with planning and delivery * Contribute ideas for improving processes, tooling, and architecture - Essential Experience * 8+ years C# / .Net Development experience * Experience in back-end / SaaS development * Experience with SQL databases
Principal Software Engineer - (Fully Remote) The Opportunity - Ocho is partnering with a fast-scaling, product-led Client to find a Principal Software Engineer to help lead the design and evolution of their new platform. You'll help design, build, and deploy the next generation of back-end systems that power their modern software ecosystem. Key Responsibilities * Collaborate closely with team members to deliver high-quality, testable, and valuable software * Take ownership of back-end services and APIs, with a focus on user-visible behaviour * Participate in deployments, support CI/CD pipelines, and assist with planning and delivery * Contribute ideas for improving processes, tooling, and architecture - Essential Experience * 8+ years C# / .Net Development experience * Experience in back-end / SaaS development * Experience with SQL databases
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Location: Hybrid (2/3 days per week in office) Recruitment Partner: VANRATH - Job Type: Full-time | Permanent - Industry: Financial Technology / Payments - VANRATH is proud to be recruiting on behalf of a global leader in digital payments-an organization known for delivering secure, innovative financial solutions that support billions of transactions worldwide each year. This is a rare opportunity to join a purpose-driven company where technology meets impact. You'll work alongside top-tier engineers to build infrastructure that empowers people, businesses, and economies across more than 200 countries and territories. As a Staff Software Engineer within the Payment Processing team, you'll be a technical leader focused on building and enhancing complex payment integration systems. You'll help design highly available, scalable services while mentoring your peers and dri
Location: Hybrid (2/3 days per week in office) Recruitment Partner: VANRATH - Job Type: Full-time | Permanent - Industry: Financial Technology / Payments - VANRATH is proud to be recruiting on behalf of a global leader in digital payments-an organization known for delivering secure, innovative financial solutions that support billions of transactions worldwide each year. This is a rare opportunity to join a purpose-driven company where technology meets impact. You'll work alongside top-tier engineers to build infrastructure that empowers people, businesses, and economies across more than 200 countries and territories. As a Staff Software Engineer within the Payment Processing team, you'll be a technical leader focused on building and enhancing complex payment integration systems. You'll help design highly available, scalable services while mentoring your peers and dri
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Job Title: Staff Software Engineer (Python + Frontend) Type: Full-time - About the Role - We are seeking a highly experienced Staff Software Engineer with deep expertise in Python and a modern frontend framework (such as React, Vue, or Angular). In this role, you'll play a key part in designing and delivering scalable, high-performance systems that drive our core platform. Youll collaborate across teams to define technical strategy, build robust architecture, and mentor other engineers. This is a hands-on role for someone who thrives in a fast-paced, problem-solving environment and wants to have a significant impact on both the product and engineering culture. What Youll Do * Lead the design and development of scalable backend services using Python. * Architect and implement frontend features using your preferred modern JavaScript framework (e.g., React, Vue, Angular)
Job Title: Staff Software Engineer (Python + Frontend) Type: Full-time - About the Role - We are seeking a highly experienced Staff Software Engineer with deep expertise in Python and a modern frontend framework (such as React, Vue, or Angular). In this role, you'll play a key part in designing and delivering scalable, high-performance systems that drive our core platform. Youll collaborate across teams to define technical strategy, build robust architecture, and mentor other engineers. This is a hands-on role for someone who thrives in a fast-paced, problem-solving environment and wants to have a significant impact on both the product and engineering culture. What Youll Do * Lead the design and development of scalable backend services using Python. * Architect and implement frontend features using your preferred modern JavaScript framework (e.g., React, Vue, Angular)
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Are you a talented and experienced Embedded Software Engineer looking to make an impact within a forward-thinking team? MCS Group is looking for a motivated individual to design, develop, and optimise software solutions tailored to client needs and hardware platforms. * Develop and modify software for embedded systems to enhance performance and efficiency * Analyse user requirements and create tailored software solutions * Debug and resolve complex technical issues * Collaborate across teams to define specifications, requirements, and solutions * Write clean, well-documented, and testable code * Prioritise tasks and manage project deadlines with minimal supervision * Bachelor's degree in Computer Science, Engineering or a related field * You will have been working in a commercial software engineering position for a few years now, and will have spent a proportion of th
Are you a talented and experienced Embedded Software Engineer looking to make an impact within a forward-thinking team? MCS Group is looking for a motivated individual to design, develop, and optimise software solutions tailored to client needs and hardware platforms. * Develop and modify software for embedded systems to enhance performance and efficiency * Analyse user requirements and create tailored software solutions * Debug and resolve complex technical issues * Collaborate across teams to define specifications, requirements, and solutions * Write clean, well-documented, and testable code * Prioritise tasks and manage project deadlines with minimal supervision * Bachelor's degree in Computer Science, Engineering or a related field * You will have been working in a commercial software engineering position for a few years now, and will have spent a proportion of th
Working exclusively on frontend engineering (no backend work) while defining API schemas.
Working exclusively on frontend engineering (no backend work) while defining API schemas.
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Defining API schemas and working closely with backend teams * Experience in API design and frontend performance optimisation
Defining API schemas and working closely with backend teams * Experience in API design and frontend performance optimisation
Skilled in API design, RESTful services, and structured data workflows
Skilled in API design, RESTful services, and structured data workflows
Lead the development and improvement of robust, scalable automation frameworks (UI, API, and performance) * Hands-on expertise with Automation frameworks: Playwright (E2E/UI), Postman (API), JMeter (Performance)
Lead the development and improvement of robust, scalable automation frameworks (UI, API, and performance) * Hands-on expertise with Automation frameworks: Playwright (E2E/UI), Postman (API), JMeter (Performance)
Deep experience with API platforms, SaaS applications, and high-availability systems.
Deep experience with API platforms, SaaS applications, and high-availability systems.
Deep knowledge of REST APIs, data formats (JSON, XML, Avro), and API integrations
Deep knowledge of REST APIs, data formats (JSON, XML, Avro), and API integrations
Build and manage automated testing frameworks for web, mobile, API, and performance testing * You will have demonstrated experience building automated test frameworks for web and API testing.
Build and manage automated testing frameworks for web, mobile, API, and performance testing * You will have demonstrated experience building automated test frameworks for web and API testing.
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Strong technical background across API, front-end, and full-stack environments
Strong technical background across API, front-end, and full-stack environments
An innovative global consultancy is seeking a Senior Systems Support Specialist to bolster its enterprise IT capabilities on a 12-month fixed-term basis. This pivotal role will underpin the seamless delivery and optimisation of a mission-critical document and content management ecosystem as part of an ambitious cloud-first transformation programme. You will act as a strategic enabler for operational excellence across a distributed workforce spanning multiple geographies. The role demands a blend of deep technical expertise, collaborative engagement, and a passion for driving system evolution in a dynamic, service-centric environment. What You'll Be Doing * Lead the operational support and lifecycle management of core enterprise content and document management systems. * Drive continuous improvement initiatives, including performance tuning, platform upgrades, and patc
An innovative global consultancy is seeking a Senior Systems Support Specialist to bolster its enterprise IT capabilities on a 12-month fixed-term basis. This pivotal role will underpin the seamless delivery and optimisation of a mission-critical document and content management ecosystem as part of an ambitious cloud-first transformation programme. You will act as a strategic enabler for operational excellence across a distributed workforce spanning multiple geographies. The role demands a blend of deep technical expertise, collaborative engagement, and a passion for driving system evolution in a dynamic, service-centric environment. What You'll Be Doing * Lead the operational support and lifecycle management of core enterprise content and document management systems. * Drive continuous improvement initiatives, including performance tuning, platform upgrades, and patc
My client, a fast-scaling technology-driven marketplace, is seeking a talented Senior Back-End Software Engineer to join their dynamic engineering team. You'll join a collaborative, cross-functional team where your input directly impacts the growth and scalability of a service-oriented platform. This is an opportunity to work on meaningful, production-grade solutions using modern JVM technologies within a cloud-first, microservices environment. * Design, build, and enhance core backend services supporting a high-performance marketplace platform * Collaborate with product managers, designers, and engineers to deliver robust, scalable solutions * Champion clean architecture, performance, and reliability in all stages of development * Drive continuous improvement across engineering practices, team processes, and product quality
My client, a fast-scaling technology-driven marketplace, is seeking a talented Senior Back-End Software Engineer to join their dynamic engineering team. You'll join a collaborative, cross-functional team where your input directly impacts the growth and scalability of a service-oriented platform. This is an opportunity to work on meaningful, production-grade solutions using modern JVM technologies within a cloud-first, microservices environment. * Design, build, and enhance core backend services supporting a high-performance marketplace platform * Collaborate with product managers, designers, and engineers to deliver robust, scalable solutions * Champion clean architecture, performance, and reliability in all stages of development * Drive continuous improvement across engineering practices, team processes, and product quality
Enso Recruitment is working on behalf of a fast-growing tech-driven organisation thats redefining how businesses manage risk in an increasingly complex digital world. We are currently looking for a seasoned AI Staff Engineer to join their remote team. This is a rare opportunity to help build a cutting-edge platform from scratch, contributing directly to the future of AI-enhanced threat intelligence. The Role - This is a senior hands-on role, ideal for someone with a strong background in AI/ML and software architecture, who enjoys working collaboratively to shape scalable solutions. Youll work closely with technical teams and analysts to design, develop, and deploy AI-driven features and systems that support real-time intelligence operations. Key Responsibilities * Design and build AI-powered features for automated intelligence, pattern recognition, and threat identifi
Enso Recruitment is working on behalf of a fast-growing tech-driven organisation thats redefining how businesses manage risk in an increasingly complex digital world. We are currently looking for a seasoned AI Staff Engineer to join their remote team. This is a rare opportunity to help build a cutting-edge platform from scratch, contributing directly to the future of AI-enhanced threat intelligence. The Role - This is a senior hands-on role, ideal for someone with a strong background in AI/ML and software architecture, who enjoys working collaboratively to shape scalable solutions. Youll work closely with technical teams and analysts to design, develop, and deploy AI-driven features and systems that support real-time intelligence operations. Key Responsibilities * Design and build AI-powered features for automated intelligence, pattern recognition, and threat identifi
Remote (UK or Ireland) | Full-time | Competitive Salary + Equity - Our exclusive client is a fast-growing SaaS company building next-gen infrastructure for secure software delivery. We're looking for a UX Prototyping Lead to help shape new features through rapid, high-quality prototypes. What You'll Do * Turn briefs into browser-based prototypes using React/ * Collaborate with designers and product teams to define user experiences * Test, refine, and document prototypes for hand off to engineering * Contribute to design systems and public-facing web assets - What You'll Bring * Demonstrable front-end prototyping experience * Strong HTML, CSS, JavaScript, and React/ skills * Familiarity with APIs, design systems, and tools like Figma * Bonus: CMS or back-end experience - Why Join Us * Remote-first with flexible working * Competitive pay, equity, and great benefits
Remote (UK or Ireland) | Full-time | Competitive Salary + Equity - Our exclusive client is a fast-growing SaaS company building next-gen infrastructure for secure software delivery. We're looking for a UX Prototyping Lead to help shape new features through rapid, high-quality prototypes. What You'll Do * Turn briefs into browser-based prototypes using React/ * Collaborate with designers and product teams to define user experiences * Test, refine, and document prototypes for hand off to engineering * Contribute to design systems and public-facing web assets - What You'll Bring * Demonstrable front-end prototyping experience * Strong HTML, CSS, JavaScript, and React/ skills * Familiarity with APIs, design systems, and tools like Figma * Bonus: CMS or back-end experience - Why Join Us * Remote-first with flexible working * Competitive pay, equity, and great benefits