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15 Contract API jobs in County Antrim + 20 miles
Migrate and refactor legacy APIs to modern architectural standards whilst ensuring API contract compatibility * Understanding of RESTful API design, microservices architecture and cloud-native development
Migrate and refactor legacy APIs to modern architectural standards whilst ensuring API contract compatibility * Understanding of RESTful API design, microservices architecture and cloud-native development
Validate API integrations, security implementations and accessibility standards (WCAG 2.1) * Experience with API testing, mobile application testing and cross-platform validation
Validate API integrations, security implementations and accessibility standards (WCAG 2.1) * Experience with API testing, mobile application testing and cross-platform validation
Proficiency in React Native, JavaScript/TypeScript and React fundamentals * Solid understanding of REST API integration, asynchronous programming and cross-platform development
Proficiency in React Native, JavaScript/TypeScript and React fundamentals * Solid understanding of REST API integration, asynchronous programming and cross-platform development
Strong knowledge of mobile architecture, REST API integration and asynchronous programming
Strong knowledge of mobile architecture, REST API integration and asynchronous programming
Validate API integrations, security implementations and Strong Customer Authentication (SCA) flows * Deep understanding of mobile testing (iOS and Android), API testing and cross-platform validation
Validate API integrations, security implementations and Strong Customer Authentication (SCA) flows * Deep understanding of mobile testing (iOS and Android), API testing and cross-platform validation
Write and maintain automated API tests for C# microservices and GraphQL endpoints
Write and maintain automated API tests for C# microservices and GraphQL endpoints
Integration & Extensibility - Connect solutions to Microsoft 365, Dynamics 365 Customer Engagement, Azure services (Functions, Logic Apps, API Management), and external systems using standard connectors and custom connectors/APIs. * Integration : Hands-on with Microsoft 365, Dynamics 365 CE, Azure integration patterns (HTTP, queues, webhooks), and API design/consumption.
Integration & Extensibility - Connect solutions to Microsoft 365, Dynamics 365 Customer Engagement, Azure services (Functions, Logic Apps, API Management), and external systems using standard connectors and custom connectors/APIs. * Integration : Hands-on with Microsoft 365, Dynamics 365 CE, Azure integration patterns (HTTP, queues, webhooks), and API design/consumption.
CME Technology and Support Services is relentlessly focused on developing the worlds most advanced electronic trading, post trade processing and risk management systems. We are the worlds leading and most diverse derivatives marketplace, providing risk management solutions that help drive the global economy. Our customers include leading investment and commercial banks, hedge funds, proprietary trading firms, pension funds, sovereign wealth funds, asset managers, corporations, and individual traders. The selected candidate will join the Data Services Domain within Technology in Belfast as a Senior Software Engineer. You will be part of the Market Data Core APIs and Processing team. This role will be instrumental in designing, developing, and maintaining the systems and tools used for the accurate calculation and dissemination of CME Group's proprietary market data ...
CME Technology and Support Services is relentlessly focused on developing the worlds most advanced electronic trading, post trade processing and risk management systems. We are the worlds leading and most diverse derivatives marketplace, providing risk management solutions that help drive the global economy. Our customers include leading investment and commercial banks, hedge funds, proprietary trading firms, pension funds, sovereign wealth funds, asset managers, corporations, and individual traders. The selected candidate will join the Data Services Domain within Technology in Belfast as a Senior Software Engineer. You will be part of the Market Data Core APIs and Processing team. This role will be instrumental in designing, developing, and maintaining the systems and tools used for the accurate calculation and dissemination of CME Group's proprietary market data ...
Technology Solutions Analyst (IT Business Analyst) The CME markets technology portfolio seeks a Technology Solutions Analyst to join the global solutions and architecture team. This role is vital for providing the technical analysis necessary to drive the evolution and growth of CMEs core trade execution and post trade systems. These systems power major electronic trading platforms across Futures & Options, EBS and BTEC markets. The mission of the team is to continuously deliver new features while maintaining systems that are both low latency and demonstrate high reliability. This role will involve working closely with Product Owners, Scrum Masters, Development, Testing and Architecture stakeholders to provide creative solutions that meet the functional business needs whilst strictly maintaining the required performance profile, along with other non-functional require
Technology Solutions Analyst (IT Business Analyst) The CME markets technology portfolio seeks a Technology Solutions Analyst to join the global solutions and architecture team. This role is vital for providing the technical analysis necessary to drive the evolution and growth of CMEs core trade execution and post trade systems. These systems power major electronic trading platforms across Futures & Options, EBS and BTEC markets. The mission of the team is to continuously deliver new features while maintaining systems that are both low latency and demonstrate high reliability. This role will involve working closely with Product Owners, Scrum Masters, Development, Testing and Architecture stakeholders to provide creative solutions that meet the functional business needs whilst strictly maintaining the required performance profile, along with other non-functional require
Sr Software Engineer - BETS - CME Technology and Support Services is relentlessly focused on developing the worlds most advanced electronic trading, post trade processing and risk management systems. We are the worlds leading and most diverse derivatives market place providing risk management solutions that help drive the global economy. Our customers include leading investment and commercial banks, hedge funds, proprietary trading firms, pension funds, sovereign wealth funds, asset managers, corporations, and individual traders. The selected candidate will join the CME Engineering and Execution team in Belfast, as a Senior Software Engineer on the BrokerTec Back End Trading Services Team. The Belfast team is a high performing group of individuals that deliver on a broad range of functions including systems/business analysis, software development and quality assurance
Sr Software Engineer - BETS - CME Technology and Support Services is relentlessly focused on developing the worlds most advanced electronic trading, post trade processing and risk management systems. We are the worlds leading and most diverse derivatives market place providing risk management solutions that help drive the global economy. Our customers include leading investment and commercial banks, hedge funds, proprietary trading firms, pension funds, sovereign wealth funds, asset managers, corporations, and individual traders. The selected candidate will join the CME Engineering and Execution team in Belfast, as a Senior Software Engineer on the BrokerTec Back End Trading Services Team. The Belfast team is a high performing group of individuals that deliver on a broad range of functions including systems/business analysis, software development and quality assurance
As we embark on a journey to transform the Network Services Group in CME, we are seeking a Site Reliability Engineer II to join our dynamic team. In this role, you will design, develop and maintain self-service tools and applications that enhance productivity and reduce operational costs. You will work across the full stackboth front-end and back-endto architect microservices (GKE) in Google Cloud Platform (GCP), driving our infrastructure towards greater automation and reliability. We are a global team across US, UK, India and Singapore made up of a diverse range of people from varied backgrounds who each bring unique network experiences and skill sets. The relatively new Network Reliability/Automation team are responsible for building a suite of custom automation tools and developing our self-healing capabilities while working closely with other members of the Netwo
As we embark on a journey to transform the Network Services Group in CME, we are seeking a Site Reliability Engineer II to join our dynamic team. In this role, you will design, develop and maintain self-service tools and applications that enhance productivity and reduce operational costs. You will work across the full stackboth front-end and back-endto architect microservices (GKE) in Google Cloud Platform (GCP), driving our infrastructure towards greater automation and reliability. We are a global team across US, UK, India and Singapore made up of a diverse range of people from varied backgrounds who each bring unique network experiences and skill sets. The relatively new Network Reliability/Automation team are responsible for building a suite of custom automation tools and developing our self-healing capabilities while working closely with other members of the Netwo
Location: Belfast - Salary: Competitive - Join our team of expert engineers in the Engineering Team! Who are we? Options is the largest global financial technology company headquartered in Belfast. We are at the forefront of banking and trading infrastructure, serving clients globally with offices in New York, Chicago, Toronto, London, Cambridge, Paris, Hong Kong, Tokyo, Singapore, and Auckland. At Options, our services are woven into the hottest trends in global tech, including high-performance Networking, Cloud, Security, and AI (Artificial Intelligence). Why Options? Global travel: We have offices in New York, Chicago, Toronto, London, Belfast, Dublin and across Asia. Continuous career development opportunities: We provide professional skills development and technical training. The chance to be a part of a self-sufficient, successful team: The Options team operates
Location: Belfast - Salary: Competitive - Join our team of expert engineers in the Engineering Team! Who are we? Options is the largest global financial technology company headquartered in Belfast. We are at the forefront of banking and trading infrastructure, serving clients globally with offices in New York, Chicago, Toronto, London, Cambridge, Paris, Hong Kong, Tokyo, Singapore, and Auckland. At Options, our services are woven into the hottest trends in global tech, including high-performance Networking, Cloud, Security, and AI (Artificial Intelligence). Why Options? Global travel: We have offices in New York, Chicago, Toronto, London, Belfast, Dublin and across Asia. Continuous career development opportunities: We provide professional skills development and technical training. The chance to be a part of a self-sufficient, successful team: The Options team operates
REST API design
REST API design
Understanding of microservices architecture and RESTful API design.
Understanding of microservices architecture and RESTful API design.
Familiarity with containerization (e.g., Docker), edge computing, and API design.
Familiarity with containerization (e.g., Docker), edge computing, and API design.
82 exact matches jobs are outside your preferred location
Migrate and refactor legacy APIs to modern architectural standards whilst ensuring API contract compatibility * Understanding of RESTful API design, microservices architecture and cloud-native development
Migrate and refactor legacy APIs to modern architectural standards whilst ensuring API contract compatibility * Understanding of RESTful API design, microservices architecture and cloud-native development
Lead the strategic integration of business systems through robust API and data interface solutions, enabling cross-functional connectivity and operational efficiency
Lead the strategic integration of business systems through robust API and data interface solutions, enabling cross-functional connectivity and operational efficiency
Proficiency in React Native, JavaScript/TypeScript and React fundamentals * Solid understanding of REST API integration, asynchronous programming and cross-platform development
Proficiency in React Native, JavaScript/TypeScript and React fundamentals * Solid understanding of REST API integration, asynchronous programming and cross-platform development
Validate API integrations, security implementations and Strong Customer Authentication (SCA) flows * Deep understanding of mobile testing (iOS and Android), API testing and cross-platform validation
Validate API integrations, security implementations and Strong Customer Authentication (SCA) flows * Deep understanding of mobile testing (iOS and Android), API testing and cross-platform validation
Strong knowledge of mobile architecture, REST API integration and asynchronous programming
Strong knowledge of mobile architecture, REST API integration and asynchronous programming
Senior Application Support Engineer
Senior Application Support Engineer
Hannon Transport Ltd
Craigavon, County Armagh
£45,000 - £55,000 a year
Develop Python services and utilities (ETL jobs, API clients, data quality checks, automation tools), packaged and containerised where suitable.
Develop Python services and utilities (ETL jobs, API clients, data quality checks, automation tools), packaged and containerised where suitable.
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Familiarity with AI or API integrations is advantageous.
Familiarity with AI or API integrations is advantageous.
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Role: Solutions Architect - Location: Hybrid, Hampshire - Salary: Competitive (Outside IR35) Type 5 month Contract - Myn is an AI driven marketplace that connects the candidates, clients and recruiters. Myn collaborates with leading employers to offer exclusive, carefully matched contract and permanent positions. Our Recruitment Partners all have extensive industry experience, and work with a select group of niche clients, to deliver the best possible experience to the candidate. Our client is a specialist technology consultancy delivering high-impact digital transformation across UK Central Government and Defence. Theyre looking for a Senior Solution Architect who can set technical direction on projects that genuinely shape national infrastructure and public-sector capability. Youll be right at the intersection of strategy and engineering, guiding multidisciplinary t
Role: Solutions Architect - Location: Hybrid, Hampshire - Salary: Competitive (Outside IR35) Type 5 month Contract - Myn is an AI driven marketplace that connects the candidates, clients and recruiters. Myn collaborates with leading employers to offer exclusive, carefully matched contract and permanent positions. Our Recruitment Partners all have extensive industry experience, and work with a select group of niche clients, to deliver the best possible experience to the candidate. Our client is a specialist technology consultancy delivering high-impact digital transformation across UK Central Government and Defence. Theyre looking for a Senior Solution Architect who can set technical direction on projects that genuinely shape national infrastructure and public-sector capability. Youll be right at the intersection of strategy and engineering, guiding multidisciplinary t
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Job Title: SPM ServiceNow Developer - Location: Remote (Work from Home - UK) Job Type: Contract (Inside IR35) Duration: 12 Months Job Summary: Join Tata Consultancy Services (TCS) as an SPM ServiceNow Developer and be at the forefront of digital transformation. Work on innovative projects for some of the world's leading brands, making a meaningful impact in a dynamic, agile environment. Your expertise will help drive efficiency and optimization through the ServiceNow platform. * Work closely with the ServiceNow Solutions Architect to design and implement requirements from the SPM Process Team. * Develop, configure, and maintain the ServiceNow platform, primarily within the SPM (Strategic Portfolio Management) module. * Configure and customize the ServiceNow platform using JavaScript and ServiceNow APIs to extend capabilities and enhance user experience.
Job Title: SPM ServiceNow Developer - Location: Remote (Work from Home - UK) Job Type: Contract (Inside IR35) Duration: 12 Months Job Summary: Join Tata Consultancy Services (TCS) as an SPM ServiceNow Developer and be at the forefront of digital transformation. Work on innovative projects for some of the world's leading brands, making a meaningful impact in a dynamic, agile environment. Your expertise will help drive efficiency and optimization through the ServiceNow platform. * Work closely with the ServiceNow Solutions Architect to design and implement requirements from the SPM Process Team. * Develop, configure, and maintain the ServiceNow platform, primarily within the SPM (Strategic Portfolio Management) module. * Configure and customize the ServiceNow platform using JavaScript and ServiceNow APIs to extend capabilities and enhance user experience.
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Contract Role: Prompt Engineer (Salesforce & Generative AI Integration) Duration: 4–5 months (November – March) Hourly Rate: £54.60 - £60/hour inside IR35 - Location: Fully Remote (UK-based candidates only) Overview - We are seeking a highly skilled Prompt Engineer with deep expertise in the Salesforce platform and hands-on experience in Generative AI integration. This role bridges the gap between business requirements and intelligent automation, crafting high-impact prompts and embedding AI capabilities into Salesforce workflows to enhance customer experience and operational efficiency. Key Responsibilities - Salesforce Platform Expertise * Design and configure Salesforce objects, data models, and automation using Flows, Apex, and Lightning Web Components (LWC). * Leverage Service Cloud and Sales Cloud functionality to support AI-driven use cases.
Contract Role: Prompt Engineer (Salesforce & Generative AI Integration) Duration: 4–5 months (November – March) Hourly Rate: £54.60 - £60/hour inside IR35 - Location: Fully Remote (UK-based candidates only) Overview - We are seeking a highly skilled Prompt Engineer with deep expertise in the Salesforce platform and hands-on experience in Generative AI integration. This role bridges the gap between business requirements and intelligent automation, crafting high-impact prompts and embedding AI capabilities into Salesforce workflows to enhance customer experience and operational efficiency. Key Responsibilities - Salesforce Platform Expertise * Design and configure Salesforce objects, data models, and automation using Flows, Apex, and Lightning Web Components (LWC). * Leverage Service Cloud and Sales Cloud functionality to support AI-driven use cases.
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