Date posted
Commute time
Locations
Type of Company
Job types
Salaries
Locations
Locations
Salaries
Date posted
Type of Company
Job types
4 Contract API jobs in Darlington + 20 miles
Familiarity with API integration, cloud platforms, and modern software architecture concepts
Familiarity with API integration, cloud platforms, and modern software architecture concepts
Senior Software Developer (Investment Zone)
Senior Software Developer (Investment Zone)
Teesside University
Middlesbrough, North Yorkshire
£31,236 - £35,608 a year
Salary £31,236 - £35,608 - Contractual hours - 37 - Basis - Full time - Package - Full time, Fixed term from 01/08/2026 until 31/03/2029 - Date posted - 16/04/2026 - T02742 - Are you ready to make a real impact in an exciting role at the heart of transforming the Tees Valley economy? Teesside University is offering an exciting opportunity for a talented Senior Software Developer to support delivery of a major research and innovation programme. As a key partner in the Tees Valley Investment Zone, Teesside University is leading the research and innovation workstream as part of a £160 million, 10-year investment into the digital and creative sectors. We are seeking someone with strong technical expertise, a collaborative approach and the ability to turn ideas into robust digital solutions that support businesses and innovation projects across the region. About the Role
Salary £31,236 - £35,608 - Contractual hours - 37 - Basis - Full time - Package - Full time, Fixed term from 01/08/2026 until 31/03/2029 - Date posted - 16/04/2026 - T02742 - Are you ready to make a real impact in an exciting role at the heart of transforming the Tees Valley economy? Teesside University is offering an exciting opportunity for a talented Senior Software Developer to support delivery of a major research and innovation programme. As a key partner in the Tees Valley Investment Zone, Teesside University is leading the research and innovation workstream as part of a £160 million, 10-year investment into the digital and creative sectors. We are seeking someone with strong technical expertise, a collaborative approach and the ability to turn ideas into robust digital solutions that support businesses and innovation projects across the region. About the Role
SOFTWARE DEVELOPMENT APPRENTICESHIP
SOFTWARE DEVELOPMENT APPRENTICESHIP
Baltic Training Services Limited
Darlington, County Durham
£22,000 a year
Software Developer Apprentice - Job Title: Software Developer Apprentice - Department: Operations / Digital / Systems - Salary: £22,000 - Location: Head Office, Pioneer House, Morton Park, Darlington DL1 4WD - Whats the job? This is an exciting opportunity for someone looking to start their career in software development while gaining hands-on experience in a fast-moving digital environment. As a Software Developer Apprentice, you will support the development, maintenance, and improvement of internal systems, automations, and digital tools that help our teams work more efficiently. Working closely with experienced colleagues, you will contribute to well-defined pieces of work across live projects, learning how software can be used to solve problems, improve processes, and support business operations. You will gain exposure to internal tools, backend systems, automations, integrations, ...
Software Developer Apprentice - Job Title: Software Developer Apprentice - Department: Operations / Digital / Systems - Salary: £22,000 - Location: Head Office, Pioneer House, Morton Park, Darlington DL1 4WD - Whats the job? This is an exciting opportunity for someone looking to start their career in software development while gaining hands-on experience in a fast-moving digital environment. As a Software Developer Apprentice, you will support the development, maintenance, and improvement of internal systems, automations, and digital tools that help our teams work more efficiently. Working closely with experienced colleagues, you will contribute to well-defined pieces of work across live projects, learning how software can be used to solve problems, improve processes, and support business operations. You will gain exposure to internal tools, backend systems, automations, integrations, ...
Were looking for a Principal Graphics Programmer to join our award winning team in Middlesbrough (UK), home to the beautiful North Yorkshire coastline and countryside. As a Principal Graphics Programmer at Double Eleven, youll work alongside the Technical Director and other Principals, you will help lead the technical vision, architecture, and execution of cutting-edge rendering systems for our custom graphics engine for next-generation projects. Double Eleven is one of the largest independent video games developers and publishers in the UK. Headquartered in Middlesbrough, we employ over 400 people across our UK and Kuala Lumpur studios. We are incredibly proud to partner with some of the worlds leading developers and publishers, including Rockstar Games, Obsidian Entertainment, Mojang, Bethesda Game Studios and Facepunch.
Were looking for a Principal Graphics Programmer to join our award winning team in Middlesbrough (UK), home to the beautiful North Yorkshire coastline and countryside. As a Principal Graphics Programmer at Double Eleven, youll work alongside the Technical Director and other Principals, you will help lead the technical vision, architecture, and execution of cutting-edge rendering systems for our custom graphics engine for next-generation projects. Double Eleven is one of the largest independent video games developers and publishers in the UK. Headquartered in Middlesbrough, we employ over 400 people across our UK and Kuala Lumpur studios. We are incredibly proud to partner with some of the worlds leading developers and publishers, including Rockstar Games, Obsidian Entertainment, Mojang, Bethesda Game Studios and Facepunch.
35 exact matches jobs are outside your preferred location
This role presents an exciting opportunity for a Senior API Developer to play a critical part in the development and support of the Bank of Englands Real Time Gross Settlement (RTGS) service a piece of UK critical national infrastructure that settles on average £800bn per day. You are a dedicated API engineer within an Agile environment and meet the minimum criteria. * Demonstrable hands-on experience on API Gateway at an enterprise scale (e.g., Apigee) * Proficient in API documentation tools (e.g., Swagger/Open API) * Experience with Performance tuning, including optimising API latency and fine-tuning Spring Boot performance (JVM tuning, connection pooling)
This role presents an exciting opportunity for a Senior API Developer to play a critical part in the development and support of the Bank of Englands Real Time Gross Settlement (RTGS) service a piece of UK critical national infrastructure that settles on average £800bn per day. You are a dedicated API engineer within an Agile environment and meet the minimum criteria. * Demonstrable hands-on experience on API Gateway at an enterprise scale (e.g., Apigee) * Proficient in API documentation tools (e.g., Swagger/Open API) * Experience with Performance tuning, including optimising API latency and fine-tuning Spring Boot performance (JVM tuning, connection pooling)
SOFTWARE DEVELOPMENT APPRENTICESHIP
SOFTWARE DEVELOPMENT APPRENTICESHIP
Baltic Training Services Limited
Lancaster, Lancashire
£18,000 - £20,000 a year
Working alongside experienced developers, you will gain hands-on experience in building features, assisting with database and API integration, testing and debugging code, and contributing to technical documentation, while collaborating with internal teams in a professional development environment. * Implement and maintain database connections and API integrations
Working alongside experienced developers, you will gain hands-on experience in building features, assisting with database and API integration, testing and debugging code, and contributing to technical documentation, while collaborating with internal teams in a professional development environment. * Implement and maintain database connections and API integrations
Automation Tester (Azure) Must be Security Cleared
Automation Tester (Azure) Must be Security Cleared
AMBER LABS LIMITED
Newcastle Upon Tyne, Tyne and Wear
Competitive
Understanding of API and integration testing methodologies.
Understanding of API and integration testing methodologies.
Youll join our product and engineering team, working on a modern front-end application built with Nuxt that sits on top of our Django-powered API.
Youll join our product and engineering team, working on a modern front-end application built with Nuxt that sits on top of our Django-powered API.
Passion for testing and a technical background with experience in manual and automated API/Front-end testing.
Passion for testing and a technical background with experience in manual and automated API/Front-end testing.
Principal Solutions Architect
Principal Solutions Architect
Leighton Corporation Limited
Newcastle Upon Tyne, Tyne and Wear
Competitive
Oversee API strategy, integration patterns, and AI-readiness * Strong working knowledge of modern event-driven/API/microservice patterns
Oversee API strategy, integration patterns, and AI-readiness * Strong working knowledge of modern event-driven/API/microservice patterns
Role summary - This is a junior revenue operations role focused on AI automation, systems integration, and data infrastructure. Reporting to the Head of Growth Operations, you will be responsible for building and maintaining the automated systems, data flows, and AI-enabled processes that underpin Cognassists commercial engine. This is not a marketing or sales execution role. You will work across CRM, marketing automation, AI tooling, analytics, and integrations ensuring the operational infrastructure is scalable, clean, and increasingly automated. The ideal candidate is analytically sharp, systems-oriented, and genuinely excited about applying AI to real business problems. Were looking for someone early in their career with exceptional quantitative ability and a hunger to learn. Responsibilities - Automation & Process Engineering
Role summary - This is a junior revenue operations role focused on AI automation, systems integration, and data infrastructure. Reporting to the Head of Growth Operations, you will be responsible for building and maintaining the automated systems, data flows, and AI-enabled processes that underpin Cognassists commercial engine. This is not a marketing or sales execution role. You will work across CRM, marketing automation, AI tooling, analytics, and integrations ensuring the operational infrastructure is scalable, clean, and increasingly automated. The ideal candidate is analytically sharp, systems-oriented, and genuinely excited about applying AI to real business problems. Were looking for someone early in their career with exceptional quantitative ability and a hunger to learn. Responsibilities - Automation & Process Engineering
Application Platform Lead in RTGS Technology
Application Platform Lead in RTGS Technology
Bank of England
Leeds, West Yorkshire
£64,480 - £72,540 a year
Role overview - The Real Time Gross Settlement (RTGS) service sits at the centre of the UKs financial system, settling on average £800bn per day and operating as UK Critical National Infrastructure. This role provides an opportunity to lead application engineering for a service where reliability, resilience and engineering quality genuinely matter. RTGS operates within a highly secure environment and follows a product centric operating model, combining strong operational accountability with an automation first approach to testing, deployment and live service operations. Continuous improvement and the reduction of obsolescence are core to how the service is designed, delivered and evolved. As an Application Platform Lead , you will lead engineering across application product teams within RTGS. You will develop technical leaders, establish clear standards for engineering ...
Role overview - The Real Time Gross Settlement (RTGS) service sits at the centre of the UKs financial system, settling on average £800bn per day and operating as UK Critical National Infrastructure. This role provides an opportunity to lead application engineering for a service where reliability, resilience and engineering quality genuinely matter. RTGS operates within a highly secure environment and follows a product centric operating model, combining strong operational accountability with an automation first approach to testing, deployment and live service operations. Continuous improvement and the reduction of obsolescence are core to how the service is designed, delivered and evolved. As an Application Platform Lead , you will lead engineering across application product teams within RTGS. You will develop technical leaders, establish clear standards for engineering ...
Company Description - Angstrom is a proprietary sports pricing and product provider, building intricate, simulation driven pricing and risk systems to support the success of key sports brands across the Entain group. Founded in 2018 and having established itself as a pioneer in player-level, play-by-play simulations and forecasting, Angstrom was acquired by Entain in 2023. Today, we operate as a semi-autonomous division, responsible for delivering the groups most advanced pricing and risk capabilities with a focus on the US market. Were committed to building the next generation of sports betting products sports-first, recreationally-focused, and designed to make betting more engaging, more intelligent, and more fun. Were proud to be a high-performing, low-ego team where brilliant people work and people work to become brilliant.
Company Description - Angstrom is a proprietary sports pricing and product provider, building intricate, simulation driven pricing and risk systems to support the success of key sports brands across the Entain group. Founded in 2018 and having established itself as a pioneer in player-level, play-by-play simulations and forecasting, Angstrom was acquired by Entain in 2023. Today, we operate as a semi-autonomous division, responsible for delivering the groups most advanced pricing and risk capabilities with a focus on the US market. Were committed to building the next generation of sports betting products sports-first, recreationally-focused, and designed to make betting more engaging, more intelligent, and more fun. Were proud to be a high-performing, low-ego team where brilliant people work and people work to become brilliant.
Sunderland Hybrid Permanent What this role looks like - Were looking for a Lead Developer to join our Game Engine team here at tombola. This is one of those roles where you genuinely get the best of both worlds. Youll be hands-on leading the development of our backend game engine, shaping how we build, scale and evolve the systems that power our games. Our Game Engine sits right at the heart of what we do. Its where performance, player experience and regulatory compliance all come together. So if you enjoy solving complex problems, working on real-time systems and having a real say in technical direction, this ones worth a look. Youll be in the office 3 days a week, working closely with the team, with the flexibility to focus from home the rest of the time. What youll be doing * Leading the design and development of core game engine systems and APIs
Sunderland Hybrid Permanent What this role looks like - Were looking for a Lead Developer to join our Game Engine team here at tombola. This is one of those roles where you genuinely get the best of both worlds. Youll be hands-on leading the development of our backend game engine, shaping how we build, scale and evolve the systems that power our games. Our Game Engine sits right at the heart of what we do. Its where performance, player experience and regulatory compliance all come together. So if you enjoy solving complex problems, working on real-time systems and having a real say in technical direction, this ones worth a look. Youll be in the office 3 days a week, working closely with the team, with the flexibility to focus from home the rest of the time. What youll be doing * Leading the design and development of core game engine systems and APIs
Azure Automation Test Engineer (12-Month FTC) Hybrid (Newcastle) Location: Hybrid 2 days per week onsite in Newcastle (for the first 3 months), with potential to reduce onsite presence thereafter - Type: 12-Month Fixed Term Contract (FTC) with potential to extend - Clearance Requirement: Active SC Clearance or SC eligible is essential - About the Role - Amber Labs is seeking an experienced Azure Automation Test Engineer to join our dynamic consultancy on a 12-month fixed-term contract. This hybrid role requires 2 days per week onsite in Newcastle for the first 3 months , with the option to reduce onsite commitments after that period. You'll play a pivotal role in automating testing for infrastructure and deployment pipelines , helping to ensure resilient, performant, and secure delivery across modern cloud-native platforms.
Azure Automation Test Engineer (12-Month FTC) Hybrid (Newcastle) Location: Hybrid 2 days per week onsite in Newcastle (for the first 3 months), with potential to reduce onsite presence thereafter - Type: 12-Month Fixed Term Contract (FTC) with potential to extend - Clearance Requirement: Active SC Clearance or SC eligible is essential - About the Role - Amber Labs is seeking an experienced Azure Automation Test Engineer to join our dynamic consultancy on a 12-month fixed-term contract. This hybrid role requires 2 days per week onsite in Newcastle for the first 3 months , with the option to reduce onsite commitments after that period. You'll play a pivotal role in automating testing for infrastructure and deployment pipelines , helping to ensure resilient, performant, and secure delivery across modern cloud-native platforms.
Who We Are - At Partnerize, we're on a mission to transform the way businesses grow. We've built the leading partnership automation platform that empowers brands to discover, engage, and convert their audiences at scale. From affiliate marketing to influencer collaborations, we help our clients build and manage profitable partnerships that drive real results. We're a team of passionate problem-solvers who are dedicated to helping our clients win in the ever-evolving world of digital marketing. Why Join Us - We're looking for passionate, talented people who want to be part of a winning team. At Partnerize, you'll find a culture of collaboration, innovation, and respect. We're guided by our core values, and we're committed to creating an environment where everyone can do their best work. We also offer a competitive salary, generous benefits, and a flexible work environment that ...
Who We Are - At Partnerize, we're on a mission to transform the way businesses grow. We've built the leading partnership automation platform that empowers brands to discover, engage, and convert their audiences at scale. From affiliate marketing to influencer collaborations, we help our clients build and manage profitable partnerships that drive real results. We're a team of passionate problem-solvers who are dedicated to helping our clients win in the ever-evolving world of digital marketing. Why Join Us - We're looking for passionate, talented people who want to be part of a winning team. At Partnerize, you'll find a culture of collaboration, innovation, and respect. We're guided by our core values, and we're committed to creating an environment where everyone can do their best work. We also offer a competitive salary, generous benefits, and a flexible work environment that ...
Associate Software Engineer - Fixed Term Contract
Associate Software Engineer - Fixed Term Contract
Flutter Entertainment plc
Leeds, West Yorkshire
Competitive
Your tribe - Were looking for an Associate Software Engineer to join our team on a 12-month fixed-term contract. The Sports Super Tribe is comprised of 5 self-sufficient tribes, encompassing over 60 squads of Engineers, QA, and associated roles across Porto, Dublin and Leeds. Together, we are dedicated to delivering fast, distinctive, dynamic, and trusted sports betting experiences, each tribe driven by a clear vision to develop best-in-class customer experiences. As part of this role, youll be working with the Reward and Free to Play tribe, aiming to deliver fast, innovative, and trusted experiences that enhance player enjoyment, provide valuable rewards, and engage our customers by elevating the sport - Your team - Youll join a supportive team that understands the Play and Reward technology and is focused on delivering high-quality products that create engaging customer ...
Your tribe - Were looking for an Associate Software Engineer to join our team on a 12-month fixed-term contract. The Sports Super Tribe is comprised of 5 self-sufficient tribes, encompassing over 60 squads of Engineers, QA, and associated roles across Porto, Dublin and Leeds. Together, we are dedicated to delivering fast, distinctive, dynamic, and trusted sports betting experiences, each tribe driven by a clear vision to develop best-in-class customer experiences. As part of this role, youll be working with the Reward and Free to Play tribe, aiming to deliver fast, innovative, and trusted experiences that enhance player enjoyment, provide valuable rewards, and engage our customers by elevating the sport - Your team - Youll join a supportive team that understands the Play and Reward technology and is focused on delivering high-quality products that create engaging customer ...
Youll join our product and engineering team working on a Django back end and REST API that powers the Shortlister platform. Own and enhance our Django REST API, improving performance, security, maintainability and developer experience * Solid understanding of API design and HTTP fundamentals (authentication, headers, CORS, versioning)
Youll join our product and engineering team working on a Django back end and REST API that powers the Shortlister platform. Own and enhance our Django REST API, improving performance, security, maintainability and developer experience * Solid understanding of API design and HTTP fundamentals (authentication, headers, CORS, versioning)
Proven expertise in Web and RESTful API development
Proven expertise in Web and RESTful API development
Architect and manage scalable data pipelines within Microsoft Fabric, including Data Factory pipelines with REST API integrations, to automate and orchestrate multi-source ingestion workflows.
Architect and manage scalable data pipelines within Microsoft Fabric, including Data Factory pipelines with REST API integrations, to automate and orchestrate multi-source ingestion workflows.
AI Test Lead (AI Foundry) - 3 Days Work from Office - Leeds or Bradford
AI Test Lead (AI Foundry) - 3 Days Work from Office - Leeds or Bradford
WNS Global Services Ltd
Leeds, West Yorkshire
Competitive
Experience with designing and leading testing for complex digital or data-driven systems, including multi-component architectures, API-integrated platforms, event-driven workflows and systems operating under regulatory or high-assurance constraints.
Experience with designing and leading testing for complex digital or data-driven systems, including multi-component architectures, API-integrated platforms, event-driven workflows and systems operating under regulatory or high-assurance constraints.
Experience with API testing automation using Postman, Bruno, and REST Assured
Experience with API testing automation using Postman, Bruno, and REST Assured
As-a-Service: Develop and promote modular, API-driven patterns and approaches for services that promote re-use and ease of adoption.
As-a-Service: Develop and promote modular, API-driven patterns and approaches for services that promote re-use and ease of adoption.
)
API Integration Developer - Remote - £400+ per day
API Integration Developer - Remote - £400+ per day
Exalto Consulting ltd
Other
£400+ per day Inside IR35
API Integration Developer - Exalto Consulting are working with a client on a large-scale integration migration programme and is looking to bring in experienced API Integration Developers. You’ll be working across a mix of API-led and file-based integrations, helping to design, build and transition services in a way that is stable, clear and aligned with the wider platform architecture. * Building and supporting REST API integrations between systems * Working across both real-time (API) and file-based (SFTP/MFT) integration workflows * Strong experience building REST API integrations (typically 5+ years)
API Integration Developer - Exalto Consulting are working with a client on a large-scale integration migration programme and is looking to bring in experienced API Integration Developers. You’ll be working across a mix of API-led and file-based integrations, helping to design, build and transition services in a way that is stable, clear and aligned with the wider platform architecture. * Building and supporting REST API integrations between systems * Working across both real-time (API) and file-based (SFTP/MFT) integration workflows * Strong experience building REST API integrations (typically 5+ years)
)
Integration with SFTP, API-based connections, and secure channels
Integration with SFTP, API-based connections, and secure channels