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12 Contract API jobs in West Yorkshire + 20 miles
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Implementation Specialist – E-Invoicing
Implementation Specialist – E-Invoicing
Stackstudio Digital Ltd.
Manchester (M1)
From £300 to £350 per day
Job Title: Implementation Specialist E-Invoicing - Location: London- 1 day - Job Type: 6 months- Inside IR35 - Role overview - Are you looking for a role that will use your problem-solving skills, technical interests, and client communication skills to their full potential? We are seeking Implementation Specialists to join our e-invoicing Professional Services team and lead the technical implementation of our e-invoicing platform with global clients. This is the perfect role for a well-organised, collaborative, and analytical person who wants to grow their career within the software implementation space and work with a varied portfolio of multinational clients. You'll use your technical aptitude, excellent communication skills, and problem-solving abilities to tackle client configuration challenges and ensure the highest level of service.
Job Title: Implementation Specialist E-Invoicing - Location: London- 1 day - Job Type: 6 months- Inside IR35 - Role overview - Are you looking for a role that will use your problem-solving skills, technical interests, and client communication skills to their full potential? We are seeking Implementation Specialists to join our e-invoicing Professional Services team and lead the technical implementation of our e-invoicing platform with global clients. This is the perfect role for a well-organised, collaborative, and analytical person who wants to grow their career within the software implementation space and work with a varied portfolio of multinational clients. You'll use your technical aptitude, excellent communication skills, and problem-solving abilities to tackle client configuration challenges and ensure the highest level of service.
Role/Job title: Starburst Developer - Work Location: London (2 days in a week MUFG Client Office) The Role - Design and maintain data pipelines using Starburst and related technologies. Optimize query performance and resolve data processing bottlenecks. Manage databases to ensure high availability, reliability and security. Integrate Starburst with various data sources including cloud services and APIs. Monitor data pipelines and troubleshoot issues proactively. Collaborate with business users and stakeholders on data requirements. Maintain comprehensive and up-to-date documentation for data processes. Stay current with data engineering advancements and propose innovative solutions. Implement best practices for data quality assurance and testing. Your Profile - Essential skills/knowledge/experience: (Up to 10, Avoid repetition)
Role/Job title: Starburst Developer - Work Location: London (2 days in a week MUFG Client Office) The Role - Design and maintain data pipelines using Starburst and related technologies. Optimize query performance and resolve data processing bottlenecks. Manage databases to ensure high availability, reliability and security. Integrate Starburst with various data sources including cloud services and APIs. Monitor data pipelines and troubleshoot issues proactively. Collaborate with business users and stakeholders on data requirements. Maintain comprehensive and up-to-date documentation for data processes. Stay current with data engineering advancements and propose innovative solutions. Implement best practices for data quality assurance and testing. Your Profile - Essential skills/knowledge/experience: (Up to 10, Avoid repetition)
Role/Job title: Starburst Developer - Work Location: London (2 days in a week MUFG Client Office) The Role - Design and maintain data pipelines using Starburst and related technologies. Optimize query performance and resolve data processing bottlenecks. Manage databases to ensure high availability, reliability and security. Integrate Starburst with various data sources including cloud services and APIs. Monitor data pipelines and troubleshoot issues proactively. Collaborate with business users and stakeholders on data requirements. Maintain comprehensive and up-to-date documentation for data processes. Stay current with data engineering advancements and propose innovative solutions. Implement best practices for data quality assurance and testing. Your Profile - Essential skills/knowledge/experience: (Up to 10, Avoid repetition)
Role/Job title: Starburst Developer - Work Location: London (2 days in a week MUFG Client Office) The Role - Design and maintain data pipelines using Starburst and related technologies. Optimize query performance and resolve data processing bottlenecks. Manage databases to ensure high availability, reliability and security. Integrate Starburst with various data sources including cloud services and APIs. Monitor data pipelines and troubleshoot issues proactively. Collaborate with business users and stakeholders on data requirements. Maintain comprehensive and up-to-date documentation for data processes. Stay current with data engineering advancements and propose innovative solutions. Implement best practices for data quality assurance and testing. Your Profile - Essential skills/knowledge/experience: (Up to 10, Avoid repetition)
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Mobile Backend Developer - Kotlin and java - Manchester, UK
Mobile Backend Developer - Kotlin and java - Manchester, UK
Infoplus Technologies UK Ltd
Manchester (M4)
Unspecified
Preferred - Experience of building distributed scalable microservices using Java/Kotlin, Spring Boot, OAuth 2.0, Secure API design * Understanding of API design for mobile application with event driven architecture * Other technologies/areas: AWS, API Design, Automation testing
Preferred - Experience of building distributed scalable microservices using Java/Kotlin, Spring Boot, OAuth 2.0, Secure API design * Understanding of API design for mobile application with event driven architecture * Other technologies/areas: AWS, API Design, Automation testing
Senior Automation Tester - Flutter, Agentic AI & API Systems
Senior Automation Tester - Flutter, Agentic AI & API Systems
DeliveryApp
Manchester, Greater Manchester
Competitive
Expect to tackle complex challenges involving deep API validation, mobile performance strategy, and seamless CI/CD integration to protect our core mobile and backend ecosystem. The Role This role is the quality guardian of our mobile and API ecosystem. * API Testing: Postman / Newman * API Mastery: Deep API validation and contract testing.
Expect to tackle complex challenges involving deep API validation, mobile performance strategy, and seamless CI/CD integration to protect our core mobile and backend ecosystem. The Role This role is the quality guardian of our mobile and API ecosystem. * API Testing: Postman / Newman * API Mastery: Deep API validation and contract testing.
We are not looking for someone to build simple API wrappers. * API Design: REST and GraphQL
We are not looking for someone to build simple API wrappers. * API Design: REST and GraphQL
Strong database and API development experience
Strong database and API development experience
Senior / Mid Level Software Developers
Senior / Mid Level Software Developers
James and James Fulfilment
Leeds, West Yorkshire
£50,000 - £70,000 a year
Fresh off our merger into the QLS Group, J&J Global is now the largest independent ecommerce fulfilment provider in Europe. But were just getting started. Were looking for Senior and Mid-Level Developers to join a newly formed team focused on evolving our proprietary fulfilment platform. If youre looking to own your work and solve complex problems in real-time logistics - from intelligent inventory to seamless global returns - we want to hear from you. What youll be doing * You will develop, maintain and enhance the core components of our fulfilment software. * Developing and scaling the backend services and APIs that drive our order processing, inventory, and warehouse workflows * Building sleek, responsive UIs that help our internal operations teams and external partners move faster and smarter
Fresh off our merger into the QLS Group, J&J Global is now the largest independent ecommerce fulfilment provider in Europe. But were just getting started. Were looking for Senior and Mid-Level Developers to join a newly formed team focused on evolving our proprietary fulfilment platform. If youre looking to own your work and solve complex problems in real-time logistics - from intelligent inventory to seamless global returns - we want to hear from you. What youll be doing * You will develop, maintain and enhance the core components of our fulfilment software. * Developing and scaling the backend services and APIs that drive our order processing, inventory, and warehouse workflows * Building sleek, responsive UIs that help our internal operations teams and external partners move faster and smarter
Senior / Mid Level Software Developers
Senior / Mid Level Software Developers
James and James Fulfilment
Manchester, Greater Manchester
£50,000 - £70,000 a year
Fresh off our merger into the QLS Group, J&J Global is now the largest independent ecommerce fulfilment provider in Europe. But were just getting started. Were looking for Senior and Mid-Level Developers to join a newly formed team focused on evolving our proprietary fulfilment platform. If youre looking to own your work and solve complex problems in real-time logistics - from intelligent inventory to seamless global returns - we want to hear from you. What youll be doing * You will develop, maintain and enhance the core components of our fulfilment software. * Developing and scaling the backend services and APIs that drive our order processing, inventory, and warehouse workflows * Building sleek, responsive UIs that help our internal operations teams and external partners move faster and smarter
Fresh off our merger into the QLS Group, J&J Global is now the largest independent ecommerce fulfilment provider in Europe. But were just getting started. Were looking for Senior and Mid-Level Developers to join a newly formed team focused on evolving our proprietary fulfilment platform. If youre looking to own your work and solve complex problems in real-time logistics - from intelligent inventory to seamless global returns - we want to hear from you. What youll be doing * You will develop, maintain and enhance the core components of our fulfilment software. * Developing and scaling the backend services and APIs that drive our order processing, inventory, and warehouse workflows * Building sleek, responsive UIs that help our internal operations teams and external partners move faster and smarter
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.
Senior Laravel Developer - High-Performance Backend Architect - On-Site Only
Senior Laravel Developer - High-Performance Backend Architect - On-Site Only
DeliveryApp
Manchester, Greater Manchester
Competitive
Expect to tackle complex problems involving high-traffic transaction systems, deep database optimization, and robust API development to power our core operations.
Expect to tackle complex problems involving high-traffic transaction systems, deep database optimization, and robust API development to power our core operations.
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.
12 exact matches jobs are outside your preferred location
Role Title: API Security Architect "We are looking for an API Security Architect to define, design, and oversee the implementation of enterprise-grade API security architecture. * Design end-to-end API security architecture across cloud and on-premise environments. * Define API security standards covering authentication, authorization, encryption, and threat protection. * Lead architectural reviews, threat modelling, and risk assessments for API integrations. * Select, architect, and optimize API gateways, WAFs, and security controls. * Provide security governance for API development, lifecycle management, and CI/CD practices. * Oversee remediation strategies for API vulnerabilities and guide architecture improvements. * Proven experience in API security architecture within large-scale environments. * Expertise in API gateways (Apigee, Azure API Management, Kong, Mulesoft).
Role Title: API Security Architect "We are looking for an API Security Architect to define, design, and oversee the implementation of enterprise-grade API security architecture. * Design end-to-end API security architecture across cloud and on-premise environments. * Define API security standards covering authentication, authorization, encryption, and threat protection. * Lead architectural reviews, threat modelling, and risk assessments for API integrations. * Select, architect, and optimize API gateways, WAFs, and security controls. * Provide security governance for API development, lifecycle management, and CI/CD practices. * Oversee remediation strategies for API vulnerabilities and guide architecture improvements. * Proven experience in API security architecture within large-scale environments. * Expertise in API gateways (Apigee, Azure API Management, Kong, Mulesoft).
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Initial 9 Month Contract - 2 days per week on site (remainder working from home) Warton, Lancashire £72.54 Per Hour (Umbrella Rate - Inside IR35) The Role * Lead the design and implementation of Teamcenter architecture, including Database Server, Application Server, Web Server, Dispatcher, and related components. * Define PLM system architecture aligned with enterprise digital transformation goals. * Work with TOGAF, DODAF, ArchiMate or similar architecture frameworks to build enterprise PLM roadmaps. * Enable and implement end-to-end Digital Thread / Digital Twin solutions across engineering, manufacturing, and service domains. * Develop and consume web services and SOA APIs for downstream and upstream system integrations. * Develop custom Teamcenter server-side extensions, handlers, and business logic using Java, C++, or C#.
Initial 9 Month Contract - 2 days per week on site (remainder working from home) Warton, Lancashire £72.54 Per Hour (Umbrella Rate - Inside IR35) The Role * Lead the design and implementation of Teamcenter architecture, including Database Server, Application Server, Web Server, Dispatcher, and related components. * Define PLM system architecture aligned with enterprise digital transformation goals. * Work with TOGAF, DODAF, ArchiMate or similar architecture frameworks to build enterprise PLM roadmaps. * Enable and implement end-to-end Digital Thread / Digital Twin solutions across engineering, manufacturing, and service domains. * Develop and consume web services and SOA APIs for downstream and upstream system integrations. * Develop custom Teamcenter server-side extensions, handlers, and business logic using Java, C++, or C#.
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Derbyshire | Hybrid - c£75,000 - Fixed Term Contract | for 6 months - 3 days a week - Part time - This is a hands-on consultancy role sitting at the intersection of IT and business operations, working closely with Finance, Sales, Operations and Account Management to make sure these systems are configured, stable, and embedded for the long term. * Administer and optimise NetSuite across modules including SA, GL, AR, AP, FAM, CRM, WMS, Projects and more * Conduct structured process reviews with business teams and translate requirements into system design and configuration * Build and maintain dashboards, saved searches, and reports that drive genuine business insight * Support ETL activities and oversee integrations with internal and third-party platforms * Deliver targeted training and documentation to upskill internal teams for long-term ownership
Derbyshire | Hybrid - c£75,000 - Fixed Term Contract | for 6 months - 3 days a week - Part time - This is a hands-on consultancy role sitting at the intersection of IT and business operations, working closely with Finance, Sales, Operations and Account Management to make sure these systems are configured, stable, and embedded for the long term. * Administer and optimise NetSuite across modules including SA, GL, AR, AP, FAM, CRM, WMS, Projects and more * Conduct structured process reviews with business teams and translate requirements into system design and configuration * Build and maintain dashboards, saved searches, and reports that drive genuine business insight * Support ETL activities and oversee integrations with internal and third-party platforms * Deliver targeted training and documentation to upskill internal teams for long-term ownership
FEATURED
Initial 9 Month Contract - 2 days per week on site (remainder working from home) Warton, Lancashire £72.54 Per Hour (Umbrella Rate - Inside IR35) The Role * Lead the design and implementation of Teamcenter architecture, including Database Server, Application Server, Web Server, Dispatcher, and related components. * Define PLM system architecture aligned with enterprise digital transformation goals. * Work with TOGAF, DODAF, ArchiMate or similar architecture frameworks to build enterprise PLM roadmaps. * Enable and implement end-to-end Digital Thread / Digital Twin solutions across engineering, manufacturing, and service domains. * Develop and consume web services and SOA APIs for downstream and upstream system integrations. * Develop custom Teamcenter server-side extensions, handlers, and business logic using Java, C++, or C#.
Initial 9 Month Contract - 2 days per week on site (remainder working from home) Warton, Lancashire £72.54 Per Hour (Umbrella Rate - Inside IR35) The Role * Lead the design and implementation of Teamcenter architecture, including Database Server, Application Server, Web Server, Dispatcher, and related components. * Define PLM system architecture aligned with enterprise digital transformation goals. * Work with TOGAF, DODAF, ArchiMate or similar architecture frameworks to build enterprise PLM roadmaps. * Enable and implement end-to-end Digital Thread / Digital Twin solutions across engineering, manufacturing, and service domains. * Develop and consume web services and SOA APIs for downstream and upstream system integrations. * Develop custom Teamcenter server-side extensions, handlers, and business logic using Java, C++, or C#.
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As a Data Platform Engineer in a highly regulated environment, you will be responsible for designing, building, and maintaining secure and scalable data infrastructure that supports both cloud and on premises platforms. You will play a key role in ensuring that all data systems comply with industry regulations and security standards while enabling efficient access for analytics and operational teams. A strong command of Apache NiFi is essential for this role. You will design, implement, and maintain data flows using NiFi, ensuring accurate, efficient, and secure data ingestion, transformation, and delivery. You should be adept at identifying and resolving issues within NiFi flows, managing performance bottlenecks, and implementing robust error handling strategies. You’ll work closely with cross-functional teams including data architects, compliance officers, and ...
As a Data Platform Engineer in a highly regulated environment, you will be responsible for designing, building, and maintaining secure and scalable data infrastructure that supports both cloud and on premises platforms. You will play a key role in ensuring that all data systems comply with industry regulations and security standards while enabling efficient access for analytics and operational teams. A strong command of Apache NiFi is essential for this role. You will design, implement, and maintain data flows using NiFi, ensuring accurate, efficient, and secure data ingestion, transformation, and delivery. You should be adept at identifying and resolving issues within NiFi flows, managing performance bottlenecks, and implementing robust error handling strategies. You’ll work closely with cross-functional teams including data architects, compliance officers, and ...
PREMIUM
Initial 9 Month Contract - 2 days per week on site (remainder working from home) Warton, Lancashire £72.54 Per Hour (Umbrella Rate - Inside IR35) The Role * Lead the design and implementation of Teamcenter architecture, including Database Server, Application Server, Web Server, Dispatcher, and related components. * Define PLM system architecture aligned with enterprise digital transformation goals. * Work with TOGAF, DODAF, ArchiMate or similar architecture frameworks to build enterprise PLM roadmaps. * Enable and implement end-to-end Digital Thread / Digital Twin solutions across engineering, manufacturing, and service domains. * Develop and consume web services and SOA APIs for downstream and upstream system integrations. * Develop custom Teamcenter server-side extensions, handlers, and business logic using Java, C++, or C#.
Initial 9 Month Contract - 2 days per week on site (remainder working from home) Warton, Lancashire £72.54 Per Hour (Umbrella Rate - Inside IR35) The Role * Lead the design and implementation of Teamcenter architecture, including Database Server, Application Server, Web Server, Dispatcher, and related components. * Define PLM system architecture aligned with enterprise digital transformation goals. * Work with TOGAF, DODAF, ArchiMate or similar architecture frameworks to build enterprise PLM roadmaps. * Enable and implement end-to-end Digital Thread / Digital Twin solutions across engineering, manufacturing, and service domains. * Develop and consume web services and SOA APIs for downstream and upstream system integrations. * Develop custom Teamcenter server-side extensions, handlers, and business logic using Java, C++, or C#.
Integration with SFTP, API-based connections, and secure channels
Integration with SFTP, API-based connections, and secure channels
Hands-on Experience working with Business Rules, Client Scripts, UI Policies, UI Scripts, UI Actions, UI Pages, Script Includes, Access Control Lists, API's, Service Portal etc...
Hands-on Experience working with Business Rules, Client Scripts, UI Policies, UI Scripts, UI Actions, UI Pages, Script Includes, Access Control Lists, API's, Service Portal etc...
Experience with Gurobi Python API (gurobipy)
Experience with Gurobi Python API (gurobipy)
Written and maintained code that interfaces with the Kubernetes API, such as operators, controllers, add-ons, etc.
Written and maintained code that interfaces with the Kubernetes API, such as operators, controllers, add-ons, etc.
Ataccama Solution Architect (Contract) at Billigence, Remote (UK). £Contract Rate
Ataccama Solution Architect (Contract) at Billigence, Remote (UK). £Contract Rate
Billigence
UK
Competitive
Contract Description - Who are we? Billigence is a boutique data consultancy with global outreach & clientele, transforming the way organizations work with data. We leverage proven, cutting-edge technologies to design, tailor, and implement advanced Business Intelligence solutions with high added value across a wide range of applications from process digitization through to Cloud Data Warehousing, Visualisation, Data Science and Engineering, or Data Governance. Headquartered in Sydney, Australia with offices around the world, we help clients navigate difficult business conditions, remove inefficiencies, and enable scalable adoption of analytics culture. As an Ataccama Solution Architect, you will lead the technical architecture and delivery of enterprise-scale Ataccama ONE implementations across Data Quality, Metadata Management, Governance, and (where applicable) MDM ...
Contract Description - Who are we? Billigence is a boutique data consultancy with global outreach & clientele, transforming the way organizations work with data. We leverage proven, cutting-edge technologies to design, tailor, and implement advanced Business Intelligence solutions with high added value across a wide range of applications from process digitization through to Cloud Data Warehousing, Visualisation, Data Science and Engineering, or Data Governance. Headquartered in Sydney, Australia with offices around the world, we help clients navigate difficult business conditions, remove inefficiencies, and enable scalable adoption of analytics culture. As an Ataccama Solution Architect, you will lead the technical architecture and delivery of enterprise-scale Ataccama ONE implementations across Data Quality, Metadata Management, Governance, and (where applicable) MDM ...
Role & Responsibilities - Role Overview - As a Senior Backend Engineer at Grabyo, you will have significant exposure to the backend APIs and services that power the core of the Grabyo Platform. Some days, you might be part of the team behind key features like live transcoding or automated closed captioning. Other days, you will be key in architecting our platform to improve our path to a scalable, microservices-based platform. Java, Spring, Go, serverless architectures, microservices, auto-scaling and auto-recovery, AWS SAM, ECS Fargate, DynamoDB, media processing, Terraform these are a few of the state-of-the-art techs you will be working with. To make sure you keep growing your knowledge around tech, we provide you with professional development opportunities like Hackathons, a dedicated development budget, and pair programming days to improve our automated testing culture.
Role & Responsibilities - Role Overview - As a Senior Backend Engineer at Grabyo, you will have significant exposure to the backend APIs and services that power the core of the Grabyo Platform. Some days, you might be part of the team behind key features like live transcoding or automated closed captioning. Other days, you will be key in architecting our platform to improve our path to a scalable, microservices-based platform. Java, Spring, Go, serverless architectures, microservices, auto-scaling and auto-recovery, AWS SAM, ECS Fargate, DynamoDB, media processing, Terraform these are a few of the state-of-the-art techs you will be working with. To make sure you keep growing your knowledge around tech, we provide you with professional development opportunities like Hackathons, a dedicated development budget, and pair programming days to improve our automated testing culture.
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Senior Python Engineer, £700/day (Outside IR35)
Senior Python Engineer, £700/day (Outside IR35)
Morson Edge
City Centre, Manchester (M2), m1
£600 - 700 per day
Opportunity for a Senior Python Engineer to work remotely for a UK based AI scale-up on an initial 6-month contract outside IR35. * Python, TypeScript - You'd join a high-performing and autonomous product team responsible for building cloud-native, event-driven systems in a collaborative DevOps environment. The team is responsible for all aspects of the product they work on, from design through to development, testing, deployment and supporting systems in production, so you should expect to apply XP techniques like TDD and SOLID and be comfortable with practices like IaC, CI/CD and Observability. * FastAPI, Django, Vue * MongoDB, DynamoDB * Kubernetes * GCP, AWS - In return they're offering initial 6-month contracts outside IR35 paying up to £700/day. If you're interested and would like to know more, please apply through this advert and I'll be in touch.
Opportunity for a Senior Python Engineer to work remotely for a UK based AI scale-up on an initial 6-month contract outside IR35. * Python, TypeScript - You'd join a high-performing and autonomous product team responsible for building cloud-native, event-driven systems in a collaborative DevOps environment. The team is responsible for all aspects of the product they work on, from design through to development, testing, deployment and supporting systems in production, so you should expect to apply XP techniques like TDD and SOLID and be comfortable with practices like IaC, CI/CD and Observability. * FastAPI, Django, Vue * MongoDB, DynamoDB * Kubernetes * GCP, AWS - In return they're offering initial 6-month contracts outside IR35 paying up to £700/day. If you're interested and would like to know more, please apply through this advert and I'll be in touch.
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