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4 Contract API jobs in Central London + 20 miles
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Golang Consultant / Full Stack Engineer/ Web Solutions Engineer
Golang Consultant / Full Stack Engineer/ Web Solutions Engineer
Harvey Nash
SW1, South West London
Negotiable
Job Title: Golang Consultant/Full Stack Engineer - Location: Address: 1-13 St Giles High St, London WC2H 8AG - Mode of working: Hybrid (3 Days in the Office) Duration: 6+ Months contract initially - As a Web Solutions Engineer (WSE) you are responsible for building, designing, and deploying scalable, modern, web applications. You deliver full pieces of functionality on moderately complex projects with minimal assistance. You architect high quality web applications, and design key tools and systems that support said web applications. * 3+ years experience writing JavaScript or TypeScript, Golang, and/or SQL, Angular * 3+ years experience developing resource oriented APIs * 3+ years experience designing and debugging databases * Experience in multiple general purpose programming languages and building large, scaled full stack web solutions. * Microservice design and imp
Job Title: Golang Consultant/Full Stack Engineer - Location: Address: 1-13 St Giles High St, London WC2H 8AG - Mode of working: Hybrid (3 Days in the Office) Duration: 6+ Months contract initially - As a Web Solutions Engineer (WSE) you are responsible for building, designing, and deploying scalable, modern, web applications. You deliver full pieces of functionality on moderately complex projects with minimal assistance. You architect high quality web applications, and design key tools and systems that support said web applications. * 3+ years experience writing JavaScript or TypeScript, Golang, and/or SQL, Angular * 3+ years experience developing resource oriented APIs * 3+ years experience designing and debugging databases * Experience in multiple general purpose programming languages and building large, scaled full stack web solutions. * Microservice design and imp
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Familiarity with tools for working with Large Language Models via API or in a local context (e.g. HuggingFace transformers).
Familiarity with tools for working with Large Language Models via API or in a local context (e.g. HuggingFace transformers).
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Experience with Microsoft Azure services, particularly Azure OpenAI, Azure AD, and integration services (e.g., Logic Apps, API Management). * Expertise in Microsoft Graph API, Microsoft 365 compliance and security, and identity management.
Experience with Microsoft Azure services, particularly Azure OpenAI, Azure AD, and integration services (e.g., Logic Apps, API Management). * Expertise in Microsoft Graph API, Microsoft 365 compliance and security, and identity management.
NEWFEATURED
Join the API Revolution at GraviteeWhere Innovation Meets Growth - Since our beginnings in 2015, Gravitee has grown into a global force, recognized as a 2024 Gartner Magic Quadrant Leader for API Management. What started with four developers challenging the complexities of APIs has evolved into a revolutionary platform powering API and event stream ecosystems worldwide. Be part of a team thats redefining whats possible in API management, and shaping the future of digital transformation. * Experience working in middleware technology, ideally within API management, IAM or integration * Ability to work for one of the fastest-growing companies and alongside some of the most talented people in the API technology sector
Join the API Revolution at GraviteeWhere Innovation Meets Growth - Since our beginnings in 2015, Gravitee has grown into a global force, recognized as a 2024 Gartner Magic Quadrant Leader for API Management. What started with four developers challenging the complexities of APIs has evolved into a revolutionary platform powering API and event stream ecosystems worldwide. Be part of a team thats redefining whats possible in API management, and shaping the future of digital transformation. * Experience working in middleware technology, ideally within API management, IAM or integration * Ability to work for one of the fastest-growing companies and alongside some of the most talented people in the API technology sector
66 exact matches jobs are outside your preferred location
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Strong experience with RESTful API integrations * Familiarity with authentication protocols (OAuth2, API keys)
Strong experience with RESTful API integrations * Familiarity with authentication protocols (OAuth2, API keys)
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Tester-Salesforce- Azure Integration-Salesforce-Cloud
Tester-Salesforce- Azure Integration-Salesforce-Cloud
InterQuest Group (UK) Limited
London
£400 per day
Strong hands-on knowledge of Azure integration services (Logic Apps, Azure Functions, Service Bus, API * Experience with REST API testing, Swagger/OpenAPI validation, and API test automation. * Experience with contract testing frameworks (Pact) and API mocking/stubbing approaches.
Strong hands-on knowledge of Azure integration services (Logic Apps, Azure Functions, Service Bus, API * Experience with REST API testing, Swagger/OpenAPI validation, and API test automation. * Experience with contract testing frameworks (Pact) and API mocking/stubbing approaches.
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Design, develop, test and deliver application change to meet the needs of the FI Algo trading desks - this will include both API and schema design, and a significant amount of work on real-time KDB+ processes.
Design, develop, test and deliver application change to meet the needs of the FI Algo trading desks - this will include both API and schema design, and a significant amount of work on real-time KDB+ processes.
PREMIUM
Role Title: ENET Engineer - 6 months - Rate: £506 - Hybrid - 3 days on site in London - Role Summary - UK ITS AS (ENET) Engineer will be a member of the team that is responsible for the support and management of the of the infrastructure that supports the Bank's electronic business (known within other banks as Electronic Trading or Pre-Trade). It also involves coordination of multiple teams globally to deliver the infrastructure, OS tuning expertise to optimize the performance of Forex (FX) and Fixed Income (FI) applications within the Bank. * Expert-level knowledge of the Elastic Stack (Elasticsearch, Logstash, Kibana, Beats), with proven experience in architecting, deploying, and managing ELK infrastructure across distributed, high-performance environments. * Experience integrating ELK with packet capture/analysis tools to enhance observability of real-time systems.
Role Title: ENET Engineer - 6 months - Rate: £506 - Hybrid - 3 days on site in London - Role Summary - UK ITS AS (ENET) Engineer will be a member of the team that is responsible for the support and management of the of the infrastructure that supports the Bank's electronic business (known within other banks as Electronic Trading or Pre-Trade). It also involves coordination of multiple teams globally to deliver the infrastructure, OS tuning expertise to optimize the performance of Forex (FX) and Fixed Income (FI) applications within the Bank. * Expert-level knowledge of the Elastic Stack (Elasticsearch, Logstash, Kibana, Beats), with proven experience in architecting, deploying, and managing ELK infrastructure across distributed, high-performance environments. * Experience integrating ELK with packet capture/analysis tools to enhance observability of real-time systems.
NEWPREMIUM
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AMS is a global workforce solutions partner committed to creating inclusive, dynamic, and future-ready workplaces. We help organisations adapt, grow, and thrive in an ever-evolving world by building, shaping, and optimising diverse talent strategies. Our Contingent Workforce Solutions (CWS) is one of our service offerings. Acting as an extension of their recruitment teams, we connect them with skilled interim and temporary professionals, fostering workplaces where everyone can contribute and succeed. Our client, a major UK retail bank, provides every day banking services to over 17 million retail customers. The banks expertise and services span across Business Services, Corporate banking, Wealth Management, Group Functions, Retail and Investment Banking. On behalf of this organisation, AMS are looking for a Project Manager for a 6 Month contract based Remotely.
AMS is a global workforce solutions partner committed to creating inclusive, dynamic, and future-ready workplaces. We help organisations adapt, grow, and thrive in an ever-evolving world by building, shaping, and optimising diverse talent strategies. Our Contingent Workforce Solutions (CWS) is one of our service offerings. Acting as an extension of their recruitment teams, we connect them with skilled interim and temporary professionals, fostering workplaces where everyone can contribute and succeed. Our client, a major UK retail bank, provides every day banking services to over 17 million retail customers. The banks expertise and services span across Business Services, Corporate banking, Wealth Management, Group Functions, Retail and Investment Banking. On behalf of this organisation, AMS are looking for a Project Manager for a 6 Month contract based Remotely.
NEWPREMIUM
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We're looking for an experienced Engineering Manager to oversee the technical migration of a Product Information Management (PIM) system - namely STIBO STEP - from an on-premise setup to a SaaS solution. This role requires close collaboration with internal product and engineering teams, as well as with external partners. * 10+ years in software engineering and delivery, with at least 5 years in leadership, principal, or managerial roles. * Strong expertise in PIM/MDM platforms, with hands-on experience in STIBO STEP essential. * Proven track record migrating enterprise applications to SaaS, ideally within large-scale, complex environments. * Languages: Java 17+ (Java 21 preferred) * Frameworks: Micronaut (preferred), Spring Boot * Testing: JUnit, Mockito * Build Tools: Gradle * Data & Messaging: Kafka, MongoDB * APIs: GraphQL Federation, REST
We're looking for an experienced Engineering Manager to oversee the technical migration of a Product Information Management (PIM) system - namely STIBO STEP - from an on-premise setup to a SaaS solution. This role requires close collaboration with internal product and engineering teams, as well as with external partners. * 10+ years in software engineering and delivery, with at least 5 years in leadership, principal, or managerial roles. * Strong expertise in PIM/MDM platforms, with hands-on experience in STIBO STEP essential. * Proven track record migrating enterprise applications to SaaS, ideally within large-scale, complex environments. * Languages: Java 17+ (Java 21 preferred) * Frameworks: Micronaut (preferred), Spring Boot * Testing: JUnit, Mockito * Build Tools: Gradle * Data & Messaging: Kafka, MongoDB * APIs: GraphQL Federation, REST
We are a fast-growing data-as-a-service provider helping businesses access high-quality business data via a robust REST API. As a Sales Engineer, you will work closely with our sales team to identify customer needs, explore potential solutions using our API, and ensure a smooth technical onboarding experience. * Explain API capabilities, data models, and integration workflows in a clear, customer-centric way * Evaluate customer challenges and propose tailored solutions using our REST API and MCP * Deliver demos, proof-of-concept support, and API walkthroughs * Solid understanding of APIs, REST, JSON, authentication (OAuth, API keys), and data workflows * Comfortable debugging basic integration issues (e.g., API calls, response errors, authentication p
We are a fast-growing data-as-a-service provider helping businesses access high-quality business data via a robust REST API. As a Sales Engineer, you will work closely with our sales team to identify customer needs, explore potential solutions using our API, and ensure a smooth technical onboarding experience. * Explain API capabilities, data models, and integration workflows in a clear, customer-centric way * Evaluate customer challenges and propose tailored solutions using our REST API and MCP * Deliver demos, proof-of-concept support, and API walkthroughs * Solid understanding of APIs, REST, JSON, authentication (OAuth, API keys), and data workflows * Comfortable debugging basic integration issues (e.g., API calls, response errors, authentication p
Knowledge of API design and development best practices
Knowledge of API design and development best practices
What we are building - Mimica's mission is to empower enterprises, teams, and individuals to reclaim their most precious resource time and work more efficiently, with greater purpose and impact. Our AI-powered task mining observes employee actions across the desktop and categorizes them into detailed process maps. Mimicas process intelligence highlights inefficiencies, prioritizes improvements based on ROI, recommends the optimal technology for automation (RPA, intelligent document processing, GenAI), and provides a blueprint for building new automations and transforming work. Our approach to engineering * We prioritize customer needs first * We work in small, project-based teams * We have flexibility in terms of the problems we work on * We own the full lifecycle of our projects * We avoid silos and encourage taking up tasks in new areas * We balance quality and velo
What we are building - Mimica's mission is to empower enterprises, teams, and individuals to reclaim their most precious resource time and work more efficiently, with greater purpose and impact. Our AI-powered task mining observes employee actions across the desktop and categorizes them into detailed process maps. Mimicas process intelligence highlights inefficiencies, prioritizes improvements based on ROI, recommends the optimal technology for automation (RPA, intelligent document processing, GenAI), and provides a blueprint for building new automations and transforming work. Our approach to engineering * We prioritize customer needs first * We work in small, project-based teams * We have flexibility in terms of the problems we work on * We own the full lifecycle of our projects * We avoid silos and encourage taking up tasks in new areas * We balance quality and velo
Experience working with Active Directory, SAML/SCIM, API's, Python, and other coding languages is a plus.
Experience working with Active Directory, SAML/SCIM, API's, Python, and other coding languages is a plus.
Experience with microservice and API-based development, including designing and implementing REST and GraphQL APIs, and understanding API security patterns.
Experience with microservice and API-based development, including designing and implementing REST and GraphQL APIs, and understanding API security patterns.
Oversee the data flows and integrations between Loyalty Management, Marketing Cloud, and other 3rd party platforms, managing API calls and ensuring data integrity.
Oversee the data flows and integrations between Loyalty Management, Marketing Cloud, and other 3rd party platforms, managing API calls and ensuring data integrity.
Liaise and collaborate with internal stakeholders such as TAs, SMEs and other discipline Engineers to deliver structural engineering services ensuring compliance with industry design standards (ISO, API, DNV, NORSOK, etc.) and certification requirements.
Liaise and collaborate with internal stakeholders such as TAs, SMEs and other discipline Engineers to deliver structural engineering services ensuring compliance with industry design standards (ISO, API, DNV, NORSOK, etc.) and certification requirements.
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Strong knowledge of mechanical equipment design codes (ASME, ANSI, API, PIP, NACE).
Strong knowledge of mechanical equipment design codes (ASME, ANSI, API, PIP, NACE).
API development/consulting experience
API development/consulting experience
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Facilitate Onboarding: You'll be responsible for the technical onboarding of new clients, guiding them through API documentation, troubleshooting integration issues, and ensuring a seamless transition.
Facilitate Onboarding: You'll be responsible for the technical onboarding of new clients, guiding them through API documentation, troubleshooting integration issues, and ensuring a seamless transition.
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Youre Hands-On One minute you're analyzing a payment rejection report, the next youre configuring API credentials for a new client. * API Client Support & Onboarding: Support new clients in understanding and onboarding with the Navro API endpoints. * System Administration & Support: Configure API credentials for clients, provide technical user access support via back-end systems like Keycloak, and manage sandbox environments. * Experience with API integration and troubleshooting.
Youre Hands-On One minute you're analyzing a payment rejection report, the next youre configuring API credentials for a new client. * API Client Support & Onboarding: Support new clients in understanding and onboarding with the Navro API endpoints. * System Administration & Support: Configure API credentials for clients, provide technical user access support via back-end systems like Keycloak, and manage sandbox environments. * Experience with API integration and troubleshooting.
All relevant international Codes and API/ISO standards for equipment installed on packages in both FEED and EPC environments.
All relevant international Codes and API/ISO standards for equipment installed on packages in both FEED and EPC environments.
All relevant international Codes and API/ISO standards for equipment installed on packages in both FEED and EPC environments.
All relevant international Codes and API/ISO standards for equipment installed on packages in both FEED and EPC environments.
Define and Measure Success: Establish and track key technical and business metrics like API latency, developer satisfaction, integration time, and platform adoption rates to ensure our strategy is impactful.
Define and Measure Success: Establish and track key technical and business metrics like API latency, developer satisfaction, integration time, and platform adoption rates to ensure our strategy is impactful.
About us - Climate X is a purpose-driven technology company, backed by GV (Google Ventures), Western Technologies (early investors in Meta, Google, Palantir), Commerz Ventures, Pale Blue Dot, Deloitte, and other world-class investors. We're a wonderfully diverse, growing team with physical offices in London and New York City. Demand for Climate X is growing fast, and we need to build our team! You'll be at the front of a nascent industry, working as part of a fantastic and diverse team, doing things that you can be proud of. We're excited to have the opportunity to speak with you during this process. Our mission - To deepen the understanding of our changing planet and inspire meaningful action. What we do * We're helping the world become more resilient to the impacts of physical climate risks (including floods, fires, storms and more).
About us - Climate X is a purpose-driven technology company, backed by GV (Google Ventures), Western Technologies (early investors in Meta, Google, Palantir), Commerz Ventures, Pale Blue Dot, Deloitte, and other world-class investors. We're a wonderfully diverse, growing team with physical offices in London and New York City. Demand for Climate X is growing fast, and we need to build our team! You'll be at the front of a nascent industry, working as part of a fantastic and diverse team, doing things that you can be proud of. We're excited to have the opportunity to speak with you during this process. Our mission - To deepen the understanding of our changing planet and inspire meaningful action. What we do * We're helping the world become more resilient to the impacts of physical climate risks (including floods, fires, storms and more).
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