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Locations
Locations
Salaries
Date posted
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Job types
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- The City, City (EC4)
- Grazeley
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- Ireland
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- City of London
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- Reading
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- Basingstoke
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13 Contract API jobs in Wallingford + 20 miles
353 exact matches jobs are outside your preferred location
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Azure Cosmos DB (SQL/Mongo API), NoSQL modelling
Azure Cosmos DB (SQL/Mongo API), NoSQL modelling
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TypeScript - strongly typed, enterprise-grade API development
TypeScript - strongly typed, enterprise-grade API development
FEATURED
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Strong grasp of databases (SQL/NoSQL) and API integrations
Strong grasp of databases (SQL/NoSQL) and API integrations
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Act as the champion for TMF ODA and Open API principles across Energy Services Platform. Strong experience designing and implementing solutions using TM Forum Open APIs and a deep understanding of the ODA and Open API frameworks - Proficiency in RESTful API design, JSON, OpenAPI/Swagger specifications, microservices architecture, and cloud-native deployment models (Docker, Kubernetes, public/hybrid cloud platforms)
Act as the champion for TMF ODA and Open API principles across Energy Services Platform. Strong experience designing and implementing solutions using TM Forum Open APIs and a deep understanding of the ODA and Open API frameworks - Proficiency in RESTful API design, JSON, OpenAPI/Swagger specifications, microservices architecture, and cloud-native deployment models (Docker, Kubernetes, public/hybrid cloud platforms)
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Knowledge of ServiceNow scripting (JavaScript, Glide API) a plus.
Knowledge of ServiceNow scripting (JavaScript, Glide API) a plus.
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We are looking for a strong Full Stack Developer to deliver a short-term project involving a static website build, API scraping, and structured JSON output. * Develop API scraping scripts to extract structured data reliably * Proven experience building API scrapers (Axios, Puppeteer, BeautifulSoup, Cheerio, or similar) * Knowledge of API rate limits and bypass methods
We are looking for a strong Full Stack Developer to deliver a short-term project involving a static website build, API scraping, and structured JSON output. * Develop API scraping scripts to extract structured data reliably * Proven experience building API scrapers (Axios, Puppeteer, BeautifulSoup, Cheerio, or similar) * Knowledge of API rate limits and bypass methods
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Optimize inference performance and cost (e.g., model compression, quantization, API optimization).
Optimize inference performance and cost (e.g., model compression, quantization, API optimization).
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3 or more years' experience of technical testing micro services solutions, at a service and API layer specifically * Hands-on understanding and experience with API testing * Ability to develop functional tests, which exercise the UI, API and DB layer
3 or more years' experience of technical testing micro services solutions, at a service and API layer specifically * Hands-on understanding and experience with API testing * Ability to develop functional tests, which exercise the UI, API and DB layer
FEATURED
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Collaborate effectively with other technical groupssuch as API teamscontributing to low-level API design decisions
Collaborate effectively with other technical groupssuch as API teamscontributing to low-level API design decisions
Familiarity with microservices, API integration patterns and cloud concepts such as AWS.
Familiarity with microservices, API integration patterns and cloud concepts such as AWS.
NEW
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Excellent opportunity for an experienced .NET Backend Developer to join a rapidly growing business in London, where you will play a key role in shaping the backend systems, API architecture, and cloud infrastructure that support the company's technology roadmap.
Excellent opportunity for an experienced .NET Backend Developer to join a rapidly growing business in London, where you will play a key role in shaping the backend systems, API architecture, and cloud infrastructure that support the company's technology roadmap.
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Excellent opportunity for an experienced .NET Backend Developer to join a rapidly growing business in London, where you will play a key role in shaping the backend systems, API architecture, and cloud infrastructure that support the company's technology roadmap.
Excellent opportunity for an experienced .NET Backend Developer to join a rapidly growing business in London, where you will play a key role in shaping the backend systems, API architecture, and cloud infrastructure that support the company's technology roadmap.
PREMIUM
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Azure Cosmos DB Admin and Developer
Azure Cosmos DB Admin and Developer
Vallum Associates Limited
The City, City of London (EC4), EC4M
£500 per hour
This role involves architecting cloud-native solutions using Azure Cosmos DB (SQL API and Mongo API), implementing effective partitioning strategies, indexing, and consistency models to support real-time financial data processing. Architect and develop cloud-native applications using Azure Cosmos DB (SQL API, Mongo API)
This role involves architecting cloud-native solutions using Azure Cosmos DB (SQL API and Mongo API), implementing effective partitioning strategies, indexing, and consistency models to support real-time financial data processing. Architect and develop cloud-native applications using Azure Cosmos DB (SQL API, Mongo API)
Strong grasp of API integrations, middleware and multi system architectures.
Strong grasp of API integrations, middleware and multi system architectures.
Strong knowledge of API integration.
Strong knowledge of API integration.
NEW
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Troubleshoot and resolve complex technical cases involving Airtable's API, SAML/SSO, SCIM provisioning, advanced automations, scripting, and third-party integrations.
Troubleshoot and resolve complex technical cases involving Airtable's API, SAML/SSO, SCIM provisioning, advanced automations, scripting, and third-party integrations.
Implement automation workflows, orchestration, and API-based solutions. o Strong knowledge of ServiceNow scripting (JavaScript, Glide API), Flow Designer, and IntegrationHub.
Implement automation workflows, orchestration, and API-based solutions. o Strong knowledge of ServiceNow scripting (JavaScript, Glide API), Flow Designer, and IntegrationHub.
Basic understanding of ServiceNow scripting (JavaScript, Glide API) to effectively debug and analyse issues.
Basic understanding of ServiceNow scripting (JavaScript, Glide API) to effectively debug and analyse issues.
FEATURED
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Build and maintain API-based integrations with systems such as ServiceNow, NetBox, and GitHub.
Build and maintain API-based integrations with systems such as ServiceNow, NetBox, and GitHub.
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Strong focus on optimizing inference performance and cost (e.g., model compression, quantization, API optimization).
Strong focus on optimizing inference performance and cost (e.g., model compression, quantization, API optimization).
FEATURED
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Role - .Net Engineer - Location - Hybrid, Home and twice a month onsite (multiple locations) Contract - Initial 3 months, high probability of extension to 2027 - Rate - £475 to £525 per day - Start - ASAP - This role has been deemed Inside IR35. You must hold active SC Clearance to be eligible for this role. The Opportunity - We are working in partnership with a leading defence systems integrator to recruit a .Net Engineer for a major long-term programme of work. This is an exciting opportunity to join a highly capable engineering team delivering innovative software solutions across complex and mission-critical environments. If you’re looking to broaden your technical exposure; particularly across modern data platforms and integration technologies—this role offers the chance to grow within a dynamic, fast-moving setting where no two challenges are the same. The Role
Role - .Net Engineer - Location - Hybrid, Home and twice a month onsite (multiple locations) Contract - Initial 3 months, high probability of extension to 2027 - Rate - £475 to £525 per day - Start - ASAP - This role has been deemed Inside IR35. You must hold active SC Clearance to be eligible for this role. The Opportunity - We are working in partnership with a leading defence systems integrator to recruit a .Net Engineer for a major long-term programme of work. This is an exciting opportunity to join a highly capable engineering team delivering innovative software solutions across complex and mission-critical environments. If you’re looking to broaden your technical exposure; particularly across modern data platforms and integration technologies—this role offers the chance to grow within a dynamic, fast-moving setting where no two challenges are the same. The Role
NEW
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Solid understanding of system design principles and API development.
Solid understanding of system design principles and API development.
PREMIUM
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API Development & Integration - Proficient in designing and building RESTful APIs using FastAPI, Flask, or Django REST Framework for exposing AI models and automation services. Experience with API authentication (OAuth, JWT), rate limiting, error handling, API documentation (Swagger/OpenAPI), webhooks, and integrating disparate systems to create seamless automated workflows. Ability to assess when RPA vs. API integration vs. AI solutions are most appropriate, and experience building hybrid automation solutions combining multiple technologies.
API Development & Integration - Proficient in designing and building RESTful APIs using FastAPI, Flask, or Django REST Framework for exposing AI models and automation services. Experience with API authentication (OAuth, JWT), rate limiting, error handling, API documentation (Swagger/OpenAPI), webhooks, and integrating disparate systems to create seamless automated workflows. Ability to assess when RPA vs. API integration vs. AI solutions are most appropriate, and experience building hybrid automation solutions combining multiple technologies.
NEW
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Solution Architect - (HCM) SC Cleared
Solution Architect - (HCM) SC Cleared
Henderson Scott
London
£700 - £800 per day + Umbrella rate (inside IR35)
Solution Architect - Active SC Cleared - Location: Hybrid (20% in London or Glasgow) | Engagement: Contract - Inside IR35 | Duration: Initial 6 Months | Clearance: SC Clearance Essential - Our client requires a high-calibre Solution Architect with extensive HCM (Workday / Oracle HCM / Successfactors) experince to establish and deliver the integrations sub-workstream from the ground up. This role is critical for technical readiness, involving the design of integration patterns that will connect the new HCM with crucial internal and external systems across HR, Finance, and Payroll. The Role: End-to-End Integration Strategy & Delivery - You will report directly to the Senior Technical Delivery Manager, acting as the primary authority for all Workday integration design and delivery. * Integration Strategy: Define, develop, and own the Workday integration strategy and road
Solution Architect - Active SC Cleared - Location: Hybrid (20% in London or Glasgow) | Engagement: Contract - Inside IR35 | Duration: Initial 6 Months | Clearance: SC Clearance Essential - Our client requires a high-calibre Solution Architect with extensive HCM (Workday / Oracle HCM / Successfactors) experince to establish and deliver the integrations sub-workstream from the ground up. This role is critical for technical readiness, involving the design of integration patterns that will connect the new HCM with crucial internal and external systems across HR, Finance, and Payroll. The Role: End-to-End Integration Strategy & Delivery - You will report directly to the Senior Technical Delivery Manager, acting as the primary authority for all Workday integration design and delivery. * Integration Strategy: Define, develop, and own the Workday integration strategy and road
FEATURED
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Oracle Fusion Cloud Sr. Technical Integration Manager
Oracle Fusion Cloud Sr. Technical Integration Manager
Indotronix Avani UK Ltd
St James, South West London (SW1), SW1A
Unspecified
Fusion Cloud Products: Deep knowledge of Oracle Integration Cloud and other relevant integration requirements e.g., XSLT transformations, API security, interface error handling with practical design, configuration, and testing experience.
Fusion Cloud Products: Deep knowledge of Oracle Integration Cloud and other relevant integration requirements e.g., XSLT transformations, API security, interface error handling with practical design, configuration, and testing experience.