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Locations
Locations
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47 Permanent API jobs in Welwyn Garden City + 20 miles
509 exact matches jobs are outside your preferred location
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Are you an experienced .Net (C#) Developer, with some solid experience in API development, looking to take on your next Software Engineering role in a growing SaaS product company? Keen to grow your technical skills around .Net 8 / C# / API & MySQL development & look into new Generative AI / LLM dev' tools, too? Job title: .Net (C#) API Developer - But basically, if you have solid experience in .Net (C#) & solid experience in ASP.Net core WebAPI (RESTful API), then we'd like to hear from you! - ASP.NET Core MVC and Web API. - Understanding of API versioning, documentation (e.g., Swagger), and security best practices.
Are you an experienced .Net (C#) Developer, with some solid experience in API development, looking to take on your next Software Engineering role in a growing SaaS product company? Keen to grow your technical skills around .Net 8 / C# / API & MySQL development & look into new Generative AI / LLM dev' tools, too? Job title: .Net (C#) API Developer - But basically, if you have solid experience in .Net (C#) & solid experience in ASP.Net core WebAPI (RESTful API), then we'd like to hear from you! - ASP.NET Core MVC and Web API. - Understanding of API versioning, documentation (e.g., Swagger), and security best practices.
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Senior .NET Integration Developer
Senior .NET Integration Developer
Oscar Associates (UK) Limited
SL6, Maidenhead
£50000 - £65000 per annum
Assist customers and partners in integration setup and API/gateway usage.
Assist customers and partners in integration setup and API/gateway usage.
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Strong knowledge of data modelling, API management, and cloud integration.
Strong knowledge of data modelling, API management, and cloud integration.
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Deep understanding of RESTful API design and integration
Deep understanding of RESTful API design and integration
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Deep understanding of RESTful API design and integration
Deep understanding of RESTful API design and integration
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Familiarity with SharePoint, Dynamics 365, Azure, API integrations, and scripting languages like PowerShell or JavaScript.
Familiarity with SharePoint, Dynamics 365, Azure, API integrations, and scripting languages like PowerShell or JavaScript.
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Deep understanding of RESTful API design and integration
Deep understanding of RESTful API design and integration
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Deep understanding of RESTful API design and integration
Deep understanding of RESTful API design and integration
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Extensive experience withAWScloud ecosystem services like EC2, S3, Lambda, SNS/SQS, API Gateway, RDS/DynamoDB, CloudFormation, etc.
Extensive experience withAWScloud ecosystem services like EC2, S3, Lambda, SNS/SQS, API Gateway, RDS/DynamoDB, CloudFormation, etc.
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Strong understanding of REST API design and backend microservices architecture
Strong understanding of REST API design and backend microservices architecture
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Hands-on experience with Azure Integration Services: Logic Apps, API Management, Service Bus, Event Grid, Function Apps
Hands-on experience with Azure Integration Services: Logic Apps, API Management, Service Bus, Event Grid, Function Apps
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Investran Application Specialist
Investran Application Specialist
Cobalt Recruitment.
City of London, London
£75000.00 - £95000 per annum
Proven track record of configuring and integrating financial platforms, ideally with SQL and API experience.
Proven track record of configuring and integrating financial platforms, ideally with SQL and API experience.
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Oversee system enhancements and API integrations
Oversee system enhancements and API integrations
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Oversee system enhancements and API integrations
Oversee system enhancements and API integrations
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Skills: C#.Net, XML / JSON API's, SC & NPPV3 Clearance
Skills: C#.Net, XML / JSON API's, SC & NPPV3 Clearance
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At least 2+ years experience with building secure Web Applications utilising an API backend
At least 2+ years experience with building secure Web Applications utilising an API backend
Oversee system enhancements and API integrations
Oversee system enhancements and API integrations
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Ensuring feature parity and API alignment between different platforms
Ensuring feature parity and API alignment between different platforms
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Experience working with REST and GraphQL API's
Experience working with REST and GraphQL API's
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Lead QA Engineer, Commodities Trading, £120k, London
Lead QA Engineer, Commodities Trading, £120k, London
Harvey Nash
London
Up to £120000.00 per annum + Extensive Benefits
Extensive experience in Automation Quality Assurance (UI, DB and API) in a Financial Services environment (Ideally Trading)
Extensive experience in Automation Quality Assurance (UI, DB and API) in a Financial Services environment (Ideally Trading)
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Lead QA Engineer, Commodities Trading, £120k, London
Lead QA Engineer, Commodities Trading, £120k, London
Harvey Nash
London
Up to £120000.00 per annum + Extensive Benefits
Extensive experience in Automation Quality Assurance (UI, DB and API) in a Financial Services environment (Ideally Trading)
Extensive experience in Automation Quality Assurance (UI, DB and API) in a Financial Services environment (Ideally Trading)
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Strong understanding of API services (RESTful APIs, integration patterns)
Strong understanding of API services (RESTful APIs, integration patterns)
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Applications Support Analyst
Applications Support Analyst
Kudos Partners
Datchet Common, SL3
£70,000 per annum plus 12% bonus - generous benefits package
API support and monitoring tools (e.g., SolarWinds, Azure App Insights)
API support and monitoring tools (e.g., SolarWinds, Azure App Insights)
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Senior Software Engineer
Senior Software Engineer
Halian Technology Limited
W1, Central London
From £90,000 to £95,000 per annum Plus bonus and benefits
Cloud experience withAWSservices (Lambda, API Gateway, S3, etc.)
Cloud experience withAWSservices (Lambda, API Gateway, S3, etc.)
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Python Backend Developer - AWS
Python Backend Developer - AWS
Infoplus Technologies UK Ltd
London
From £300 to £350 per day Max GBP 350/day Inside IR35
GraphQL, API authentication, performance management, and internationalization
GraphQL, API authentication, performance management, and internationalization
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