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8 Permanent API jobs in Chelmsford + 20 miles
733 exact matches jobs are outside your preferred location
Our investments in cutting-edge technology such as Custom API, trading systems, and data science enable easy access to financial services that were previously inaccessible or difficult to understand.
Our investments in cutting-edge technology such as Custom API, trading systems, and data science enable easy access to financial services that were previously inaccessible or difficult to understand.
Restful API Services experience
Restful API Services experience
Proficient in automated and manual testing of web, desktop and API-based applications. * API testing tools (Postman)
Proficient in automated and manual testing of web, desktop and API-based applications. * API testing tools (Postman)
Proven experience in full-stack .NET development (C#/ASP.NET MVC/Web API). * Strong skills in API integration and backend connectivity.
Proven experience in full-stack .NET development (C#/ASP.NET MVC/Web API). * Strong skills in API integration and backend connectivity.
Experience with Microsoft Graph API, REST APIs, and cloud integration patterns (Azure preferred).
Experience with Microsoft Graph API, REST APIs, and cloud integration patterns (Azure preferred).
REST API integration expertise using Axios, authentication handling, error management, and data transformation
REST API integration expertise using Axios, authentication handling, error management, and data transformation
Familiar with model deployment, API development, or real-world ML integration
Familiar with model deployment, API development, or real-world ML integration
Develop API-based interfaces for our products, ensuring high quality standards and compliance with industry regulations.
Develop API-based interfaces for our products, ensuring high quality standards and compliance with industry regulations.
Good knowledge of client-server architecture and experience in API testing (Postman or similar);
Good knowledge of client-server architecture and experience in API testing (Postman or similar);
Familiarity with major paid search platforms, such as Google Ads, Bing Ads, Apple Search Ads and experience working with the Google / Bing Ads API.
Familiarity with major paid search platforms, such as Google Ads, Bing Ads, Apple Search Ads and experience working with the Google / Bing Ads API.
Restful API Services experience
Restful API Services experience
Microsoft .NET / C#, MVC, SQL Server, Rest API and Visual Studio required.
Microsoft .NET / C#, MVC, SQL Server, Rest API and Visual Studio required.
Strong object-oriented design, API design, data modeling,data storage/retrieval and coding skills
Strong object-oriented design, API design, data modeling,data storage/retrieval and coding skills
Experience applying Infrastructure as Code or Configuration as Code principles and an API-driven approach to script and automate processes in identity and/or productivity platforms
Experience applying Infrastructure as Code or Configuration as Code principles and an API-driven approach to script and automate processes in identity and/or productivity platforms
REST Api design
REST Api design
New GraphQL API backends.
New GraphQL API backends.