Date posted
Commute time
Locations
Type of Company
Job types
Salaries
Locations
361 exact matches jobs are outside your preferred location
)
API Integration
API Integration
NEWFEATURED
)
.NET Framework Version 4.5 or above including strong WCF\ Web API experience
.NET Framework Version 4.5 or above including strong WCF\ Web API experience
NEW
)
Awareness of Dataverse API
Awareness of Dataverse API
NEW
)
Familiarity with microservices architecture, API design, and integration patterns.
Familiarity with microservices architecture, API design, and integration patterns.
FEATURED
Strong hands-on experience with API/web service testing (JSON, SOAP).
Strong hands-on experience with API/web service testing (JSON, SOAP).
)
Integration Engineer Contact (Outside IR35) - Oxfordshire
Integration Engineer Contact (Outside IR35) - Oxfordshire
Halian Technology Limited
OX1, Oxford
From £400 to £550 per day
Security awareness (especially around data flows and API access) RESTful API design and integration API authentication methods
Security awareness (especially around data flows and API access) RESTful API design and integration API authentication methods
NEW
)
Proven experience in API development and maintenance.
Proven experience in API development and maintenance.
)
Proficiency in Microsoft Graph API, Azure OpenAI, and Semantic Kernel
Proficiency in Microsoft Graph API, Azure OpenAI, and Semantic Kernel
NEW
)
Strong grasp of databases (SQL/NoSQL) and API integrations
Strong grasp of databases (SQL/NoSQL) and API integrations
NEW
)
Previous experience delivering secure API integrations for banking and real-time content platforms.
Previous experience delivering secure API integrations for banking and real-time content platforms.
NEW
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.)
NEW
)
RESTful API development experience.
RESTful API development experience.
NEW
)
Customer Portal API Integration
Customer Portal API Integration
)
Develop, deploy, and monitor cloud solutions using AWS (Lambda, API Gateway, CloudWatch, ECS, ECR, DynamoDB, S3) * Strong grasp of distributed systems, API security (OAuth, API keys, JWT), and Apigee/APIM platforms
Develop, deploy, and monitor cloud solutions using AWS (Lambda, API Gateway, CloudWatch, ECS, ECR, DynamoDB, S3) * Strong grasp of distributed systems, API security (OAuth, API keys, JWT), and Apigee/APIM platforms
NEW
)
Good understanding of API testing * Basic understanding of API automation using python
Good understanding of API testing * Basic understanding of API automation using python
NEW
)
Connecting to Bakcend API
Connecting to Bakcend API
NEW
Deep understanding of RESTful API design and integration
Deep understanding of RESTful API design and integration
NEW
)
Microsoft Power Platform / Agentic AI Engineer
Microsoft Power Platform / Agentic AI Engineer
cer Financial
EC2M, City of London
£705 per day £705 per day (via Umbrella)
Microsoft 365 & Graph API Integration * Proficiency in Microsoft Graph API, Azure OpenAI, and Semantic Kernel
Microsoft 365 & Graph API Integration * Proficiency in Microsoft Graph API, Azure OpenAI, and Semantic Kernel
FEATURED
Build, deploy, and monitor cloud solutions using AWS services (Lambda, API Gateway, CloudWatch, ECS, ECR, DynamoDB, S3). * Design and manage applications using Apigee Edge and X, overseeing the full API lifecycle, driving strategy, and enhancing integrations with analytics. * Enforce security best practices, manage API access (OAuth, API keys, JWT), remediate vulnerabilities, and align with compliance standards in collaboration with security teams. * Strong knowledge of Apigee and API management, including design patterns, performance tuning, and analytics.
Build, deploy, and monitor cloud solutions using AWS services (Lambda, API Gateway, CloudWatch, ECS, ECR, DynamoDB, S3). * Design and manage applications using Apigee Edge and X, overseeing the full API lifecycle, driving strategy, and enhancing integrations with analytics. * Enforce security best practices, manage API access (OAuth, API keys, JWT), remediate vulnerabilities, and align with compliance standards in collaboration with security teams. * Strong knowledge of Apigee and API management, including design patterns, performance tuning, and analytics.
NEW
.NET Developer
.NET Developer
Halian Technology Limited
W1, Central London
From £70,000 to £80,000 per annum Plus bonus and benefits
Proven hands-on experience withAWS servicessuch as Lambda, ECS/Fargate, API Gateway, DynamoDB, S3, CloudFormation/Terraform.
Proven hands-on experience withAWS servicessuch as Lambda, ECS/Fargate, API Gateway, DynamoDB, S3, CloudFormation/Terraform.
NEW
)
Familiarity with workflow automation solutions (UiPath, Power Automate, Zapier, n8n) and API development
Familiarity with workflow automation solutions (UiPath, Power Automate, Zapier, n8n) and API development
NEW
Senior Solution Architect
Senior Solution Architect
UK Health Security Agency
Canary Wharf, E14 4PU
From £54,416 to £68,344 per annum
The United Kingdom Health Security Agency (UKHSA) is a system leader for health security; taking action internationally to strengthen global health security, providing trusted advice to government and the public and reducing inequalities in the way different communities experience and are impacted by infectious disease, environmental hazards, and other threats to health. UKHSAs remit, as an agency with a global-to-local reach, is to protect the health of the nation from infectious diseases and other external threats to health. * Prevent: anticipate threats to health and help build the nations readiness, defences and health security * Detect: use cutting edge environmental and biological surveillance to proactively detect and monitor infectious diseases and threats to health * Analyse: use world-class science and data analytics to assess and continually monitor threats
The United Kingdom Health Security Agency (UKHSA) is a system leader for health security; taking action internationally to strengthen global health security, providing trusted advice to government and the public and reducing inequalities in the way different communities experience and are impacted by infectious disease, environmental hazards, and other threats to health. UKHSAs remit, as an agency with a global-to-local reach, is to protect the health of the nation from infectious diseases and other external threats to health. * Prevent: anticipate threats to health and help build the nations readiness, defences and health security * Detect: use cutting edge environmental and biological surveillance to proactively detect and monitor infectious diseases and threats to health * Analyse: use world-class science and data analytics to assess and continually monitor threats
NEW
)
Lead .Net Software Developer
Lead .Net Software Developer
Hireful
Milton Keynes, Buckinghamshire
£65k - £75k base salary plus Bonus and awesome benefits
Are you a hands-on Lead or Senior .Net Developer ready to shape architecture and guide talented developers? Want a hybrid role with 3 days WFH? This is your chance to stay close to the code while making key technical decisions that drive real business impact. You'll join a collaborative, forward-thinking team building cutting-edge products — with the support, tools, and flexibility to thrive. Role: Lead Software Developer, Senior .Net Developer, Software Engineering Manager, Senior Full Stack Developer, Lead .Net Developer, Lead Software Engineer, Senior C# Developer - Salary: £65k - £75k base + Bonus - Benefits: 5% pension, 25 days holiday, 2 wellbeing days, Christmas shutdown, private healthcare, life assurance, cinema tickets & more - Location: Milton Keynes – Hybrid (2 days a week in office) If you’ve got strong .Net (C#) experience and skills in GitHub, APIs, Pos
Are you a hands-on Lead or Senior .Net Developer ready to shape architecture and guide talented developers? Want a hybrid role with 3 days WFH? This is your chance to stay close to the code while making key technical decisions that drive real business impact. You'll join a collaborative, forward-thinking team building cutting-edge products — with the support, tools, and flexibility to thrive. Role: Lead Software Developer, Senior .Net Developer, Software Engineering Manager, Senior Full Stack Developer, Lead .Net Developer, Lead Software Engineer, Senior C# Developer - Salary: £65k - £75k base + Bonus - Benefits: 5% pension, 25 days holiday, 2 wellbeing days, Christmas shutdown, private healthcare, life assurance, cinema tickets & more - Location: Milton Keynes – Hybrid (2 days a week in office) If you’ve got strong .Net (C#) experience and skills in GitHub, APIs, Pos
NEWFEATURED
)
PHP Web Developer
PHP Web Developer
Rise Technical
Northampton, Northamptonshire
£26000 - £34000 per annum + Great Benefits
Experience with Git version control and API integration
Experience with Git version control and API integration
NEW
Understanding of API authentication, rate limits, and error handling.
Understanding of API authentication, rate limits, and error handling.
NEW