Contract OpenAPI Jobs in London

5 of 5 Contract OpenAPI Jobs in London

.Net developer

London, South East, England, United Kingdom
eTeam Inc
containerized deployments Required Technical Skills • 5+ years of experience with .NET development (C#, ASP.NET Core) • Strong experience with Entity Framework Core and PostgreSQL • Proficiency in RESTful API design and OpenAPI/Swagger documentation • Experience with authentication systems (OAuth2, JWT, Azure AD) • Knowledge of containerization (Docker) and Kubernetes/OpenShift • Experience with background job processing and scheduled tasks • Understanding of More ❯
Employment Type: Contractor
Rate: £280 - £297 per day
Posted:

Lead API Solution Architect

London, South East, England, United Kingdom
Venn Group
banking or regulated financial environments. Working knowledge of payments, KYC, lending, trading, or regulatory reporting. Familiarity with Open Banking standards and financial API ecosystems. Strong understanding of REST, JSON, OpenAPI, and event-driven integration. Experience with API platforms such as Azure API Management or Apigee . Knowledge of secure messaging and integration tools (e.g. Kafka, IBM MQ). Experience More ❯
Employment Type: Contractor
Rate: £650 - £1,000 per day
Posted:

Lead API Solution Architect - Financial Services / Banking

London, United Kingdom
Adecco
and cloud systems Maintain compliance with financial regulations Monitor and optimise API performance and developer experience Experience Required: Proven leadership in large-scale API programmes Expertise in REST, OAuth2, OpenAPI, and API security Familiarity with banking processes and Open Banking standards Cloud (Azure/GCP), CI/CD, and integration tools (Kafka, IBM MQ) Strong stakeholder management and strategic More ❯
Employment Type: Contract
Posted:

Lead API Solution Architect - Financial Services / Banking

London, South East, England, United Kingdom
Adecco
and cloud systems Maintain compliance with financial regulations Monitor and optimise API performance and developer experience Experience Required: Proven leadership in large-scale API programmes Expertise in REST, OAuth2, OpenAPI, and API security Familiarity with banking processes and Open Banking standards Cloud (Azure/GCP), CI/CD, and integration tools (Kafka, IBM MQ) Strong stakeholder management and strategic More ❯
Employment Type: Contractor
Rate: Salary negotiable
Posted:

Microsoft Teams Developer

London, South East, England, United Kingdom
Jonothan Bosworth
Looking For: Strong background in Microsoft Azure , including API Management , Azure AD , and App Services . Experience with Microsoft Teams app development or Microsoft 365 integrations . Familiarity with OpenAPI/Swagger , Postman , and developer documentation . Exposure to Infrastructure as Code (Bicep, Terraform, ARM) . Version control and CI/CD using Azure DevOps or GitHub . Bonus More ❯
Employment Type: Contractor
Rate: £200 - £500 per day
Posted:
OpenAPI
London
10th Percentile
£378
25th Percentile
£438
Median
£475
75th Percentile
£519
90th Percentile
£631