a financial services, payments, or fintech environment. Strong knowledge of API-based systems (REST, JSON, XML) and how to document and validate API requirements. Familiarity with tools like Postman, Swagger/OpenAPI, or similar for API analysis and testing. Experience working with Agile methodologies (SAFe preferred) and tools like Jira or Rally. Knowledge of systems development life cycles (waterfall More ❯
a financial services, payments, or fintech environment. Strong knowledge of API-based systems (REST, JSON, XML) and how to document and validate API requirements. Familiarity with tools like Postman, Swagger/OpenAPI, or similar for API analysis and testing. Experience working with Agile methodologies (SAFe preferred) and tools like Jira or Rally. Knowledge of systems development life cycles (waterfall More ❯
South East London, London, United Kingdom Hybrid / WFH Options
Data Careers
.NET Framework and .NET 6+ Proven experience working with XML/JSON APIs Proficiency with MSTest Background in requirements gathering and analysis Highly Beneficial Skills Docker Oracle SQL Postman Swagger Desirable Skills PowerShell scripting More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
FDM Group
FDM is a global business and technology consultancy seeking a Senior Front End Developer to work for our client within the public sector. This is initially a 3-month contract with the potential to extend and will be a remote More ❯
Liverpool, Merseyside, England, United Kingdom Hybrid / WFH Options
Hays Specialist Recruitment Limited
inside IR35 (via umbrella company). Key Responsibilities: Develop and maintain scalable Java backend services using Spring Boot and Spring Framework Build and test RESTful APIs using Postman and Swagger Collaborate with DevOps teams to support CI/CD pipelines Manage cookies and session handling effectively Write and maintain unit tests using JUnit Work with POJOs and mock data … components using Thymeleaf and JSON What you'll need to succeed Essential Skills: Java (Core and Advanced) Spring Boot & Spring Framework jQuery Thymeleaf RESTful API development and testing (Postman, Swagger) CI/CD pipelines and DevOps collaboration Cookies/session management Unit testing with JUnit Handling POJOs and mock data Desirable: Exposure to modern frontend frameworks (e.g., React, Angular More ❯
Alexander Mann Solutions - Public Sector Resourcing
On behalf of National Savings & Investments, we are looking for an Integration Lead (Inside IR35) for a 12 Month Hybrid contract based 2 days per week in London. NS&I is one of the largest savings organisations in the UK More ❯
