mode. Contribute to automated testing (C#) and infrastructure improvements (Docker, Ansible, Python, Linux). Required Skills: Proven experience with Java, Spring, Maven, Git, JUnit, and Web APIs (REST/JSON, XML/SOAP). Active SC clearance is essential. Strong background in complex or high-pressure software development environments. Ability to collaborate effectively within a diverse technical team and deliver More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
Meritus Talent
mode. Contribute to automated testing (C#) and infrastructure improvements (Docker, Ansible, Python, Linux). Required Skills: Proven experience with Java, Spring, Maven, Git, JUnit, and Web APIs (REST/JSON, XML/SOAP). Active SC clearance is essential. Strong background in complex or high-pressure software development environments. Ability to collaborate effectively within a diverse technical team and deliver More ❯
pipelines. Required Skills and Experience: Strong commercial experience in Scala development. Hands-on experience with the Play Framework. Solid understanding of functional programming principles. Experience working with REST APIs, JSON, and HTTP protocols. Familiarity with version control systems (Git). Agile/Scrum delivery environment experience. Understanding of TDD/BDD and automated testing frameworks. Experience working on public sector More ❯
City of London, London, United Kingdom Hybrid / WFH Options
Randstad Digital
a solid foundation in: Axway's core products: Policy Studio, API Gateway, and API Manager. Key communication protocols: SFTP, HTTPS, SSL/TLS, and oAuth. Data and messaging formats: JSON, XML, SOAP, and REST. Linux scripting and environments. Using DevOps toolsets to automate testing and deployments. 6 months contract Inside IR35 - Remote Working - ?? £500 to £650 a day If you More ❯
Preston, Lancashire, United Kingdom Hybrid / WFH Options
CBSbutler Holdings Limited trading as CBSbutler
for Deployment of WebMethods Patches, monitor capacity, providing service improvements Liaise with customers to define project requirements, document and design solutions Knowledge of: JMS Queues SAP Adaptors SFTP HTTPS JSON XML SOAP More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
Corriculo Ltd
Graph API Background in Microsoft Teams development, and a familiarity with the Microsoft 365 environment Knowledge of Azure AD, authentication protocols (OAuth 2.0), and RESTful APIs Experience working with JSON, webhooks, or event-driven architectures is a plus What Next? If you’re an experienced C# Developer with Microsoft Teams integration experience and you’re available immediately, apply today to More ❯
WebSockets) Contribute to CI/CD (GitHub Actions) and containerisation best practices. Operate securely inside private-network Azure environments (Managed Identity, RBAC, Private Endpoints). Enforce config-driven processing (JSON configs) with robust error handling, telemetry, and full traceability Key skills and experience : Strong Node.js/TypeScript in production microservices (HTTP + background workers). Understanding of Azure Container Apps More ❯
for Deployment of WebMethods Patches, monitor capacity, providing service improvements Liaise with customers to define project requirements, document and design solutions Knowledge of: JMS Queues SAP Adaptors SFTP HTTPS JSON XML If you'd like to discuss this WebMethods Developer in more detail, please send your updated CV to (url removed) and I will get in touch. More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
Oscar Technology
strong understanding of front-end best practices, and the ability to hit the ground running in a dynamic environment. Tech Stack: JavaScript (ES6+) Vue.js HTML5/CSS3 REST APIs & JSON What You'll Do: Enhance and streamline the user interface for an internal order processing system Optimise workflows and improve system usability for internal teams Collaborate with backend developers and More ❯
solutions using XML, XSLT, and DataStage Designer. Work extensively with IBM Maximo to read/write and transform complex XML structures. Analyse and map data across formats including XML, JSON, CSV, EDI, and relational databases. Develop and maintain transformation logic, integration rules, and mapping specifications. Validate outputs and troubleshoot discrepancies in transformed datasets. Collaborate with architects, analysts, and stakeholders to More ❯
the migration 6 CRMs to 1 new CRM and migrating 20 million rows of data. The key experience required for this Data Migration Engineer role is: CRM migration APIs Json XML Low code Airtable (desirable) If you do have the relevant skills for this Data Migration Engineer contract, please do apply. More ❯
South East London, London, United Kingdom Hybrid / WFH Options
Data Careers
Software Engineer (SC & NPPV3) 6 Month Contract Fully Remote Rate: £500 - £600 per day (Inside IR35) Skills: C#.Net, XML/JSON API's, SC & NPPV3 Clearance We are looking for an experienced Software Engineer to join a high-profile public sector project. You will play a key role in designing, building, and maintaining software solutions in a secure environment, working … day one. This is a fully remote UK based role. Key Responsibilities Design, develop, and maintain applications using C# and .NET Framework/.NET 6+ Work with XML/JSON APIs for integration and data exchange Develop and execute automated tests with MSTest Collaborate with stakeholders to gather and analyse requirements Ensure software is secure, scalable, and maintainable Essential Skills … Strong commercial experience in C# In-depth knowledge of .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 ❯
remote & the client requires candidates to hold active SC & NPPV3 Clearances. Main Responsibilities: Develop and maintain applications using C#, .NET Framework, and .NET 6+ Build and consume XML/JSON APIs within secure environments Collaborate with stakeholders to support requirements gathering and analysis Write and execute MSTest unit tests to ensure high software quality Required Skills: Strong experience with C# … ASP.NET, .NET Framework and .NET 6+ Proven experience working with XML/JSON APIs Knowledge of MSTest or similar testing frameworks Ability to gather and analyse technical requirements effectively Desired Skills: Experience with Docker and Oracle SQL Familiarity with Postman and Swagger for API testing and documentation Basic understanding of Powershell scripting Got your attention? If you believe that you More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
Randstad Technologies
PKI & Cloud Security Specialist 6 Months Contract - Remote working £600 to £700 a day inside IR35 A top tier pioneering consultancy firm is looking for an experienced PKI/Cloud Security consultant to act as an SME to design and More ❯