1 to 25 of 29 Contract JSON Jobs in London

retaining and Drift monitoring in Azure with knowledge of Microsoft Azure Strong understanding of object-oriented programming and familiarity with front-end technologies like HTML, CSS, React and JavaScript, JSON Strong command of SQL for database management, query optimisation and No SQL databases Experience in Python Programming and data visualisation using PowerBI or similar tools Exposure to applying ML algorithms More ❯

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 ❯

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 ❯

support new opportunities. What are we looking for? 3+ years software development experience, including: JAVA 5/J2EE, ReactJS, Web Services, XML, SQL, Gradle, Spring, Hibernate, Castor, REST/JSON and Enterprise Messaging System. Using configuration management tools like Git, Tortoise SVN, Source Tree, Perforce, Plastic and ticket management tools like Azure DevOps, JIRA, HPQC. Knowledge of the AGILE methodology More ❯

knowledge of T-SQL (queries, stored procedures, functions, indexing, performance tuning). Experience working with relational databases (SQL Server, Oracle, etc.) and flat file/CSV/XML/JSON data sources. Strong understanding of ETL design patterns, data warehousing concepts. Experience with SQL Server Agent or other scheduling tools. Strong troubleshooting and problem-solving skills. Preferred Skills Familiarity with More ❯

with core business systems and delivering high-quality, scalable solutions. Key Responisibilites: Develop, maintain, and enhance PHP applications across web and enterprise environments Build and consume APIs (REST/JSON, SOAP) for integration's with third-party and internal systems Collaborate with cross-functional teams including product owners, business analysts, and testers Optimise application performance, scalability, and security Deliver clean More ❯

and DB2 Rest with extensive knowledge of CICS Web Services. Development experience using FileAid, Xpeditor, IBM Explorer for z/OS, and Visual Studio. Proficient with SOAP, WSDL, and JSON; comprehensive understanding of SOA and RESTful APIs. Experience with code repositories, bug tracking tools, and wikis (e.g., GitLab, Endevor, JIRA, Confluence). Knowledge of security integration patterns such as Basic More ❯

core AWS services (EC2, S3, Lambda, IAM, etc.) Kafka/Messaging Systems: Expertise in building event-driven architectures SQL: Strong experience with relational databases and query optimization REST/JSON APIs: Designing, developing, and consuming scalable APIs Docker: Proficiency in containerizing applications for local and cloud environments Communication: Excellent communication skills to convey complex ideas effectivel Nice to have: JavaScript More ❯

core AWS services (EC2, S3, Lambda, IAM, etc.) Kafka/Messaging Systems: Expertise in building event-driven architectures SQL: Strong experience with relational databases and query optimization REST/JSON APIs: Designing, developing, and consuming scalable APIs Docker: Proficiency in containerizing applications for local and cloud environments Communication: Excellent communication skills to convey complex ideas effectivel Nice to have: JavaScript More ❯

tools (Docker, OpenShift, Kubernetes); web UI development (React). Must understand Infrastructure as a Code (Terraform) Integration - Expert experience with integration techniques, including real-time messaging (AMQ), API design (JSON, Swagger), and batch techniques. Infrastructure and Operational - Familiarity with DevOps practices, including CI/CD, automated deployments via Ansible, GIT Repositories. cloud infrastructure offerings, Grid Computing elasticity, and cost optimization. More ❯

tools (Docker, OpenShift, Kubernetes); web UI development (React). Must understand Infrastructure as a Code (Terraform) Integration - Expert experience with integration techniques, including real-time messaging (AMQ), API design (JSON, Swagger), and batch techniques. Infrastructure and Operational - Familiarity with DevOps practices, including CI/CD, automated deployments via Ansible, GIT Repositories. cloud infrastructure offerings, Grid Computing elasticity, and cost optimization. More ❯

for Deployment of Axway Patches, monitor capacity, providing service improvements Liaise with customers to define project requirements, document and design solutions Knowledge of: SFTP HTTPS SSL/TLS oAuth JSON XML SOAP REST Mime Linux Scripting More ❯

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 ❯

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 ❯

solutions in medium to large enterprises. Experience leading delivery teams in a global or regional organization across multiple jurisdictions. Strong experience delivering complex data platform projects using C#, SQL, JSON, XML, APIs, and message bus technology. Solid knowledge of database systems, data modeling, and integration technologies. Exceptional problem-solving and communication skills, with experience in various data architectures. A collaborative More ❯

or IT company Experience working in Networks or IT network transformations Proven track record of delivering high quality code and leading development squads Key skills Netconf, API's, XML, JSON, Jinja 2, Python, JavaScript Cisco NSO, Ansible, Net Miko, Docker Workflow automation Itential IAP, Appian, Resolve Knowledge of telecom networks, technologies, and standards e.g TMF/Tosca/MEF YANG More ❯

or IT company Experience working in Networks or IT network transformations Proven track record of delivering high quality code and leading development squads Key skills Netconf, API's, XML, JSON, Jinja 2, Python, JavaScript Cisco NSO, Ansible, Net Miko, Docker Workflow automation Itential IAP, Appian, Resolve Knowledge of telecom networks, technologies, and standards e.g TMF/Tosca/MEF YANG More ❯

What are we looking for? Senior Developer 5+ years of software development experience, including JAVA 5/J2EE, ReactJS, Web Services, XML, SQL, Gradle, Spring, Hibernate, Castor, REST/JSON, and Enterprise Messaging System. Experience with configuration management tools like Git, Tortoise SVN, Source Tree, Perforce, Plastic, and ticket management tools like Azure DevOps, JIRA, HPQC. Knowledge of the AGILE … tia, etc.) is highly desirable. Lead Developer 8+ years of software development experience, including JAVA 5/J2EE, ReactJS, Web Services, XML, SQL, Gradle, Spring, Hibernate, Castor, REST/JSON, and Enterprise Messaging System. Extensive experience with configuration management tools like Git, Tortoise SVN, Source Tree, Perforce, Plastic, and ticket management tools like Azure DevOps, JIRA, HPQC. In-depth knowledge More ❯

frameworks Expertise in Microsoft Graph API, Microsoft 365 compliance and security, and identity management. Experience with Copilot Studio and building custom Copilot agents or plugins. Familiarity with REST APIs, JSON, OAuth, and integration patterns with enterprise systems (e.g., CRM, ERP, data lakes). Understanding of prompt engineering, grounding techniques, and responsible AI principles. More ❯

frameworks Expertise in Microsoft Graph API, Microsoft 365 compliance and security, and identity management. Experience with Copilot Studio and building custom Copilot agents or plugins. Familiarity with REST APIs, JSON, OAuth, and integration patterns with enterprise systems (e.g., CRM, ERP, data lakes). Understanding of prompt engineering, grounding techniques, and responsible AI principles. More ❯

and Dataweave 2 Anypoint Platform to include: Runtime Manager Exchange Design Studio Anypoint MQ Anypoint API Manager Anypoint Studio Mule 4 Runtime Clusters Supporting Tools and knowledge Postman JSON/XML Rest APIs Event APIs (Webhooks) RAML SQL What you need to do now If you're interested in this role, click 'apply now' to forward an up-to-date More ❯

and Dataweave 2 Anypoint Platform to include: Runtime Manager Exchange Design Studio Anypoint MQ Anypoint API Manager Anypoint Studio Mule 4 Runtime Clusters Supporting Tools and knowledge Postman JSON/XML Rest APIs Event APIs (Webhooks) RAML SQL What you need to do now If you're interested in this role, click 'apply now' to forward an up-to-date More ❯

required: Solid Public Key Infrastructure experience. Solid Key Management experience, including BYOK and HYOK. Solid Certificate Management and Automation Experience. Experience in scripting in (i.e., PowerShell, REST API, PowerShell, JSON). If you'd like to discuss this PKI Architect role in further detail, please send your updated CV to (url removed) and I will get in touch. More ❯

web services, and messaging systems. Collaborate with business analysts and architects to define integration requirements and strategies. Develop and maintain integration components using technologies such as Java, REST/JSON, XML, and Enterprise Messaging Systems. Ensure integration solutions adhere to security, compliance, and performance standards. Manage and mentor a team of integration developers. Conduct code reviews and enforce best practices … defect triage and resolution. What are we looking for? 8+ years of software development experience with a strong focus on system integration. Proficiency in Java/J2EE, REST/JSON, XML, SQL, Spring, Hibernate, and messaging systems (e.g., JMS). Experience with integration platforms and middleware (e.g., MuleSoft, Apache Camel, Azure Integration Services, and AWS Integration Services). Experience with More ❯

Integration Cloud (OIC) Solid background with Oracle Fusion Cloud applications (ERP/HCM) Strong skills in designing, building, and unit testing integrations and web services (SOAP/REST/JSON) Practical use of Oracle VBCS for custom development Familiarity with system interfaces in a PaaS environment Knowledge of integration technologies: OAuth, IAM, JWT, Git, XML, JSON, XSLT, Postman, Curl Ability More ❯