1 to 25 of 118 JSON Jobs in London

These include:Must haves Proven track record as a developer in an insurance or financial services environment; Strong working knowledge of programming languages (e.g. SQL, C#, VBA, Javascript, XML, JSON, Python); Experience building Excel-integrated applications and/or web-based pricing platforms. Strong database skills (SQL Server or similar) and data integration experience; Proactive, collaborative, flexible and adaptable with More ❯

strong experience in test automation with an ETRM platform with as many of the following as possible: Programming & Scripting: Python, Java, JavaScript, C++, Scriban Web Technologies: RESTful APIs, HTTP, JSON, HTML, CSS, Node.js Databases: SQL Server, MySQL, PostgreSQL, MongoDB Tools & Frameworks: Git, Docker, Jenkins, Kubernetes, Agile (Scrum & Kanban), JIRA, Pytest, Powershell Operating Systems: Linux, Windows Additional skills that will set More ❯

/deploying apps. Experience with working with and developing multiple (REST) APIs, documented with Open API/swagger etc is also desirable as is other API messaging formats e.g. JSON, XML, SOAP This full stack developer role is offering a starting salary up to 50K plus fantastic benefits which include a generous travel discount scheme, a cycle to work scheme More ❯

or FastAPI) . Experience with MySQL/PostgreSQL and familiarity with NoSQL databases . Understanding of object-oriented programming , design patterns, and software architecture principles. Knowledge of RESTful APIs , JSON, and web services. Familiarity with version control systems (Git) . Experience working in Agile/Scrum environments . Desirable Skills Exposure to cloud platforms (AWS, Azure, or GCP). Knowledge More ❯

or FastAPI) . Experience with MySQL/PostgreSQL and familiarity with NoSQL databases . Understanding of object-oriented programming , design patterns, and software architecture principles. Knowledge of RESTful APIs , JSON, and web services. Familiarity with version control systems (Git) . Experience working in Agile/Scrum environments . Desirable Skills Exposure to cloud platforms (AWS, Azure, or GCP). Knowledge More ❯

optimising data models and complex queries in MySQL and MongoDB , supporting scalable, data-driven web applications. Extensive experience in designing, consuming, and documenting RESTful APIs , with strong competency in JSON , OAuth , JWT , and integration with third-party services. Advanced skills in Git workflows and CI/CD pipelines, with practical experience using Bitbucket , Azure DevOps , GitHub Actions , or similar tools More ❯

well as experience working with both synchronous and asynchronous endpoints Experience with Snowflake or Redshift with a strong understanding of SQL. Proficient in Python and Pandas Experience working with JSON and XML Strong understanding of cloud computing concepts and services (AWS preferably) Experience with Git or equivalent version control systems and CI/CD pipelines. Familiarity with dbt a plus More ❯

well as experience working with both synchronous and asynchronous endpoints Experience with Snowflake or Redshift with a strong understanding of SQL. Proficient in Python and Pandas Experience working with JSON and XML Strong understanding of cloud computing concepts and services (AWS preferably) Experience with Git or equivalent version control systems and CI/CD pipelines. Familiarity with dbt a plus More ❯

pace and scale. The toolkit you’ll use 🌳 Data Science & Engineering: Python (NumPy, Pandas, scikit-learn, PyTorch/TensorFlow), SQL, NoSQL, Spark, big data ecosystems Visualisation & APIs: REST/JSON, Postman, Flask/FastAPI, Power BI/Tableau, D3.js DevOps & Cloud: CI/CD, Docker, AWS (S3, Lambda, SageMaker), Kubernetes, Terraform/CDK ML Ops & Automation: MLFlow, feature stores, model More ❯

pace and scale. The toolkit you’ll use 🌳 Data Science & Engineering: Python (NumPy, Pandas, scikit-learn, PyTorch/TensorFlow), SQL, NoSQL, Spark, big data ecosystems Visualisation & APIs: REST/JSON, Postman, Flask/FastAPI, Power BI/Tableau, D3.js DevOps & Cloud: CI/CD, Docker, AWS (S3, Lambda, SageMaker), Kubernetes, Terraform/CDK ML Ops & Automation: MLFlow, feature stores, model More ❯

Platform technologies (Power Automate, Power Pages/Portals). Advanced configuration, customisation, and integration expertise in Dynamics 365 CE. Strong knowledge of integration technologies such as Logic Apps, HTTP, JSON, AJAX, OAuth2. Proficiency in .NET, C#, JavaScript, and related programming languages. Significant experience developing Plugins for Dynamics 365. Strong experience with JavaScript and HTML to enhance Dynamics form customisation. Proven More ❯

Platform technologies (Power Automate, Power Pages/Portals). Advanced configuration, customisation, and integration expertise in Dynamics 365 CE. Strong knowledge of integration technologies such as Logic Apps, HTTP, JSON, AJAX, OAuth2. Proficiency in .NET, C#, JavaScript, and related programming languages. Significant experience developing Plugins for Dynamics 365. Strong experience with JavaScript and HTML to enhance Dynamics form customisation. Proven More ❯

principles •Strong JavaScript, TypeScript HTML5, and CSS3 skills •Experience with popular React.js workflows (such as Redux) •Familiarity with RESTful APIs and integration •Knowledge of modern authorization mechanisms, such as JSON Web Tokens •Understanding of front-end build tools and pipelines •Excellent problem-solving and communication skills •A strong attention to detail, and a passion for delivering high-quality code •Adaptability More ❯

principles •Strong JavaScript, TypeScript HTML5, and CSS3 skills •Experience with popular React.js workflows (such as Redux) •Familiarity with RESTful APIs and integration •Knowledge of modern authorization mechanisms, such as JSON Web Tokens •Understanding of front-end build tools and pipelines •Excellent problem-solving and communication skills •A strong attention to detail, and a passion for delivering high-quality code •Adaptability More ❯

lifecycle from design to governance and management. Working with batch message processing, Salesforce, file, and database connectors. Using MUnit and practising test-driven development. Experience with REST, HTTP, MQ, JSON, XML, and SOA. Familiarity with CI/CD pipelines (Maven, Jenkins, Bitbucket, Git, MuleSoft). Desirable Experience working in consulting or public sector environments. Experience as a microservices developer. MuleSoft More ❯

lifecycle from design to governance and management. Working with batch message processing, Salesforce, file, and database connectors. Using MUnit and practising test-driven development. Experience with REST, HTTP, MQ, JSON, XML, and SOA. Familiarity with CI/CD pipelines (Maven, Jenkins, Bitbucket, Git, MuleSoft). Desirable Experience working in consulting or public sector environments. Experience as a microservices developer. MuleSoft More ❯

ability to present advanced technical topics and deliver tailored demos to different audiences Experience working in middleware technology, ideally within API management, IAM or integration Good knowledge of REST, JSON and XML Some scripting experience, ideally with Java or JavaScript/Python Hands-on experience with cloud providers (AWS, Azure, GCP) Ability to design deployment architectures (HA, DR, etc) Understanding More ❯

SIEM tools, vulnerability management, malware analysis, and firewall configurations Ability to communicate complex technical solutions to a wide range of audiences, both technical and non-technical Skilled in Python, JSON, YAML, Bash, or other relevant scripting languages 3–5 years of experience in Technical Support, or similar hands-on roles Bachelor’s/Master’s degree in a technical field More ❯

SIEM tools, vulnerability management, malware analysis, and firewall configurations Ability to communicate complex technical solutions to a wide range of audiences, both technical and non-technical Skilled in Python, JSON, YAML, Bash, or other relevant scripting languages 3–5 years of experience in Technical Support, or similar hands-on roles Bachelor's/Master's degree in a technical field More ❯

Delta Lake, Spark SQL, and best practices for Databricks development, optimization, and deployment. Program in SQL, Python, R, YAML, and JavaScript. Integrate data from multiple sources and formats (CSV, JSON, Parquet, Delta) for downstream analytics, dashboards, and reporting. Apply Azure Purview for governance and quality checks. Monitor pipelines, resolve issues, and enhance data quality processes. Work closely with engineers, data More ❯

Delta Lake, Spark SQL, and best practices for Databricks development, optimization, and deployment. Program in SQL, Python, R, YAML, and JavaScript. Integrate data from multiple sources and formats (CSV, JSON, Parquet, Delta) for downstream analytics, dashboards, and reporting. Apply Azure Purview for governance and quality checks. Monitor pipelines, resolve issues, and enhance data quality processes. Work closely with engineers, data More ❯

engineering team. Partner with senior management, operational leads, and other stakeholders, coaching and supporting a data-driven culture, including KPI definition and reporting frameworks. Accountable for data extraction, transforming JSON & XML, utlising high experience within metadata management. Collaborate with data engineers to develop data, enrich product design and integrate data for predictive models or machine learning. Deliver well-defined, transformed More ❯

engineering team. Partner with senior management, operational leads, and other stakeholders, coaching and supporting a data-driven culture, including KPI definition and reporting frameworks. Accountable for data extraction, transforming JSON & XML, utlising high experience within metadata management. Collaborate with data engineers to develop data, enrich product design and integrate data for predictive models or machine learning. Deliver well-defined, transformed More ❯

Own architecture and technical decisions across squads; accountable for how software is built and shipped. Design and develop distributed, scalable microservices (C# .NET Core or Node.js) and REST/JSON APIs. Build modern React + TypeScript UIs with component-driven design, advanced state management, and reusable frameworks. Leverage AWS services (Lambda, API Gateway, SQS/SNS, Step Functions, S3, IAM More ❯

Own architecture and technical decisions across squads; accountable for how software is built and shipped. Design and develop distributed, scalable microservices (C# .NET Core or Node.js) and REST/JSON APIs. Build modern React + TypeScript UIs with component-driven design, advanced state management, and reusable frameworks. Leverage AWS services (Lambda, API Gateway, SQS/SNS, Step Functions, S3, IAM More ❯