1 to 25 of 47 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 ❯

/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 ❯

Agile cross-functional team. Skills and Experience * Strong proficiency in Swift and iOS SDKs, with a deep understanding of UIKit, SwiftUI, Combine, and Core frameworks. * Experience with RESTful APIs, JSON, and mobile architecture patterns (MVVM, Clean Architecture). * Familiarity with Xcode, GitHub, mobile CI/CD tools, automated testing frameworks and the app store deployment process. * Proven experience delivering high 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 ❯

agile delivery. Excellent problem-solving skills and a proactive, team-oriented approach. Confident client-facing communication skills. Desirable Skills & Experience Experience with Apache NiFi and Node.js . Familiarity with JSON, XML, XSD, and XSLT . Knowledge of Jenkins, Maven, BitBucket, and Jira . Exposure to AWS and cloud technologies. Experience working within agile methodologies (Scrum, Kanban). To Apply: Send 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 ❯

Playwright using Javascript/Typescript. Create and maintain test scripts utilising WebDriver, Selenium, Gherkin, and Cucumber Performance testing using JMeter Write clear and concise test cases and scenarios using JSON data structures to validate application features. Conduct thorough testing of user interfaces, ensuring compliance with HTML and CSS standards. Collaborate with developers and product teams to define testing requirements and More ❯

with Radar Live and Radar Base configuration. • Proficient in scripting logic, rating algorithm development, and pricing rule configuration. • Knowledge of insurance pricing, underwriting processes, and actuarial principles. • Familiarity with JSON, XML, or similar data structures used for model inputs/outputs. • Experience integrating Radar Live with policy administration systems (e.g., Guidewire, Duck Creek) is a plus. • Strong analytical and problem More ❯

WTW Radar Live and Radar Base configuration. · Proficient in scripting logic, rating algorithm development, and pricing rule configuration. · Knowledge of insurance pricing, underwriting processes, and actuarial principles. · Familiarity with JSON, XML, or similar data structures used for model inputs/outputs. · Experience integrating Radar Live with policy administration systems (e.g., Guidewire, Duck Creek) is a plus. · Strong analytical and problem More ❯

applications or APIs Strong analytical and troubleshooting skills with a proactive, ownership-driven attitude Excellent communication and teamwork abilities Nice to Have Experience with Dynamics 365 CRM Knowledge of JSON, PowerShell, or automation tools like TeamCity Familiarity with financial or wealth management software If you’re interested in the role, then please apply More ❯

into scalable data solutions, ensuring alignment with governance and best practices. The position involves analysing data flows, embedding metadata management, and supporting both structured and semi-structured data, including JSON and XML. Proficiency with Sparx Enterprise Architect, Erwin, PowerDesigner, or Visual Paradigm is key, alongside familiarity with SQL, Python, and financial data standards such as FIBO, FIX, or FpML. Drawing More ❯

developing with TransFICC’s Connectivity Platform. Experience with electronic market protocols: FIX (4.x/5.x) Market-specific APIs (Tradeweb, Bloomberg, MTS, etc.) Binary/Streaming protocols (ITCH, FAST, SBE, JSON over TCP). Familiarity with low-latency patterns, high-throughput messaging, and microservices. Additional Skills Experience with Linux, shell scripting, and performance analysis tools. Knowledge of Kafka, Redis, Aerospike, or More ❯

/Iceberg, Cassandra, Clickhouse, Kafka, etc.) and knowledge of their associated trade-offs. Experience with multiple data formats and serialization systems (e.g. Arrow, Parquet, Protobuf/gRPC, Avro, Thrift, JSON, etc.) Experience managing data pipeline orchestration systems (e.g. Kubernetes, Argo Workflows, Airflow, Prefect, Dagster, etc.) Proven experience in managing the operational aspects of large data pipelines such as backfilling datasets 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 and I will get in touch. More ❯

workflows and enhance operational performance. Required Skills & Qualifications Proficiency in Power Apps, Power Automate, and SharePoint, Strong command of Power Fx and formula-based logic. Familiarity with REST APIs, JSON, and custom connectors. Understanding of role-based security, environment management, and DLP policies. Excellent communication and problem-solving skills This role offers genuine opportunities for career development, ongoing training, and More ❯

Lead technical design using Medallion architecture and Azure ServicesCreate conceptual diagrams, source-to-target mapping, and dimensional data modelsGuide the data engineering team on development with ADF, Databricks, Python, JSON, and YAMLImplement performance optimization strategies during data transformationDeploy code artifacts using GitHub Workflows/CI-CD pipelines Collaborate effectively with team members and stakeholdersOptional: Work with Log Analytics and KQL More ❯

in equal measure Proven experience integrating security into agile environments Strong working knowledge of Azure PaaS and Azure DevOps (CI/CD) Familiarity with scripting languages like PowerShell, YAML, JSON Hands-on with application security tools and DevSecOps processes Understanding of frameworks and standards like OWASP, NIST SSDF, ISO27001, NCSC Experience with threat modelling, risk assessments, and secure design reviews More ❯

in equal measure Proven experience integrating security into agile environments Strong working knowledge of Azure PaaS and Azure DevOps (CI/CD) Familiarity with scripting languages like PowerShell, YAML, JSON Hands-on with application security tools and DevSecOps processes Understanding of frameworks and standards like OWASP, NIST SSDF, ISO27001, NCSC Experience with threat modelling, risk assessments, and secure design reviews More ❯

Power BI, Looker, or equivalent Strong understanding of UX/UI principles and visual storytelling through data Working knowledge of creating data connections - e.g. SQL and relational databases, DataBricks, JSON files, API services, Data Lakes Meticulous attention to detail with a user-first mindset Excellent communication and collaboration skills across technical and non-technical teams Comfortable working in agile, cross More ❯

integration systems Experience with dependency injection containers Experience with network protocols such as HTTP, TLS, TCP Experience with service oriented architecture Experience with web services technology such as REST, JSON, or Thrift Experience with multi-threaded programming Experience with design patterns What you can expect: At Global Relay, there's no ceiling to what you can achieve. It's the More ❯

Fusion Cloud Demonstrated experience connecting Oracle ERP and HCM through Oracle Integration Cloud Expert skills in developing and unit testing integration components and web services (SOAP/REST/JSON Payload) using OIC, Postman, and Curl Solid experience with PaaS Cloud system interfaces To apply, please submit your latest CV for review. More ❯

ideally within financial services or consulting Strong knowledge of relational and dimensional design (3NF, star, snowflake) Proficient in ERWin, Sparx, or similar tools Experience working with semi-structured data (JSON, XML, Parquet) Excellent communication and client-facing skills More ❯

years of Technical Account Management, Sales engineering or Support engineering experience in the B2B enterprise Software/SaaS/payments industry Good knowledge in HTTP, JavaScript, RESTful APIs, JSON, OAuth and SQL Strong customer focus with an ability to manage multiple priorities and perform in a fast-paced work environment Excellent written and verbal communication skills to effectively communicate and More ❯