1 to 25 of 127 Permanent JSON Jobs in London

Software Engineer

Hiring Organisation
Nexus Jobs
Location
London, UK
Employment Type
Full-time
alerts, dashboards, runbooks, etc.)Experience working with Azure DevOps and CI/CD pipeline. Knowledge and some experience of using Serverless, SOAP, XML, REST, JSON, EDI, XSLT, etc. Knowledge and some development experience using MS SQL Server (SSIS, T-SQL, Stored procedures, Functions, Views, Queries, Datatype conversions, etc.).Experience working ...

Senior Salesforce Developer

Location
Greater London, England, United Kingdom
building modern UI components with Lightning Web Components (LWC) and Aura. Integrations: Proven track record of designing and executing complex API integrations (REST, SOAP, JSON, Event‐Driven Architectures). DevOps & Tooling: Proficient with Git‐based version control, SFDX, metadata deployment pipelines, and automated testing frameworks (>85% code coverage standards). ...

Senior Backend Developer with C# .net

Hiring Organisation
Nexus Jobs
Location
London, UK
Employment Type
Full-time
with JIRA and ConfluenceCapable of working with (and developing) multiple (REST) APIs documented with e.g. OpenAPI/swagger and other API messaging formats e.g. JSON, XML, SOAPExperience of PowerBI, PowerQuery and RExperience of structured testing and quality assurance approaches (e.g. Test Driven Development and Behaviour Driven Development)A positive ...

QA Engineer - PA26Q3QAJH101

Hiring Organisation
SS&C Technologies
Location
London, UK
Employment Type
Full-time
ability to work effectively across technical and business teams. Nice to Have: Experience within financial services or fintech, particularly testing financial systems, XML, JSON, FIX, SFTP, or Swift messaging. Familiarity with MCP (Model Context Protocol) integrations and AI agent workflows. Experience testing event-driven architectures, including Azure Service ...

Senior AI Workplace Engineer – Secure Microsoft 365 Collaboration, AI

Location
Greater London, England, United Kingdom
Azure AD), and Microsoft Active Directory Experience with cross-tenant migration, automation, and multi-tenant environments Proven expertise in PowerShell, PnP, Python, JavaScript, C#, JSON, Power Query (DAX), REST APIs, and GraphQL Experience with Microsoft Dataverse, Microsoft SQL, MySQL, and AI-driven data analytics Strong understanding of AI governance, compliance ...

AI Workplace Senior Engineer

Hiring Organisation
INNOVATIVE TECH PEOPLE LTD
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£95,000
Security. Hands-on experience with Purview, governance policies, cross-tenant migrations, automation, and multi-tenant environments. Technical skills across PowerShell, PnP, Python, JavaScript, C#, JSON, Power Query/DAX, REST APIs, GraphQL, Dataverse, and SQL databases. Good understanding of AI governance, compliance, responsible AI, and Microsoft 365 Copilot. Excellent communication ...

AI Solutions Architect

Hiring Organisation
INNOVATIVE TECH PEOPLE LTD
Location
City of London, London, United Kingdom
Employment Type
Permanent
compliance. Experience with Microsoft Copilot, Copilot Studio, AI governance, information architecture, and responsible AI practices. Strong technical background across PowerShell, PnP, Python, JavaScript, C#, JSON, REST APIs, GraphQL, SQL, and automation. Excellent client-facing communication, leadership, stakeholder management, and consulting skills. Desirable skills: Azure AI services, Azure landing zones, infrastructure ...

AI Workplace Solution Architect – Microsoft 365, AI

Location
Greater London, England, United Kingdom
architectural experience with Power Platform, including Power Apps, Power Automate, Power BI Desktop, and Microsoft Dataverse Expertise in PowerShell, PnP, Python, JavaScript, C#, JSON, Power Query (DAX), REST APIs, and GraphQL Experience with Microsoft Dataverse, Microsoft SQL, MySQL, and AI-driven data analytics Experience designing cross-tenant migrations, automation ...

AI Workplace Solution Architect (Microsoft 365 & AI)

Hiring Organisation
Bearing Point
Location
London, UK
Employment Type
Full-time
Power Platform (Power Apps, Power Automate, Power BI Desktop) and Microsoft Dataverse. Proven expertise in Languages; PowerShell, PnP, Python (for AI scripting), JavaScript, C#, JSON, Power Query (DAX), and experience with REST APIs and GraphQL for integrating AI services. Databases; Microsoft Dataverse, Microsoft SQL, MySQL, and experience with AI-driven ...

Senior MuleSoft Developer

Location
Greater London, England, United Kingdom
andarticulatetechnicaldecisionsclearlytotechnicaland businessaudiences. EssentialExperience&Skills Proven TrackRecord:5+ yearsofhands-onintegration developmentexperiencewiththeMuleSoftAnypoint Platform. CoreLanguages:DeepexpertiseinDataWeave2.0,RAML/OAS,andcoreJava/Object-OrientedProgramming principles. Integrations:StrongbackgroundinREST,SOAP,JSON, XML,event-drivenmessaging(Kafka,JMS),and connectorconfigs(Salesforce,Database,HTTP). Delivery:ExperienceworkinginAgile/Scrumenvironmentswithversioncontroltools(Git)andCI/CDtools. Communication:Exceptionalverbalandwritten communicationskillsinUKEnglish. Eligibility:UnrestrictedRighttoWorkintheUK. DesirableExperience ...

Copilot Application Developer

Hiring Organisation
Hunter Selection
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£70,000
experience with Power Apps and Power Automate. Experience or exposure to Copilot Studio, AI Agents, or Microsoft AI technologies. Knowledge of Dataverse, Power FX, JSON, JavaScript, and API integrations. Familiarity with Microsoft 365 and Azure environments. Strong problem-solving and analytical skills. Excellent communication skills and the ability to work ...

Software Engineer

Hiring Organisation
Edenred
Location
London, UK
Employment Type
Full-time
SkillsAwareness of clean coding and SOLID principles. Exposure to AWS cloud services. Experience with JUnit or other testing tools. Basic knowledge of XML/JSON data formats and Unix shell scripting. Familiarity with version control and build tools like Git, Maven, Jenkins. Behavioural CompetenciesCollaborative team member eager to support team ...

Senior Java Developer (Azure)

Location
Greater London, England, United Kingdom
right job, can work with Relational (such as Postgres) and Non-relational (DynamoDb, MongoDb) data stores and is at ease when working with JSON and XML technologies We Offer Growth opportunities including access to Udemy Flexible and autonomous working Competitive salary Annual bonus 25 days holiday + bank holidays. After ...

Principal Integration Engineer

Location
Greater London, England, United Kingdom
Experience designing scalable, secure and maintainable integration architectures in a complex enterprise environment Solid understanding of APIs such as REST and SOAP, XML and JSON, as well as file‐based integrations including EDI and CSV A proven track record of owning an integration platform end‐to‐end, with a strong ...

Solutions Architect, Strategic Applications

Location
Greater London, England, United Kingdom
design. Maintain awareness of commercial and legal consequences of architectural failures. Qualifications, Skills and Experience Technical Skills Expertise in integration methods (REST, Graph API, JSON, XML, OAuth, SSO, event‐driven architecture). Experience integrating LLM‐based and agentic platforms, including vendor‐provided MCPs and model APIs. Knowledge of secure ...

Senior Data Privacy & BigID Consultant

Location
City Of London, England, United Kingdom
basics (IAM, RBAC) Encryption, tokenization, and data masking techniques Scripting & Automation Python/Bash for automation and data profiling scripts REST API integration and JSON/XML data handling QUALIFICATIONS Experience 7+ years in data governance, privacy, or information security 4+ years in a client-facing consulting or professional services ...

Fullstack Java Developer

Location
Greater London, England, United Kingdom
essential. Anypoint Studio, Anypoint Exchange, API Manager, Runtime Manager. Experienced in developing integrations using Mule 4 (flows, connectors, components), building and consuming APIs, handling JSON and XML payloads We Care About Our Employees' Happiness By providing: Pension Scheme - contributions matched up to 10% Private medical Cover Income Protection Life Assurance ...

Lead AI Software Engineer

Hiring Organisation
Wells Fargo
Location
London, UK
Employment Type
Full-time
designing MCP-compatible tools, reusable skills, and modular agent capabilities. Familiarity with tool schema design and structured output validation using tools such as Pydantic, JSON Schema, or Zod. Experience with long-running autonomous agents that support retries, state persistence, error recovery, graceful termination, and multi-step workflow execution. Experience with ...

Senior C# / .NET Developer (Risk/ Securities Lending) - Banking

Hiring Organisation
Robert Walters
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£400.00 - £650.00 per day
Operations and Compliance teams What you'll bring: Strong C# and modern .NET experience Excellent OOP and software-design skills Experience with REST APIs, JSON and SQL databases Experience with cloud platforms (Azure/AWS) Hands on with messaging technologies (e.g. Kafka) Experience in front to back trading or financing ...

Senior Android Developer

Hiring Organisation
Stott & May Professional Search Limited
Location
London, United Kingdom
Employment Type
Permanent
Salary
£90,000
Android SDKs, with a deep understanding of Jetpack libraries, Compose and modern Android architecture components. * Kotlin Multiplatform (KMM, KMP) * Experience with RESTful APIs, JSON, and mobile architecture patterns (MVVM, Clean Architecture). * Familiarity with Android Studio, GitHub, mobile CI/CD tools, automated testing frameworks and the Play store deployment ...

QA Engineer

Hiring Organisation
Harnham - Data & Analytics Recruitment
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£65,000 - £75,000 per annum
tools such as Rest Assured, Postman, Swagger or similar Hands-on UI test automation experience using Selenium, Playwright, Selenide, or comparable technologies Understanding of JSON, XML, HTTP protocols, and web application architecture Experience working with CI/CD pipelines and modern software delivery practices Strong knowledge of test frameworks such ...

Senior DevOps Solutions Engineer - London & Edinburgh, United Kingdom

Location
Greater London, England, United Kingdom
within commutable distance. Solid experience in DevOps and Platform Engineering. Proven architectural and design skills. Programming and scripting languages: Python, Go, YAML, JSON, etc. Experience with policy as code (e.g., Open Policy Agent and Rego). Git and version control workflows. CI/CD tools: GitHub Actions, GitLab, etc. Container ...

Technical Architect Fintech

Hiring Organisation
Quant Capital
Location
London, UK
Employment Type
Full-time
various application software and hardware components Excellent understanding of programming language, frameworks and processes (C#, C++, SQL Server, Java, ASP.NET MVC, WCF, HTML, XML, JSON, CSS, Bootstrap, AJAX, jQuery, UML, REST API, React, AngularJS) Experience of conceptual, logical and physical data modelling Excellent understanding of cloud based infrastructure and software ...

Director, Full-Stack Engineer

Hiring Organisation
Hackajob Ltd
Location
South West London, London, United Kingdom
Employment Type
Permanent
experience in the securities or financial services industry is a plus Prior experience using a specific application development toolkit, including Python, SQL, Java, JavaScript, JSON, and TypeScript Strong communication, organization, teamwork, and interpersonal skills, including the ability to support mentoring Demonstrated understanding of interdependencies and business impact of future ...

Senior Full Stack Developer (Python) - Networks, Vice President

Hiring Organisation
State Street Bank
Location
London, UK
Employment Type
Full-time
control, authentication and authorization controls.· Extensive experience in communication with other systems via restful API's.· Solid experience with of web data formats including JSON and XML· Experience with automating networking technologies a plus.· Familiarity with front-end web development using HTML, bootstrap, CSS, JavaScript and React.· Working knowledge ...