1 to 25 of 29 Permanent JSON Jobs in London

NinjaOne RMM, 3CX, Microsoft 365/Graph API * Strong JavaScript and/or Python for integration scripting and automation * REST API design - webhooks, OAuth, JSON transformation, event-driven architecture * Cross-platform data mapping across multiple SaaS systems * Technical documentation to a professional standard * Comfortable operating autonomously within a management structure ...

NinjaOne RMM, 3CX, Microsoft 365/Graph API* Strong JavaScript and/or Python for integration scripting and automation* REST API design - webhooks, OAuth, JSON transformation, event-driven architecture* Cross-platform data mapping across multiple SaaS systems* Technical documentation to a professional standard* Comfortable operating autonomously within a management structure ...

experience with PostgreSQL, including performance tuning and complex queries. Experience with background job processing using Sidekiq and Redis. Solid understanding of RESTful API design, JSON serialization, and authentication (e.g., JWT, SSO). Hands-on experience with AWS services and containerised deployments (Docker). Experience troubleshooting and supporting production systems. Comfortable ...

skills/knowledge/experience: Strong hands‐on experience with Python for test automation Proven experience using PyTest framework Experience in API automation (REST, JSON, Postman/Newman, requests, etc.) Good understanding of test design techniques, test data management, and reporting Experience with CI/CD tools such as Jenkins ...

system design Develop integrations with third-party systems and internal platforms using APIs Support development of web applications using C#, ASP.NET, Razor, and JSON-based services Skills & Experience 5+ years' experience in .NET Front End development Strong hands-on experience with Blazor (Server and/or WASM) Solid understanding ...

integrations from third-party systems using APIs connected to back-office systems. Build and maintain web applications to support business processes (C#, Razor, ASP.NET, JSON, Redis Cache, Microservices). Technical Skills & Experience 5+ years of professional experience in .NET-based front-end development. 5+ years of hands-on expertise ...

ServiceNow platform, including functionality, database structure, developer APIs, and development tools. Proficient in Web Technologies (e.g., JavaScript, SOAP/REST web services, XML & JSON). An open and friendly personality with strong customer-facing skills in both a virtual and face to face setting (including the ability to deliver presentations ...

/or NDC. Hands-on experience with test management tools such as JIRA, ALM, qTest, Zephyr. Good understanding of APIs (REST/SOAP), XML, JSON, NDC schemas. Knowledge of automation tools (Selenium, Postman, Karate, RestAssured). Experience 8 15+ years in QA/testing, with at least 3+ years ...

with a deep understanding of Jetpack libraries, Compose and modern Android architecture components. * Experience with Kotlin Multiplatform (KMM high desirable) * Experience with RESTful APIs, JSON, and mobile architecture patterns (MVVM, Clean Architecture). * Familiarity with Xcode, Android Studio, GitHub, mobile CI/CD tools, automated testing frameworks ...

agile scrum team Familiarity with financial asset classes and the trading lifecycle Exposure to SQL and object-oriented languages Understanding of XML, FIX, JSON or other messaging formats and protocols Benefits Comprehensive health and wellness coverage Generous annual leave Continuous learning and development resources Competitive salary, retirement planning and financial ...

.Net Developer will have previous experience with: B2C website development & B2C payment platforms Software design & architecture C# & .Net Core React.js &/or Next.js LINQ, JSON & Inversion of Control Azure PaaS, Function Apps, Blob/Table Storage, Service Bus Topics, Azure Search and API Management Infrastructure as Code (ideally Terraform ...

core principles Experience with Redux and RTK (RTKQuery also a bonus) Familiarity with RESTful APIs Knowledge of modern authorization mechanisms, such as JSON Web Token Familiarity with modern front-end build pipelines and tools (Github actions a bonus) Experience with common front-end development tools such as Babel, Webpack ...

engineering experience. Technical Skills: Hands-on experience with automated testing, mocking frameworks, and CI/CD pipelines. Experience with the design and implementation of JSON RESTful APIs, including versioning and backward compatibility. Strong understanding and exposure to object-oriented practices and principles. ...

Strong understanding of OOP & Rails architecture Extensive experience with PostgreSQL (performance tuning, complex queries) Background job processing with Sidekiq & Redis Expertise in RESTful APIs , JSON, JWT, SSO Experience with AWS & Docker Production system support & troubleshooting Strong communication skills & Agile/Scrum experience Ruby on Rails Developer Due to the volume ...

able to prioritise shifting workloads and responsibilities effectively. Familiar with API‐based integration methods, associated best practices, and related tools/frameworks (REST/JSON APIs, Postman). Experience with at least one common front‐end (pure JavaScript, React, Angular, etc.) and back‐end (Java, .NET, Python, Node, etc.) technology. ...

Rails developer with deep expertise in PostgreSQL and background processing via Sidekiq and Redis. You should be highly proficient in building RESTful APIs, managing JSON serialisation, and implementing secure authentication methods like JWT or SSO. Beyond coding, you will possess knowledge of Docker and AWS, alongside the communication skills required ...

concepts or data-driven automation Experience from university projects, internships or placements involving automation or systems design Familiarity with scripting, APIs, or structured data (JSON, XML, etc.) Interest in progressing towards a technical architect or specialist role Qualifications Bachelor’s degree (or equivalent) in Computer Science, Engineering, Information Systems ...

test plans, defects, test reports, MOPs, and change tickets. Good to have skills Practical experience with OpenConfig and vendor - specific NETCONF/YANG, including JSON/XML payloads. Strong understanding of IPv4aaS , particularly MAP-T . Strong understanding of BNG from Nokia (7750) and/or Huawei (CX600/NE8000 ...

customer experience platforms.* 3+ years leading large, strategic, and complex enterprise deals.* Deep technical fluency with web/scripting technologies (HTML, CSS, JavaScript, JSON, LLMs, MCP) and SaaS architectures.* Proven success in positioning the business value of technical solutions and the strategic role of Professional Services and Partners.* Hands ...

+ Bonus and Benefits. You will responsible for full system implementation projects and proof of concept (POC) projects, project management, client on-boarding, optimisation, JSON, Python, APIs, scripting, derivatives and/or trading lifecycle understanding, etc. * Be able to understand, at least at a high level, how Prime Brokerage margin ...

platforms such as Copilot Studio Experience working with generative AI concepts (e.g. prompt design, RAG, grounding) Good understanding of integration patterns (APIs, REST/JSON, event-driven workflows) Experience with Microsoft ecosystem tools such as Power Platform and Microsoft 365 Knowledge of identity, access control, and secure system design Ability ...

needs into technical solutions and scalable workflows Strong stakeholder management skills with experience working across technical and non-technical team Working knowledge of SQL, JSON, or API troubleshooting Experience with customer data platforms (CDPs) and attribution models Exposure to AI-driven automation or agent-based workflows Understanding of data privacy ...

Keyword research & mapping Crawl optimisation SERP features optimisation Experience migrating a website Page speed optimisation Rank tracking Building SEO reports Schema mark-up (incl JSON-LD) Good working knowledge of crawling tools, including Screaming Frog or any cloud-based programs Knowledge of HTML, CSS, JS Experience working on off-site ...

mentoring skills to guide Client Delivery Managers Ability to translate complex client requirements into actionable technical solutions Desirable: Proficiency in API concepts (REST, JSON, authentication methods) Advanced understanding of SaaS product architecture and capabilities Ability to manage multiple technical projects simultaneously What you’ll be offered Recharge and Give Back ...

segmentation, catalogues, and data structures Strong understanding of CRM QA, deliverability principles, and multi-channel communication build processes Confident working with data (SQL, Liquid, JSON, event structures) and partnering with technical teams Proven ability to manage, mentor, or lead a small team, with strong organisational and prioritisation skills Detail-obsessed ...