101 to 125 of 191 JSON Jobs in London

Pre-Sales Engineer

Location
Greater London, England, United Kingdom
industry, including insurers, brokers or MGAs. Understanding of finance, accounting or payment operations. Experience with APIs, system integrations and structured data formats such as JSON, XML and CSV. Experience working with enterprise applications including ERP, banking platforms or Policy Administration Systems. Experience configuring software solutions for demonstrations or customer Proofs ...

Workday Integration Specialist

Location
Greater London, England, United Kingdom
understanding of HR, Payroll and people data processes, with knowledge of data governance, security controls, compliance requirements and integration best practices.* Proficiency in XML, JSON and XSLT, with experience interpreting technical specifications, working with vendor integrations and translating business requirements into effective technical solutions.* Strong analytical and problem-solving skills ...

Senior Python Developer

Location
Greater London, England, United Kingdom
ability to explain technical ideas clearly to technical and non-technical audiences Experience working in multidisciplinary teams Desirable Experience with Pydantic and/or JSON Schema Familiarity with GitLab CI/CD A strong grasp of geometry and physics, ideally including building physics Understanding of decarbonisation and energy systems Experience ...

Manager, Sales Engineering Solutions engineering London

Location
Greater London, England, United Kingdom
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. ...

Technical Success Analyst - UK

Location
Greater London, England, United Kingdom
Familiarity with APIs, software integrations, or payments systems. Experience with Marqeta or similar fintech platforms. Ability to read technical documentation or basic code (e.g., JSON, SQL, scripting). Background in training, enablement, or documentation. Knowledge of customer onboarding or implementation processes in a SaaS or fintech environment. Typical Process Application ...

Hybrid Software Engineer - Integrations (Payroll & HR)

Location
Greater London, England, United Kingdom
platform. You’ll work in a hybrid setup, three days in the London office, with remote work options. Required: 2+ years Python, REST/JSON/XML, SQL, and AWS experience; collaborative, organized and client‐facing capable. #J-18808-Ljbffr ...

Full Stack Software Developer – City London

Location
City Of London, England, United Kingdom
taking a SAAS product through a full build and ship cycle. Information Technology Skills Required: Angular 2, Javascript, AWS, GIT, Front end development, PHP, JSON Location is City London Must have a first degree. Salary will be dependent upon experience – in the range £35K - £50K. #J-18808-Ljbffr ...

AI Full Stack Engineer

Hiring Organisation
Randstad Technologies Recruitment
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£350 - £388/day
Weeks, 2 Days) Hours: 40 hours/week Rate: 291 PAYE/388 Umbrella Core Technical Stack Programming & APIs: Python, RESTful API development, JSON Schema, Pydantic. AI & LLMs: Gemini, OpenAI, Claude. Frameworks & Orchestration: Google ADK, LangChain, LangGraph. Data & Search: AWS OpenSearch (Indexing and Vector embeddings - Highly emphasized ), Database Architecture (Intermediate ...

Front End React Developer

Hiring Organisation
Ascend Consulting
Location
NW7, Mill Hill, Greater London, United Kingdom
Employment Type
Permanent
Salary
£45000 - £80000/annum Great Benefits
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 ...

Software Developer

Location
Greater London, England, United Kingdom
programming, guaranteeing similarity and security across frameworks. Inventively add to new elements and bug fixes utilizing our cutting-edge innovation stack including Java Script, JSON, Node.js, and React. Team up intimately with project directors, experts, and engineers to adjust programming answers for business needs. Make itemized specialized determinations and extend ...

Junior Data Analyst

Location
Greater London, England, United Kingdom
read and write simple SQL statements Exposure to AI tools (ChatGPT, Claude...) Strong skills in Google Sheets/Excel Understanding of different data formats – JSON, XML, CSV, etc. *These skills and experiences serve as a guide. If you believe you have the ability to succeed in this role, we encourage ...

RPG Developer

Location
Greater London, England, United Kingdom
Experience with change management tools Familiarity with RDi or other modern development environments Knowledge of APIs, web services, or data exchange formats such as JSON and XML Core Competencies Demonstrates expertise in designing, developing, and maintaining applications on the IBM i platform, with strong skills in RPG, CL, and SQL. ...

Product Technology Manager

Hiring Organisation
Hackajob Ltd
Location
South West London, London, United Kingdom
Employment Type
Permanent
Salary
£90,000
technical role. 3 years of experience in operations management (e.g., process improvement, operational reviews, workflow optimization). Experience with web technologies (HTTP/REST, JSON) and programming in Python, JavaScript/TypeScript, Go, or Java. Experience working with e-commerce platforms, APIs, webhooks, or merchant integration ecosystems. Preferred qualifications: Master ...

Delivery Solutions Engineer

Location
Greater London, England, United Kingdom
Product/R&D. Requirements 3+ years in solutions engineering,system engineering, or system integration (SaaS/web). Strong knowledge of REST APIs, JSON, HTTP, and relational databases (SQL). Understanding complex system architectures and data flow. Experience in debugging, troubleshooting, and analysinglogs. Familiarity with HTML/CSS; JavaScript ...

Product Technology Manager

Location
Westminster, West End, United Kingdom
technical role. 3 years of experience in operations management (e.g., process improvement, operational reviews, workflow optimization). Experience with web technologies (HTTP/REST, JSON) and programming in Python, JavaScript/TypeScript, Go, or Java. Experience working with e-commerce platforms, APIs, webhooks, or merchant integration ecosystems. Preferred qualifications: Master ...

React.js Developer

Location
City Of London, England, United Kingdom
with data structure libraries (e.g., Immutable.js) Knowledge of isomorphic React is a plus Familiarity with RESTful APIs Knowledge of modern authorization mechanisms, such as JSON Web Tokens Familiarity with modern front-end build pipelines and tools Experience with common front-end development tools such as Babel, Webpack, NPM, etc. Ability ...

Pre-Sales Technical Architect for SaaS Integrations

Location
Greater London, England, United Kingdom
Experience in a technical pre-sales, solution architecture, or sales engineering role within a SaaS environment for large enterprise clients. Familiarity with RESTful APIs, JSON/XML, authentication protocols (OAuth, SAML), and cloud platforms (AWS, Azure, GCP). Understanding of cloud data platforms (Azure experience preferred). Familiarity with version ...

Senior Business Analyst (Broking Solution - Lloyd's of London)

Hiring Organisation
Hackajob Ltd
Location
London, United Kingdom
Employment Type
Permanent
Salary
£90,000
Proven ability to work in cross-functional, team-oriented environments and to drive clarity in complex, multi-stakeholder settings. Technical fluency advantageous particularly with JSON (or proficiency in another coding/query language) to support API/integration conversations. Self-motivated, organised, and comfortable working independently while managing multiple concurrent ...

Lead Identity & Security Engineer (12 Month FTC)

Location
Greater London, England, United Kingdom
platform. Experience & Technical Skills We are particularly interested in candidates with strong experience in: OAuth 2.0 and OpenID Connect, including practical implementation and troubleshooting. JSON Web Tokens (JWT) and token-based authentication and authorisation. Identity Providers (IdPs) and enterprise identity and access management solutions. Java and development of secure, production ...

Senior Offensive Security Analyst London, England, United Kingdom

Location
Greater London, England, United Kingdom
ability to articulate findings clearly to technical and non‐technical stakeholders Perform in‐depth penetration testing on APIs with a primary focus on OAuth, JSON Web Tokens (JWT), token validation, and permission handling Assess services both from the perspective of an external attacker and through code review, analysing the logic ...

Principal Software Developer (Web)

Location
City Of London, England, United Kingdom
scales. Collaboration: Partner closely with the Desktop application development team to ensure feature compatibility and parity Tech Stack Backend: Scala, Play Framework, REST/JSON and gRPC Frontend: React, TypeScript, AG-Grid Mobile: Current app in CodenameOne, target migration to React Native (or similar JS-based cross-platform framework) Tooling ...

Principal Software Engineer - C#

Location
City Of London, England, United Kingdom
with high‐throughput trade/market‐data processing at scale. Cloud platform experience (AWS or equivalent); containerisation and orchestration. Relational data and canonical/JSON data contract design. Design‐system principles and component‐library development. Role Band & Level Manager, 7 #LI-Hybrid #LI-DIR Location UK – 135 Bishopsgate – London #J ...

Technical Solutions Engineer

Location
Greater London, England, United Kingdom
command line environments. Familiarity with configuration management, source control, and basic scripting (Python preferred). Exposure to FIX protocol, REST APIs, and JSON-based integrations. Strong organizational skills and ability to manage multiple concurrent implementations. Preferred Experience onboarding clients to trading, OMS, EMS, or portfolio systems. Understanding of capital markets ...

Senior Consultant - Clinical Data Programming

Location
Greater London, England, United Kingdom
resolution, datasets, statistical reporting) Solid understanding of clinical trial processes, particularly around data collection and review Programming experience in languages such as SAS, R, JSON, Python, or SQL, with the ability to pick up new SQL-based languages Background in the life sciences industry (pharma, biotech, medical device ...

Solution Architect

Location
Greater London, England, United Kingdom
Pega, Salesforce, or ServiceNow), working knowledge of integration patterns (REST APIs, webhooks, SSO/SAML, data import/export), and the ability to read JSON/XML (basic scripting or query experience a plus). Landscape & tooling: Awareness of the TPRM/procurement technology landscape (Coupa, Ariba, ServiceNow, Archer, OneTrust ...