76 to 100 of 198 JSON Jobs in London

AI Automation / Application Engineer

Hiring Organisation
Randstad Technologies Recruitment
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £600/day
Shiny applications. Integration & Data: Proficient in SQL and connecting services via RESTful APIs. Generative AI: Practical experience integrating LLM APIs, prompt engineering, and structured JSON outputs. Delivery Mindset: Disciplined version control (Git) and ease working iteratively with non-technical end users. Preferred Qualifications The following qualifications are advantageous: Experience with ...

AI Automation / Application Engineer

Hiring Organisation
Randstad Technologies
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£500.00 - £600.00 per day
Shiny applications. Integration & Data: Proficient in SQL and connecting services via RESTful APIs. Generative AI: Practical experience integrating LLM APIs, prompt engineering, and structured JSON outputs. Delivery Mindset: Disciplined version control (Git) and ease working iteratively with non-technical end users. Preferred Qualifications The following qualifications are advantageous: Experience with ...

AI Automation / Application Engineer

Hiring Organisation
Randstad Digital
Location
City of London, South East, United Kingdom
Employment Type
Temporary Contract, On-site
Salary
£500 - £600 per day
Shiny applications. Integration & Data: Proficient in SQL and connecting services via RESTful APIs. Generative AI: Practical experience integrating LLM APIs, prompt engineering, and structured JSON outputs. Delivery Mindset: Disciplined version control (Git) and ease working iteratively with non-technical end users. Preferred Qualifications The following qualifications are advantageous: Experience with ...

Unit4 ERP Technical Developer

Location
Greater London, England, United Kingdom
CS15, LG04) using XML and fixed‐length fields. Knowledge of AG16 and ASQL. Experience working with Unit4 REST and SOAP web services. Skilled in JSON and XML. Familiarity with Visual Basic (highly desirable). Ability to explain technical solutions to non‐technical audiences. Strong relationship‐building skills with clients ...

Senior Service Analyst

Location
City Of London, England, United Kingdom
materials. Nice to Have Experience in fintech, capital markets, structured products or supporting financial-services clients. Knowledge of APIs, Postman, system integrations, XML/JSON, logs, SQL or similar troubleshooting tools. Experience with Jira Service Management, ITIL practices and Major Incident Management. What Success Looks Like Operate confidently within ...

Solutions Architect

Location
London Borough of Harrow, England, United Kingdom
years of experience in a development role, preferably in a customer-facing capacity. Strong technical background with a deep understanding of RESTful APIs, JSON data structures, and front-end technologies like HTML. Hands-on experience with Microsoft ecosystem applications like Sharepoint, O365, MS Teams, Viva Engage and APIs. Experience managing ...

Data and Systems Specialist

Location
Greater London, England, United Kingdom
acceptance testing and change management.* Experience using Power BI or SQL for reporting and data analysis.* Understanding of system integrations, APIs and XML or JSON data formats.**Additional Information**We are looking for someone who is approachable, proactive and committed to helping colleagues get the best from Total Mobile. ...

DevSecOps Engineer

Location
City Of London, England, United Kingdom
into how we build, automate, harden and ship How we're setup We build primarily with JavaScript and TypeScript, using Node.js. We use a JSON format called Apple News Format for Apple News delivery, which we will provide training on. Our data runs on MongoDB ...

AI Analyst (London)

Location
City Of London, England, United Kingdom
reconciling messy datasets You can use SQL and ideally Python or another scripting language to analyse or transform data You have worked with APIs, JSON, developer tools and automation platforms such as n8n, Make, Zapier, UiPath or similar You have practical experience using or integrating LLMs such as OpenAI, Claude ...

Backend Engineer

Location
Greater London, England, United Kingdom
work. About You Strong PHP and Laravel experience, with solid SQL, MySQL preferred, and a real understanding of optimisation and indexing. REST/JSON API development experience, and comfortable working with Redis alongside MySQL. AWS experience, particularly API Gateway, ECS and containers, plus Docker and Docker Compose. Confident within ...

Cyber Threat Intelligence Principal

Location
Greater London, England, United Kingdom
cyber security (CISSP, CEH, CISM, CompTIA Security+, or other certification preferred) Working fluency in Python/R, SQL, flat files and complex data types (JSON, XML), APIs, and Excel — enough to specify and interpret analysis with Data/Analytics teams Ability to translate real-world cyber threat behavior into modeling ...

Senior Software Engineer II - Data Onboarding & Reporting

Location
Greater London, England, United Kingdom
like Apache Iceberg or Delta Lake. Advanced Data Modeling: Deep expertise in Medallion Architecture patterns, Star Schemas, and processing semi-structured financial data logs (JSON/Avro). Robust ETL/ELT Orchestration: Expert proficiency in data transformation engines (such as dbt) and scheduling tools (such as Airflow). Stream ...

Sales Engineer

Location
Greater London, England, United Kingdom
Data Warehousing, ESB/Messaging, DV). Understanding of BigData, NoSQL, in-memory, MPP environments is welcome. Technical skills include JDBC/ODBC, XML, JSON, REST APIs, Java development and versioncontrol systems. Good knowledge of software development and architectural patterns. Ability to travel up to 10% to domestic client sites. ...

Solutions Architect

Location
Greater London, England, United Kingdom
ability to manage multiple services* Enhanced technology knowledge of the Microsoft Office suite and Google Workspace applications* Familiarity with any of the following: SQL, JSON, REST, or Python is a plus* Demonstrated ability to curate and maintain customer-first relationships Travel Requirements and Working Conditions* Willingness to travel ...

Professional Services Consultant (German speaker)

Location
Greater London, England, United Kingdom
teamwork, and time management skills. Desired Skills Working knowledge of Nexthink and its products. ITIL v4 knowledge. Experience in scripting and integration concepts (Python, JSON, PowerShell, REST API, LDAP, SSO, BASH). Experience in data analytics and visualization tools (SQL, Power BI, Tableau, etc.). Previous enterprise operations experience plus ...

Front-end Web Developer (Mid‐Level)

Location
Greater London, England, United Kingdom
React and Next.js. Able to take Figma designs and turn them into accurate, responsive website pages. Working knowledge of REST APIs or GraphQL, JSON, HTTP requests, authentication and error responses. Experience with server‐side or serverless development is beneficial. Familiar with GA4 and Google Tag Manager (GTM), including event tracking ...

Senior Platform Architect

Location
Greater London, England, United Kingdom
generative AI solutions, prompt engineering, Retrieval‐Augmented Generation (RAG) frameworks, and Agentic AI reasoning systems. Modern API & Integration Proficiency: Advanced expertise with RESTful APIs, JSON implementations, web services, database design, data modeling, and Model Context Protocol (MCP) configurations. Infrastructure & Security Cloud Ecosystems & iPaaS: Deep familiarity with cloud environments (AWS, Azure ...

Lead AI Engineer – Frontend & Cloud Architecture

Hiring Organisation
Pinnatum Consultancy Limited
Location
London, United Kingdom
Employment Type
Permanent
Salary
£52000 - £60000/annum allowances, bonuses and pension con
architecture. DevOps & IaC Terraform, Docker, Kubernetes (K8s), GitHub Actions, CI/CD automated quality gates (SonarQube). Data & Validation Zod schema validation, REST APIs, JSON data-intensive workflows. ...

Senior SailPoint IdentityIQ Workflow Engineer Remote UKbaseed

Hiring Organisation
Accion Labs UK Ltd
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP 500 Daily
AttributeRequest and ProvisioningProject . Strong understanding of access requests, provisioning and life cycle workflows. Experience supporting customised IIQ solutions in production. REST API/JSON integration experience. Desirable ServiceNow-SailPoint integration experience. Joiner/Mover/Leaver, birthright access and role-based provisioning. Exposure to Active Directory, Entra ID/ ...

Java Developer – Market Connectivity

Location
Greater London, England, United Kingdom
integrating and developing with TransFICC’s Connectivity Platform. Experience with electronic market protocols: FIX (4.x/5.x) 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 ...

Network Engineer

Location
Greater London, England, United Kingdom
OSPF Strong Knowledge of NAT, route maps/ACLs, and routing policies Strong knowledge of modern configuration management tools (Ansible, Jinja, JSON) Strong knowledge and experience developing in Python Proficient with GIT for software collaboration and version control 3+ years' experience hands on support and troubleshooting of production networks 3+ ...

Business Analyst

Location
Greater London, England, United Kingdom
part of a cross-functional team.**It would also be beneficial if you have:*** Experience with CRM platforms, particularly Pega.* An understanding of APIs, JSON, XML, system integrations and enterprise applications.* Awareness of the Software Development Life Cycle.* Business Analysis, Agile or Pega certifications.This is an excellent opportunity ...

Technical Product Manager

Hiring Organisation
Harris Hill Charity Recruitment Specialists
Location
London, United Kingdom
Employment Type
Permanent
Salary
GBP Annual
Experience designing and refining test cases, ideally using tools such as Jira and Postman . A good understanding of HTTP/HTTPS, APIs and JSON/XML . Digital experience across e-commerce integrations, Android applications, UX/UI and customer journeys . Experience managing external developers, technology partners ...

Full Stack Web Developer (Placement)

Location
Ealing, England, United Kingdom
. About You You are currently studying a computing/IT related degree and eligible for a placement year. You have knowledge of HTTP, JSON, REST, and Git. You are curious, humble, willing to learn, and communicate clearly. Success Metrics (what good looks like) Complete 1–2 scoped tickets ...

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 ...