22 of 22 JSON Jobs in Central London

Interface Developer

Hiring Organisation
Coforge
Location
City of London, London, United Kingdom
with IBM MQ (configuration, troubleshooting, performance tuning) Strong experience building microservices and RESTful APIs Knowledge of message formats and data transformation (XML, XSD, XSLT, JSON) Experience with SQL databases and ORM frameworks Familiarity with CI/CD pipelines (e.g., TeamCity, Git-based workflows) Comfortable working in Linux environments (bash ...

Senior Technical Lead

Hiring Organisation
Nextech Group Limited
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£90,000
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 ...

Integration Developer

Hiring Organisation
Southern Housing
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£50,000
using Boomi, Azure Integration Services, or similar platforms. Strong understanding of integration patterns, web services, and API-based architecture. Working knowledge of SQL, XML, JSON, JavaScript, Python, FTP, and data integration concepts. Experience or working knowledge of Microsoft Fabric, Logic Apps, Azure Functions, and CRM platforms such as Microsoft Dynamics. ...

Integration Architect

Hiring Organisation
INTEC SELECT LIMITED
Location
City of London, London, England, United Kingdom
Employment Type
Full-Time
Salary
£80,000 - £90,000 per annum
solutions. Expertise in REST APIs, GraphQL, Azure Service Bus, Logic Apps, Event Grid, and file-based integrations. Strong understanding of data modelling, JSON, XML, and OData. Experience creating architecture diagrams, data flow maps, and technical documentation. Excellent communication skills with the ability to engage both technical and non-technical stakeholders. ...

ServiceNow Developer

Hiring Organisation
CBSbutler Holdings Limited trading as CBSbutler
Location
Soho, London, Oxford Circus, United Kingdom
Employment Type
Contract
Contract Rate
£60 - £65/hour
5+ years' experience developing solutions on the ServiceNow platform Strong hands-on Service Portal development experience Excellent knowledge of: HTML CSS JavaScript AngularJS Bootstrap JSON REST/SOAP APIs HTTP protocols Experience developing ServiceNow integrations Strong understanding of ServiceNow core platform architecture Experience working within Agile delivery environments Excellent problem ...

Flow X Process Engineer

Hiring Organisation
ARM
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £700/day Inside IR35
programming skills - Java, JavaScript, Python, Groovy - Experience in BPMN development - Good understanding of API testing - REST and SOAP or knowledge of integration protocols (REST - JSON, SOAP - XML) - Experience working with relational databases (Oracle DB, PostgreSQL) - Deep consulting/client-facing experience Disclaimer: This vacancy is being advertised by either Advanced ...

Integration Architect

Hiring Organisation
Halian Technology Limited
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
Up to £600 per day
/v13 WebSphere MQ v9.0 Oracle 19 (SQL, PL/SQL, Database design) Messaging & Integration Kafka, HP NonStop, SWIFT connectivity Message formats: MRM, XML, JSON Programming At least one of: C, C++, SQL, Linux scripting Essential Skills & Experience Proven end-to-end software development lifecycle experience Strong analytical, design ...

Senior Data Scientist

Hiring Organisation
Depixen
Location
City of London, London, United Kingdom
Computer Science, AI, Data Science, Machine Learning, NLP, Semantic Web, Knowledge Graphs, or a related field. Experience with RDF, OWL, SPARQL, SHACL, SKOS, JSON-LD, schema.org, ontologies, taxonomies, or Linked Data. Experience with graph databases or triple stores such as GraphDB, Stardog, Neo4j, Amazon Neptune, or Blazegraph. Experience with embeddings ...

Business Systems Analyst

Hiring Organisation
Hays Technology
Location
City of London, London, United Kingdom
Employment Type
Contract
Solid technical expertise in APIs, integrations, data mapping and cloud/data-intensive systems Hands-on data skills across SQL/PLSQL, MongoDB, DynamoDB, JSON, CSV, Oracle, Excel and data transformations Experience designing HLDs, data flows, sequence diagrams and source-to-target mappings Proficient with tools such as JIRA, Confluence ...

CyberArk & SOx Consultant/ Fully Remote/ 6 Month Contract

Hiring Organisation
Cloud Bridge Tech Recruitment
Location
City of London, London, United Kingdom
controlled or audit-regulated environments Experience reviewing privileged access across: Oracle Solaris (hardware & OS, including patching) Linux operating systems Oracle databases PL/SQL JSON/XML Strong analytical and investigative mindset High attention to detail and documentation accuracy Ability to interpret release notes, change records, and technical documentation Excellent ...

Solutions Architect, Legal Technology

Hiring Organisation
Brimstone Consulting
Location
City of London, London, United Kingdom
Employment Type
Permanent
solutions meet security, compliance, and governance requirements Contribute to solution scoping, costing, and technical decision-making Skills & Experience Strong experience with API integrations (REST, JSON, OAuth, event-driven architecture) Background in cloud ecosystems (e.g. Microsoft 365, Azure or similar) Experience with workflow automation tools (e.g. Power Automate, Logic Apps ...

Professional Services Consultant

Hiring Organisation
LexisNexis Risk Solutions
Location
City of London, London, United Kingdom
meeting timescale requirements Requirements: Experience of implementing & configuring bespoke customer SaaS products Demonstrate knowledge of using REST API for integrating SaaS platforms, familiar with JSON, XML & Webhooks Have financial Crime knowledge/experience as an analyst, investigator or similar in at least one of the below areas; Application Fraud, Transaction ...

Software Engineer - Data, Lakehouse and AI Data Platform Engineer - Vice President - London

Hiring Organisation
Jobleads-UK
Location
City Of London, England, United Kingdom
collaborative engineering environment. Experience working with distributed data processing frameworks such as Apache Spark . Working knowledge of common data formats such as JSON , Avro and Parquet . Technology Environment The role will involve working with a modern and evolving data stack. Candidates are not expected to have deep expertise ...

Senior Sales Engineer

Hiring Organisation
Vixio
Location
City of London, London, United Kingdom
authentication schemes (OAuth, API keys, mTLS), explain webhook patterns. Know the difference between synchronous and asynchronous integrations. Data Architecture: Understand ETL, data lakes, warehouses, JSON/XML payloads, and how data moves between systems. Can scope data volume and throughput requirements. Compliance Infrastructure: Familiar with GRC tool workflows (task management ...

iOS Developer, Inisde IR35, Contract

Hiring Organisation
Hydrogen Group
Location
City, London, United Kingdom
Employment Type
Contract
Contract Rate
GBP 500 - 550 Daily
automation testing using XCUITest. Experience with asynchronous programming, including Swift Concurrency (async/await) and Combine. Experience integrating RESTful APIs and working with JSON data. Experience with Continuous Integration and Continuous Deployment (CI/CD) pipelines; experience with CircleCI would be beneficial. Experience with dependency management tools such as Swift ...

Solutions Architect – Legal Technology

Hiring Organisation
Jobleads-UK
Location
City Of London, England, United Kingdom
solutions meet security, compliance, and governance requirements. Contribute to solution scoping, costing, and technical decision-making. Skills & Experience Strong experience with API integrations (REST, JSON, OAuth, event-driven architecture). Background in cloud ecosystems (e.g. Microsoft 365, Azure or similar). Experience with workflow automation tools (e.g. Power Automate, Logic ...

Data Architect

Hiring Organisation
UST
Location
City of London, London, United Kingdom
related data platforms (e.g. Snowflake) Strong experience with Apache Airflow and DAG-based orchestration Experience designing configuration-driven frameworks: Using YAML or JSON Experience building automated testing for data pipelines: Functional equivalence testing Regression testing Proven technical leadership: Ability to influence without authority Align senior engineers across data ...

Technical GEO/AEO Manager

Hiring Organisation
LangSync
Location
City of London, London, United Kingdom
Responsibilities Strategic Execution: Turn "Share of Model" data into technical moves that immediately improve a client's AI citation volume. Knowledge Architecture: Deploy advanced JSON-LD and Schema frameworks that define entity relationships for AI models. LLM Auditing: Test how different models (OpenAI, Anthropic, Google) "perceive" our clients and engineer ...

Junior Implementation Specialist | Mobile E-Commerce

Hiring Organisation
Venn Apps
Location
City of London, London, United Kingdom
email Collaborate with project teams to implement asset updates and changes Prepare new client applications for launch Perform QA testing and troubleshoot issues Utilise JSON and text editing tools to update projects Why Join Us? Work with cutting-edge mobile app technology High levels of responsibility and ownership Collaborate cross ...

WebMethods Developer

Hiring Organisation
Experis
Location
City of London, London, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
£600 - £650 per day
Optimize. Designing and implementing integration architectures aligned with enterprise patterns, SOA, API management, and microservices. Managing B2B protocols including EDI, AS2, FTP, HTTPS, XML, JSON, REST, and SOAP. Optimising system performance, capacity planning, and ensuring high availability. Collaborating with stakeholders, providing technical leadership, and supporting DevOps practices with CI/… Integration Server and API Gateway. Proven experience with Axway API Gateway and enterprise integration patterns. Hands-on knowledge of EDI, B2B protocols, XML, JSON, REST, and SOAP. Strong understanding of performance tuning, high-availability design, and cloud deployment. Excellent communication and stakeholder management skills. Must hold or be eligible ...

Scala Developer (Remote)

Hiring Organisation
Stealth iT Consulting
Location
City of London, London, United Kingdom
Solid understanding of functional programming concepts and idiomatic Scala (e.g., immutability, monads, cats/Scalaz familiarity advantageous). Experience designing and consuming REST APIs, JSON validation/serialization (Play JSON, Circe). Experience with relational databases (PostgreSQL) and/or NoSQL (MongoDB), including schema design and query optimisation. Proven experience ...

Scala Developer - Remote Contract - £450 Outside IR35

Hiring Organisation
Stealth iT Consulting
Location
Central London / West End, London, United Kingdom
functional programming concepts and idiomatic Scala (immutability, monads; familiarity with Cats or Scalaz is a plus). Experience designing and consuming REST APIs , including JSON validation/serialization (Play JSON, Circe). Proficiency with relational databases (PostgreSQL) and/or NoSQL (MongoDB), including schema design and query optimization. Proven experience ...