1 to 25 of 49 JSON Jobs in London

Technical Consultant - C# and VB.NET - London, UK

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
technologies. Knowledge of web technologies including ASP.NET, HTML5, CSS3, JavaScript, and modern application integration practices. Experience working with data interchange formats such as XML, JSON, AJAX, and REST‐based integrations. Strong understanding of Software Development Life Cycle (SDLC), application architecture, design patterns, and coding best practices. Experience leading development activities ...

Senior Java Developer

Hiring Organisation
MW recruitment
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£90,000 - £125,000 per annum
Markets knowledge, ideally within Clearing or Prime Brokerage. Desirable Previous team leadership or mentoring experience Knowledge of Groovy, FIX/FIXML, FpML, REST APIs, JSON or messaging technologies Experience developing client portals and reporting platforms Experience working with distributed or offshore development teams. Technical Environment You'll have exposure ...

Senior Developer - Global Regulatory & Controls Technology

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
streaming technologies such as Kafka, RabbitMQ or JMS Strong database experience, including SQL and ideally technologies such as Oracle, Redis or Elasticsearch Experience with JSON, XML, Avro or similar data formats Knowledge of automated testing frameworks and Test-Driven Development (TDD) Excellent analytical and problem-solving skills Strong communication ...

Senior Backend Engineer | London, UK | JPMC

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
with a focus on scalability, reliability, and maintainability. Familiarity with Git or equivalent version control systems, API testing tools, and configuration formats such as JSON, YAML, or XML. Preferred Experience Banking or financial services domain experience, preferably within lending, loans, or credit platforms. Experience working in highly regulated environments with ...

Senior Integration Developer (IBM ACE/IIB) - Banking

Hiring Organisation
Salt
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP 500 - 600 Daily
/SQL skills with Oracle databases. Experience working with Oracle database design. Good knowledge of Linux (RHEL) environments. Experience with XML and JSON message formats. Strong understanding of enterprise integration and messaging architecture. Experience across the full Software Development Lifecycle (SDLC). Ability to produce high-quality technical documentation ...

Mulesoft Developers 2

Hiring Organisation
CBSbutler Holdings Limited trading as CBSbutler
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£600 - £675/day Inside IR35
Salesforce. Strong MuleSoft Anypoint Platform experience, including designing APIs, creating Mule flows, and managing MuleSoft runtime environments. Familiarity with REST/SOAP APIs, JSON, XML, and data transformation techniques. Experience with Salesforce integration patterns and best practices. Excellent problem-solving skills and attention to detail. Strong communication and teamwork skills. ...

Senior Oracle Integration Consultant(DV Cleared)-UK(Remote/Hybrid)

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Oracle PaaS (Autonomous Database, VBCS, API Platform, Integration Cloud) and IaaS (Compute, Storage, Networking) concepts. Strong knowledge of REST/SOAP web services, XML, JSON, XSLT, and API design principles. Experience with Oracle Cloud Adapters, FBDI/HDL data loading templates, and BI Publisher reporting. Familiarity with security protocols (OAuth ...

Senior C# / .NET Developer | Risk & Securities Lending

Hiring Organisation
Randstad Technologies Recruitment
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £550/day
.NET (including .NET Core). Exceptional Object-Oriented Programming (OOP) skills and architectural design principles. Proven track record in designing and implementing REST/JSON APIs. Solid SQL database experience (e.g., SQL Server). Strong grasp of application performance, scalability, unit/integration testing, and CI/CD pipelines. Essential ...

MuleSoft Developer

Hiring Organisation
CBSbutler Holdings Limited trading as CBSbutler
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£600 - £675/day Inside remote working
Mule flows and managing Mule runtime environments. Experience integrating Salesforce with enterprise applications. Solid Java development skills. Strong understanding of REST and SOAP APIs, JSON, XML and data transformation. Experience implementing secure integration solutions using OAuth2, JWT, API gateways and encryption standards. Excellent analytical and problem-solving skills. Strong communication ...

Director, Application Development Manager

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
level proficiency in Java and frameworks like Spring Boot for building microservices. Strong expertise with relational databases (Oracle) and data modelling (canonical data models, JSON). Deep experience with enterprise messaging platforms (Kafka, IBM MQ). Proven experience implementing AI/ML solutions (using Python or other frameworks) to solve ...

Java Developer

Hiring Organisation
17918
Location
London, United Kingdom
Rest, Hibernate, Docker, Terraform, GitHub, Jenkins, development and deployment in a cloud environment SQL TDD/BDD Azure APIM, RESTful interfaces (as JSON and XML over ReST), WSDL-based interfaces, node.js, Git, Azure DevOps tools, oracledb Linux Package and Benefits: Competitive salary, dependent on experience Flexible working/Work from ...

Senior Software Engineer (C++ network programming)

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
with extensive experience in software development.Strong knowledge of selected programming languages: C, C++Experience with low level networking communicationExperience in working with web socket and JSON frameworksExperience in working with TCP/IP and UDP multicast network protocolsKnowledge of GitLab or GitHub or other source control systemKnowledge of JiraKnowledge of Agile ...

Senior .NET Integration Engineer

Hiring Organisation
McCabe & Barton
Location
London, United Kingdom
Employment Type
Permanent
Salary
GBP 85,000 Annual
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 ...

Java Graduate Software Developer

Hiring Organisation
17918
Location
London, United Kingdom
current Java, Enterprise Java Beans Rest, Hibernate, Docker, Terraform, GitHub, Jenkins, development and deployment in a cloud environment SQL Azure APIM, RESTful interfaces (as JSON and XML over ReST), WSDL-based interfaces, node.js, Git, Azure DevOps tools, oracledb Linux Competitive salary, dependent on experience Flexible working/Work from home ...

Senior Oracle Technical Consultant – DV cleared

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Oracle PaaS (Autonomous Database, VBCS, API Platform, Integration Cloud) and IaaS (Compute, Storage, Networking) concepts. Strong knowledge of REST/SOAP web services, XML, JSON, XSLT, and API design principles. Experience with Oracle Cloud Adapters, FBDI/HDL data loading templates, and BI Publisher reporting. Familiarity with security protocols (OAuth ...

Integration Specialist - Active SC, Azure Integration & PaaS

Hiring Organisation
Hays Technology
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£400 - £465/day Up to £465pd (Inside IR35)
Experience migrating services from Azure IaaS to Azure PaaS. Knowledge of API-led, event-driven and messaging-based integration patterns. Experience with REST APIs, JSON, XML and secure integrations. Strong understanding of Azure networking, Entra ID, managed identities and Key Vault. Experience with Azure DevOps, CI/CD pipelines ...

Integration Specialist - Active SC, Azure Integration & PaaS

Hiring Organisation
Hays Specialist Recruitment Limited
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£400 - £465 per day
Experience migrating services from Azure IaaS to Azure PaaS. Knowledge of API-led, event-driven and messaging-based integration patterns. Experience with REST APIs, JSON, XML and secure integrations. Strong understanding of Azure networking, Entra ID, managed identities and Key Vault. Experience with Azure DevOps, CI/CD pipelines ...

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 ...

Senior Data Privacy & BigID Consultant

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Identity & Access Management basics (IAM, RBAC) Encryption, tokenization, data masking techniques Python/Bash scripting for automation and data profiling; REST API integration and JSON/XML handling QUALIFICATIONS 7+ years in data governance, privacy, or information security 4+ years in a client‐facing consulting or professional services role Proven ...

Senior Data Privacy & BigID Consultant

Hiring Organisation
Jobleads-UK
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 ...

Senior Bureau Messaging Integration Architect

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
delegated authority or Lloyd’s ecosystem platforms.* Experience with tools such as Azure Integration Services, MuleSoft, Boomi, IBM MQ, Kafka, REST/SOAP, XML, JSON, and managed file transfer solutions.* Knowledge of cloud and hybrid integration architecture.* TOGAF or similar architecture framework knowledge.* Degree in Computer Science, Information Technology, Engineering ...

Senior Azure Data Engineer

Hiring Organisation
Randstad Technologies Recruitment
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£400 - £450/day
Scripting & Automation: Strong scripting abilities in SQL, Python, and/or PowerShell. Data Formats: Experience working with structured and semi-structured data formats (CSV, JSON, XML, Parquet, MDF, BAK). Problem Solving: Exceptional troubleshooting, automation, and analytical capabilities. How to Apply Please include your most recent CV and a brief ...

Senior Azure Data Engineer

Hiring Organisation
Randstad Technologies
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£400 - £450 per day
Scripting & Automation: Strong scripting abilities in SQL, Python, and/or PowerShell. Data Formats: Experience working with structured and semi-structured data formats (CSV, JSON, XML, Parquet, MDF, BAK). Problem Solving: Exceptional troubleshooting, automation, and analytical capabilities. How to Apply Please include your most recent CV and a brief ...

Solutions Architect, Strategic Applications

Hiring Organisation
Jobleads-UK
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 ...

Cyber Security Consultant (Contract)

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
SCCM/Microsoft Configuration Manager, Ivanti DSM, ManageEngine Endpoint Central or comparable tooling. Advanced PowerShell scripting and automation experience. Experience using REST APIs and JSON-based configuration or deployment models. Experience creating, reviewing or migrating enterprise software packages. Knowledge of Windows Installer technology, application detection, dependencies, return codes, reboot handling ...