JSON Jobs in London

1 to 25 of 76 JSON Jobs in London

Integration Development & Support Engineer

London, United Kingdom
Hybrid / WFH Options
Informed Recruitment
Enterprise and COTS-based. Strong scripting/programming skills - SQL essential, others such as Python, Java/JavaScript, C# very welcome. API & Web Services - REST/RESTFul, SOAP, XML, JSON Cloud Platform proficiency - Knowing how to deploy, manage, and integrate services across cloud platforms is vital in either Azure, AWS, and/or more modern and agile iPaaS solutions such More ❯
Employment Type: Permanent
Salary: £50000 - £65000/annum
Posted:

Integration Development & Support Engineer

London, South East, England, United Kingdom
Hybrid / WFH Options
Informed Recruitment LTD
Enterprise and COTS-based. Strong scripting/programming skills - SQL essential, others such as Python, Java/JavaScript, C# very welcome. API & Web Services - REST/RESTFul, SOAP, XML, JSON Cloud Platform proficiency - Knowing how to deploy, manage, and integrate services across cloud platforms is vital in either Azure, AWS, and/or more modern and agile iPaaS solutions such More ❯
Employment Type: Full-Time
Salary: £50,000 - £65,000 per annum
Posted:

C# Developer

London, South East, England, United Kingdom
Hybrid / WFH Options
FDM Group
retaining and Drift monitoring in Azure with knowledge of Microsoft Azure Strong understanding of object-oriented programming and familiarity with front-end technologies like HTML, CSS, React and JavaScript, JSON Strong command of SQL for database management, query optimisation and No SQL databases Experience in Python Programming and data visualisation using PowerBI or similar tools Exposure to applying ML algorithms More ❯
Employment Type: Contractor
Rate: £55,000 - £75,000 per annum
Posted:

Senior Java Developer

London, United Kingdom
Hybrid / WFH Options
Meritus
mode. Contribute to automated testing (C#) and infrastructure improvements (Docker, Ansible, Python, Linux). Required Skills: Proven experience with Java, Spring, Maven, Git, JUnit, and Web APIs (REST/JSON, XML/SOAP). Active SC clearance is essential. Strong background in complex or high-pressure software development environments. Ability to collaborate effectively within a diverse technical team and deliver More ❯
Employment Type: Contract
Rate: £550 - £650/day
Posted:

Senior Java Developer

London, South East, England, United Kingdom
Hybrid / WFH Options
Meritus Talent
mode. Contribute to automated testing (C#) and infrastructure improvements (Docker, Ansible, Python, Linux). Required Skills: Proven experience with Java, Spring, Maven, Git, JUnit, and Web APIs (REST/JSON, XML/SOAP). Active SC clearance is essential. Strong background in complex or high-pressure software development environments. Ability to collaborate effectively within a diverse technical team and deliver More ❯
Employment Type: Contractor
Rate: £550 - £650 per day
Posted:

Guidewire Developer

London, United Kingdom
Stackstudio Digital Ltd
support new opportunities. What are we looking for? 3+ years software development experience, including: JAVA 5/J2EE, ReactJS, Web Services, XML, SQL, Gradle, Spring, Hibernate, Castor, REST/JSON and Enterprise Messaging System. Using configuration management tools like Git, Tortoise SVN, Source Tree, Perforce, Plastic and ticket management tools like Azure DevOps, JIRA, HPQC. Knowledge of the AGILE methodology More ❯
Employment Type: Contract
Posted:

Javascript Developer

City of London, London, United Kingdom
Hybrid / WFH Options
Experis
. Hands-on experience with front-end frameworks such as React, Angular, or Vue.js . Solid understanding of HTML5, CSS3, and responsive design principles . Experience with RESTful APIs , JSON, and asynchronous programming. Familiarity with version control systems (Git) . Ability to write unit and integration tests (e.g., Jest, Mocha, Cypress). Strong problem-solving skills and attention to detail. More ❯
Posted:

Javascript Developer

London Area, United Kingdom
Hybrid / WFH Options
Experis
. Hands-on experience with front-end frameworks such as React, Angular, or Vue.js . Solid understanding of HTML5, CSS3, and responsive design principles . Experience with RESTful APIs , JSON, and asynchronous programming. Familiarity with version control systems (Git) . Ability to write unit and integration tests (e.g., Jest, Mocha, Cypress). Strong problem-solving skills and attention to detail. More ❯
Posted:

SSIS Developer

London, United Kingdom
Experis
knowledge of T-SQL (queries, stored procedures, functions, indexing, performance tuning). Experience working with relational databases (SQL Server, Oracle, etc.) and flat file/CSV/XML/JSON data sources. Strong understanding of ETL design patterns, data warehousing concepts. Experience with SQL Server Agent or other scheduling tools. Strong troubleshooting and problem-solving skills. Preferred Skills Familiarity with More ❯
Employment Type: Contract
Rate: £430 - £450/day
Posted:

Javascript Developer

london, south east england, united kingdom
Hybrid / WFH Options
Experis
. Hands-on experience with front-end frameworks such as React, Angular, or Vue.js . Solid understanding of HTML5, CSS3, and responsive design principles . Experience with RESTful APIs , JSON, and asynchronous programming. Familiarity with version control systems (Git) . Ability to write unit and integration tests (e.g., Jest, Mocha, Cypress). Strong problem-solving skills and attention to detail. More ❯
Posted:

Javascript Developer

london (city of london), south east england, united kingdom
Hybrid / WFH Options
Experis
. Hands-on experience with front-end frameworks such as React, Angular, or Vue.js . Solid understanding of HTML5, CSS3, and responsive design principles . Experience with RESTful APIs , JSON, and asynchronous programming. Familiarity with version control systems (Git) . Ability to write unit and integration tests (e.g., Jest, Mocha, Cypress). Strong problem-solving skills and attention to detail. More ❯
Posted:

PHP Developer

London, United Kingdom
Akkodis
with core business systems and delivering high-quality, scalable solutions. Key Responisibilites: Develop, maintain, and enhance PHP applications across web and enterprise environments Build and consume APIs (REST/JSON, SOAP) for integration's with third-party and internal systems Collaborate with cross-functional teams including product owners, business analysts, and testers Optimise application performance, scalability, and security Deliver clean More ❯
Employment Type: Contract
Rate: £400 - £450/day
Posted:

Full Stack Web Developer .Net Core

London, South East, England, United Kingdom
Hybrid / WFH Options
Dotwatcher
management tools like Git. JavaScript, TypeScript, jQuery, SCSS/CSS, HTML. Understanding of SQL language, stored procedure, Entity Framework Familiarity with RESTful APIs and modern authorisation mechanisms such as JSON Web Token. Security understanding. Strong problem-solving skills and attention to detail. Motivated, willing to learn/improve/optimise code and perseverant. Good communication skills and ability to speak More ❯
Employment Type: Full-Time
Salary: Salary negotiable
Posted:

Microsoft Dynamics 365 CE Solution Architect

London, United Kingdom
Hybrid / WFH Options
Cognizant
custom report experience through SQL Server Reporting Services (SSRS) and FetchXML .NET Framework Version 4.5 or above including strong WCF\ Web API experience Knowledge of Web development, HTML, CSS, JSON, XML, Javascript and SQL C# and OOPS concepts Good to have experience and knowledge of Microsoft Azure Power Apps and Portal Field Services Customer Insight What education and certification credentials More ❯
Employment Type: Permanent, Work From Home
Posted:

Mainframe Developer

London, United Kingdom
Stackstudio Digital Ltd
and DB2 Rest with extensive knowledge of CICS Web Services. Development experience using FileAid, Xpeditor, IBM Explorer for z/OS, and Visual Studio. Proficient with SOAP, WSDL, and JSON; comprehensive understanding of SOA and RESTful APIs. Experience with code repositories, bug tracking tools, and wikis (e.g., GitLab, Endevor, JIRA, Confluence). Knowledge of security integration patterns such as Basic More ❯
Employment Type: Contract
Rate: From £400 to £420 per day
Posted:

Java Developer - Active SC

London, United Kingdom
Hays
core AWS services (EC2, S3, Lambda, IAM, etc.) Kafka/Messaging Systems: Expertise in building event-driven architectures SQL: Strong experience with relational databases and query optimization REST/JSON APIs: Designing, developing, and consuming scalable APIs Docker: Proficiency in containerizing applications for local and cloud environments Communication: Excellent communication skills to convey complex ideas effectivel Nice to have: JavaScript More ❯
Employment Type: Contract
Rate: £600.0 - £640.0 per day + up to £640 pd (Inside IR35)
Posted:

Java Developer - Active SC

London, South East, England, United Kingdom
Hays Specialist Recruitment Limited
core AWS services (EC2, S3, Lambda, IAM, etc.) Kafka/Messaging Systems: Expertise in building event-driven architectures SQL: Strong experience with relational databases and query optimization REST/JSON APIs: Designing, developing, and consuming scalable APIs Docker: Proficiency in containerizing applications for local and cloud environments Communication: Excellent communication skills to convey complex ideas effectivel Nice to have: JavaScript More ❯
Employment Type: Contractor
Rate: £600 - £640 per day
Posted:

Power Platform Developer - Dynamics F&O

City of London, London, England, United Kingdom
INTEC SELECT LIMITED
experience integrating and extending D365 F&O , including basic X++ development Proficiency in Azure Functions , Azure AI models , and other Azure services Strong command of SQL , Power Fx , JavaScript , JSON , and C# Familiarity with tools such as Visual Studio , Git , Azure DevOps , or Monday Dev Qualifications Degree in Computer Science, Information Technology, or related field Certifications such as PL More ❯
Employment Type: Full-Time
Salary: £65,000 - £70,000 per annum
Posted:

Endur Technical Architect

London, United Kingdom
Harvey Nash
tools (Docker, OpenShift, Kubernetes); web UI development (React). Must understand Infrastructure as a Code (Terraform) Integration - Expert experience with integration techniques, including real-time messaging (AMQ), API design (JSON, Swagger), and batch techniques. Infrastructure and Operational - Familiarity with DevOps practices, including CI/CD, automated deployments via Ansible, GIT Repositories. cloud infrastructure offerings, Grid Computing elasticity, and cost optimization. More ❯
Employment Type: Contract
Posted:

Endur Technical Architect

London, South East, England, United Kingdom
Harvey Nash
tools (Docker, OpenShift, Kubernetes); web UI development (React). Must understand Infrastructure as a Code (Terraform) Integration - Expert experience with integration techniques, including real-time messaging (AMQ), API design (JSON, Swagger), and batch techniques. Infrastructure and Operational - Familiarity with DevOps practices, including CI/CD, automated deployments via Ansible, GIT Repositories. cloud infrastructure offerings, Grid Computing elasticity, and cost optimization. More ❯
Employment Type: Contractor
Rate: Salary negotiable
Posted:

Power Platform Developer

London, United Kingdom
Hybrid / WFH Options
Ashdown Group
including access control and data protection. Troubleshoot issues and work independently to research and resolve problems. Contribute to projects involving Microsoft Azure, Azure AD, Automation, PowerShell, SQL, Web Services, JSON, and coding languages such as Python or C# (advantageous but not essential). Skills and Experience Practical experience with Power Platform. Problem-solving skills and ability to work independently. Knowledge More ❯
Employment Type: Permanent
Salary: £30,000
Posted:

Snr. Technical Support Engineer, Prisma Cloud - Focused Services (Security Clearance Required)

Tottenham, Greater London, UK
Palo Alto Networks
SIEM tools, vulnerability management, malware analysis, and firewall configurations Ability to communicate complex technical solutions to a wide range of audiences, both technical and non-technical Skilled in Python, JSON, YAML, Bash, or other relevant scripting languages 3–5 years of experience in Technical Support, or similar hands-on roles Bachelor’s/Master’s degree in a technical field More ❯
Posted:

Contract Software Engineer - eDV Cleared

London, South East, England, United Kingdom
Searchability NS&D
agile delivery. Excellent problem-solving skills and a proactive, team-oriented approach. Confident client-facing communication skills. Desirable Skills & Experience Experience with Apache NiFi and Node.js . Familiarity with JSON, XML, XSD, and XSLT . Knowledge of Jenkins, Maven, BitBucket, and Jira . Exposure to AWS and cloud technologies. Experience working within agile methodologies (Scrum, Kanban). To Apply: Send More ❯
Employment Type: Contractor
Rate: £600 - £800 per day
Posted:

Weather Data Engineer

london, south east england, united kingdom
Balyasny Asset Management L.P
time-series data, temporal queries, and geospatial data concepts. Experience with Linux platforms and related scripting. Experience working with weather, climate, or environmental datasets (e.g., GRIB, NetCDF, HDF5, CSV, JSON). Familiarity with weather data sources and formats (e.g., NOAA, ECMWF, GFS, satellite, radar, sensor networks). Beneficial Proficient in one or more OO programming languages (e.g., Java, C#). More ❯
Posted:

Axway API Developer

City of London, London, United Kingdom
Hybrid / WFH Options
Randstad Digital
a solid foundation in: Axway's core products: Policy Studio, API Gateway, and API Manager. Key communication protocols: SFTP, HTTPS, SSL/TLS, and oAuth. Data and messaging formats: JSON, XML, SOAP, and REST. Linux scripting and environments. Using DevOps toolsets to automate testing and deployments. 6 months contract Inside IR35 - Remote Working - ?? £500 to £650 a day If you More ❯
Employment Type: Contract, Work From Home
Rate: £500 - £650 per day
Posted:
JSON
London
10th Percentile
£50,000
25th Percentile
£55,625
Median
£70,000
75th Percentile
£80,375
90th Percentile
£109,500