23 of 23 Remote/Hybrid JSON Jobs in London

Implementation Engineer

Hiring Organisation
Pyramid Consulting, Inc
Location
London Area, United Kingdom
enterprise environments. Experience building integrations with systems such as ERP, CRM, workflow engines. Familiarity with: Spring/Spring Boot REST APIs XML/JSON SQL & NoSQL databases Web application frameworks (JSP/Servlets, JSF, or modern front end is a plus) Tools & Platforms Version control (Git) Build tools (Maven/ ...

Senior Automation Test Engineer - ETRM / Trading Platforms

Hiring Organisation
Data Careers
Location
South East London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£90,000
with an ETRM platform with as many of the following as possible: Programming & Scripting: Python, Java, JavaScript, C++, Scriban Web Technologies: RESTful APIs, HTTP, JSON, HTML, CSS, Node.js Databases: SQL Server, MySQL, PostgreSQL, MongoDB Tools & Frameworks: Git, Docker, Jenkins, Kubernetes, Agile (Scrum & Kanban), JIRA, Pytest, Powershell Operating Systems: Linux, Windows ...

Java Full Stack Developer

Hiring Organisation
Syntax Consultancy Ltd
Location
Croydon, Greater London, United Kingdom
Employment Type
Permanent
Salary
£65000 - £75000/annum + Benefits + Bonus
Java 8/11 , Spring Boot, Spring Framework and Micro-services development experience. JavaScript, NodeJS, ReactJS preferred and REST API, PostgreSQL/NoSQL databases, JSON and XML. AWS Cloud environments including: ECS, EKS, API Gateway + Serverless. DevOps and CI/CD technologies , including hands-on experience of Jenkins, Docker ...

Full-Stack Software Developer

Hiring Organisation
Sanderson
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£520 per day
/17+) Deep Spring Boot & microservices experience Strong AWS skills (EC2, S3, Lambda, IAM) Kafka/event-driven systems SQL optimisation REST/JSON API design Docker proficiency Excellent communication skills Nice to Have JavaScript/React Aurora/RDS If you're proactive, outcomes-driven, and thrive in high ...

Senior Technical Integration Manager (Oracle Fusion Cloud)

Hiring Organisation
Circle Group
Location
London, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
£600 - £700 per day
oracle fusion cloud implementation Proven hands-on expertise designing and building integrations using OIC adapters, REST/SOAP APIs, XML, XSD, XSLT, and JSON, and file-based orchestrations Solid understanding of Fusion data models and experience interfacing with FBDI , HDL , and BICC artefacts Deep knowledge of Oracle Integration Cloud ...

Python/ AI Developer

Hiring Organisation
FDM Group
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£55,000 - £75,000 per annum
coding practices (Key Vault, input validation, encryption), RBAC, and API key/credential management. Data Handling & Storage: Skilled in structured/unstructured data (CSV, JSON, XML, PDF, DOCX); efficient data processing and storage using Python and Azure services. API Development: Experience building and consuming REST APIs with authentication and service ...

Python Developer

Hiring Organisation
microTECH Global LTD
Location
London, UK
Employment Type
Full-time
will have significant experience developing using these technologies. - Experience using Linux as a target development platform - Hands-on experience with technologies such as REST, JSON and docker - Exposure of commonly used test frameworks such as Pytest, Google Test Framework - Skilled with common front-end technologies such as HTML ...

Senior React Native Engineer - London Hybrid : £100-120k+

Hiring Organisation
Hunter Bond
Location
London, UK
Employment Type
Full-time
Bring 5+ years' experience delivering production mobile apps for iOS and Android. Strong expertise with iOS/Android SDKs, remote data handling (REST/JSON) and third-party integrations. Solid understanding of mobile architecture, trends and best practices across the entire development lifecycle. Clear, confident communication skills — written, verbal ...

Oracle Cloud Integrations Specialist

Hiring Organisation
SUMMER-BROWNING ASSOCIATES LIMITED
Location
London, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
Up to £0.00 per day + Excellent Day Rates
Oracle ERP and HCM through Oracle Integration Cloud Expert skills in developing and unit testing integration components and web services (SOAP/REST/JSON Payload) using OIC, Postman, and Curl Solid experience with PaaS Cloud system interfaces To apply, please submit your latest CV for review. ...

Technical Delivery Manager

Hiring Organisation
Adecco
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£550 - £600 per day
financial crime technology delivery. Hands-on experience with Actimize SAM-10 Cloud and cloud platforms (AWS preferred). Strong technical background (C#, SQL, APIs, JSON/XML) and knowledge of modern data architectures. Excellent communication, stakeholder management, and team leadership skills. Candidates will ideally show evidence of the above ...

Full Stack Developer – AI & Automation (UK Remote)

Hiring Organisation
Stanley House Consulting
Location
City of London, London, United Kingdom
Storage) AI/ML: OpenAI, Anthropic Claude, LangChain, Vector Databases Deployment: Vercel, GCP Must-Have Skills Core Languages: TypeScript, JavaScript, Python Databases: MySQL, PostgreSQL, JSON Frameworks: Next.js & React, incl. App Router (Server/Client Components, Server Actions) Proficiency in Supabase (database design, RLS, auth flows) Third-party API App Integration ...

iOS Developer

Hiring Organisation
YEO Messaging
Location
London, UK
Employment Type
Full-time
SwiftUI Knowledge of mobile app architecture, MVC/MVVM, and design patterns Familiarity with version control systems such as Git Understanding of API integration, JSON, and third-party libraries Experience writing unit and UI tests to ensure robustness Experience with creating SDK's for deployment across multiple applications Strong problem ...

Technical Business Analyst

Hiring Organisation
Marshall Wolfe
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£50,000 - £60,000 per annum
Understanding of Large Language Models (LLMs) and prompt-engineering principles. Highly organised, proactive, and able to manage multiple projects simultaneously. Preferred experience: Familiarity with JSON, XML, or other structured data formats. Experience with rules engines, decision management systems, or low-code/BPM tools. Understanding of knowledge representation, logic ...

Data Modeler

Hiring Organisation
Harnham
Location
London Area, United Kingdom
ensure data models align with business and technical goals. Leveraging tools such as ERWin, Sparx, RSA, Visio , and handling semi-structured data formats (JSON, XML, Parquet). SKILLS AND EXPERIENCE The successful Data Modeller will have the following skills and experience: Proven experience in data modelling within consulting or financial ...

Implementation Manager (Fintech)

Hiring Organisation
X4 Technology
Location
London Area, United Kingdom
Requirements include: 5+ years’ experience in implementation, delivery or client onboarding within payments or fintech Strong knowledge of payment systems, APIs and integrations (Postman, JSON, REST, etc.) Proven project management skills with excellent organisation and communication A consultative mindset, able to translate complex technical concepts into business value Ability ...

Full Stack Engineer (Front End & Application experience) React + Typescript

Hiring Organisation
Deltabase
Location
South London, UK
Employment Type
Full-time
interest in real-time collaboration and shared state tools such as Liveblocks. · Familiarity with authentication and authorisation patterns, such as: · OAuth (Open Authorisation) · JSON Web Tokens (JWT) · Role-Based Access Control (RBAC) · Attribute-Based Access Control (ABAC) · Experience contributing to backend services or API design in Node.js or Python. What ...

Full Stack Engineer (Next.js

Hiring Organisation
Angry Swan Labs
Location
London, UK
Employment Type
Full-time
between the web session and external connected clients. Functionality: Implement a secure pairing flow (e.g., code-based) that facilitates the bi-directional sync of JSON state data between the web app and remote sessions. D. Interactive 2D Overlay Requirement: A manipulation layer for defining regions of interest. Functionality: Implementation ...

Product Manager / Insurance Platform Product Owner

Hiring Organisation
AWD Online
Location
Central London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£60,000
communicate effectively with both technical and non-technical stakeholders DESIRABLE Working knowledge of Power BI or similar reporting tools Experience working with APIs, JSON, Excel-based schemas or structured data formats An interest in LLMs and Agentic AI within insurance or operational environments HOW TO APPLY To be considered ...

Product Manager / Insurance Platform Product Owner

Hiring Organisation
AWD online
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£60,000 per annum
communicate effectively with both technical and non-technical stakeholders DESIRABLE Working knowledge of Power BI or similar reporting tools Experience working with APIs, JSON, Excel-based schemas or structured data formats An interest in LLMs and Agentic AI within insurance or operational environments HOW TO APPLY To be considered ...

Oracle Fusion Cloud Sr. Technical Integration Manager

Hiring Organisation
Indotronix Avani UK Ltd
Location
South West London, London, United Kingdom
Employment Type
Contract
problem-solving and analytical skills Proven hands-on expertise designing and building integrations using OIC adapters, REST/SOAP APIs, XML, XSD, XSLT, and JSON, and file-based orchestrations Experience securing integrations via OCI Vault, certificates, and OAuth2 token Top 3 essential criteria: Bachelors degree in computer science, Information Technology … Oracle Service Bus (OSB) Proven hands-on expertise designing and building integrations using OIC adapters, REST/SOAP APIs, XML, XSD, XSLT, and JSON, and file-based orchestrations. Experience securing integrations via OCI Vault, certificates, and OAuth2 tokens Solid understanding of Fusion data models and experience interfacing with FBDI ...

Scala Developer - Remote Contract - Immediate Start

Hiring Organisation
Stealth iT Consulting
Location
City of London, 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 ...

Scala Developer - Remote Contract - Immediate Start

Hiring Organisation
Stealth iT Consulting
Location
East London, 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 ...

Oracle Developer

Hiring Organisation
Invitise Ltd
Location
City of London, London, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
Up to £650 per day
builds and enhancements to current workstreams. Essential experience: Strong development background Oracle Integration Cloud Oracle Fusion Cloud Integration work with SOAP, REST, JSON OIC, Postman, Curl Oracle VBCS ERP and HCM integrations via OIC OAUTH, IAM, JWT GIT, XML, JSON, XSLT Desirable: Public cloud and security knowledge DevOps background Experience … processes Understanding of secure development practices Interested? Please apply below. Oracle Integration Cloud, OIC, Oracle Fusion, Oracle ERP, HCM, VBCS, OCI, Integrations, REST, SOAP, JSON, SC Cleared, Inside IR35. ...