15 of 15 JSON Jobs in the City of London

Implementation Engineer

Hiring Organisation
Pyramid Consulting, Inc
Location
City of London, London, 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/ ...

Java Specialist

Hiring Organisation
Pyramid Consulting, Inc
Location
City of London, London, United Kingdom
hands-on skills in: Java 8/17, Spring, Spring Boot, Hibernate, JEE, MVC, Swing, JSP, Webservices (REST/SOAP), Angular/AngularJS, jQuery, JSON, HTML, CSS, XSLT Expertise with: Tomcat, JBoss EAP, Apache, SQL, Oracle, PL/SQL, XML, Maven, Ant, CI/CD (Azure Pipeline), Jira, Subversion Experience ...

Full-Stack Software Developer

Hiring Organisation
Sanderson Government and Defence
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
Up to £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 ...

React JS Developer

Hiring Organisation
HCLTech
Location
City of London, London, United Kingdom
Strong proficiency in React JS , JavaScript (ES6+) , HTML5 , and CSS3 . Experience with state management tools (Redux, Context API). Familiarity with REST APIs , JSON , and asynchronous programming. Knowledge of version control systems (Git) and build tools (Webpack, Babel). Understanding of responsive design and UI/UX principles. ...

OpenAI Architect (FDE)

Hiring Organisation
HCLTech
Location
City of London, London, United Kingdom
analytics; define custom GPTs governance (actions/connectors, approvals) and runbooks. • OpenAI API architecture: Design patterns for Assistants with multi‐tool orchestration, structured outputs (JSON schemas), function/tool calling, Files/Batch for bulk jobs, Moderations, and Embeddings for retrieval. • RAG & evaluation: Stand up OpenAI‐centric RAG (chunking, embeddings ...

Python Developer

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

Developer - D365 CE

Hiring Organisation
Morson Edge (Technology)
Location
City of London, London, United Kingdom
Automate flows and Canvas Apps Strong skills in Dynamics 365 CRM configuration, customisation, and integration capabilities Expertise in integration technologies like Logic Apps, HTTP, JSON Proficiency in programming languages such as .NET, C#, JavaScript Development and Project Leadership Experienced in developing Dynamics plugins and enhancing forms with JavaScript and HTML ...

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

Hiring Organisation
Hunter Bond
Location
City of London, London, United Kingdom
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 ...

Python Developer

Hiring Organisation
Insight Global
Location
City of London, London, United Kingdom
Haves 4+ years of Python development experience. Strong understanding of monitoring platforms and scripting. Ability to schedule scripts and ensure data integrity. Proficiency in: JSON and data manipulation React REST APIs, FastAPI Unix/Linux OpenShift, Docker, Kubernetes Experience with unit testing and writing clear Jira tickets. Plusses Previous experience ...

iOS Developer

Hiring Organisation
YEO Messaging
Location
City of London, London, United Kingdom
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 Support Engineer

Hiring Organisation
FRESH
Location
City of London, London, United Kingdom
points. ️ Ideal Candidate Profile 2+ years in a technical support role within a SaaS or cloud-based software company. Strong understanding of REST APIs , JSON , authentication flows, and integration patterns. Confident analysing logs, network requests, and browser dev tools. Experience with common support platforms (Intercom experience is beneficial). Excellent ...

Artificial Intelligence Engineer Intern(Applied GenAI)

Hiring Organisation
NetMind.AI
Location
City of London, London, United Kingdom
Streamlit blindly. (Experience with Gradio/Chainlit is also fine). API Experience: You are familiar with calling REST APIs and handling JSON data. Problem Solver: You can take a vague requirement from a BD (e.g., "Analyze this report") and turn it into a technical solution. Proficient in Chinese Mandarin ...

Implementation Manager (Fintech)

Hiring Organisation
X4 Technology
Location
City of London, London, 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 ...

Product Owner

Hiring Organisation
Yonda
Location
City of London, London, United Kingdom
researching and using AI tools to optimise internal workflows Able to guide prioritisation based on data-driven decision making Comfortable with Rest API’s, JSON, and testing tools like Postman (not to engineering standard) Knowledge or exposure to accounting, tax, financial services Exposure to tools such as Mixpanel, Userpilot Desirable ...

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 ...