1 to 25 of 49 REST Jobs in the City of London

Principal Technical Lead

Hiring Organisation
RSSB
Location
City of London, London, United Kingdom
Employment Type
Contract, Work From Home
Core code-first migrations and data modelling. Strong front-end engineering skills in React and TypeScript, including component architecture, state management, and integration with REST/SignalR backends. Solid understanding of event-driven architectures. Hands-on experience with PostgreSQL or comparable relational databases. Experience with API and application security. Practical ...

Python Developer

Hiring Organisation
Spait Infotech
Location
City of London, London, United Kingdom
documentation. Ensure application security, scalability, and reliability. Required Skills Strong proficiency in Python. Experience with Django, Flask, FastAPI, or similar frameworks. Strong knowledge of REST APIs and web services. Experience with SQL databases such as MySQL, PostgreSQL, or SQL Server. Familiarity with NoSQL databases such as MongoDB. Knowledge ...

Senior Python Engineer

Hiring Organisation
Levy Global
Location
City of London, London, United Kingdom
software engineering principles (SOLID, testing, clean code) Experience with AWS cloud services Hands-on experience with Django, FastAPI and/or Flask Strong REST API development and integration experience Experience working within Agile/Scrum teams Excellent communication and problem-solving skills Nice to Have Event-driven architecture and microservices ...

Senior Developer

Hiring Organisation
Lorien
Location
City Of London, England, United Kingdom
system improvements Support and refactor legacy platforms, ensuring performance, scalability and stability Troubleshoot complex production issues across business‐critical systems Design and integrate REST APIs and third‐party services, including exposure/cat modelling tools Collaborate with business and technical stakeholders in an agile delivery environment Key Experience Required (Essential ...

Boomi Integration Architect

Hiring Organisation
Jobleads-UK
Location
City Of London, England, United Kingdom
integration platforms. Support digital transformation initiatives and enterprise modernization programs. Required Technical Skills Strong hands‐on experience with Boomi AtomSphere. Expertise in API Management, REST, SOAP, GraphQL, and microservices architectures. Experience with XML, JSON, XSLT, data mapping, and transformation. Knowledge of enterprise integration patterns and middleware technologies. Experience integrating ...

Java Tech Lead (London)

Hiring Organisation
Fruition Group
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
capacity Solid understanding of microservices architecture and distributed systems Experience with Spring/Spring Boot Cloud experience (AWS, GCP, or Azure) Strong knowledge of REST APIs , messaging, and integration patterns Experience working in agile, consultancy, or client-facing environments Desirable Skills Event-driven architectures (Kafka, RabbitMQ, etc.) Containerisation and orchestration ...

Lead AI Engineer

Hiring Organisation
Anson Mccade
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
technologies include: Python Azure Databricks Generative AI/LLM frameworks Agentic AI tooling and orchestration frameworks LangChain/LangGraph PyTorch and ML libraries REST APIs Docker and containerisation CI/CD pipelines Git-based development workflows What we're looking for 4-6 years' experience within Software Engineering, AI Engineering ...

Senior Full Stack Developer

Hiring Organisation
Glite Tech
Location
City of London, London, United Kingdom
decomposition principles, and resolving monolith vs. microservices trade-offs. Experience with SQL and NoSQL databases. Understanding of best practices in building scalable mobile APIs (REST, HTTPS, etc.). Good principles of security management (secrets, protocols, etc.). Experience with some Python web frameworks (Django, Flask, FastAPI, etc.). Desirable Skills ...

Senior Staff Forward Deployed Engineer

Hiring Organisation
Uniphore
Location
City of London, London, United Kingdom
track record deploying AI/ML or data-intensive applications in production Strong full-stack skills: Python, Node.js/Go, React/Vue, SQL, REST/GraphQL DevOps proficiency: Docker, Kubernetes, CI/CD, and major cloud platforms Expertise in LLMs, Prompt Engineering, Vector DBs, RAG pipelines, and Agentic orchestration ...

Full Stack Engineer

Hiring Organisation
Sing King
Location
City of London, London, United Kingdom
Senior Leadership you’ll defi ne, scope, and plan improvements, new features, anticipating business needs before they happen. ● Maintain and develop our internal REST API that centralises business logic for the CMS, tools, asset management, data validation, and publishing of Karaoke content. ● Transform the CMS frontend to deliver a fast ...

Graduate Frontend Engineer — React / TypeScript FinTech

Hiring Organisation
SpectrAxe
Location
City of London, London, United Kingdom
learn on the job) Stylus or another CSS preprocessor Tailwind or utility-first CSS Exposure to financial services or trading UIs Familiarity with REST APIs , WebSockets, or real-time UIs FX/options domain knowledge Java , GWT , or backend ownership What we offer Competitive salary & bonus (band appropriate to graduate ...

Scala Developer (Remote)

Hiring Organisation
Stealth iT Consulting
Location
City of London, London, United Kingdom
HTTP filters. 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. ...

Scala Developer - Remote Contract - £450 Outside IR35

Hiring Organisation
Stealth iT Consulting
Location
City of London, Greater London, UK
Strong understanding of 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 ...

Blockchain Developer

Hiring Organisation
eTeam
Location
City of London, London, United Kingdom
Java (Spring Boot). Strong knowledge of microservices architecture and asynchronous processing patterns. Experience designing on-chain vs off-chain data models. Familiarity with REST APIs, event-driven systems, and message queues. Solid understanding of blockchain security concepts (permissions, key management, transaction integrity). If you are interested in this ...

AI Solutions Architect - up to £120K+Benefits - Hybrid/London

Hiring Organisation
Jobleads-UK
Location
City Of London, England, United Kingdom
experience with AI-assisted development tools Strong knowledge of cloud AI and ML platforms and associated architecture patterns Experience designing and managing APIs including REST and GraphQL Strong understanding of microservices and serverless architectures Practical experience with DevOps and MLOps practices including CI/CD pipelines Knowledge of security frameworks ...

Solutions Architect, Legal Technology

Hiring Organisation
Brimstone Consulting
Location
City of London, London, United Kingdom
Employment Type
Permanent
Ensure 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 ...

React.js UI Developer - Low Latency

Hiring Organisation
HCLTech
Location
City of London, London, United Kingdom
Frontend Technologies: Expert-level proficiency in HTML, CSS, JavaScript, React, and TypeScript Real-Time Communication: Strong understanding of WebSockets, Server-Sent Events (SSE), and REST APIs State Management & Programming: Solid experience with state management libraries (e.g., Redux) and reactive programming paradigms Architecture: Strong understanding of micro-frontends and Single Page ...

Sharepoint Administrator

Hiring Organisation
ALFA TECHNOLOGY RECRUITMENT LTD
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£95,000
doing Leading migration from SharePoint 2016 on-prem to SharePoint SE and SharePoint Online Rebuilding legacy web parts using SPFx (TypeScript, React, REST APIs, Microsoft Graph) Administering both on-prem and cloud environments patching, upgrades, governance, DR Configuring Business Connectivity Services and External Content Types Designing and maintaining the enterprise ...

AWS Technical Lead

Hiring Organisation
INTEC SELECT LIMITED
Location
City of London, London, England, United Kingdom
Employment Type
Full-Time
Salary
£120,000 - £130,000 per annum
hybrid connectivity Proven troubleshooting experience across networking, compute, identity, and automation layers Experience producing technical documentation, operational runbooks, and engineering standards Knowledge of REST APIs and cloud integrations Exposure to multi-cloud environments including Azure and Oracle Cloud preferred Experience with AWS services including EC2, S3, Lambda ...

Solutions Architect – Legal Technology

Hiring Organisation
Jobleads-UK
Location
City Of London, England, United Kingdom
Ensure 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 ...

Senior Presales Engineer

Hiring Organisation
Uniphore
Location
City of London, London, United Kingdom
integration and security: designing, integrating, and securing API connections between AI platforms and business applications (e.g., CRM, ERP, data warehouses), with knowledge of protocols (REST, GraphQL) and authentication mechanisms (OAuth 2.0, API keys). Data and network architecture acumen – ability to discuss and propose solutions around data governance, network segmentation ...

Senior Oracle ERP Technical Consultant

Hiring Organisation
Square One Resources
Location
City, London, United Kingdom
Employment Type
Permanent
Salary
GBP 80,000 - 90,000 Annual
tuning and advanced development techniques. Experience designing and delivering integrations using Oracle Integration Cloud (OIC), Oracle SOA Suite, or comparable modern integration platforms supporting REST API-based architectures. Strong understanding of Oracle SaaS data models, including areas such as Accounts Payable, Accounts Receivable, Procurement, General Ledger, Human Resources and Payroll. ...

Python Software Engineer 6 Month Contract (Remote, UK)

Hiring Organisation
esenda
Location
City of London, London, United Kingdom
hands-on use of Flask (or similar frameworks). Solid understanding of Postgres (schemas, migrations, query performance, transactions). Experience designing and maintaining APIs (REST; event-driven experience is a plus). Comfortable shipping in cloud environments—ideally AWS—and working with modern CI/CD pipelines. A strong quality ...

Senior Oracle ERP Technical Consultant

Hiring Organisation
Jobleads-UK
Location
City Of London, England, United Kingdom
tuning and advanced development techniques. Experience designing and delivering integrations using Oracle Integration Cloud (OIC), Oracle SOA Suite, or comparable modern integration platforms supporting REST API-based architectures. Strong understanding of Oracle SaaS data models, including areas such as Accounts Payable, Accounts Receivable, Procurement, General Ledger, Human Resources and Payroll. ...

Senior Front-End Engineer- React Native, TypeScript, Mobile

Hiring Organisation
Gravitas Recruitment Group Ltd
Location
City, London, United Kingdom
Employment Type
Permanent
Salary
GBP Annual
bank based in Central London. * Experienced building production mobile apps in fast paced environments * Strong in React Native & TypeScript, shipping crossplatform apps * Experience with REST/GraphQL APIs and push notifications (APNs, FCM) * Familiar with mobile CI/CD (App Store Connect, Google Play) * Good understanding of mobile security (biometrics ...