1 to 25 of 227 REST Jobs in London

Data Scientist & ML Specialist — Contract Role

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
packages in Python, including numpy, pandas, matplotlib, etc. Familiar with relational & non‐relational databases such as SQL Server, MySQL, Mongo. Experience interacting with REST APIs. Developed web services and used JSON as a data exchange format. Nice to have - Experience with AWS. Nice to have - Experience working in an agile ...

Senior & Principal Java Camunda Enigneers

Hiring Organisation
Casci
Location
South East London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£75,000
Proven experience leading and mentoring teams of engineers to deliver high-quality, production-grade software (expected at Principal level) Familiarity with Spring Boot, REST APIs, and microservice architectures Knowledge of Docker, Kubernetes, Git, CI/CD pipelines, and automated testing frameworks Good knowledge of security, authentication, and integration patterns ...

Senior & Principal Java Camunda Enigneers

Hiring Organisation
17918
Location
London, United Kingdom
Proven experience leading and mentoring teams of engineers to deliver high-quality, production-grade software (expected at Principal level) Familiarity with Spring Boot, REST APIs, and microservice architectures Knowledge of Docker, Kubernetes, Git, CI/CD pipelines, and automated testing frameworks Good knowledge of security, authentication, and integration patterns ...

UI Architect

Hiring Organisation
Sanderson Recruitment
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£550 - £570 per day
within complex environments Expertise in React, JavaScript (ES6+), TypeScript, HTML5 and CSS3 Experience designing SPA or micro-frontend architectures Strong understanding of API integration (REST, API gateway patterns, BFF) Experience working in cloud environments such as AWS or Azure Exposure to Docker, Kubernetes and CI/CD pipelines Strong focus ...

Junior Software Engineer (Java / Kotlin / JVM)

Hiring Organisation
Salt Search
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£200 per day
Good communication skills and the ability to work collaboratively across technical and non-technical teams Useful Technical Experience * Kotlin * Java * JVM * Ktor or Spring * REST APIs * PostgreSQL * MongoDB * Redis * GitHub Actions or other CI/CD tools * Docker * Kubernetes * AWS, GCP or Azure * Monitoring and logging tools such as CloudWatch ...

Software Engineer / Developer (All Levels) - UK Wide

Hiring Organisation
describe.me
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£40,000 - £140,000 per annum
Hands-on experience with modern frameworks (Spring, .NET, Django, FastAPI, Rails, Express/NestJS, Laravel, React, Vue, Next.js, Angular or equivalent) Solid grounding in REST and/or GraphQL API design Working knowledge of relational and NoSQL databases—query design, indexing, schema modelling Familiarity with containerisation (Docker) and orchestration concepts ...

Principal Technology Architect - LLMs, agentic coding systems, intelligent IDEs, AI

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
research workflows where permitted; govern enterprise knowledge ingestion. Architecture & Integration Distributed systems, microservices, cloud‐native (Azure/AWS/GCP); secure API design (REST/GraphQL). MLOps & AIOps: CI/CD for AI, model lifecycle (eval, versioning, rollout/rollback), guardrails, telemetry, drift monitoring, prompt safety. DevSec & Responsible ...

Senior Java Developer IRC298567

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
leveraging core microservices patterns (e.g., Service Discovery, Circuit Breaker, API Gateway, and CQRS). Design and build robust, secure, and well-documented APIs (REST/gRPC) and manage inter-service communication using synchronous and asynchronous (event-driven) messaging patterns. Collaborate with cross-functional teams (Product, DevOps, QA) to define, design ...

Senior Developer - Global Regulatory & Controls Technology

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
required, exposure to the following is highly advantageous: Java | Python | Kubernetes | Kafka | Microservices | Event-Driven Architecture | CI/CD | SQL | Oracle | Redis | Elasticsearch | REST APIs | Cloud Technologies | Agile Delivery Location & Working Pattern London (Hybrid Working) We offer a flexible hybrid model combining office collaboration with remote working. Occasional ...

S&T - Credit Systematic Trading Developer - Director

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
latency services, concurrency, messaging Python for research, analytics, data processing FIX protocol experience Front‐end engineering: JavaScript/TypeScript React real‐time dashboards (REST/WebSocket) Modern UI state management Distributed systems: Kafka/Chronicle PostgreSQL/KDB++ Caching strategies Avro/Protobuf DevOps: Linux Docker/Kubernetes CI/ ...

Senior Software Engineer

Hiring Organisation
Awin
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
Competitive salary
Java/Spring Passion for clean, maintainable code with a strong understanding of SOLID principles Hands-on experience designing AWS-based systems, microservices with REST APIs, and event-driven architectures Focus on engineering quality through code reviews, testing, and test strategy improvement Responsibility for maintaining CI/CD pipelines ...

AI Coder/Senior Full-Stack Engineer (.NET / React) — Remote, UK

Hiring Organisation
Event Solutions
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
Salary negotiable
success. Back-end: C#, .NET, Node.js Front-end: JavaScript/TypeScript, React, Next.js Cloud & Architecture: AWS (provisioned with Terraform), microservices, distributed systems, scalable REST APIs. Our environment is a hybrid — the newer stack runs on AWS with Azure Service Bus for messaging, while the legacy/static side still lives ...

Dell Boomi Integration Consultant

Hiring Organisation
Oscar Associates (UK) Limited
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £550 per day
profile configuration Create and manage secure Managed File Transfer (MFT) workflows to support high-volume and sensitive data transfers Publish, secure and govern REST/SOAP APIs through Boomi API Management, including gateway configuration, throttling and developer portal management Develop and maintain CI/CD pipelines using Git, Azure DevOps ...

Lead Solution Architect Endur (ETRM Gas & Power Trading)

Hiring Organisation
BP Energy
Location
South West London, London, United Kingdom
Employment Type
Work From Home
attribution, settlement, confirmations and regulatory reporting. Expert understanding of integration architecture in high-performance trading environments including messaging (JMS, MQ, Kafka), API design (REST, GraphQL, gRPC), event-driven patterns, ETL/ELT, real-time market data connectivity and STP workflows. Strong data architecture expertise, including canonical data models, data mesh ...

Python Developer

Hiring Organisation
Brio Digital
Location
London, Baker Street, United Kingdom
Employment Type
Contract
Contract Rate
£550/day
technical design discussions Essential Skills & Experience Strong commercial experience developing applications with Python Proven hands-on experience with Microsoft Azure Experience building and consuming REST APIs and microservices Strong understanding of cloud architecture and Azure services Experience with CI/CD pipelines and DevOps practices Familiarity with Git and modern ...

Senior Java Developer

Hiring Organisation
Oscar Technology
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£100,000 - £140,000 per annum
delivering secure, reliable software solutions. Banking or financial services experience is highly desirable. Tech stack : Java, Spring Boot, Spring Cloud, Hibernate/JPA, REST APIs, Microservices, Sybase, Oracle/PostgreSQL, AWS, Docker, Kubernetes, Jenkins, TeamCity and Git. Experience with cloud platforms, CI/CD, messaging technologies, event-driven architecture, OAuth2 ...

AI Software Engineer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
security testing). Knowing when to keep a human in the loop. Advanced modern JavaScript/TypeScript, NodeJS and React. Web development principles (REST, SPA...). Microservice architecture, AWS and DevOps. Building LLM-powered features: tool-calling, retrieval-augmented generation (RAG), evaluation/eval harnesses and observability (desirable). Familiarity ...

Senior Forward Deployed ML Engineer, Agents

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Optimize for sub-500ms latency, natural conversation flow, turn detection, and interruption handling in real-time systems Integrate agents directly into customer codebases via REST/GraphQL/WebSocket APIs and custom SDKs (Python, TypeScript) Act as trusted technical advisor to customers, shaping AI strategy and guiding roadmap decisions from ...

Sr. Software Engineer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
focus. Proficiency in Golang is required. Demonstrated ability in using AI-augmented development workflows (e.g., Claude, Codex, Copilot). Experience designing and developing resilient REST APIs and cloud-native applications (preferably AWS). Good understanding of microservice architecture and backend design principles. Solid knowledge of Postgres, Redis, and ideally DynamoDB. ...

Lead Software Engineer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
client-side scripting (TypeScript, JavaScript, jQuery) Working knowledge of Python, Azure stack Experience with GitHub, CI/CD, DevOps Expertise in design patterns and REST API development Ability to deliver software and artifacts independently Experience in complex software troubleshooting techniques Integration Expertise (Must-Have) Experience with Salesforce, MS Dynamics ...

Applied AI ML - Senior Associate - Machine Learning Engineer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Experience designing/implementing pipelines using DAGs (e.g. Kubeflow, DVC, Ray) Experience of big data technologies Have constructed batch and streaming microservices exposed as REST/gRPC endpoints Experience with container orchestration tools (e.g. Kubernetes, Helm) Knowledge of open source datasets and benchmarks in NLP Hands‐on experience in implementing ...

Enterprise Architect - AI

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
analysis. Integration — AI Stack, Enterprise Networks & Service Provider Environments Platform integration: API-based and event-driven integration of AI platforms with enterprise systems, using REST/gRPC APIs and message/event streaming platforms (e.g. Kafka). Enterprise network integration: designing connectivity between AI/GPU infrastructure and existing campus ...

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
development in MuleSoft, Java, and 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. ...

Software Developer

Hiring Organisation
Proactive Appointments
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
Salary negotiable
technologies, including Azure, AI, and the Microsoft Power Platform. Experience Required: C#/.NET, ASP.NET and .NET Core. SQL Server. JavaScript, HTML and CSS. REST APIs. Microsoft Azure. Azure DevOps and Git. SharePoint Online. Power Automate (Microsoft Power Platform). Strong communication and problem-solving skills. Desirable Experience: Power ...

Applications Engineer

Hiring Organisation
Picture More
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£75,000 - £90,000 per annum
hands-on technical experience in at least one of the following areas: Azure Integration Services, Logic Apps, Function Apps, API Management or Service Bus REST APIs and systems integration SQL Server, data flows, ETL, reporting or database development Power Platform, Power Apps, Power Automate, Power BI or Microsoft Fabric C# ...