31 to 55 of 117 RESTful Jobs in London

Senior Java Developer (Low-Latency Payments Systems)

Hiring Organisation
RE Partners
Location
City of London, London, United Kingdom
hear from you. Key Responsibilities : Design, develop, and optimize low-latency, high-throughput backend systems using Core Java and SpringBoot. Build and maintain RESTful APIs and microservices that power secure payment workflows. Work with XML-based messaging standards and protocols commonly used in financial transactions. Deploy, monitor, and scale applications ...

Senior Python Engineer

Hiring Organisation
Levy Global
Location
City of London, London, United Kingdom
Working across the full software development lifecycle in an agile environment Collaborating with Product Managers and stakeholders to shape technical solutions Building and integrating RESTful APIs Contributing to architecture decisions and technical best practices Mentoring engineers and supporting team growth Ensuring systems are reliable, scalable, secure, and maintainable What ...

Lead Software Engineer

Hiring Organisation
Harrington Starr
Location
London Area, United Kingdom
resilient, scalable systems that automate complex operational workflows. Key responsibilities: Architect, develop, and maintain scalable backend systems using Node.js and TypeScript Design and build RESTful APIs, microservices, and event-driven architectures Integrate backend services with AI/LLM workflows and automation systems Build reliable data pipelines, background jobs, and operational ...

Principal Java Engineer

Hiring Organisation
RE Partners
Location
London Area, United Kingdom
culture, we want to hear from you. Key Responsibilities: Design, develop, and optimize low-latency, high-throughput backend systems using Java. Build and maintain RESTful APIs and microservices that power secure payment workflows. Work with messaging standards and protocols commonly used in financial transactions. Deploy, monitor, and scale applications ...

Senior Software Engineer, CalcGraphs - Vice President

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
development experience with Java.Solid experience with Java frameworks (e.g., Spring, Spring Boot, Quarkus).Experience designing, building, and maintaining large-scale, distributed systems.- Experience with RESTful API design and implementation.- Experience with unit testing, integration testing, and test automation frameworks (e.g., JUnit, Mockito).- Experience working in Agile/Scrum development ...

Blockchain Developer

Hiring Organisation
eTeam
Location
City of London, London, United Kingdom
platforms (Ethereum, GoQuorum, Hyperledger Besu, Corda). Implement asset tokenization, on-chain/off-chain data models, and blockchain transaction workflows. Develop and integrate RESTful APIs and microservices (Node.js/Java) to interact with smart contracts. Ensure security, performance, and scalability of smart contracts and blockchain applications. Collaborate with architects ...

Java Technical Lead - London, Wembley

Hiring Organisation
Adecco
Location
London, United Kingdom
Employment Type
Permanent
Salary
£75000 - £80000/annum + Benefits
YAML workflows - not as a DevOps engineer, but as a developer who understands the pipeline their code flows through. API Mastery: Deep expertise in RESTful API design principles, OAuth2 authentication flows (including FusionAuth integration), and DMARC-compliant transactional email logic via SendGrid. Duties Engineering Standards: Define and enforce the clients ...

Lead Modernization Engineer Java / Node.js - London, Wembley

Hiring Organisation
Adecco
Location
London, United Kingdom
Employment Type
Permanent
Salary
£75000 - £80000/annum + Benefits
YAML workflows - not as a DevOps engineer, but as a developer who understands the pipeline their code flows through. API Mastery: Deep expertise in RESTful API design principles, OAuth2 authentication flows (including FusionAuth integration), and DMARC-compliant transactional email logic via SendGrid. Duties Engineering Standards: Define and enforce the clients ...

Python Developer

Hiring Organisation
Sanderson
Location
London Area, United Kingdom
Global Interpreter Lock (GIL), multithreading, multiprocessing, and asyncio Strong grasp of type hinting, generators, iterators, and Pythonic loop constructs Proven ability to design RESTful APIs for high-throughput, low-latency systems Experience with unit testing, integration testing, and test automation frameworks Solid understanding of PostgreSQL, Redis, and message queues (e.g. ...

Lead DevOps Engineer

Hiring Organisation
Tank Recruitment
Location
London, United Kingdom
Employment Type
Permanent
Salary
£90000 - £110000/annum
Technical Depth: Elite proficiency in managing and scaling cloud-native infrastructure, with deep expertise across AWS, Kubernetes, Docker, CI/CD pipelines, Git, and RESTful APIs. Leadership Track Record: Demonstrable experience operating in a Technical Lead, Infrastructure Architect, or Senior DevOps capacity-with the proven ability to build, scale ...

Python Developer

Hiring Organisation
Prolo
Location
London Area, United Kingdom
engineering experience Strong proficiency in Python (3.10+) with deep understanding of async programming Experience with Poetry or similar Python dependency management tools Experience building RESTful APIs and micro-services Solid understanding of database design and optimisation (both SQL and NoSQL) Experience with graph databases (Neo4j preferred) or willingness to learn ...

Senior Software Engineer

Hiring Organisation
Searchability®
Location
City of London, London, United Kingdom
Claude, Cursor etc) Experience within a Front-end Development role Experience within a line management capacity Proficiency in microservices and related tools Expertise in RESTful API development and management Familiarity with databases, including SQL, PostgreSQL, MongoDB, and Linux OS Strong understanding of design patterns and relevant implementation models Proficiency ...

Senior Software Engineer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Driven Design (DDD) Dependency Injection (e.g., InversifyJS) Repository and modular design patterns Experience building maintainable, testable backend systems APIs & Data Design and operation of RESTful APIs API versioning and request validation Advanced filtering using RSQL or equivalent Experience with MongoDB (modeling, indexing, performance tuning) Experience with Redis for caching ...

Senior SharePoint Developer and Administrator

Hiring Organisation
Ryder Reid Legal Ltd
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
Salary negotiable
Develop and maintain SharePoint Online intranet structures including architecture, navigation, branding, and content design. Integrate SharePoint with internal systems and third-party platforms using RESTful APIs and Microsoft Graph. SharePoint Administration & Operations Administer both SharePoint SE (on-prem) and SharePoint Online environments. Manage updates, cumulative patches and platform maintenance. Monitor ...

Engineering Manager – Software & ML

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
What we’re looking for Leadership Excellence: Proven experience leading and supporting software engineering teams to achieve business goals. Technical Breadth: Excellent knowledge of RESTful API development in modern languages (Java, Python, or .Net) and experience with Cloud environments (AWS or Azure). AI Awareness: You aren't necessarily ...

Engineering Manager - Software & Ml

Hiring Organisation
Capital One UK
Location
London, UK
Employment Type
Full-time
move in sync.What we're looking forLeadership Excellence: Proven experience leading and supporting software engineering teams to achieve business goals.Technical Breadth: Excellent knowledge of RESTful API development in modern languages (Java, Python, or .Net) and experience with Cloud environments (AWS or Azure).AI Awareness: You aren't necessarily a researcher ...

Engineering Manager - Software & ML

Hiring Organisation
Capital One UK
Location
London, UK
Employment Type
Full-time
What we’re looking for Leadership Excellence: Proven experience leading and supporting software engineering teams to achieve business goals. Technical Breadth: Excellent knowledge of RESTful API development in modern languages (Java, Python, or .Net) and experience with Cloud environments (AWS or Azure). AI Awareness: You aren't necessarily ...

Vice President, Client Platforms Web Architect

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Analytics, Marketo, Adobe Engage, or other marketing automation platforms.* Experience with React, TypeScript, or other component‐based front‐end frameworks.* Understanding of API integrations, RESTful services, or headless CMS architectures.* Familiarity with CI/CD tools and DevOps processes (Azure DevOps, GitHub Actions, Jenkins, etc.).**Education*** Bachelor's degree ...

C# Developer

Hiring Organisation
Impellam Group
Location
London Area, United Kingdom
written and oral, inside and outside the team. • Solid experience with client or server-side C# development. • Solid experience with web-based applications and restful APIs. • Solid experience with relational databases and SQL knowledge. • An ability to design performant software and an understanding of application performance profiling. Desirable Requirements • Experience ...

C# Developer

Hiring Organisation
Lorien
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
Salary negotiable
written and oral, inside and outside the team. * Solid experience with client or server-side C# development. * Solid experience with web-based applications and restful APIs. * Solid experience with relational databases and SQL knowledge. * An ability to design performant software and an understanding of application performance profiling.Desirable Requirements * Experience with ...

Software Engineer

Hiring Organisation
Chumley
Location
City of London, London, United Kingdom
looking for Strong proficiency with React , modern JavaScript/TypeScript, and Vite or equivalent tooling. Back-end experience (e.g. Node.js or similar) with RESTful or GraphQL APIs. Experience integrating or working with Salesforce (APIs, webhooks, or data pipelines). Good understanding of application architecture, performance, and security. Comfort working ...

Back End Developer - Data Centre Platform

Hiring Organisation
TGS International Group
Location
London Area, United Kingdom
systems that are scalable, efficient, and reliable Turn product and technical requirements into well-structured backend solutions Design & Deliver APIs Build clean, well-documented RESTful APIs Ensure APIs are performant and easy to integrate with other services Maintain consistency across services and interfaces Own Quality & Architecture Contribute to system design ...

💻 C#.Net Engineer | Fintech | Greenfield Event-Driven Data Platform | £120,000 + Benefits | Hybrid (London)

Hiring Organisation
VirtueTech Recruitment Group
Location
City of London, London, United Kingdom
following: 💻 Strong experience with C#.Net Core ⚡ Event-driven messaging using Azure Event Hubs or Apache Kafka 🧩 Designing and deploying microservices (RESTful APIs/gRPC) 🗄️ Solid database experience — SQL Server , MongoDB , or CosmosDB 🧰 Familiarity with Azure DevOps , Git , and CI/CD Pipelines 🧪 Strong focus on quality: unit testing , BDD (Cucumber ...

Sr AI Solutions Consultant

Hiring Organisation
Jobleads-UK
Location
City Of London, England, United Kingdom
business automation Platform knowledge with strong technical knowledge of the TotalAgility platform or similar intelligent automation platforms Integration experience with expertise in using APIs, RESTful web services, and Tungsten Automation's SDK to integrate and customize solutions Cloud deployment experience with cloud architecture and deployments, including designing scalable and secure ...

Senior Fullstack Software Engineer

Hiring Organisation
Outsmart Insight
Location
London Area, United Kingdom
them into robust, production-ready solutions. What you’ll be doing Designing and maintaining backend services primarily in Python Developing and evolving well-structured RESTful APIs Designing and improving data models across relational (e.g. PostgreSQL) and NoSQL databases Working across the stack where needed, including JavaScript, modern HTML/ ...