1 to 25 of 121 Permanent REST Jobs in Central London

strong asynchronous programming skills 2+ years of frontend development experience with React and modern JavaScript/TypeScript Demonstrated ability to build and maintain polished, responsive user interfaces Experience with REST APIs and modern web frameworks, such as FastAPI Practical experience with PostgreSQL or similar relational databases Proficiency with HTML5, CSS3, and modern frontend build tools Strong Linux and Git skills More ❯

high-quality, scalable software in a Kanban Agile environment. What We’re Looking For: 3–6 years’ experience as a software engineer or similar. Strong skills in C#, SQL, REST APIs, and single-page web applications. Hands-on experience with Azure, Git, CI/CD, and DevOps tooling. Exposure to or interest in Python and Databricks as part of a More ❯

5+ years of hands-on experience in Guidewire development. Strong expertise in Guidewire modules (PolicyCenter, BillingCenter, ClaimCenter). Proficiency in Gosu, Java, SQL, XML, and Web Services (SOAP/REST). Experience with version upgrades (e.g., V7 to V10), rule/event framework, and product model changes. Familiarity with Agile methodologies, CI/CD, DevOps, and tools like JIRA, Git More ❯

deliver at pace and scale. The toolkit you’ll use 🌳 Data Science & Engineering: Python (NumPy, Pandas, scikit-learn, PyTorch/TensorFlow), SQL, NoSQL, Spark, big data ecosystems Visualisation & APIs: REST/JSON, Postman, Flask/FastAPI, Power BI/Tableau, D3.js DevOps & Cloud: CI/CD, Docker, AWS (S3, Lambda, SageMaker), Kubernetes, Terraform/CDK ML Ops & Automation: MLFlow, feature More ❯

plus). 5+ years of software engineering experience, mainly in C# and/or Python. Strong knowledge of cloud services (Azure App Services, Functions, AI Services). Proficiency in REST APIs, microservices, and event-driven architectures. Experience with Git-based version control (GitHub/Azure DevOps) and CI/CD tools (Azure DevOps, GitHub Actions, Jenkins). Solid understanding of More ❯

development experience on the front-end development with single page application frameworks like Angular, React. Hands on experience in working with TypeScript. Demonstratable experience in working with and designing REST APIs Knowledge and experience in working with NodeJS Experience with Unit testing (Jest, Vitest). Solid understanding and experience in HTML 5 and CSS 3. Hands-on experience in developing More ❯

re Looking For 5+ years of experience in software development (with 3+ years in Golang preferred). Strong understanding of concurrency, distributed systems , and microservices architectures . Experience with REST/gRPC APIs , PostgreSQL , Kafka , or similar technologies. Familiarity with Docker , Kubernetes , and cloud platforms (AWS, GCP, or Azure). Excellent problem-solving skills and a passion for clean, efficient More ❯

a fast-paced or start-up environment. -> Good experience in back-end development with Node.js or a similar runtime. -> Familiarity with front-end frameworks like React.js -> Experience with Docker, REST APIs, and cloud services (AWS, GCP, or Azure). -> A pragmatic problem solver who can balance delivering features with maintaining code quality. ->Strong communication skills and ability to collaborate across More ❯

Development Solid software engineering background with proficiency in Python, JavaScript/TypeScript, Java, or Go Experience with modern frameworks (React, Node.js, Django, FastAPI) Knowledge of microservices architecture, API design (REST, GraphQL) Experience with containerization (Docker, Kubernetes) and cloud-native development patterns DevOps & SRE Practices Experience implementing CI/CD pipelines and DevOps methodologies Knowledge of infrastructure monitoring (Datadog), log aggregation More ❯

Excellent problem-solving and communication abilities Preferred: Candidates with experience in Confluent Kafka and its ecosystem will be given preference: • Experience with Kafka Connect, Kafka Streams, KSQL, Schema Registry, REST Proxy, Confluent Control Center • Hands-on with Confluent Cloud services, including ksqlDB Cloud and Apache Flink • Familiarity with Stream Governance, Data Lineage, Stream Catalog, Audit Logs, RBAC • Confluent certifications (Developer More ❯

engineers Experience with Python, PostgresSQL and Unix Experience with writing intermediate to advanced SQL queries for data extraction and troubleshooting purposes. Experience with using and troubleshooting programming interfaces especially REST APIs and Web Sockets. Experience with monitoring tools (Grafana, DataDog) Experience working with Crypto and blockchain (DLT) Familiarity with common engineering development workflows and tools (e.g. JIRA, Confluences, github, scrum More ❯

Terraform. Experience with code repository and package management on GitHub and GitHub Packages. Proficiency in project management tools and documentation systems, like Jira and Confluence. Knowledge and experience with REST APIs. Understanding and experience with the Nginx web server. Strong understanding of network fundamentals (TCP/IP, HTTP, DNS, TLS, etc.) Familiarity with familiar 12factor app practices More ❯

will be expected to have the following: 6+ years commercial experience with Java Good understanding of JVM (memory model, concurrency, data structures) Spring framework, Spring Boot Maven Knowledge of REST APIs & Microservices MongoDB JUnit and TDD Nice to haves: AWS Kotlin Git Pipelines Javascript, React Redis Knowledge of Linux Key Details Reporting to: CTO Hours: Full time Location London - Hybrid More ❯

of overall IT experience Strong hands-on experience with UiPath Studio, Orchestrator, Proficiency in UiPath Studio, Orchestrator, REFramework, and Document Understanding. Proficiency in .NET (VB/C#), SQL, and REST API integration. Experience in designing scalable and reusable automation components. Good understanding of SDLC, Agile methodologies, and DevOps practices. Excellent problem-solving, communication, and stakeholder management skills. Preferred Qualifications: UiPath More ❯

scalability, performance, and security in mind What We’re Looking For Strong experience with JavaScript/Node.js in a production environment Hands-on experience with AWS services Familiarity with REST APIs, microservices, and modern CI/CD workflows Comfortable working in a fast-paced, collaborative start-up environment Passionate about solving real problems with clean, maintainable code Nice to Have More ❯

you. 📩 Apply now to learn more about the company and this opportunity! (Python Engineer, Python Developer, Backend Developer, Software Developer, Software Engineer, Django Developer, Django, FastAPI, Flask, AWS, SaaS, REST API, Cloud, CI/CD, Start-up, London, Hybrid More ❯

of architecture, mentor junior developers, and help define best practices Hybrid working — 3 days per week in South London , with flexibility on other days Tech Stack Backend: Python, Django, REST APIs Database: PostgreSQL Cloud: Heroku, AWS Frontend: HTML, CSS, JavaScript, Bootstrap, HTMX Tooling: GitHub Actions, Notion, Slack, Jira (as the team scales) What They’re Looking For 3–5+ years More ❯

years of professional software engineering experience, ideally working on backend systems, APIs, or AI-related products Proficiency in Python and JavaScript/TypeScript (Node.js) Strong understanding of backend architectures, REST/GraphQL APIs, and data modelling Experience with containerisation (Docker) and cloud platforms ( GCP , AWS , or similar) Familiarity with LLM or AI APIs Exposure to agentic frameworks (LangChain, LlamaIndex, Semantic More ❯

company’s platform features and technologies from the ground up. Experience needed as a Back End Developer: 3+ years of Node.js development Type Script/Strong JavaScript skills React REST API development SQL Git More ❯

party vendors. Required Skills & Experience: Proven E2E test automation experience using Playwright, Cypress, or Selenium. Expertise in UI testing (visual regression, responsive design, cross-browser). Strong API testing (REST/GraphQL) – automated and manual. Proficiency in JavaScript/TypeScript; Python experience is a plus. Solid understanding of Unix/Linux, SQL, and relational databases. Prior exposure to financial markets More ❯

calibre engineering team. What You’ll Do Design and build scalable backend and fullstack solutions in Node.js, TypeScript, React, AWS Collaborate closely on architecture, data models, and API design (REST, GraphQL, tRPC, WebSockets) Balance speed with long-term maintainability — quality and performance matter here Work on innovative challenges across document parsing, data visualisation, and ML integration Who You Are 5+ More ❯

you’ll be doing: Design and build complex apps with C# and .NET Core/Framework Lead migrations from Web Forms/ASMX to modern stacks (.NET Core, MVC, REST APIs) Contribute to the technical roadmap and influence best practices across squads Partner with QA, Product, and DevOps to deliver reliable features in agile sprints Implement and fine-tune CI More ❯

Dataverse, connectors, and integrations. Experience with Power BI, DAX, Power Query, and data modeling. Knowledge of SharePoint, Microsoft Teams, Azure Logic Apps, and Microsoft 365 ecosystem. Experience with JSON, REST APIs, and scripting (e.g., PowerShell or JavaScript). Familiarity with Agile methodologies and DevOps practices. Excellent problem-solving, communication, and interpersonal skills. Preferred Qualifications: Microsoft Certified: Power Platform App Maker More ❯

days per week in the office. 💷Highly competitive package + bonus + benefits What You’ll Bring Strong experience with React, TypeScript, Redux, Apollo Client , and GraphQL/REST APIs . Experience working in a cloud-native environment ( AWS or Azure ). Familiarity with data streaming (WebSockets, chunked responses) and front-end performance optimisation . Strong understanding of testing frameworks More ❯

with engineers to define testable architectures and drive quality through code. Develop and execute advanced test strategies for Android, Linux, and IoT platforms. Create comprehensive test plans for APIs (REST, IPC), WebUI, and OTA updates. Enhance CI/CD pipelines with automated quality gates and documentation. Skills & Experience Strong coding skills in Python, Java, or similar languages for test automation. More ❯