1,551 to 1,575 of 2,217 Permanent React Jobs

Mid-Level Data Engineer (Python/ AWS)

Location
Belfast, Northern Ireland, United Kingdom
platform Design and implement APIs to expose data for downstream consumers Contribute to cloud-based data platform development in AWS Support lightweight frontend work (React/TypeScript) for data-focused tools where needed Implement observability practices (logging, monitoring, tracing) across data pipelines and APIs Improve reliability, performance, and failure handling … requirements Good communication skills and experience working in cross-functional teams Nice to Have Experience with TypeScript or JavaScript Experience contributing to frontend applications (React) Familiarity with observability tooling (logging, monitoring, tracing) Experience with data modelling and metadata management Exposure to CI/CD practices for data pipelines and services ...

Full Stack Engineer + AI / AI Tooling BetterMe Responds Quickly $$$$

Location
United Kingdom
Your impact:*** Implement and enhance features from conception through to deployment, ensuring they meet strategic business objectives.* Design and develop content management systems using React, Vue, and JavaScript, dedicating approximately 50% of your time to frontend tasks and leveraging AI-assisted tools to accelerate development where appropriate.* Write clean, secure … Work confidently across the full stack, including backend (PHP 8.0+ with OOP skills, using frameworks like Symfony or Laravel) and frontend technologies (JavaScript, jQuery, React/Vue).* Actively use Agentic Coding tools (e.g., Claude Code, Codex, Cursor) to improve development workflows.* Work with relational databases (MySQL and/ ...

Senior Software Engineer (Fullstack) - Merchant EMEA

Location
Greater London, England, United Kingdom
teammates, systems, and leaders across DoorDash and Wolt. Together, we’re unlocking new possibilities as one global team. Senior Fullstack Engineer (Go/Kotlin & React) About the Team Merchant EMEA Engineering builds the technology that helps merchants join, grow, and operate successfully across our markets. Our organization brings together … backend boundaries. Our Tech Stack Our backend services primarily use Go and Kotlin , while our frontend applications use technologies such as TypeScript and React . We also work with technologies including Kafka, PostgreSQL, MongoDB, Redis, AWS, Kubernetes, Docker, gRPC, and modern cloud infrastructure. Our Humble Expectations We're looking ...

Senior Software Engineer – PHP / Laravel

Location
Ipswich, England, United Kingdom
using PHP and Laravel* Experience independently designing and delivering individual features or smaller software solutions* Experience working with modern frontend frameworks or libraries, ideally React* Experience working with relational databases such as MySQL* Strong understanding of object-oriented programming, software design patterns and testing* Experience using Git-based source control … Application Developer/PHP Software Engineer/Laravel Software Engineer/Backend Software Engineer/Full Stack Software Engineer/PHP/Laravel/React/MySQL/Git/JavaScript/SQL/REST APIs/Automated Testing/Object-Oriented Programming/Message Queues/Event-Driven Architecture ...

AI & Automation Developer

Hiring Organisation
Time Recruitment Solutions Ltd
Location
Manchester, United Kingdom
Employment Type
Permanent
Salary
£40000 - £60000/annum
maintain, and improve AI-driven business processes and automation solutions. Translate operational requirements into scalable and reliable software applications. Develop across multiple technologies including React, TypeScript, Python, Node.js, SQL Server, APIs, and desktop applications. Build and maintain integrations with third-party platforms using REST APIs and webhooks. Develop and support … levels. Ability to manage projects independently from requirements gathering through to deployment. Desirable Experience Experience with any of the following would be advantageous: React & TypeScript Python (FastAPI, Flask or similar) Node.js Electron or desktop application development SQL Server optimisation and performance tuning Workflow automation platforms such as n8n CRM integrations ...

Principal Software Engineer - Full Stack - AI

Location
York and North Yorkshire, England, United Kingdom
tool‐calling capabilities, and multi‐agent coordination. Full-Stack Engineering: Drive best practices across our full stack, guiding the development of responsive frontend applications (React/TypeScript) and robust, scalable backend services (Python, Java, Kotlin, or Node.js). LLM Observability & Reliability: Establish robust LLM observability, evaluations, and caching, implementing latency … deploying, and scaling agentic AI workflows, tool integrations, and GenAI features in production environments. Full-Stack Expertise: High proficiency in modern frontend frameworks (specifically React and TypeScript) and robust backend development languages (Python, Java/Kotlin, or Node.js). GenAI & MCP Knowledge: Deep understanding of LLM APIs, prompt engineering, agentic ...

Senior AI Engineer - Hybrid

Hiring Organisation
Genesis10
Location
Columbus, Ohio, United States
Employment Type
Permanent
Salary
USD Hourly
application architecture, integration patterns, APIs, and software design principles Experience developing Java REST APIs and services with Spring Boot and working knowledge of React.js or comparable front-end technologies Experience with secure API integrations and OAuth 2.0/OpenID Connect authorization patterns Understanding of the software development lifecycle, CI/… agent communication Frameworks: Google ADK, Spring AI, LangChain, LangChain4j, or comparable AI/LLM integration libraries Application Development: Java, Spring Boot, REST APIs, React.js, microservices, and cloud-native application patterns Security and Governance: OAuth 2.0, OpenID Connect, service accounts, delegated access, model governance, GCP Model Armor, privacy, responsible ...

Full-stack Developer

Location
Cardiff, Wales, United Kingdom
from planning and build through to launch and ongoing improvement. The work covers everything from WordPress and Craft CMS sites to Shopify stores and React builds, so there’s plenty of variety, but the constant is that you’ll see your work through properly. We’re looking for someone … technical matters to clients or non-technical team members. Nice to have for the role Experience with modern frameworks and tools such as Laravel, React, Vue or Node.js. Experience with cloud hosting platforms such as AWS, Azure or DigitalOcean. Familiarity with CI/CD pipelines and containerisation tools such ...

Fullstack Senior Software Engineer (TypeScript, C#, AWS) 12 mnth Maternity Cover

Location
City Of London, England, United Kingdom
solve across a dual-stack C# and TypeScript backend, being intentional about choosing the right tool for the job. Implement microfrontend web applications in React and TypeScript, with an eye for component design and the UX implications of what you build. Take end-to-end ownership of features from early … Technology Stack We believe in using the right tool for the job. Our current stack includes: Backend: TypeScript, Node.js, C#, .NET Frontend: TypeScript, React Cloud & Infrastructure: AWS (ECS, Lambda, SQS, DocumentDB, DynamoDB), Terraform, SST (Infrastructure as Code) Architecture: Microservices, Microfrontends, Event-driven architecture What You Need to Be Successful ...

Software Engineer II - SMS International

Hiring Organisation
Klaviyo
Location
Greater London, United Kingdom
Employment Type
Full Time
Salary
68000 to 102000 GBP Annually
performance optimization and continuous development of our Mobile Marketing Channels (SMS, Push Notifications, In App Messages, WhatsApp and RCS), Mobile SDKs (iOS, Android and React Native). While Email was how Klaviyo began, Mobile messaging is truly the way of the future. The SMS International team within Mobile Platforms … scale them successfully to serve our customers. Technologies we use (not exhaustive): Claude Code, with other LLM tools also available Python, Django, Go, React, RabbitMQ, Celery, MySQL, DynamoDB, Elasticache, Redis Amazon Web Services (EC2, RDS, Aurora, SQS etc.), Terraform, Kubernetes, Splunk, Buildkite, Grafana, and other modern DevOps tools What ...

Senior II Full-Stack Engineer (back-end heavy)

Location
Greater London, England, United Kingdom
matters for millions of people, every day. MEET THE TEAM! Our team builds scalable, resilient products using Python/Django on the backend and React on the frontend, all with one goal in mind: creating a smooth, meaningful experience for our learners and tutors. We're proudly tech-agnostic, great … Django, driving architectural decisions, creating new services, and owning critical integrations that support Preply's growth; UI Development: Develop and evolve frontend experiences in React/Typescript, contributing to experimentation frameworks and helping establish frontend engineering best practices; Implementation & Ownership: Lead complex initiatives from discovery through deployment, taking ownership ...

Senior Software Engineer (Full Stack)

Location
Farnborough, England, United Kingdom
Software Development Strategy. Contribute to full‐stack delivery, including: Backend services and REST APIs implemented in Java; Modern single‐page applications implemented using React/TypeScript or equivalent frameworks. Make technical decisions within assigned scope, aligning with agreed architectural direction and escalating broader decisions where appropriate. Apply strong software engineering … using: Java (Java 8 and modern Java versions such as 17 and 21) REST API design and implementation Modern SPA development experience (required) using React and TypeScript, Angular, or Vue. Strong understanding of design patterns and a solid, structured approach to software development. Proven experience delivering complex changes in production ...

Software Engineer

Location
Greater London, England, United Kingdom
implementation with a strong sense of usability and design. Frontend Development Create dynamic, reliable and polished user interfaces. Build and maintain frontend features using React, Typescript, NextJS and Tailwind CSS. Develop reusable components and scalable frontend patterns. Ensure product interfaces are responsive, accessible and easy to use. Backend and Platform … cloud-based infrastructure. You have experience building workflow‐driven or configurable software platforms. You have worked on products used intensively by power users. Frontend: React, Typescript, NextJS, Tailwind CSS Backend: Typescript running on AWS and Supabase Other tools: Git, Docker, Openrouter, WorkOS, Fly IO Our Values Integrity: You act with ...

Senior Full-Stack Engineer - AI Cost Visibility

Location
United Kingdom
this product end-to-end - from the Go services that ingest and model AI spend, through the APIs that expose it, to the React interfaces where FinOps practitioners and platform engineers make decisions. This is a young product in a category being defined right now. You'll shape … production Strong Go for backend services - APIs, data processing, and the operational realities of running them Strong TypeScript and modern React, with a good eye for how data should be presented Comfortable across the stack. You may lean backend or lean frontend, but you can own a feature from ...

Java Developer

Hiring Organisation
scrumconnect ltd
Location
London, United Kingdom
Employment Type
Permanent
Salary
GBP 70,000 Annual
Java Developer Location: London Contract Type: Permanent, Full-Time Salary: Up to £70,000 per annum, plus benefits Security Clearance: SC cleared or SC eligible (candidates must hold SC clearance or be eligible to obtain ...

SVP - GenAI Full-Stack Engineer Lead

Location
Greater London, England, United Kingdom
Engineer the future of global finance. At Citi, our Tech team doesn’t just support finance – we are helping to redefine it. Every day, $5 trillion crosses through our network. We do business in 180+ ...

Software Engineer 3

Location
Grimsby, England, United Kingdom
Putting the ‘i’ into British Innovation. Putting the ‘i’ into Inventing the Future. Putting the ‘i’ into Inspiring Change. myenergi is a growing global clean‐tech manufacturer dedicated to removing the barriers to a greener ...

Full-Stack Engineer

Location
Cambridge, England, United Kingdom
About the Role As a Full-Stack Engineer working on Octopart.com, you will be responsible for the design and maintenance of the user-facing features and interfaces, including Part Searching and Exploration. You will also ...

SVP - GenAI Full-Stack Engineer Lead

Hiring Organisation
Citigroup
Location
London, UK
Employment Type
Full-time
Job ID: 99038764240Posted: 2026-08-21Location: London, England, United KingdomCategory: Technology, Applications Development, ProfessionalCompany: CitiEngineer the future of global finance. At Citi, our Tech team doesn't just support finance – we are helping to ...

Senior Software Engineer

Hiring Organisation
Anson Mccade
Location
Plymouth, Devon, South West, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£70,000
Senior Software Engineer Location: Plymouth Hybrid Salary: £50,000 £70,000 We are seeking an experienced Full Stack Software Engineer with strong Java expertise to join a leading technology and professional services organisation, working on ...

Senior Software Engineer

Hiring Organisation
Anson Mccade
Location
Cheltenham, Gloucestershire, South West, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£70,000
Senior Software Engineer Location: Cheltenham Hybrid Salary: £50,000 £70,000 We are seeking an experienced Full Stack Software Engineer with strong Java expertise to join a leading technology and professional services organisation, working on ...

Senior Software Engineer

Hiring Organisation
Anson Mccade
Location
Manchester, North West, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£70,000
Senior Software Engineer Location: Manchester Hybrid Salary: £50,000 £70,000 We are seeking an experienced Full Stack Software Engineer with strong Java expertise to join a leading technology and professional services organisation, working on ...

Senior Software Engineer

Hiring Organisation
Anson Mccade
Location
Bristol, Avon, South West, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£70,000
Senior Software Engineer Location: Bristol Hybrid Salary: £50,000 £70,000 We are seeking an experienced Full Stack Software Engineer with strong Java expertise to join a leading technology and professional services organisation, working on ...

DevOps Engineer eDV

Hiring Organisation
Bulb Resourcing
Location
Cheltenham, Gloucestershire, South West, United Kingdom
Employment Type
Permanent
Salary
£80,000
eDV Cleared DevOps Engineer Are you an experienced DevOps Engineer looking to impact large-scale public sector digital services? On behalf of a leading public sector digital transformation consultancy, Bulb Resourcing is seeking a skilled ...

Front End Developer

Location
Telford, England, United Kingdom
IR35 Status: umbrella Job Description Minimum requirements Strong frontend fundamentals: semantic HTML, modern CSS and JavaScript, including responsive and accessible development. Commercial experience with React and TypeScript. Experience with a modern full-stack React framework, specifically Remix or React Router v7+. Practical server-side rendering experience, including loaders/actions … code-review processes. Accessibility to WCAG 2.2 AA, including semantic HTML, keyboard navigation, screen-reader testing and automated accessibility checks. Ideal additional experience React Router framework mode, including data APIs, nested routes, form actions and streaming SSR. Node.js and Express, particularly where the frontend includes a server or backend ...