24 of 24 Permanent TypeScript Jobs in Leicestershire

You’ll Do: As a Senior Software Engineer, you’ll be a key part of our agile development team, focused on building and maintaining complex UI systems using React, TypeScript, and Electron. You’ll work closely with developers, testers, and product managers to deliver robust, high-performance features. This role demands deep technical understanding of JavaScript and its ecosystem. … standards of testing, documentation, and continuous improvement. Basic Requirements Required: Strong experience as a Senior Software Engineer or equivalent role Deep understanding of JavaScript fundamentals Expertise in React and TypeScript Experience with ElectronJS and Node.js Solid grasp of modern CSS (including SASS) and frontend build tooling Familiarity with Git workflows, pull requests, Agile processes, and CI/CD pipelines More ❯

.NET Developer - Leading E-Book Firm - Leicester (Tech stack: .NET Developer, .NET 9, ASP.NET, C#, React, Angular 19, Microservices, Vue.js, TypeScript, Azure, Web API 2, Agile, Azure SQL, Programmer, Full Stack Engineer, Architect, .NET Developer) Our client are a leading e-book firm who are on a mission to build the best reading experience, one that is both communal … of: .NET, .NET Core/ASP.NET MVC, C# and Azure SQL. Our client can provide you with industry recognized training in: .NET 9, JavaScript, React, Angular 19, Microservices, Vue.js, TypeScript, Azure, AWS, Web API 2, Entity Framework, Node.js, Elasticsearch, Agile, TDD, BDD, Scrum, Kanban and MongoDB. This is a great opportunity to work alongside smart, driven people who will More ❯

sectors. Budget: £55k + full benefits + fully remote Primary requirements: Must be eligible for SC Clearance Backend Development: Experience in building microservices using either Python with FastAPI, or TypeScript with Express or equivalent Frontend Development: Experience in building React applications using TypeScript, leveraging frameworks such as Next.js or Vite. LLM experience: Practical experience with Large Language Models More ❯

end and back-end technologies , a solid understanding of Object-Oriented Design , and a passion for learning and embracing new tech. Languages : ? Ruby-on-Rails, Java, Python, C# ? VueJs, Typescript/Angular/React Cloud : ? Amazon Web Services (AWS) Databases : Additional Tools & Frameworks : ? GraphQL ? REST APIs ? Software Design Patterns – TDD, DDD ? Agile methodologies: Scrum and Kanban Key Responsibilities : Full More ❯

Good understanding of asynchronous programming You take ownership and responsibility for your work Strong knowledge of NodeJS and have experience building/maintaining a Node backend Strong knowledge of Typescript or another typed programming language Good React knowledge Good understanding of MySQL or a similar relational database Experience using Elasticsearch or a similar NoSQL database Experience working with messaging More ❯

contribution and know how to strike a balance between guiding the big picture and refining the detail. You’ll bring experience in: Leading technical delivery within backend software projects TypeScript or Node.js development, or similar backend technologies Designing and deploying services in a modern cloud environment Working with databases (SQL or NoSQL) and scalable system design Agile delivery and More ❯

Social network you want to login/join with: Senior Software Engineer - AI Product Company - FULLY REMOTE IN UK - £125k - TypeScript/Python/React/AWS/GenAI, leicester col-narrow-left Client: Opus Recruitment Solutions Location: Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 6 Posted: 26.06.2025 Expiry Date: 10.08.2025 col-wide … delivery and mentoring other engineers Building greenfield features that solve real-world problems Driving quality and innovation across the engineering team What They’re Looking For: Deep experience with TypeScript , React , Python , AWS , PostgreSQL , and an interest in AI (GenAI a plus!) Bonus points for experience with other backend languages like Go , Elixir , Clojure , Ruby , C++ , Haskell , Scala , etc More ❯

ML lifecycle, from data collection and preprocessing to model evaluation, deployment, and monitoring. Full-Stack Integration : Develop APIs and integrate ML models into web applications using FastAPI, Flask, React, TypeScript, and Node.js. Vector Databases & Search : Implement embeddings and retrieval mechanisms using Pinecone, Weaviate, FAISS, Milvus, ChromaDB, or OpenSearch. Required skills & experience: 3-5+ years in machine learning and … Proficient in Python, PyTorch or TensorFlow or Hugging Face Transformers Experience with RAG, LLM fine-tuning, and expertise in AWS and cloud-native AI deployments. Full-stack experience (React, TypeScript, Node.js) and API development. Familiarity with vector search and multi-agent orchestration Apply now to join this high growth and award-winning organisation with the opportunity to be part More ❯

ML lifecycle, from data collection and preprocessing to model evaluation, deployment, and monitoring. Full-Stack Integration : Develop APIs and integrate ML models into web applications using FastAPI, Flask, React, TypeScript, and Node.js. Vector Databases & Search : Implement embeddings and retrieval mechanisms using Pinecone, Weaviate, FAISS, Milvus, ChromaDB, or OpenSearch. Required skills & experience: 3-5+ years in machine learning and … Proficient in Python, PyTorch or TensorFlow or Hugging Face Transformers Experience with RAG, LLM fine-tuning, and expertise in AWS and cloud-native AI deployments. Full-stack experience (React, TypeScript, Node.js) and API development. Familiarity with vector search and multi-agent orchestration Apply now to join this high growth and award-winning organisation with the opportunity to be part More ❯

Senior Software Engineer - TS, React, Next.js, Node Up to £110k Would you like the opportunity to work for a fast-growing start-up, currently looking for several Senior Fullstack TypeScript Engineers? You will be joining a dynamic product team, where you will be building great software and diving into the world of AI. The company is committed to providing … teams. You will work within a unified codebase that drives their B2B software and custom AI. As a Senior Software Engineer, you will be working across their stack using TypeScript, React, Next.js, Node.js, and LLMs. Core requirements: Commercial experience with their stack TypeScript, React, Next.js and Node.js Strong expertise in designing and maintaining scalable, high-performance web applications … AI models like ChatGPT A good understanding of databases Experience working on B2B software platforms with multiple users would be a bonus. If you’re a Senior Software Engineer (TypeScript) who enjoys the idea of working in a fast-paced start-up, please apply. Please note that if you are NOT a passport holder of the country for the More ❯

experience working at a ticketing, music or event related platform company. Places like Ticketmaster, Spotify, Stubhub, Eventbrite etc. The Role: You'll help build production-ready, scalable applications using TypeScript, React and Node. You'll also work with AI services (Python experience is a bonus) and be involved across the full development lifecycle, including deployment, data, and testing pipelines. … Marketing, Sales and a hands-on CTO and Founder leading the Engineering. This role will be the first Dev team member. What They’re Looking For: Strong experience with TypeScript stack, AI services. Start-up scaling experience (e.g., being part of a product that has gone from early stage to Series A/B). Location & Salary: Either UK More ❯

working on both front-end and back-end development. This is a FULLY REMOTE role with no office expectations. You need to be comfortable working remotely and independently. React.js Typescript Python Django API Development AWS Nice to have: This role involves a 2-stage interview process: a 30-minute call with their CTO, followed by a 90-minute technical More ❯

finance company and play a key role in shaping our cutting-edge products. What Youll Be Doing: Developing and maintaining applications using C#, .NET, and SQL Server Working with TypeScript/JavaScript to enhance front-end experiences Collaborating with cross-functional teams to drive product improvements Bonus: Experience with PHP is a plus! What Were Looking For: Strong experience … in C# and .NET development Proficiency in SQL Server for database management Front-end development skills with JavaScript/TypeScript Ability to work independently and thrive in a fully remote environment Experience in the finance sector is advantageous but not required Why Join Us? Fully remote working options available Work on exciting financial products in a growing and dynamic More ❯

the next phase of growth. The Role ? Early stage startup hire — huge ownership and autonomy Working closely with the founders to bring the product vision to life GO backend, TypeScript/React frontend - open to Node.js experience on Backend too React Native is a bonus Desired Skills ? GO React TypeScript/Node AWS This role is moving fast More ❯

top-tier Senior Engineers Enjoy full autonomy, freedom, and trust in a 100% remote setup Lucrative salary, bonus, and unlimited holiday What You’ll Bring Extensive experience with Node.js & TypeScript in large-scale microservices Solid knowledge of Kubernetes + Kafka or RabbitMQ Deep understanding of AWS and cloud architectures Comfortable working fully remote in a B2B capacity Apply to More ❯

Engineering Manager to join a cybersecurity business in a full time, permanent position that is fully remote. For this role you will be an SME in the NodeJS/Typescript space, working on elevating the team and implementing new features across the business. Open to anyone from a Principal/Tech Lead position looking to take the next step … coming from a product/start up background yourself with at least 8 years experience in the MERN space. Tech skills required: NodeJS/Express React/Javascript/Typescript AWS Experience of leading established and high-performing teams Keen interest in cyber security - desirable Understanding of LLM-based tools Interviews will be taking place soon so if you More ❯

gifting and rewards platform that empowers businesses to reward, support, and celebrate teams and clients with meaningful gifts, vouchers, and unique experiences. Responsibilities: Develop and maintain backend services using Typescript, Node, Fastify. Work on frontend components with React. Utilize cloud services to support platform scalability and reliability. Qualifications: Proficiency in Typescript, Node.js, React, and Fastify. Experience with cloud More ❯

lifecycle, from initial design and data structuring to advanced AI integration, ensuring robust, scalable, and high-performance solutions. Key Responsibilities: Design, build, and maintain web application features using Next.js, TypeScript, React and Node Contribute to and optimise their monorepo, which includes both B2B SaaS platforms and AI/LLM modules. Integrate and fine-tune commercially available LLMs (e.g., OpenAI … management. Implement multi-step LLM workflows using orchestration frameworks like LangChain. Design, optimise, and manage database architecture using MySQL. Develop and maintain type-safe RPC endpoints with tRPC and TypeScript for seamless front-end and back-end communication. Rapidly onboard to their modern TypeScript stack, ensuring high-velocity feature delivery. Required experience: Proven experience working within complex, unified … codebases that combine application logic with AI/LLM components. Expertise in modern web development with Next.js, tRPC, TypeScript, and Prisma. Strong understanding of database design and optimisation, particularly with MySQL. Hands-on experience integrating with AI models like ChatGPT or Gemini, including prompt crafting and API management. Familiarity with LangChain or similar orchestration tools for multi-step AI More ❯

Senior Full Stack Ruby Engineer - Tech For Good - Fully Remote Industry: Tech for Good (Sustainability) Location: Fully Remote with London base for those nearby Tech Stack: Ruby on Rails, TypeScript, React ??? Full Stack with backend lean The Company ? We're thrilled to partner with a dynamic sustainability startup that's making moves in the market. With a rapidly growing … CTO Able to crack out high quality code and solve complex problems Provide mentorship to more juniors members of the team Work on AI based solutions Ruby on Rails TypeScript React Familiar with LLMs They are willing to move quickly with this role, please apply now if interested. Senior Full Stack Ruby Engineer - Tech for Good - Fully Remote #J More ❯

is expected of candidates Make an application by clicking on the Apply button. What Youll Be Doing: Developing and maintaining applications using C#, .NET, and SQL Server Working with TypeScript/JavaScript to enhance front-end experiences Col... JBLK1_UKTJ More ❯

Experience working in a collaborative team but also demonstrable ability to work independently due to the remote nature of the role Web technologies experience (WASM, WebGL), as well as Typescript, Rust and V8 Ideally an undergraduate degree in a relevant STEM subject, such as Comp Sci Exposure to functional programming, pair programming and agile methodologies Some product knowledge within More ❯

Social network you want to login/join with: Senior Full-Stack Engineer - TypeScript + (AI and LLM Integration) - £110K, Remote UK, leicester col-narrow-left Client: Oliver Bernard Location: Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 6 Posted: 26.06.2025 Expiry Date: 10.08.2025 col-wide Job Description: A hugely exciting AI start-up … the full feature lifecycle, from design (including data structures) to AI integration, enhancing user experiences through advanced Large Language Models. Key Responsibilities Build and maintain web application features using TypeScript, React, Node + Next.js Contribute to and maintain a monorepo that includes both the B2B SaaS platform and AI/LLM modules Integrate and optimize commercially available LLMs (e.g. … pipeline management Implement multi-step LLM workflows using orchestration frameworks such as LangChain. Design and optimize the MySQL database Develop and maintain type-safe RPC endpoints using tRPC and TypeScript to ensure smooth frontend-backend communication Rapidly onboard to a modern TypeScript stack to support high-velocity feature development Required Qualifications Proven experience working in a unified codebase More ❯

Bernard Location: Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 8 Posted: 06.06.2025 Expiry Date: 21.07.2025 col-wide Job Description: Senior Full Stack Engineer - TypeScript, LLMs Fully Remote - UK based Oliver Bernard have partnered with a growing AI start-up who have recently secured another round of funding, and are now looking for talented … AI integrations. You'll be involved in the full feature lifecycle, from design and development to optimising AI-driven user experiences. Key Responsibilities: Develop and maintain web applications using TypeScript, React, Node and Next.js. Contribute to a monorepo encompassing B2B SaaS and AI modules. Integrate Large Language Models (LLMs) like OpenAI and Gemini through prompt engineering. Optimise MySQL databases … for performance and scalability. Build type-safe RPC endpoints with tRPC and TypeScript. Requirements: Experience with Next.js, tRPC, TypeScript, Prisma. Strong database skills ideally with MySQL. Hands-on experience integrating AI models (e.g., ChatGPT, Gemini). Familiarity with LangChain or similar orchestration tools. Fast learner, adaptable in high-paced environments. Preferred Skills: Experience deploying and fine-tuning custom AI More ❯

experienced Senior React Native Engineer for a 6-month contract. The role is outside of IR-35 and 100% remote. The ideal candidate will have experience with React Native, Typescript, and native app development. The selection process involves two stages: Take-home test Technical interview The rate is up to £450 per day. Please apply if you are interested More ❯