2,301 to 2,325 of 2,440 TypeScript Jobs

Sierra Software Engineer New Grad, Agent 2027 | London | £120k–£140k

Location
Greater London, England, United Kingdom
site. Recent team projects on the posting include churn agents for telecom and media, troubleshooting flows, and voice models wired into enterprise systems. React, TypeScript, Go, and prior LLM production work are listed as extras, not gates. Eligibility/Key Requirements New grad for 2027, able to work … with talking to customers Clear writing and speaking for technical and non-technical people Preferred: production LLM or agent work, evals, RAG, React, TypeScript, or Go Compiled from the official posting; verify details on the employer site before applying. #J-18808-Ljbffr ...

Backend Engineer

Hiring Organisation
Method-Resourcing
Location
Hounslow, South East, United Kingdom
Employment Type
Permanent Contract, On-site
Salary
£80,000
Backend Engineer | Kwiff | Node.js | TypeScript | AWS Why join Kwiff? kwiff is one of the fastest-growing businesses in the sports betting space. They've built their own proprietary platform and are known for taking a technology-first approach to disrupting the market. The business has seen significant growth since … helping to build and improve services that need to be: Highly scalable Reliable Low latency Resilient under pressure The stack includes: Node.js (essential) TypeScript PostgreSQL Redis AWS Interestingly, they're less concerned about deep AWS expertise because much of the infrastructure is abstracted away. What they really care about ...

Full Stack QA Engineer

Location
City Of London, England, United Kingdom
working on: Designing and executing test plans across front-end, back-end, and integration layers Building and maintaining automation frameworks using Playwright and TypeScript Testing on Linux environments and working with command-line tooling Validating trading workflows, order flows, and end-to-end lifecycle behaviour Collaborating with developers … pipelines and quality-driven engineering practices What we're looking for: Strong experience in both manual and automation testing Solid knowledge of Playwright , TypeScript , and modern QA tooling Comfortable working in Linux environments Experience testing financial or trading systems is highly advantageous Understanding of the trading lifecycle (order entry ...

Full-Stack Engineer London

Location
Greater London, England, United Kingdom
outsized ownership and influence over our technical direction. What You'll Do Build and ship features across our web platform (React/Next.js, Node.js, TypeScript) Design and maintain APIs, database schemas, and backend services Integrate blockchain-based authentication and ownership verification systems Develop and deploy AI/ML features … help define our engineering culture from the ground up Requirements 4+ years of full-stack development experience with modern web technologies Strong proficiency in TypeScript, React/Next.js, and Node.js Experience with relational and non-relational databases Ability to work autonomously and ship quickly in an early-stage environment ...

Senior Product Engineer - On-Site - London - Octopus by RTG

Location
Greater London, England, United Kingdom
when to override them, and have real opinions about where they help and where they get in the way. Strong technical depth in: Strong TypeScript and React. Comfortable end-to-end. Building products where AI is in the critical path. Modern web tooling. Node, Postgres. Nice to have Experience … with Cloudflare Workers, Hono, or Drizzle. Experience in regulated industries: fintech, healthtech, legaltech. The Stack React and TypeScript on the frontend. A Hono API on Cloudflare Workers. Drizzle and Postgres on the data layer. #J-18808-Ljbffr ...

Front-End Engineer (Contract)

Location
United Kingdom
Build and evolve 2-3 front-end applications for web and/or desktop. Develop data-rich and visually engaging interfaces using JavaScript/TypeScript and React. Help shape the front-end architecture, with architectural guidance available while owning the detail and implementation. Integrate applications with backend services … based application development. Work closely with the wider team to deliver high-quality, production-ready applications. KEY REQUIREMENTS Strong commercial experience with JavaScript or TypeScript . Must have solid skills in React Strong UI/front-end development knowledge. Experience building and shipping production applications. Experience with data visualisation ...

Product Engineer

Hiring Organisation
Stratos Technologies
Location
London, England, United Kingdom
into reusable product , working with FDEs and Commercial Product Managers on what keeps coming up across clients Build front ends, APIs and agents in TypeScript and Python, on Palantir Foundry and our own services Own what you ship , including how it's tested, deployed and monitored Improve the product … users and watching how features get used You might be a fit if you Have 2+ years building and shipping production software Write strong TypeScript (React or similar) and Python Care about the user and can turn messy feedback into a clean feature Like owning a feature from idea ...

Staff Software Engineer

Location
Greater London, England, United Kingdom
Software Engineer — AI/TypeScript/Rust Up to £200,000+ Profitable Startup Eight figure ARR Location: Hoxton, London — five days per week in the office. We’re partnering with an AI startup building software to help businesses make better financial and strategic decisions. Their first product brings … looking for a Software Engineer to take ownership of features across the product, working within a small, highly technical team. The stack is primarily TypeScript , with Rust used for performance-critical components. What you’ll be doing Own features end-to-end, spanning Rust services, backend systems, and frontend ...

SC Cleared Cloud Security Engineer

Location
Greater London, England, United Kingdom
clear focus on cloud security and identity Strong production experience with Terraform, including reusable module design and state management Hands-on Python and TypeScript experience Strong GitHub and GitHub Actions experience, including security tooling within pipelines Experience with cloud security controls and secure-by-design principlesExperience implementing security controls … address security findings identified through CI/CD security tooling Implement secrets and key management in line with security policies Develop Python and TypeScript automation and tooling to support vulnerability management and security control evidence collection Produce security control evidence suitable for assurance activities such as CAF, GovAssure ...

Mid-weight Quality Engineer Analyst

Location
Greater London, England, United Kingdom
role, but manual testing remains essential for scenarios less suited to automation. You will be able to write code to a good standard in TypeScript, contributing to the development and execution of scalable automated test suites. You will be a dependable and collaborative member of the QE team, confident … validation. Automated test execution and regression coverage. Defect investigation, reporting, and prioritisation. Lead the design, development, and maintenance of automated test suites (Written in TypeScript). Take accountability for ensuring quality standards are upheld across functional, UX, performance, and platform-specific requirements. Produce and maintain high-quality documentation, including ...

Developer Relations Engineer (London, UK)

Location
Greater London, England, United Kingdom
sharing your knowledge-You create content that makes people want to open their code editor-You're equally comfortable writing a video script and TypeScript-You're energized by community whether it's on Discord, Twitter, YouTube, or in person-You're self-directed, organized, and excited to contribute … person DevRel video shoots, attend local events, and be an active presence in the London tech ecosystem.-Strong engineering skills, especially with JavaScript or TypeScript, Postgres, and modern frontend frameworks (React, Svelte, Vue, etc.)-Experience creating technical content (written or video)-Comfortable representing a product publicly (on camera ...

Lead Software Engineer - React

Location
Greater London, England, United Kingdom
clients and business partners around the world. Job responsibilities Significant contributions to designing and building scalable and performant front-end solutions written in TypeScript using React Working across B2C and B2B features Advocate for and encourage high standards and best practices to maintain high code quality. Providing constructive … process. Required qualifications, capabilities and skills Formal training or certification on software engineering concepts and proficient advanced experience Technical: Highly competent at React with TypeScript, with a strong engineering-first mindset, an ability to solve complex problems elegantly with an emphasis on scalability and performance. Adaptability: Thrive ...

Senior Product Engineer

Location
Greater London, England, United Kingdom
both customer-facing products and internal tools, including consumer-facing AI features shipped into production Build and maintain responsive, performant web applications using React, TypeScript, Next.js, and modern front-end practices Collaborate closely with our backend and mobile engineers to design APIs and ensure smooth data integration, including with … product direction and help shape the future of clean energy tech Qualifications and Experience 5+ years of hands-on experience developing web applications with TypeScript, React, HTML, CSS, and Next.js A track record of owning and shipping consumer-facing products, with a portfolio or examples that show genuine attention ...

JUNIOR DATA SCIENTIST

Location
Manchester, England, United Kingdom
focus on what you do best, while still providing support from the wider team. Modern tech stack: Including Python, Node JS/Typescript, PostgreSQL, DuckDB and Rust. Colleagues instead of customers: Everything you build will be used by people sitting next to you. High-performing, friendly team: Work alongside … scratch. Ideally this should be demonstrated through passion projects or work experience beyond coursework. Strong modelling and analysis skills using Python, SQL and backend Typescript (or two of the three and the ability to very quickly upskill with targeted support). Excellent, practical statistical/mathematical knowledge. The ability ...

Blockchain Payments Lead Engineer

Location
Greater London, England, United Kingdom
Work closely with Product, Mobile, Compliance, Risk, and Finance teams, driving features from initial concept through production deployment and iteration. Stack Languages: Rust, Go, TypeScript/Node, Python Messaging: Kafka/Redpanda, NATS API/IPC: gRPC/REST Infra: AWS (EKS, RDS, KMS), Terraform Requirements … latency distributed systems, payments, or fintech risk platforms. Language Fluency: Fluent in one or more systems languages (Rust, Go), or strong systems chops in TypeScript/Node/Python. Database Mastery: Expert‐level knowledge of Postgres (transactions, indexing, locking), with familiarity in Redis and event/OLAP stores (Kafka ...

Senior Product Engineer - Pensions and Spend

Location
Greater London, England, United Kingdom
Investments stream, integrating with external pension and savings providers as well as payment and card infrastructure (Stripe) Contribute to frontend code (React + TypeScript) when a feature calls for it Join client calls where it helps you understand or explain a problem, and proactively shape the roadmap rather than … Investments team works as it grows What we're looking for 6+ years building backend systems in production comfortable picking up frontend (React/TypeScript) when needed Experience designing and maintaining integrations with third‐party APIs Strong understanding of data modelling, event-driven patterns, and building for correctness ...

Frontier Engineer (Deployments)

Location
Greater London, England, United Kingdom
writing data pipelines, creating custom backend services, building new UI components and installing and configuring hardware. We primarily build in Python, Rust and Typescript on Linux, but this is flexible, as we aim to choose the right tool for the job. While this is a hybrid role, we believe … Project Management and/or Team Leadership skills. Machine Learning and/or Data Science skills. Experience building and deploying web frontends, ideally in Typescript + React. Experience building and deploying backend services. Familiarity with different software deployment platforms and technologies (such as cloud, bare metal, embedded, containerisation, virtualisation ...

Full-stack Engineer, Product

Location
Greater London, England, United Kingdom
equivalent in the form of experience 4+ years building customer-facing products, including at least one you shipped from zero to real users Strong TypeScript and React, and comfort across the stack: Node or Python services, APIs, Postgres and production debugging Product taste: you care about UX, speed … portfolio of shipped interfaces or design work Founding or early engineer at a startup, or equivalent ownership inside a larger company Our stack TypeScript, React, Python, Postgres, LLM and generative media APIs, PostHog, Sentry We encourage you to apply even if your experience doesn't match every line above ...

Senior Frontend Web Engineer

Location
Newcastle upon Tyne, England, United Kingdom
lead feature development, drive technical improvements, and help navigate an ongoing, multi-year migration from a legacy Polymer application to a modern React and TypeScript architecture. About 90% or more of your work will focus on their main user-facing application, alongside occasional contributions to our internal admin panel … ability to collaborate smoothly across engineering squads. UK Work Authorization: Pre-existing full right to work in the UK. Desirable (Nice-to-Have) React & TypeScript: Direct, hands-on experience with React and TypeScript. Legacy Migrations: Experience migrating legacy frameworks (e.g., Polymer) to modern frontend stacks. Design Systems: Experience working ...

Software Product Engineer

Location
Greater London, England, United Kingdom
experience in at least one systems-oriented language such as Rust or C++, plus experience with web or application technologies such as React, TypeScript or similar. Depth in every technology is not required. Learning agility: Evidence that you can become productive in unfamiliar technologies and are motivated by working … resulting code. Foundations: Strong software engineering fundamentals demonstrated through professional experience, education or equivalent practical experience. Nice to have Frontend depth: Experience with React, TypeScript, Tailwind CSS or desktop/web application development. Systems and devices: Experience with Rust, C++, embedded or device-adjacent software, SDKs or hardware integration. ...

Principal Architect – AI

Location
Greater London, England, United Kingdom
platforms for long-running agentic workflow systems, including AI gateways and supporting infrastructure services. Design Docker-based services using Linux container environments, Python, FastAPI, TypeScript, MCP/FastMCP, OpenAI and AWS Bedrock. Apply secure boundaries around credentials, service access, tool invocation and human-in-the-loop operation … operating complex software platforms, Linux-based systems, distributed services, APIs and integrations. Strong, current hands-on experience with Docker/containerised environments, Python, FastAPI, TypeScript, and AI-specific tooling such as MCP/FastMCP, OpenAI APIs and AWS Bedrock. Practical experience building or integrating AI gateways, agentic workflow systems ...

Game Developer

Location
Greater London, England, United Kingdom
Improve the creator tooling and debugging workflow that content producers and designers use every day Our stack includes Lua, C/C++ (ESP-IDF), TypeScript, React, Express, Postgres, and Python. About You You have shipped games or interactive experiences You are fluent in at least one game engine … content for children Basic audio production skills: editing and mixing Experience with Lua, or with embedding a scripting runtime in C/C++ or TypeScript The Team We’re a team of builders who love creatively solving problems and crafting experiences that bring joy to families. People ...

Product Engineer (x4)

Location
Greater London, England, United Kingdom
what you build and what moves the business is short and real: closing deals, driving adoption, unlocking upsell, securing renewals. The stack is Go, TypeScript with React and Next.js, Postgres, Kafka, Redis, and BigQuery, deployed on AWS and GCP with AI features built on Anthropic, OpenAI, Gemini, and Vertex … write well, explain technical decisions to non-technical teammates, and give and receive feedback directly. Production experience in at least one of Go, TypeScript/React, or cloud infrastructure on AWS/GCP, and willingness to learn the rest. What we offer Claude Team, Cursor, and a budget ...

Software Engineer (Autonomous Agents)

Location
Greater London, England, United Kingdom
agents to life: Build integrations between Kraken, Model Context Protocol (MCP) interfaces and our AI agent setup, using Python on the Kraken side and TypeScript on the agent side. Build once, reuse everywhere: Spot patterns across customer journeys and client needs, and turn them into reusable, client-agnostic components … engineering: You have shipped and supported production software, and you’re comfortable with testing, code review and working in a team codebase. Python and TypeScript: You write clean, maintainable code in both and are happy moving between tools and environments. Problem-first thinking: You take time to understand ...

Principal AI Engineer - Context - Agents and Context

Location
United Kingdom
scientists, backend engineers, product, and UX, and your work will show up directly in what customers build on top of Elastic. The codebase is TypeScript and we build it in the open, so you'll be shipping code, designs and discussions in public alongside the rest of the Elastic … evolving data models, and the judgement that comes with maintaining external contracts as a product changes. Strong backend engineering skills in either Python or TypeScript: APIs, stateful workflows, data pipelines and production services. Comfort working with data scientists, engineers, and product managers as peers, translating between measurement and shipping ...