scripts (in Typescript) from scratch. Requirements 5+ years of experience in a QA engineering role, working on web or packaged software products. API Testing - Practical experience testing RESTful or GraphQL APIs, including working with JSON, HTTP requests/responses, status codes, headers, and API design principles. Automated Testing - Proficiency in at least one programming language (e.g., TypeScript, Ruby, Python) to More ❯
front-end workflows Solid knowledge of Docker (Kubernetes experience a plus) Experience shipping SaaS platforms end-to-end Strong communication and debugging skills Bonus if youve worked with: Kafka, GraphQL, GitHub Actions, Jenkins, or Golang. ?? Why Valent? Mission-led : Build tools that protect global information integrity. High impact : Direct involvement in a vital AI system used by governments and global More ❯
and learning. Requirements 5–6+ years of experience in full-stack development roles. Strong proficiency in JavaScript/TypeScript , React , NestJS , and MongoDB . Solid experience with API integration (GraphQL, REST, OAuth). Familiarity with infrastructure tools like Docker or cloud platforms (e.g., AWS, Vercel, or GCP). Comfortable working in dynamic startup environments with shifting priorities. Demonstrated ability to More ❯
Northern Ireland, United Kingdom Hybrid / WFH Options
Ocho
authority A pragmatic problem-solver who values collaboration, quality, and simplicity Nice to Have: Experience with design systems (Storybook, Figma tokens, etc.) Familiarity with back-end integration (REST/GraphQL APIs) Prior experience in mentoring, coaching, or managing other engineers Exposure to server-side rendering or edge rendering techniques Why Join? Remote-first culture across Northern Ireland — flexible working hours More ❯
London, England, United Kingdom Hybrid / WFH Options
JR United Kingdom
well-documented solutions within a containerised environment. Collaborate with software engineers, production support, and business users to ensure effective delivery. Support the development of high-quality APIs (REST and GraphQL) and integration with internal and third-party systems. Required Experience Strong Python programming skills, ideally within data engineering or integration-heavy environments. Solid experience building and orchestrating ETL pipelines. Good More ❯
side rendering and advanced frontend optimization techniques Knowledge of state management patterns and libraries (Redux, MobX, Zustand) Familiarity with frontend testing libraries (Jest, React Testing Library, Cypress) Experience with GraphQL and related tooling Understanding of streaming technologies and real-time communication protocols Experience with monorepo management and module federation Who You Are You're passionate about code quality, maintainability, and More ❯
in high-performance startups or enterprise AI environments. You have a sharp eye for UI/UX design and have built intuitive, AI-driven interfaces. You have experience with GraphQL, WebSockets, or real-time data streaming. You’ve contributed to open-source projects or have built developer tools for AI. Seniority level Seniority level Mid-Senior level Employment type Employment More ❯
London, England, United Kingdom Hybrid / WFH Options
Talent
Experience Strong commercial experience as a Ruby Developer, with a proven track record of delivering complex projects. Demonstrable strong experience working on APIs, including design, development, and integration (RESTful, GraphQL). Proficiency in Node.js for specific backend services and tooling. Solid understanding of JavaScript for front-end integration and broader development needs. Experience with relational databases (e.g., PostgreSQL, MySQL). More ❯
new and emerging technologies. Adds to team culture of diversity, equity, inclusion, and respect. Design, develop and maintain microservices using Kotlin or Java with Spring Boot. Build robust, scalable GraphQL APIs and backend components. Deploy, monitor and manage services in AWS, particularly EKS (Kubernetes). Write clean, well-documented, and testable code. Required qualifications, capabilities, and skills Formal training or More ❯
Symfony or Laravel) Strong understanding of modern architectural patterns (DDD, CQRS, Event Sourcing) Hands-on experience with Kubernetes and containerized deployments Solid experience designing and integrating APIs (REST or GraphQL) Experience with relational and non-relational databases Familiarity with CI/CD pipelines and automated testing Excellent problem-solving skills and a proactive mindset Excellent communication and teamwork skills, able More ❯
City of London, London, United Kingdom Hybrid / WFH Options
TRIFFT Loyalty
Symfony or Laravel) Strong understanding of modern architectural patterns (DDD, CQRS, Event Sourcing) Hands-on experience with Kubernetes and containerized deployments Solid experience designing and integrating APIs (REST or GraphQL) Experience with relational and non-relational databases Familiarity with CI/CD pipelines and automated testing Excellent problem-solving skills and a proactive mindset Excellent communication and teamwork skills, able More ❯
London, England, United Kingdom Hybrid / WFH Options
Influencer Ltd
will need: 5+ years of experience with Node.js Experience building Microservices architecture Working experience with React.js - confident enough to unblock problems Strong knowledge of Typescript Working experience with Postgres, GraphQL (Apollo Federation would be a plus) Experience in developing and scaling server applications in AWS ecosystem Excellent analytical and problem-solving skills Great team player with excellent communication skills and More ❯
to convey complex technical concepts and trade-offs to cross-functional stakeholders at all levels of the organization. Nice-to-Haves Professional background. A previous role using TypeScript, React, GraphQL, C#, MongoDB and/or AWS would be an asset. Adjacent languages, frameworks and services used at scale are also relevant experiences. IMU and GPS data processing experience. Our Role More ❯
London, England, United Kingdom Hybrid / WFH Options
Gravitee
about Gravitee DESIRED SKILLS - Additionally, these skills are not required, but preferable: Understanding of Event Driven Architectures and APIs Understanding of OAuth2 and OpenID Connect Knowledge of Kafka, gRPC, GraphQL Hands-on experience with LLMs or AI Agent frameworks or platforms AT GRAVITEE, YOU'LL GET... Excellent medical coverage to keep your body and mind healthy Pension or 401k program More ❯
and deliver end-to-end product functionality spanning experiment scheduling, automated image analysis, and remote operation of our devices. Develop and improve our frontend applications using TypeScript, React, and GraphQL to create intuitive interfaces for complex biological workflows. Build backend services that communicate with our hardware systems and ensure data integrity throughout the cell manufacturing process. If you've worked More ❯
Storybook (and Storybook testing) Playwright Contentful (or similar headless CMSs) Algolia Datadog (or similar monitoring tools, structuring logs, setting up monitors) GitHub actions HTTP (headers, status codes, payloads) Akamai GraphQL Infrastructure as code (e.g. Terraform) GCP Benefits: 33 days annual leave for full time employees (25 days holiday + 8 bank holidays) A day off to celebrate your birthday. Pension More ❯
Storybook (and Storybook testing) Playwright Contentful (or similar headless CMSs) Algolia Datadog (or similar monitoring tools, structuring logs, setting up monitors) GitHub actions HTTP (headers, status codes, payloads) Akamai GraphQL Infrastructure as code (e.g. Terraform) GCP Benefits: 33 days annual leave for full time employees (25 days holiday + 8 bank holidays) A day off to celebrate your birthday. Pension More ❯
to convey complex technical concepts and trade-offs to cross-functional stakeholders at all levels of the organization. Nice-to-Haves Professional background. A previous role using TypeScript, React, GraphQL, C#, React, MongoDB and/or AWS would be an asset. Adjacent languages, frameworks and services used at scale are also relevant experiences. IMU and GPS data processing experience. Our More ❯
London, England, United Kingdom Hybrid / WFH Options
ECA International
to lead on deliverables and work independently when needed. Desirable Experience (Nice To Have) Familiarity with accessibility and SEO best practices. Experience with technologies such as Node.js, PostgreSQL, Express, GraphQL, AWS, GitHub, Terraform. Exposure to mobile application development and multi-tenanted architectures. Passion for and experience with AI-driven development tools and building AI solutions. Skills And Behaviours Technical Expertise More ❯
Computer Science, Software Engineering, or equivalent. 10 - 15 years of full-stack coding experience, building modern cloud-native applications. Strong affinity with our tech stack of React, TypeScript, NodeJS, GraphQL, PHP, MySQL, AWS, and Kafka. Practical knowledge of modern API architecture, microservices, and event-driven design. Experience in writing automated tests is a strong plus. Proven track record of taking More ❯
high-performance, distributed systems at scale A strong understanding of modern dev practices like 12 Factor, CI/CD, and observability tools such as Datadog or Prometheus Exposure to GraphQL APIs and WebSockets for real-time interactions As part of our commitment to information security, all employees are expected to adhere to company security policies and procedures, participate in mandatory More ❯
HUG is excited to partner with an innovative healthtech startup to recruit a number of Senior Software Engineers to join their UK team. This dynamic company is driving impactful solutions in the healthcare industry, offering a collaborative and fast-paced More ❯
City of London, London, United Kingdom Hybrid / WFH Options
HUG
HUG is excited to partner with an innovative healthtech startup to recruit a number of Senior Software Engineers to join their UK team. This dynamic company is driving impactful solutions in the healthcare industry, offering a collaborative and fast-paced More ❯
Golang Software Backend Engineer Fully Remote/UK Working Hours A couple of Golang Software Backend Engineers are required for an exciting and innovative Software house company based in London and Hong Kong. The company operates at the forefront of More ❯
City of London, London, United Kingdom Hybrid / WFH Options
Venture Up
Golang Software Backend Engineer Fully Remote/UK Working Hours A couple of Golang Software Backend Engineers are required for an exciting and innovative Software house company based in London and Hong Kong. The company operates at the forefront of More ❯