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Hiring: Senior Ruby on Rails Developer (Remote - UK Based) Location: Anywhere in the UK (100% Remote) Job Type: Full-Time | Flexible Hours | Work-Life Balance Champions Why This Role Rocks:Ready to level up your dev career with a company that actually values innovation, autonomy, and continuous learning? Join a forward-thinking tech powerhouse where creativity meets cutting-edge code. You’ll be part of a passionate, remote-first team building impactful products — and yes, you’ll get Friday afternoons to work on your own passion projects. Plus, every team member gets a free Udemy license to keep those skills sharp and curiosity thriving. What You’ll Be Doing:As their next Full Stack Ruby on Rails wizard, you’ll: • Craft and maintain sleek web apps using Ruby and TypeScript, • Architect scalable, secure backend systems, • Collaborate with a cross-functional dream team to launch new features, • Tune performance for speed and scalability, • Debug like a boss and keep things running smoothly, • Manage MySQL databases with confidence, • Deploy and scale apps on AWS, • Proven experience as a Full Stack Developer (or similar), • Proficiency in Ruby and TypeScript, • Solid with Ubuntu, MySQL, and AWS, • Comfortable with front-end tech (HTML, CSS, JavaScript), • A sharp eye for detail and a problem-solving mindset, • Bringing AI into the business as part of a transformation project, • Experience with other languages/frameworks, • Familiarity with Docker, Kubernetes, CI/CD pipelines, • Competitive salary + bonus scheme, • Flexible working hours, • Career growth & learning opportunities, • Supportive, collaborative team culture, • Access to the latest tech and tools, • Free Udemy license for all your learning needs

Lead Software Engineer A fantastic opportunity for a Lead Software Engineer to join an innovative technology company developing advanced hardware and software systems. This is a highly hands-on role focused on software that directly interfaces with physical machines and equipment, rather than purely web-based application development. You will play a key role in designing, building and improving complex systems, while mentoring a small team of developers within a collaborative engineering environment. Location: Peterborough, Cambridgeshire. Ideally, on-site 5 days a week, although hybrid working may be considered for exceptional candidates Salary: £60,000 to £80,000 per annum + benefits Requirements for Lead Software Engineer: • Strong commercial experience in software engineering within a product-focused or systems-focused environment, • Strong JavaScript and TypeScript experience, • Experience with Angular for frontend development, • Backend TypeScript experience, ideally with NestJS or similar frameworks, • Experience designing and consuming RESTful APIs, • Experience developing software that interfaces with hardware, equipment or physical systems, • Strong debugging, problem-solving and software design skills, • Experience with Linux-based systems, • Database design and implementation experience, • Familiarity with event-driven architectures, • Ability to mentor and support more junior developers while remaining highly hands-on technically, • Excellent communication and collaboration skills Experience in the following is beneficial: • Raspberry Pi or similar platforms, • C++, • Python, • Embedded software development, • Mixed-language codebases, • UI/UX considerations for user-facing systems, • Automation systems, industrial technology, robotics, scientific equipment or hardware-integrated software environments Responsibilities for Lead Software Engineer: • Design, build and maintain frontend and backend software for advanced hardware-integrated systems, • Develop and enhance bespoke control software, • Work directly with hardware and equipment to diagnose and resolve complex system-level issues, • Carry out hands-on coding across multiple parts of the software stack, • Translate business and product requirements into technical solutions, • Support software release planning, delivery and technical documentation, • Contribute to software architecture, development standards and code quality improvements, • Mentor and support a small development team, • Collaborate closely with multidisciplinary engineering and R&D teams, • Help identify opportunities to improve development efficiency and technical processes What the role offers: • The opportunity to work on software that directly controls and interacts with physical systems and machinery, • A highly technical and hands-on engineering environment, • The chance to work across frontend, backend and hardware-integrated software systems, • A collaborative and innovation-focused culture, • Higher-contribution pension, • Minimum 24 days holiday, • Free on-site vehicle charging, • Free access to on-site gym facilities Applications: If you would like to apply for this unique Lead Software Engineer role, then please send your CV via the relevant links! We’re committed to creating an inclusive and accessible recruitment process. If you require reasonable adjustments for your application or during the review process, please highlight this by separately emailing . If this email address has been removed by the job board, full contact details are readily available on our website. Keywords: Lead Software Engineer / Senior Software Engineer / Technical Lead / Full Stack Developer / Software Developer / Systems Software Engineer / Product Software Engineer / Hardware Software Engineer / Automation Software Engineer / Embedded Software Engineer / Machine Software Engineer / JavaScript / TypeScript / Angular / NestJS / REST API / Linux / Raspberry Pi / Event-Driven Architecture / Databases / C++ / Python / Embedded Software / Hardware Integration / Automation / Robotics / Industrial Systems / Scientific Equipment / Computer Science / Software Engineering / Electronic Engineering / Engineering / Physics RedTech Recruitment Ltd focus on finding roles for Engineers and Scientists. Even if the above role isn’t of interest, please visit our website to see our other opportunities. We are an equal opportunity employer and value diversity at RedTech. We do not discriminate on the basis of race, religion, colour, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.

Hiring: Senior Ruby on Rails Developer (Remote - UK Based) Location: Anywhere in the UK (100% Remote) Job Type: Full-Time | Flexible Hours | Work-Life Balance Champions Why This Role Rocks: Ready to level up your dev career with a company that actually values innovation, autonomy, and continuous learning? Join a forward-thinking tech powerhouse where creativity meets cutting-edge code. You'll be part of a passionate, remote-first team building impactful products - and yes, you'll get Friday afternoons to work on your own passion projects. Plus, every team member gets a free Udemy license to keep those skills sharp and curiosity thriving. ️ What You'll Be Doing: As their next Full Stack Ruby on Rails wizard, you'll: Craft and maintain sleek web apps using Ruby and TypeScript Architect scalable, secure backend systems Collaborate with a cross-functional dream team to launch new features Tune performance for speed and scalability Debug like a boss and keep things running smoothly Manage MySQL databases with confidence Deploy and scale apps on AWS Stay ahead of the tech curve with the latest tools and trends What they are looking for: Proven experience as a Full Stack Developer (or similar) Proficiency in Ruby and TypeScript Solid with Ubuntu, MySQL, and AWS Comfortable with front-end tech (HTML, CSS, JavaScript) A sharp eye for detail and a problem-solving mindset Strong communicator and self-starter in a remote setup✨ Bonus Points For: Bringing AI into the business as part of a transformation project Experience with other languages/frameworks Familiarity with Docker, Kubernetes, CI/CD pipelines Agile/Scrum experience Perks & Benefits: Competitive salary + bonus scheme ️ Flexible working hours Career growth & learning opportunities Supportive, collaborative team culture ️ Access to the latest tech and tools Free Udemy license for all your learning needs Friday afternoons = your time to innovateNote: You must be based in the UK and have full rights to work without restrictions

Compensation: Competitive, based on location and experience .Location: UK (Hybrid – Office & Remote).Keepnet is an AI-driven SaaS platform experiencing strong, sustained growth in the UK with growing global momentum, helping organisations manage human cyber risk at scale.Keepnet runs autonomous

NET Developer (Azure) based in Sheffield to join a small engineering team. This role involves designing and implementing backend services using modern Microsoft technologies in a cloud-first environment.

Design, develop, and maintain backend applications using Java/JEE and related frameworks. Build backend components and services using Java‑based frameworks and languages. Collaborate with analysts, testers, architects, and fellow developers to deliver quality outcomes.

Senior Backend Java Developer – London.

Senior Typescript & AI Backend Developer. Emergn you will design and build intelligent backend systems and AI orchestration solutions, integrating enterprise platforms like SAP to deliver scalable, automated end-to-end processes for our clients. Design and develop robust TypeScript backend systems t

We are seeking a Backend Java Developer to design and deliver high‑quality applications using Java/JEE and modern web technologies. Build backend components and services using Java‑based frameworks and languages. Collaborate with analysts, testers, architects, and fellow developers to deliver qu

Information Tech Consultants is seeking a skilled Java Developer to join their onsite team in London, United Kingdom. The ideal candidate will have strong backend development experience with modern Java technologies such as Spring Boot and Hibernate.

As a senior Backend Developer, you will be a part of the team that works on the development and maintenance of the backend components of multiple services related to the platform. The Backend Development team is responsible for building all the API services and backend processes with the highest sec

Strong commercial experience as a Backend Developer (you can also have worked in a full stack role if you are particularly backend focussed). They’re looking to add a couple of Mid-Level Backend Developers to one of their core product teams. Mid-Level Backend Developer | C#,.

Contributing across backend, frontend, and cloud infrastructure depending on your strengths.

IT professions like software engineering, data science, business intelligence, and QA — no matter their prior experience.Our AI-driven and thoughtfully designed platform helps students build real skills and access meaningful career opportunities.We're passionate about making education accessible,

We are seeking a Backend Java Developer to design and deliver high‑quality applications using Java/JEE and modern web technologies. If you enjoy developing secure, reliable backend solutions and working closely with other technical teams, we’d love to hear from you. Design, develop, and maintain

You will contribute to building a developer ecosystem, focusing on scalable backend services and resilient systems, while collaborating closely with cross-functional teams. A financial technology company based in Greater London is seeking a Senior Backend Engineer to join their App Store & Ecosystem

Strong commercial experience as a backend developer using Python ideally within a start-up or scale up environment. Experience designing scalable and maintainable backend architectures. You will play a key role in designing, building, and scaling specific backend applications that support complex sc

We’re seeking a seasoned Backend Developer with a proven track record in building scalable and robust architectures, and an instinctive understanding of how to deliver seamless digital experiences. You will work closely with the game team and technical leads to create and explore new and exciting

This role entails mentoring junior developers and leading project delivery in a hybrid setting, where you will work one day in the office.

Zaizi is looking for a Senior Software Developer with solid technology skills, but who is also passionate about improving outcomes and the user experience. Demonstrable experience working in multi-disciplinary/DevOps teams which include product owner/manager, UX designers, UX researchers, Developers

Trayport is actively looking for a Software Developer to join our team for the design and development of our flagship data analytics platform where you will contribute to system architecture, aid colleagues to help coordinate our projects and review code too.

Corgi is an AI-powered insurance company designed for tech startups.The company has raised $108M and holds regulatory approval as a licensed carrier.The platform is built on Django, utilizes Stripe for payments, and features AI-driven underwriting.Corgi is currently scaling operations into the UK an

Our client is looking for experienced Senior Java Backend Engineers to join high-performing engineering squads working on modern, cloud-native platforms. They’re looking for strong backend engineers with deep technical expertise across event-driven systems, microservices, and scalable cloud archit

UserTesting is hiring a backend engineer to join their Developer Experience team in the United Kingdom. In this role, you'll build and maintain backend services and internal tools that support engineering workflows, improve CI/CD systems, and help reduce friction in the development lifecycle. Ideal

Our backend is a Rails monolith, Postgres, plus a few tiny services in Ruby, Node or Bun.

At TripleTen, we’re creating innovative learning products that empower people to master IT professions like software engineering, data science, business intelligence, and QA — no matter their prior experience.Our AI-driven and thoughtfully designed platform helps students build real skills and a

Backend experience with either Java or Kotlin.

As a Backend Developer (Kotlin/Java) at CIMAR, you will:. Experience with backend frameworks such as Spring Boot and/or Ktor. Build and support backend services in Kotlin to support a web UI and a set of remote gateways.

We are building a full-stack AI cloud platform that supports developers and enterprises from data and model training through to production deployment, without the cost and complexity of building large in-house AI/ML infrastructure. The team brings together strong backend, frontend, product, and busi

The documentation engineering team is responsible for creating world‑class developer tools and framework‑level support for the documentation workflows on the developer website and Xcode. We’re looking for a software engineer to join the backend team and continue to scale and improve our existi

We are now expanding our team and are looking for skilled, goal-oriented backend developers to join our teams. Design backend services using Python and modern cloud‑native architecture.

Backend/platform services that sit in the. If your idea of backend engineering is more than CRUD APIs and microservices boilerplate — this role is for you. Build core backend services in.

We are looking for a Senior Backend Developer to join a growing product-focused engineering team. Strong commercial experience as a backend developer using Python ideally within a start‑up or scale‑up environment. You will play a key role in designing, building, and scaling specific backend appl

Join BLP Digital — The #1 Solution for ERP Automation.BLP Digital is redefining ERP automation with agentic AI.Spun out of ETH Zurich and HSG, we build AI agents that automate finance, procurement, logistics, sales, and more for some of the world's largest enterprises.We solve real enterprise prob

As a senior developer, you will contribute to the architecture, optimization, and security of critical backend infrastructure while collaborating with product, engineering, and design teams in an Agile environment. Senior Backend Developer – United Kingdom. Apply strong security principles and bes

This includes: Building endpoints that call LLM APIs (OpenAI, Anthropic) and handle streaming responses Integrating with vector databases for RAG architecture (Pinecone, Weaviate, or similar) Managing context preparation and prompt engineering via backend logic You don't need to be an AI expert, but

We’re looking for an experienced Magento backend developer to help lead the delivery of high-quality e-commerce solutions and mentor a growing team. You’ll set an example for excellence in backend development and support the growth of the team. Coach and mentor less experienced developers to enh

A growing consulting business in the UK is seeking a talented Backend Python Developer to contribute to their AI-driven platform project. The ideal candidate will have strong experience in Python backend development and familiarity with cloud-native architectures.

Transport for London is seeking Senior Developers to enhance its Contactless platform.

Collaborate regularly in a cross-functional team made up of product managers, quality assurance teams, designers and other developers to translate business requirements into technical solutions. Collaborate with Front-end developers to integrate user-facing elements with server-side logic. Stay upda

We’re seeking Mid and Senior Python Developers to join our back‑end development team.

The documentation engineering team is responsible for creating world‑class developer tools and framework‑level support for the documentation workflows on the developer website and Xcode. We’re looking for a software engineer to join the backend team and continue to scale and improve our existi

We are a global network of highly skilled developers, activists and professionals all on a mission to help solve the greatest threat of humankind.

Zaizi is looking for a Senior Software Developer with solid technology skills, but who is also passionate about improving outcomes and the user experience. Demonstrable experience working in multi-disciplinary/DevOps teams which include product owner/manager, UX designers, UX researchers, Developers

Looking for a passionate and skilled.In this role, you will work on building secure, scalable, and high-performance financial applications that power modern digital finance solutions.You will be part of a fast-paced environment working on cutting-edge systems such as payment platforms, banking integ