Ruby on Rails Developer jobs in County of Cardiff

Senior Ruby on Rails Developer – Remote (UK) We're working with a high growth UK-based FinTech company and looking for a strong Senior Ruby on Rails Developer to join their UK-based engineering team. What you'll need: - Strong backend Ruby on Rails experience (7+ years) - Experience working with payments is desirable. - Solid communication skills for a fully remote team. What's on offer: -...

You will provide strategic rail advice to external and internal clients, coordinate multi‑disciplinary projects, develop our rail‑focused service offering, plan and deliver tasks and projects, involve yourself in bidding for new work, and engage with clients and the WSP global community.

📍 Remote | Full-Time 👋 About Us Medify is a mission-driven EdTech company widening access to medicine and healthcare careers. Our platform supports thousands of learners preparing for high-stakes admissions exams, and our engineering team plays a critical role in delivering reliable, scalable, and high-quality learning experiences. Medify Engineering is a team of ten engineers across two...

You will ensure that the projects are delivered safely to a high-quality, in a timely manner, and compliant with budget.

You will be based in one of our modern, vibrant offices, situated in great city centre locations across the UK.

You will, on occasion, visit sites.

You will have the opportunity do socially useful work that has meaning – to Arup, to your career, to our members and to the clients and communities we serve.

You will have the ability to confidently communicate complex problems and solutions to technical and non-technical audiences.

You will be in a leadership role providing a key senior interface to our clients, demonstrating our commitment to deliver their requirements, building strong relationships and acting as a trusted advisor. You'll work with the Rail and wider WSP leadership teams to ensure that your projects are planned and equipped to deliver.

The Oracle Cloud Infrastructure (OCI) Offensive Security team provides OCI with the capabilities to ensure our systems and services meet the security objectives we communicate to customers. The Offensive Security group performs security assessments, vulnerability research, static and dynamic analysis research, penetration testing, red-teaming, and security tool development. We ensure the security...

Job Description Work with AtkinsRéalis to make the world’s outlook brighter and healthier. You might know us for the great work we do across our wide variety of projects. We're proud to say it's thanks to our people's diversity of thought, expertise, and knowledge. And when you join us, you'll be a part of this genuinely collaborative environment, where everyone's voice is valued and treated...

MorsonEdge are looking to recruit a motivated Architect / Architectural Technologist to join a busy Cardiff studio for the architectural design of a Railway Station. This appointment will be on a 1 year contract basis, starting 1 Feb 2026. The business is an exciting and inspirational place to work, and they are a top 5 AJ 100 practice with a global depth of talent and reach. They passionately...

About The Role Senior Building Surveyor (Drone & Digital Surveys) Cardiff / Birmingham / Bristol / South East Currie & Brown, a global leader in construction and physical asset management consultancy, is expanding its UK building surveying team in Cardiff / Birmingham / Bristol / South East. This is a blended role combining the expertise of a Senior Unmanned Aerial System (UAS) Surveyor with...

You will be a critical commercial leader within a high-performing team of engineers, PMs, legal advisors and technical specialists, as well as external contractors and consultancies. Key Responsibilities - Lead cost and contract management for high-value, complex engineering projects with minimal supervision.

Job Title – Principal / Associate Structural Engineer Salary – £50,000 to £60,000 dependant on experience Location – Cardiff Due to strategic expansion our client has an immediate vacancy in their Cardiff office for an experienced Principal or Associate Structural Engineer with an ambition to oversee the technical delivery of a portfolio of projects allocated to them. In doing so the...

Principal EIA Consultant – ArcadisOpportunityArcadis is the world's leading company delivering sustainable design, engineering, and consultancy solutions for natural and built assets.We welcome experienced environmental professionals to join our Environmental Planning team as Principal Environmental Consultant, bringing broad EIA expertise to lead multidisciplinary projects, develop new business,...

Role: Quality Test Engineer (Manual & Automation) Rate: £440 per day IR35: Inside Working Practice: Remote Length: 6 Months This role offers a unique opportunity to leverage your experience in automation using Postman and other tools, while also playing a vital part in our manual testing requirements. We are particularly interested in candidates with experience migrating Cucumber (Ruby)...

What that means day to day You'll be a guardian of Alcumus’ systems architecture and principals, having an in-depth knowledge of them. Translating technical concepts between software engineering, product, and operations so they are understood by all. Working with business, product, and technology stakeholders to translate business problems into solutions. Defining a technical roadmap through...

You will work with Solution Architects to create optimal designs through an iterative process, aligning the user need with the system requirements and organisational objectives. Working closely with engineering teams designing technical solutions and ensuring their delivery according to defined architectures and principals.

About The Role Senior Building Surveyor (Drone & Digital Surveys) Cardiff / Birmingham / Bristol / South East Currie & Brown, a global leader in construction and physical asset management consultancy, is expanding its UK building surveying team in Cardiff / Birmingham / Bristol / South East. This is a blended role combining the expertise of a Senior Unmanned Aerial System (UAS) Surveyor with...

MorsonEdge are looking to recruit a motivated Architect / Architectural Technologist to join a busy Cardiff studio for the architectural design of a Railway Station. This appointment will be on a 1 year contract basis, starting 1 Feb 2026. The business is an exciting and inspirational place to work, and they are a top 5 AJ 100 practice with a global depth of talent and reach. They passionately...

Job Description Job Title – Principal / Associate Structural Engineer Salary – £50,000 to £60,000 dependant on experience Location – Cardiff Due to strategic expansion our client has an immediate vacancy in their Cardiff office for an experienced Principal or Associate Structural Engineer with an ambition to oversee the technical delivery of a portfolio of projects allocated to them. In...

You will be a critical commercial leader within a high-performing team of engineers, PMs, legal advisors and technical specialists, as well as external contractors and consultancies. Key Responsibilities - Lead cost and contract management for high-value, complex engineering projects with minimal supervision.