Ruby on Rails Developer - 5,382+ job offers

Help power free access to millions of family history records. We’re seeking Ruby on Rails developers, to support our volunteer-led platforms and shape the future of digital genealogy. What difference will you make? Our services are entirely free to access, and they rely on a combination of volunteer

Requirements Must have: - 8-10 years of professional software engineering experience - Strong experience with Ruby on Rails in production environments - Deep understanding of backend systems, APIs and service architecture - Strong experience working with relational databases (PostgreSQL preferred) -

Our Future Health is an ambitious collaboration between the public, charity and private sectors, designed to help people live healthier lives for longer through better prevention, earlier detection and improved treatment of diseases. We will speed up the discovery of new methods of early disease det

Ruby on Rails Developer - £65-75,000 per annum AI Tech firm (SaaS) Volition is currently partnering with an exciting new start-up who are building a modern new AI solution. Responsibilities Design and build modern web applications in Ruby on Rails Focus on backend services and APIs Work closely with

Requirements Must have: - 3-5 years experience in Ruby on Rails (or strong backend experience with willingness to cross-train from Python) - Solid commercial software engineering background - Comfortable owning features end-to-end and working in production environments - Interested in mentoring othe

*London (Paddington) · Hybrid (3 days in-office) · Full-time** *About wawa fertility** 17% of adults worldwide need help to have a baby - and by 2050, that number will reach nearly 50%. Yet only 2% can access fertility treatment today. That’s not a gap; it’s a canyon. And we’re building the bridge.

📍 London (Paddington) Hybrid (3 days in-office) Full-time *🌱 About Wawa Fertility** 17% of adults worldwide need help to have a baby - and by 2050, that number will reach nearly 50%. Yet only 2% can access fertility treatment today. That’s not a gap; it’s a canyon. And we’re building the bridge. A

Koinly is a market leader in the crypto tax space. We’ve achieved solid product-market fit by simplifying complex tax and asset-tracking for millions of users. Our mission is clear: by building the most seamless crypto tax and asset-tracking tool in the world, we remove the final barriers to widespr

We are looking for a Ruby on Rails Developer to support the continued growth of a rapidly expanding international business. With recent expansion from the UK into Australia and plans to launch in New Zealand, this role offers the opportunity to work across a diverse and evolving technology landscape

As a high-performing SME with a global customer base, we’re looking for a *senior full stack engineer** to maintain and improve our core platforms and work closely with a small, high-performing team to deliver simple, scalable software that delights our customers. Alongside your engineering peers, y

Koinly is a market leader in the crypto tax space. We’ve achieved solid product-market fit by simplifying complex tax and asset-tracking for millions of users. Our mission is clear: by building the most seamless crypto tax and asset-tracking tool in the world, we remove the final barriers to widespr

*🚀 Contract Lead Ruby Developer– (UK Remote)** *📍 100% Remote (EU-Based Candidates Only)** *⏳ 12-Month Contract** We are supporting a leading organisation in the insurance sector as they scale and modernise their *cloud‑based core platform** . They are looking for an experienced *Senior Ruby Engin

*Senior Ruby on Rails Engineer (Lead Track/ good growth potential!)** *Location:** London (mostly office-based) *Salary:** ~£70k + flexibility & strong growth potential We’re looking for a Senior Ruby on Rails Engineer ready to take ownership of key systems and step into a lead‑level role. You’l

Hays are now looking for a Ruby Developer for one of our local clients: Rate: Circa £450 p/d Inside IR35 Hybrid: 1-2 days a week in Bath, rest is WFH Duration: 6 month+ contract Overview A highly skilled Ruby Developer is required to support a small, fast‑paced digital development team working on a

Company Description FAVORED NATIONS MUSIC LTD is a Watford- based music company Specializing in the music sector, the company is committed to fostering innovative and creative developments in the industry working with Barry Blue in his creative projects.With a strong presence in the United Kingdom,

*Company Description** FAVORED NATIONS MUSIC LTD is a Watford- based music company Specializing in the music sector, the company is committed to fostering innovative and creative developments in the industry working with Barry Blue in his creative projects.With a strong presence in the United Kingdo

Join Our Team as a Graduate Programmer! Contract Type: Permanent Salary & Benefits: £24,000 - £26,000 DOE Start your career as a Programmer with ProQual At ProQual AB, we’re an established and respected UK Awarding Body, regulated by Ofqual in England and CCEA in Northern Ireland. While our core wor

About Steel City Interactive SCI was born out of passion for video games and boxing, with the ambition to create an authentic and exciting boxing game that does justice to the sport we love. What started as a fun prototype has grown into ‘Undisputed’, the first major boxing video game in over a deca

Adelphi Real World – Programmer Who We Are Adelphi Real World is a global consultancy in healthcare. We collect and interrogate real world data to aid the pharmaceutical industry in understanding the management and treatment of specific diseases. This understanding informs the successful development

Adelphi Real World – Programmer Who We Are Adelphi Real World is a global consultancy in healthcare. We collect and interrogate real world data to aid the pharmaceutical industry in understanding the management and treatment of specific diseases. This understanding informs the successful development