At a Glance
- Tasks: Build innovative products that help homeowners make better renovation decisions.
- Company: Join Resi Labs, the tech arm of the UK's largest residential architecture practice.
- Benefits: Enjoy hybrid working, private health insurance, 33 days annual leave, and more.
- Other info: Collaborative culture focused on personal development and diverse perspectives.
- Why this job: Shape the future of home renovations with cutting-edge technology and a supportive team.
- Qualifications: Strong Ruby on Rails skills and a passion for frontend experiences required.
The predicted salary is between 50000 - 60000 £ per year.
About Resi Labs
Resi Labs is the technology and innovation arm of Resi, the UK's largest residential architecture practice. We're building products that help millions of homeowners make better renovation decisions - from understanding planning feasibility and build costs to visualising what's possible with their property. We sit on a unique dataset built over a decade: 2 million planning applications, 40,000 builder quotes, and thousands of detailed floor plans and 3D models linking design, planning, and cost data in ways no one else can. Our products are already embedded on platforms like Rightmove and Zoopla, reaching millions of homeowners per year.
About The Role
We're looking for a strong Product Engineer (full-stack) to join our product engineering team. You'll be someone who thinks of yourself as an engineer first, with deep hands-on experience in Ruby on Rails and a genuine passion for building great frontend experiences. You'll take pride in the quality of what users see and interact with, while being equally capable of working across the full stack to deliver features end-to-end.
As a small, autonomous team, there's a real opportunity to lead here. To shape technical direction, own meaningful pieces of the product, and have your voice heard. At the core of what we build is a large dataset and data processing pipeline covering UK property data. You'll work closely with this data, helping to consume, refine, and unlock its value based on evolving product requirements - so an interest in working with complex, real-world datasets will serve you well.
We're also fortunate to be working on a relatively greenfield codebase with limited technical debt, meaning you'll spend your time building thoughtfully rather than fighting legacy decisions. And we're genuine believers in AI-powered workflows, from how we write code to how the business operates day-to-day, so comfort with and curiosity about AI tooling is a must.
What You'll Do
- Build polished, responsive frontend experiences using Hotwire (Turbo & Stimulus) and Tailwind CSS
- Design and build full-stack features across our Rails application, from database to UI
- Collaborate with product and design to translate requirements into intuitive, well-crafted interfaces
- Build and consume APIs that power both internal tooling and customer-facing features
- Write clean, well-tested, and maintainable code with a focus on long-term scalability
- Work with our UK property dataset and data pipeline to surface meaningful information through the product
- Participate actively in code reviews, giving and receiving feedback constructively
- Contribute to architectural discussions and help raise the overall quality bar of the codebase
What We're Looking For
- ~5 years of professional software engineering experience (we care more about the quality of that experience than the exact number!)
- Strong proficiency in Ruby on Rails - you've built and maintained production Rails apps and feel genuinely at home in the framework
- A strong eye for frontend quality - you care about how things look and feel, not just whether they work
- Comfortable working with HTML, CSS, and JavaScript across a modern Rails frontend stack
- Familiarity with relational databases (PostgreSQL preferred) and writing efficient queries
- Comfortable building and consuming APIs as part of delivering full-stack features
- Experience writing automated tests (RSpec, Minitest, or similar)
- Good communication skills and a collaborative mindset - you can explain technical decisions clearly to both engineers and non-engineers
- Ability to work independently and manage your own delivery without heavy oversight
Nice to Haves
- Experience with Three.js - we're actively building 3D visualisation features and this will be an ongoing and growing part of the product
- Experience with Hotwire (Turbo & Stimulus) and Tailwind CSS
- Familiarity with background job processing (Sidekiq, Delayed Job, etc.)
- Experience with Python and FastAPI - our data pipeline and some supporting services are built in Python, and you'd be expected to maintain and contribute to these alongside the Rails codebase
- Familiarity with Render or similar cloud infrastructure and deployment platforms
- Experience working in a startup or high-growth environment
Our Stack
- Backend: Ruby on Rails, PostgreSQL, Sidekiq
- Data & Services: Python, FastAPI
- Frontend: Hotwire (Turbo Stimulus), Tailwind CSS, Three.js
- Infrastructure: Render
- Tooling: GitHub Actions, Sentry
About Resi
Resi is the UK’s number one home extension company transforming how homeowners design, plan and build. With over 10,000 projects nationwide and a 95% planning approval rate, we make architecture accessible and transparent through a digital platform that brings design, planning and build support together. We are a team of ~60 based in the Fora in Elephant & Castle.
At Resi, you will have the opportunity to work differently, take control of, and really accelerate your career. Our success is all down to our wonderful people and their talent, and that’s why we treat our employees with the same respect and care as our customers. We pride ourselves in not just aiming to be the best in the industry, but also the best place to work - our collaborative, transparent and diverse culture, with a heavy focus on personal development, means that we don’t just grow homes, we grow people too. We have an ideas-led innovation culture and we really care about creating a diverse and inclusive team - so we welcome people from all backgrounds with different perspectives, ideas and experiences to work with us.
We offer our employees:
- Hybrid & flexi working
- Private health & dental insurance via Bupa
- 33 days of Annual Leave (including bank holidays)
- An additional day of Birthday Leave after a year of employment
- On the job mentoring, coaching and learning & development
- Access to therapy, mental health support & coaching via Plumm / EAP
- Equipment and software that enable you to do your best work
- Gym membership
- Enhanced parental leave
- Regular company-wide socials organised by the Resi social committee, and paid for by Resi
- Office and wider Workspace perks including snacks, fresh fruit and refreshments
Product Engineer (Ruby on Rails) in Cambridge employer: Resi
At Resi Labs, we pride ourselves on being an exceptional employer, offering a collaborative and inclusive work culture that prioritises personal development and innovation. Located in the vibrant area of Elephant & Castle, our team enjoys hybrid working options, generous annual leave, and comprehensive health benefits, all while contributing to meaningful projects that impact millions of homeowners. Join us to not only advance your career but also to be part of a diverse team that values every voice and fosters growth.
StudySmarter Expert Advice🤫
We think this is how you could land Product Engineer (Ruby on Rails) in Cambridge
✨Tip Number 1
Network like a pro! Reach out to folks in the industry, attend meetups, and connect with Resi Labs on LinkedIn. You never know who might have the inside scoop on job openings or can put in a good word for you.
✨Tip Number 2
Show off your skills! Create a portfolio showcasing your best Ruby on Rails projects. Make sure to highlight any frontend work too, as we love engineers who care about user experience. Share it during interviews or even on your social media!
✨Tip Number 3
Prepare for technical interviews by brushing up on your coding skills. Practice common algorithms and data structures, and don’t forget to review Rails-specific concepts. We want to see how you think and solve problems, so be ready to explain your thought process.
✨Tip Number 4
Apply through our website! It’s the best way to ensure your application gets seen. Plus, it shows us you’re genuinely interested in joining our team at Resi Labs. Don’t hesitate – we’re excited to see what you can bring to the table!
We think you need these skills to ace Product Engineer (Ruby on Rails) in Cambridge
Some tips for your application 🫡
Show Your Passion for Engineering:When you're writing your application, let your enthusiasm for engineering shine through! Talk about your experience with Ruby on Rails and how you love building great frontend experiences. We want to see that you’re not just looking for a job, but that you genuinely care about creating amazing products.
Tailor Your Application:Make sure to customise your application to highlight the skills and experiences that match our job description. If you've worked with complex datasets or have experience in a startup environment, shout about it! We appreciate candidates who take the time to connect their background to what we do at Resi Labs.
Be Clear and Concise:Keep your application straightforward and to the point. Use clear language to describe your past projects and achievements. We love a good story, but make sure it’s easy to follow and relevant to the role. Remember, clarity is key!
Apply Through Our Website:We encourage you to apply directly through our website. It’s the best way for us to receive your application and ensures you don’t miss out on any important details. Plus, it shows us you’re keen to join our team at Resi Labs!
How to prepare for a job interview at Resi
✨Know Your Ruby on Rails Inside Out
Make sure you brush up on your Ruby on Rails skills before the interview. Be prepared to discuss your past projects, the challenges you faced, and how you overcame them. This will show that you not only know the framework but can also apply it effectively in real-world scenarios.
✨Showcase Your Frontend Flair
Since the role emphasises frontend quality, be ready to talk about your experience with HTML, CSS, and JavaScript. Bring examples of polished, responsive designs you've created, and if possible, demonstrate your familiarity with Hotwire and Tailwind CSS. This will highlight your attention to detail and design sensibility.
✨Get Comfortable with Data
As you'll be working with complex datasets, it’s crucial to express your interest in data processing. Familiarise yourself with relational databases like PostgreSQL and be ready to discuss how you've used data to inform your engineering decisions in previous roles.
✨Communicate Clearly and Collaboratively
Good communication is key, especially in a small team. Practice explaining technical concepts in simple terms, as you’ll need to collaborate with both engineers and non-engineers. Show that you can give and receive constructive feedback during code reviews, which is essential for maintaining a high-quality codebase.
