Product Developer
Employer: Charlie HR
Location: Live anywhere in the UK; we have 5 set days per year that we require the team to be together in our London office, but you have the flexibility to live anywhere in the UK
Working hours: Full Time
Salary: £60.5K-65K / year
Closing date: 16 Sep, 2026
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About Charlie
We’re Charlie and we exist to Make Work Better. We believe the best way to do this is by building a tool that democratises great HR for small businesses.
We’re looking for a Full Stack Rails Developer to join our growing software development team – and help us deliver a great product and user experience to our thousands of small business customers.
Come on and join us to make work better!
What is a "Full Stack Developer III"
We have a transparent career progression framework at Charlie. IC1 is a junior developer, IC4 is a senior developer, and IC levels 2 and 3 cover that middle area. For this role we’re interested in your specific Rails Frontend skills more than your seniority, so we’ve opted to offer interviews to people who fall within level 2 and level 3.
In this role you will:
As a Full Stack Developer you’ll be responsible for:
Building and improving Charlie, a modern Rails app that’s a joy to work on
Using our design system to ship functional and beautiful features
Being part of a cross-functional team with other developers and product managers
Working with developers of all experience levels, with opportunities to learn and share learnings
Requirements
You must have:
Professional experience with Ruby on Rails
Experience building web apps “HTML over the wire”
Knowledge of HTML, CSS and JavaScript
Enthusiasm for collaborating with and helping others
Self-awareness and humility – you know that honest feedback is how you grow, and you’re not afraid to ask for help.
Let us know if you have: (all of these are desirable, but none are required)
Experience working on SaaS products
Built web apps with the help of a design system
Worked with Stimulus and/or Turbo
Knowledge of web accessibility standards
We will still consider applications even if you don't meet every single one of the above requirements, so don't be put off if you don't match them absolutely perfectly!
This is a permanent full-time role. We cannot offer visa sponsorship and you must be able to work in the UK.
The Way We Work
How we're crafting ownership, belonging and structured flexibility:
A team of 39 that genuinely enjoy spending time together, with regular in-person and remote events to foster connection
9 day fortnights; our adjusted work week. We have every other Friday off work
Hybrid-first approach; we optimise for office and remote working to be valued equally, and to be equally valuable
Live anywhere in the UK; we have 5 set days per year that we require the team to be together in our London office, but you have the flexibility to live anywhere in the UK
90 bookable "nomad working" days outside of the UK in any timezone each year
An amazing office space in East London's pet-friendly Second Home, and membership access to their wider London and LA locations.
“Exploration days” when you can work on whatever across the company
We have review cycles 2x a year using our transparent career progression framework, and dedicated personal development time
Compensation Package
A benchmarked salary from £60,500 based on your level within our progression framework
Benefits
£750 yearly Work Your Way Budget (to put toward things like travel to London for company events, getting your home office setup and your L&D)
Access to our Learn You Way Fund (a company-wide fund that folks can apply to bolster their Work Your Way budget for L&D purposes
£30 monthly wellbeing Budget
Private Health Insurance through Vitality
25 days annual leave + public holidays
4 bookable “Personal days” per year for when you can’t bring your full self to work
A sabbatical of up to one month paid at 50% of salary, for every 3.5 years worked at Charlie.
Enhanced Equal Parental Leave policy
Equal Opportunities Statement
We are an equal opportunity employer and believe in the power of a diverse, inclusive team.
We welcome all applications from all suitably qualified people, regardless of race, sex, disability, religion / belief, sexual orientation or age.
Please let us know if you require anything which would enable your success throughout our interview process.
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