Sweatcoin is a global Top 10 Health & Fitness app that tracks physical movement, converting it into digital currency. The free app comprises movement-verification technology, gamification and a marketplace of exclusive offers and product deals that Sweatcoin can be redeemed for. Sweatcoin 4 Good also enables donation of the currency to good causes. With 100M+ Sweatcoin downloads, we are the fastest ever growing Health & Fitness app with 20M downloads this year alone, putting us at the top of 42+ countries' app stores as the most downloaded Health & Fitness app of 2022 to date. Since June 2021 we've worked with 1300+ brand partners providing the equivalent of $200 million of value in exchange for users' steps, increasing their walking by an average of 20%. In total our users have walked 23 Trillion steps. Sweatcoin is a rapidly-growing, profitable UK business and a global thought leader within health-tech. The business has collaborated with influential academics on research published in the British Journal of Sports Medicine into the success of incentivised behavioural change and worked with the NHS on a successful trial with pre-diabetic patients. (A trial that resulted in an 85% retention rate and average weight-loss per participant of 1.1kg). Covered by New York Times, CBS, Forbes, Fortune, Reuters, Huffington Post and others, Sweatcoin has raised capital from investors across the US & Europe, including Goodwater Capital, Greylock Partners, Justin Kan (founder of Twitch and Justin.tv) and Rain Lohmus (founder of LHV Bank). London-headquartered, with team members based across the world representing 22+ nationalities, it is the people that make Sweatcoin a special company and a great place to work. Our Purpose: To inspire a healthier planet by unlocking the value of movement Our Vision: A world where an open-economy of movement - of wealth through health - exists Our Mission: Create a global, new-generation* currency generated by physical movement

Job description

Since 2015 Sweatcoin and now Sweat Economy is working on making the world more physically active. With more than 100 million registered users, thousands of partners and a proven ability to make people move more (+20%) Sweat Economy has already become the largest onramp in web3 history. We now working on turning our token - $SWEAT - into the principal unit of physical activity value and building an economy of movement around it.

As a Senior Backend Developer, you will contribute the team for making the Sweat Wallet app into the best multichain mobile wallet on the market with tens of millions of users.

Who we are looking for:

Extensive experience in robust Ruby & Rails API design & development
Experience in making robust 3rd-party integrations
Experience in the blockchain world is a plus!
Ability to carry unclear product requirements to stable, clear, deployed features
Ability to work autonomously, determining what needs to be done and why with little-to-no oversight (think managers of one)
Habitually ensuring new app behaviors are covered by specs to ensure stability
Experience working on high-loaded projects involving cross-functional collaboration
Ability to find a compromise between perfect code and fast delivery
English language not lower than Intermediate

Tech stack:

Ruby 3
Rails 7
Puma
PostgreSQL
Redis
Sidekiq
GCP & AWS

Why join us?

Remote-friendly & Flexible working hours. The flexibility is incredible, performance is based on output, rather than hours spent working, our core hours are (10:00-16:00 GMT)
Stock options after 12 months of employment (50% of Basic Salary)
Team building abroad in exciting locations!
Unlimited time-off policy
Two office locations, London and Lisbon, in case you'd like to work from the office sometime
Wellbeing program, (up to 2 counselling session per month)
Health Insurance, for our employees joining outside UK or PT you have a 1000€ yearly allowance.

If you feel that that’s a match we would be excited to have you on our team!

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