Full Job Description
Just three years in, 15% of young people in the US (18-25) have tried Co–Star. That growth has been entirely through word of mouth – we have never spent on ads. We have millions of active users, have raised $6m, and just launched our second paid feature.
For thousands of years, astrology has functioned as social glue, giving people the tools to reflect and connect in real, meaningful ways. Co–Star is bringing astrology into the 21st century with an app people call their “best friend,’ compare to "a board meeting with your best friend, your boss, your mother, and the universe," and that therapists recommend to their clients.
Astrology is a deterministic system based on the time it takes a planet to orbit the sun. It's more like folk developmental psychology than it is like fortune cookies. Using NASA data interpreted by humans, Co–Star delivers personalized readings in real time. Our AI strings human-written snippets together to generate hyper-personalized interpretations of planetary movements for millions of people.
What you’ll do
Architect and build our Haskell backend with well-documented, easily-tested code that can gracefully scale to tens of millions of users.
Build an elegant system that takes the infinite complexity of human language, gives our writers tools for expressive composition, and delivers relevant horoscopes to users using aggregated contextual & historical signals.
Use machines to automate a wide variety of repetitive tasks, including some (not all) writing.
Work extremely closely with a small, cross-functional team to negotiate, build, and ship new features with the best bang for our buck.
You may be a good fit for this role if you have:
Hands-on experience writing in Haskell or other functional programming languages using modern architecture paradigms
Developed, scaled, and maintained complex web apps on cloud infrastructure (especially AWS)
A disciplined approach to development, testing, documentation, and code structure in a team environment
3+ years of experience and strong CS fundamentals
Experience in ML and NLP, particularly libraries like spaCy, GPT-2, and BERT, is a plus
We've been working remotely since the pandemic, so we welcome remote candidates for this role. In no way does "remote" mean isolated. We’re big into cross-functional collaboration. We ideate collectively, ship qualitatively-validated MVPs, and iterate based on internal & customer feedback. We validate what we think people need with iterative user testing, A/B test everything, and use data to inform our decisions. Weekly, the whole team talks through why tests worked or failed and plans our sprints. Quarterly, the entire company comes together to think of what we want to build.
Fully covered $0 deductible healthcare (including vision + dental)
Competitive cash + equity comp
Unlimited equipment budget
For thousands of years, astrology has functioned as social glue. It gives people tools to have real conversations about real life. Co-Star is bringing this ancient practice into the 21st century with a social, personalized experience that helps people reflect and connect in real, meaningful ways. Three years in, Co–Star has millions of monthly actives and we’ve raised $6,000,000 from the people behind companies like Glossier, Rent the Runway, eBay, Periscope, and Everlane.
App Store (4.9 stars with 97.9k ratings)
Google Play (4.7 stars with 14.2k ratings, we launched in January)
press: Apple, Vanity Fair, Vogue, The Verge, Cosmo
Co–Star deeply values diversity. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, disability status, or zodiac sign.