Demo

Remote Senior Haskell Engineer - Co-Star

WorksHub
Queens, NY Remote Full Time
POSTED ON 4/17/2025
AVAILABLE BEFORE 5/16/2025

SOMEONE DOWNLOADS CO–STAR EVERY 5 SECONDS.

In the five years since we launched, 25% of young people 18-25 in the US have downloaded Co-Star. Our growth has been entirely through word of mouth—we’ve never spent money on ads.Big Seanhas rapped about us, Ariana Grande &Kevin Durantpost screenshots to their IGs, and we’ve beenApp of the Daytwice.

ASTROLOGY HAS BEEN POPULAR FOR 4000 YEARS .

Astrologyis a deterministic system, based on the physical location of stars in the sky. For thousands of years, it has given people the tools to reflect and connect in real, meaningful ways; a barely-disguised language for intimate conversation about hopes, emotions, fears, and needs.

WE’RE MERGING THE RESONANCE OF THE HUMANITIES WITH THE PRECISION OF TECHNOLOGY.

We’ve been using GPT since the very beginning. Every day, we generate millions of completely personalized horoscopes by combining natural language processing with the insights of staff poets & astrologers.

We're looking for a Haskell Engineer to architect and build our Haskell backend to help tens of millions of people connect to each other and themselves – through astrology – in real, meaningful ways.

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

WHAT YOU'LL BRING

  • 3 years of hands-on experience writing in Haskell or another functional programming language
  • 5 years of commercial experience
  • An ability to develop, scale, and maintain complex web apps on cloud infrastructure (we use AWS)
  • A disciplined approach to development, testing, documentation, and code structure in a team environment
  • Knowledge or a willingness to learn about ML and NLP, particularly libraries like spaCy, GPT-2, and BERT, is a plus
  • OUR TECHNICAL INTERVIEW PROCESS

    Our interview process is divided into four phases — an initial interview with a recruiter, a secondary interview with a manager, a technical onsite interview with peers and cross-functional coworkers, and lastly, a meeting with our founder.

    We realize technical interviews can feel challenging to prepare for, so here’s what we’re interested in seeing from you :

  • Clean, easily-testable code that’s compiled frequently
  • Clear communication around your decision-making process
  • Creative and thoughtful problem-solving
  • Self-reflection around past projects and the ability to articulate what worked, what didn’t work, and what you'd do differently now that you know the outcomes
  • Ability to partner with cross-functional coworkers outside of engineering
  • We’re not interviewing for :

  • Pure coding skills (we’re a cross-functional company and the ability to collaborate across disciplines is equally as important as coding ability)
  • Memorization of complex algorithms or trivia (we all have access to some form of search engine and use it when we forget)
  • Your ability to know everything (we may ask you a question you don’t know the answer to and that’s ok)
  • Cracking the Code” / LeetCode-type knowledge
  • WHAT WE OFFER

  • Fully covered $0 deductible healthcare vision, dental, and therapy
  • 401(k) 5% matching
  • Unlimited vacation 2 week company-wide recharge at the end of each year
  • Equipment budget
  • 12 weeks of 100% paid parental leave
  • Readings with in-house astrologers
  • 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.

    PLEASE USE THIS LINK TO APPLY

    Please make sure you read the following details carefully before making any applications.

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    Remote working / work at home options are available for this role.

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