Senior Software Engineer at Co–Star

At Co-Star, we believe that building great software is about simplicity and collective intelligence. Inspired by the history of Unix, we prioritize getting ideas into the world quickly and refining them through constant feedback. We help tens of millions of people connect with themselves and each other through the lens of astrology, and we are looking for a talented engineer to help us scale that mission.

Role at a glance

We are seeking a Senior Software Engineer to join our team on a full-time basis. This is a remote position open to candidates located anywhere. You will be instrumental in building the backend systems that power our platform, working in an environment that values deliberate, high-quality engineering.

Your impact

• You will collaborate directly with our product, design, and engineering teams to ship solutions that drive our business forward.
• You will translate complex technical challenges into clear, actionable plans, weighing trade-offs and communicating your logic through documentation.
• You will take full ownership of your projects, moving quickly to get code into production while actively seeking feedback to improve our systems.

What you'll need

• Between 3 and 7 years of professional backend development experience.
• Proficiency in or a strong desire to master Haskell.
• A deep appreciation for testing and documentation as essential pillars of sustainable development.
• Hands-on experience with AWS cloud infrastructure and PostgreSQL databases.
• A pragmatic approach to problem-solving, with the ability to balance rapid delivery with long-term technical quality.
• Strong communication skills in English, allowing you to articulate technical decisions clearly across the team.

Perks and compensation

We offer a competitive base salary range of $139,000 to $200,000 USD, complemented by a comprehensive total rewards package that includes equity compensation.

• Fully covered healthcare with a $0 deductible, plus vision, dental, and therapy coverage.
• 401(k) plan with a 5% company match.
• Unlimited vacation policy, including a mandatory 2-week company-wide recharge at the end of every year.
• 12 weeks of 100% paid parental leave.
• A dedicated equipment budget to ensure you have the tools you need.
• Unique perks like readings with our in-house astrologers.