Co-Star Logo

Co-Star

Senior iOS Developer

Reposted 7 Days Ago
In-Office
New York City, NY, USA
135K-190K Annually
Senior level
In-Office
New York City, NY, USA
135K-190K Annually
Senior level
As a Senior iOS Developer, you will release features weekly, collaborate with product and design teams, and improve the app's codebase with thoughtful planning and testing.
The summary above was generated by AI

In Dr Joseph Lstiburek’s essay “A Perfect Wall”, he analyzes the elements that enable a wall to perform its core function–separating the inside from the outside. He calls the most solid type of wall a “five hundred year wall”, referring to the five centuries of construction knowledge that went into its making (and the five hundred years it could endure). Capacity accumulates across generations, bringing perfection within reach. Randy Williams’ “A Practical Perfect Wall” takes Lstiburek’s ideal principles of wall-building and clearly outlines modern procedures for making them into real walls. 

A perfect wall and perfect code are similar. In applying best practices, we experience perfection not as a mystical ideal, but as a practical exercise of our expertise. Perfection is not about pushing a meaningless metric to 100%. Code is perfect when it achieves its intended purpose.
We are looking for a highly competent engineer with a deep appreciation for the practical perfectibility of everyday, tangible experience, and a desire to make constant improvements over time. Someone who shares our standards for a perfect system: one that is built with a specific end use in mind, and reliably fulfills that need. 

The engineering team at Co-Star values communication, collaboration–and most importantly, delivery. We prioritize making as much contact with reality as possible, to find out directly from users what they want and need. Like walls make buildings that hold human life within them, the systems we create together are containers of intimacy, humor and connection.

What you'll do
  • You’ll release features weekly to millions of people. Every launch is an experiment in making astrology feel more accessible, and your work will be in users’ hands almost immediately.
  • You’ll collaborate closely with product and design to turn ambitious concepts into practical, reliable code.
  • We’re a small, nimble team: you won’t just be handed tickets, you’ll have real input into how we build and you’ll influence the future of our iOS codebase.
What you'll bring
  • 4+ years of iOS experience, solid frontend fundamentals like animation, caching, and state management.
  • You’re solution oriented–every problem has a fix, and you enjoy finding the best path to it.
  • Thoughtfulness and intentionality in how you work: You plan ahead, coordinate with your team, and work together to get projects across the finish line and into the hands of our users.
  • You’re driven to improve  systems. To you, good code means “easy to use, hard to break” and you make it happen through collaborative planning, thorough testing, and strategic experimentation.
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 100% paid parental leave
  • Readings with in-house astrologers
  • A competitive total rewards package, including base salary, equity (stock options), and benefits. Offers are crafted based on a candidate’s experience, expertise, location, and internal equity relative to peers. Our target new hire base salary ranges for this role is $155,000-$220,000.
HQ

Co-Star New York, New York, USA Office

1, New York, NY, United States, 10013

Similar Jobs

9 Days Ago
In-Office
New York, NY, USA
180K-215K Annually
Senior level
180K-215K Annually
Senior level
Healthtech • Software • App development
As a Senior iOS Engineer, you will lead feature development and architectural decisions for iOS/watchOS while mentoring other engineers and collaborating across teams to build high-quality consumer apps.
Top Skills: HealthkitSwiftSwiftuiWatchkit
24 Days Ago
Hybrid
New York, NY, USA
Senior level
Senior level
Fintech • Software • Financial Services
The Senior iOS Engineer will build and ship iOS experiences, write clean Swift code, collaborate with teams, and contribute to app architecture and evolution.
Top Skills: CombineSwiftSwiftuiUikit
10 Days Ago
In-Office
New York, NY, USA
Senior level
Senior level
Information Technology • Internet of Things
Design and develop the iOS app for Suno, focusing on performance and user experience. Mentor team members and set technical direction.
Top Skills: SwiftSwiftuiUikit

What you need to know about the NYC Tech Scene

As the undisputed financial capital of the world, New York City is an epicenter of startup funding activity. The city has a thriving fintech scene and is a major player in verticals ranging from AI to biotech, cybersecurity and digital media. It also has universities like NYU, Columbia and Cornell Tech attracting students and researchers from across the globe, providing the ecosystem with a constant influx of world-class talent. And its East Coast location and three international airports make it a perfect spot for European companies establishing a foothold in the United States.

Key Facts About NYC Tech

  • Number of Tech Workers: 549,200; 6% of overall workforce (2024 CompTIA survey)
  • Major Tech Employers: Capgemini, Bloomberg, IBM, Spotify
  • Key Industries: Artificial intelligence, Fintech
  • Funding Landscape: $25.5 billion in venture capital funding in 2024 (Pitchbook)
  • Notable Investors: Greycroft, Thrive Capital, Union Square Ventures, FirstMark Capital, Tiger Global Management, Tribeca Venture Partners, Insight Partners, Two Sigma Ventures
  • Research Centers and Universities: Columbia University, New York University, Fordham University, CUNY, AI Now Institute, Flatiron Institute, C.N. Yang Institute for Theoretical Physics, NASA Space Radiation Laboratory

Sign up now Access later

Create Free Account

Please log in or sign up to report this job.

Create Free Account