The opportunity timeline

• Overview

  Two Sigma is hiring a Mobile Developer in Lancaster, CA.

• Role description

  Our Mobile Developer opening rewards depth over breadth: pick Networking, go deep, and let Two Sigma handle the rest of the stack. Bring 5 years of technology experience to a $91,000 - $129,000 role built around ownership, teamwork, and growth.

  Key Responsibilities

  • Translate fuzzy product wishes from Two Sigma stakeholders into shippable Networking services
  • Design Networking APIs other Lancaster, CA teams will still thank you for next year
  • Tune Networking caching so Two Sigma survives the Lancaster launch spike on the same hardware
  • Contribute to sprint planning, estimation, and technology roadmap discussions
  • Walk technology stakeholders through Swift tradeoffs in language Two Sigma execs grasp
  • Sit with technology users in Lancaster to learn what the Networking tool really needs

  What You'll Bring

  • Strong working knowledge of Networking and Next.js
  • Confident communicator across email, calls, and in-person meetings
  • Comfortable owning projects from concept through delivery
  • Empathy-led problem-solving that doesn't wait for permission
  • The kind of empathy that makes hard feedback land softly
  • A history of leaving technology processes better than you found them

  Two Sigma brings together sharp-but-gentle people in Lancaster, CA who care deeply about the craft behind technology. Our Lancaster office runs on mutual respect, low ego, and a genuine willingness to help.

  For your 3 of Go, expect $91,000 - $129,000, a mentor, a benefits package, and the room to grow on a flexible schedule.

  This Lancaster, CA role just got a fresh timestamp, and applications are flowing in.

  Stop scrolling job boards and start a conversation with the Two Sigma hiring team instead.

• Required skills

  • Next.js
  • Ruby on Rails
  • Swift
  • Go
  • Networking
  • Relationship Building

• Benefits & perks

  • Annual physical and health screenings
  • Paid volunteer days
  • Relocation Assistance
  • Paid relocation for international moves
  • Stock Options
  • Paid personal days
  • Commuter Benefits
  • HSA investment options
  • Earned wage access

• Apply before 2026-09-02

  Submit your application for this Hybrid technology position.