Senior C++/iOS Engineer — Secure Auth Platform (Remote)

Spotify; United States; Hybrid; USD 114,000 - 175,000; Full time

Job summary

Spotify is seeking a Senior C++/iOS Engineer to join the Baldur squad within User Platform. You will work on session management and delegated authorization for hundreds of millions of users, shaping secure access across client apps and third‑party integrations.

You’ll collaborate with engineers across teams to build secure, reliable authentication experiences, contributing to scalable authentication frameworks and token management on multiple platforms.

Qualifications

• Experience building secure, scalable authentication or authorization systems.
• Proficiency in C++ and native iOS development with Swift.
• Familiarity with security-sensitive token management and credential handling.

Responsibilities

• Collaborate with autonomous squads to advance delegated authorization and session management platforms.
• Design and evolve infrastructure powering Spotify applications and partner integrations using C++ libraries and Swift on iOS.
• Develop secure token issuance, refresh, revocation, and session lifecycle across platforms.

Skills

C++

Swift

Security systems

OAuth 2.0

Distributed systems

Job description

Spotify is seeking a Senior C++/iOS Engineer to join the Baldur squad within User Platform. You will work on session management and delegated authorization for hundreds of millions of users, shaping secure access across client apps and third‑party integrations.

You’ll collaborate with engineers across teams to build secure, reliable authentication experiences, contributing to scalable authentication frameworks and token management on multiple platforms.