iOS Developer

Altimi is a technology acceleration partner with over 20 years of experience, specializing in software development projects for international customers in the DACH region and Scandinavia. Their main competencies include Product & Application Engineering, DevOps, Cloud Security & Managed Services, and AI & Data Enablement.

• Minimum 4+ years of commercial iOS development experience.
• Strong proficiency with Swift.
• Practical experience integrating apps with backend APIs.
• Deep understanding of client certificates and mTLS (P12 / PEM / DER, rotation, expiration logic).
• Experience with URLSession and trust evaluation using SecTrust.
• Ability to design and implement a state machine for provisioning, binding, and connection flows.
• Strong handling of network changes, connectivity resilience, and iOS app lifecycle events.
• Solid diagnostic approach, including OSLog based logging and advanced debugging of request flows.

Nice to have:

• Experience with device binding and attestation.
• Knowledge of enterprise iOS and MDM environments.
• Familiarity with Secure Enclave and secure key management.

• Build an iOS component responsible for secure communication, protocol handling, and certificate-based authentication.
• Implement provisioning flows, certificate download, binding logic, and secure mTLS connections.
• Integrate the solution with backend APIs and diagnostics.
• Ensure resilience to network variability and iOS lifecycle events.
• Implement high quality logging using OSLog and provide detailed request/timeline debugging.
• Work with partial or evolving protocol specifications and refine implementation through experiments, logging, and integration tests.
• Collaborate with backend, infrastructure, and security teams.

Please be informed that the data controller is ALTIMI. You have rights to your personal data including access, rectification, erasure, and others, with personal data processed for recruitment purposes in compliance with legal obligations and consent.