iOS Developer

About Altimi

Altimi is a technology acceleration partner with impressive experience spanning over 20 years, specializing in the successful delivery of software development projects for international customers. We are based in Poland. Our main area of operation is the DACH region and Scandinavia, where we are known for providing top-notch software development services.

Our primary focus are managed services for companies seeking to accelerate growth, solve complex tech problems, build MVP/POC and/or modify legacy infrastructures.

The main area of competence include Product & Application Engineering, DevOps, Cloud Security & Managed Services and AI & Data Enablement.  

Role Overview

We are looking for an experienced iOS Developer to join a project focused on building advanced cybersecurity and IT infrastructure components. The role involves developing secure communication flows, handling certificates, integrating with backend services, and creating a lightweight control interface. RDP engine integration / C/C++ is out of scope for this role 

The project aims to to deliver iOS control component for secure remote access. Protocol implementation, provisioning, certificate-based authentication, and a lightweight control UI.

Responsibilities

• 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. 

Requirements

• 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/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/attestation.

• Knowledge of enterprise iOS / MDM environments.

• Familiarity with Secure Enclave and secure key management. 

Whats in it for you?

• Join for a role, stay for the development: More than 40% of our team is working with us longer than 5 years. Explore diverse domains, projects and modern technologies through internal mobility.

• Learn from the best: Almost 60% of all our colleague has over 10 years of professional experience.

• Flexibility: Work fully remotely, full-time from our office in Wroclaw or in a hybrid model.

• Practical benefits: private medical care, life insurance, sport card.