Senior iOS/macOS Developer

BIScience is an Internet technology company pioneering the world of digital media and audience intelligence with innovative technologies, harnessing user-centric data at scale to bring new insights into the online marketing industry and audience analytics. Ourproduct suite helps online marketers, media buyers, brand managers, sales managers, and business analysts benchmark marketing and advertising effectiveness, perform digital behavioral journey analysis, get an outlook on competitive intelligence, purchase intent, brand engagement, eCommerce activities, and analyze targeted and behavior-based online information.

BIScience is a fast-growing global company with customers from more than 60 markets, including fortune 500 companies.

Position Overview
Were looking for a Senior iOS/macOS Developer to work with a hyper-growth consumer panel product with over 5 million users worldwide, represented on all main platforms: Web, Windows, Android, iOS and macOS. You will work closely with a Product manager, UI/UX design team, and R&D.

What You'll Do:
- Develop and maintain native iOS and macOS applications
- Architect and implement new features from the ground up
- Stay in immediate contact with Product and R&D
- Optimize app performance, reliability, and security across Apple platforms
- Collaborate closely with Product, UI/UX, and other platform teams

Requirements:
- 5+ years of professional experience in Swift and Objective-C
- Experience with modular architectures and SOLID/Clean Architecture principles
- Familiarity with Apple privacy guidelines, background execution, app lifecycle, and
- App Store deployment
- Proficiency in RESTful APIs, JSON, SSL/TLS, and other network protocols
- Experience with Git, Xcode Instruments, and crash reporting tools (e.g., Firebase Crashlytics)
- Upper-intermediate English

Nice to Have:
- Experience building VPN/proxy solutions on Apple platforms
- Familiarity with C++, Objective-C++, or Swift bridging for cross-platform integrations

What's for you:
- Autonomy to implement solutions, drive development practices and approaches
- Impact: you see your influence on the business and the product
- Transparent communication: have a say and influence decisions
- Supportive atmosphere: we care about our people
- Premium medical insurance, high educational budget, and much more!

You're:
- Working well autonomously,
- Having a product mindset and highly developed communication skills,
- Technical solid expert in your domain,
- Knowledge-seeking & committed person.