Mobile Application Engineer (PSR-8273)
Mobile Application Engineer (PSR-8273)
Job type:
Haken
Specialization:
Software/Web Development
Language Level:
English Level - Advanced (TOEIC 860), Japanese Level - None
Location:
Futako-Tamagawa
Salary:
¥3,500.00 - ¥4,000.00 Hourly
Job Reference:
504457
A Global IT Service firm is looking for Mobile Application Engineer in Membership Platform Department. The Membership Platform Department (MPD) is thinking big: we create scalable platforms that power the firm Ecosystem worldwide.
Responsibilities:
- Design, develop, and maintain the EKEYC Mobile SDK for iOS, with additional support for Android
- Build high-performance, secure, and reusable SDK components for external integration
- Work closely with backend, security, and product teams to define SDK interfaces and behaviors
- Optimize SDK performance, memory usage, and stability across different devices and OS versions
- Ensure SDK compliance with App Store / Google Play policies and privacy regulations
- Write clear documentation, sample code, and integration guides for SDK users
- Participate in code reviews, technical discussions, and architecture design
Required skills:
- 5+ years of experience in mobile development
- Strong expertise in iOS development using Swift and/or Objective-C
- Solid understanding of iOS system architecture, lifecycle, memory management, and multithreading
- Experience developing SDKs, frameworks, or system-level libraries
- Familiar with iOS security mechanisms (Keychain, Secure Enclave, data encryption, etc.)
- Strong debugging and performance optimization skills
- Good communication skills and ability to work in cross-functional teams
Why should you apply:
- This is a long-term opportunity with a chance to become a permanent employee
- You will be working with international team members
- Free breakfast, lunch and dinner at the cafeteria
Company Details:
A global company with a strong presence in multiple business areas. It has achieved sustained growth both domestically and internationally, including in the U.S. and Europe. The company boasts a diverse and international environment and is committed to equal opportunity, offering a wealth of career opportunities. Due to the diverse nature of our business, we handle a wide range of technologies! You can also choose the environment you are most comfortable with, such as Windows/Mac! Meals in the company cafeteria are also free. Our chefs are always coming up with new menu items, so you can enjoy your meal without getting bored!
Working hours: 9:00 - 17:30 (Mon-Fri)
Working Style: Hybrid (4 days in office, 1 day work from home)
Holidays: Saturday, Sunday, and National Holidays, Year-end and New Year Holidays, Paid Holidays, Other Special Holidays
Services/Benefits: Social insurance, DC Pension Plan, Transportation Fee, Skillhouse University, Test payback system, and more
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