Staff iOS Engineer

build+ • Japan
Visa Sponsorship Relocation
Apply
AI Summary

The Staff iOS Engineer will take complete technical ownership of the iOS architecture and client-side development for a global consumer platform. The ideal candidate will have 10+ years of iOS experience and deep, proven experience architecting and scaling complex iOS applications. The role requires leadership capabilities, execution at startup speed, and the ability to navigate high ambiguity.

Key Highlights
Technical ownership of iOS architecture
Leadership capabilities
Execution at startup speed
Key Responsibilities
Design the mobile system
Establish iOS engineering standards
Collaborate closely with a world-class engineering team
Technical Skills Required
iOS
Benefits & Perks
Up to 25M JPY annual salary
Pre-IPO stock options
Visa sponsorship
Relocation package
Nice to Have
Conversational Japanese

Job Description


Company Description

Our client is a fast-rising AI startup creating their own proprietary LLM that is searching for a Staff level iOS Engineer for its B2C-focused mobile app. The primary language would be English (conversational Japanese would be a plus but not strictly required). The salary would be up to 25M JPY / annum and you'd work on a hybrid system of 2-3 days a week in office. Pre-IPO stock options would also be offered depending the on the person. For those located overseas it would require relocation to Japan (with visa sponsorship provided).


Position Description

This position takes complete technical ownership of the iOS architecture and client-side development for an upcoming global consumer platform driven by advanced, proprietary AI. As a Staff-level technical leader, you will design the mobile system, ensuring high performance, scalability, and seamless integration with complex LLM and multi-modal AI agent APIs. You will establish iOS engineering standards, drive rapid 0→1 prototyping through to large-scale production, and collaborate closely with a world-class engineering team to deliver a highly responsive, intuitive mobile experience for global markets. This would be leading a team of 2-3 with a few more hires in the future.


Ideal Candidate

  • Technical Expertise: 10+ years of iOS experience
  • Staff-Level Qualifications: Deep, proven experience architecting and scaling complex iOS applications from scratch, ideally within modern consumer tech or hyper-growth startups.
  • Execution at Startup Speed: The ability to navigate high ambiguity and deliver Big Tech-level code quality at the speed of a pre-launch startup.
  • Leadership Capabilities: ideally having experience leading a team at a staff or similar level in the past


Why Join?

+Massive Financial Backing: Excellent funding allowing for a multi-year runway and deep stability without losing startup speed.

+Silicon Valley-Tier Perks: Enjoy premier compensation paired with highly progressive benefits

+True Work Flexibility: Complete flextime with a permanent, country-wide remote option, fully supported by relocation packages and ongoing global language programs

+Define Next-Gen AI: Move past standard API wrappers to design foundational interfaces for actual next-generation intelligence


Similar Jobs

Explore other opportunities that match your interests

Visa Sponsorship Relocation Remote
Job Type Full-time
Experience Level Mid-Senior level

build+

Japan

Android Engineer

Mobile
•
1w ago
Visa Sponsorship Relocation Remote
Job Type Full-time
Experience Level Associate

g talent

Japan

Platform Engineer

Mobile
•
3w ago
Visa Sponsorship Relocation Remote
Job Type Full-time
Experience Level Mid-Senior level

g talent

Japan

Subscribe our newsletter

New Things Will Always Update Regularly