Careers
Build characters
that feel alive.
We are a small team building proprietary AI character technology in Hong Kong. Memory systems that grow. Models that hold personality. Characters that people want to talk to. If that sounds like something you want to be part of, we should talk.
Why CortexBit
Reasons to join.
Work on real IP
Not a wrapper around an API. You will work on proprietary memory systems, character models, and platform architecture that are genuinely hard to build.
Small team, direct impact
Every person who joins shapes the product. No corporate layers, no diluted ownership, no meaningless meetings. Your work ships.
Asia-first mission
We are building for Singapore, Malaysia, Hong Kong, Japan, Korea, and China. If you are excited about APAC markets and their unique chat culture, this is where it happens.
Remote-friendly
Hong Kong is our home base, but we hire across the APAC region. Work from where you do your best work, with regular team syncs.
Creative and technical
CortexBit sits at the intersection of deep engineering and creative character design. If you love both, you will find your people here.
Early stage, high upside
We are pre-launch with production-ready technology. Join now and help define what the company becomes.
Open Roles
Positions we are hiring for.
Do not see your exact role but think you should be here? We are always open to exceptional people. Write to us.
AI Data and Software Engineer
Full-timeHong Kong / Remote (APAC)Build and operate the data pipelines and backend services that power our character platform. Work with large-scale graph and vector data, real-time memory systems, and multi-tenant architectures.
ML Engineer
Full-timeHong Kong / Remote (APAC)Develop and optimize the character interaction model pipeline. Work on prompt engineering, model evaluation, emotional state modeling, and multilingual character behavior across 10 languages.
AI Artist
Full-time / ContractHong Kong / RemoteCreate visual identities for AI characters using AI-assisted tools and traditional techniques. Design portraits, expressions, style guides, and visual assets that define how characters look and feel.
Character Creator
Full-time / ContractRemote (APAC)Author the personalities, backstories, and behavioral profiles that define our characters. Work with the APB platform to bring characters to life with 100+ personality parameters and rich life histories.
Creative Writer (Japanese / Korean)
ContractRemote (Japan / Korea)Create character content, dialogue samples, and scenario scripts for the Japanese and Korean markets. Ensure cultural authenticity and natural language quality for localized character experiences.
Do not see a fit? We are always interested in meeting talented people who care about AI, characters, and the APAC market.
Send us your profileHow We Hire
Simple, fast, respectful.
Reach out
Send us a note about who you are and what role interests you. No formal cover letter needed.
Conversation
A relaxed call with the team. We talk about your work, our product, and whether it is a fit on both sides.
Practical step
For technical roles, a small project or code review. For creative roles, a portfolio review or brief exercise.
Decision
We move fast. Usually within a week of the practical step, you will have a clear answer.
Ready to build something real?
We are based in Hong Kong SAR and hiring across the Asia-Pacific region. Write to us and tell us what you want to build.