Tokyo NoxMap
Your Role
Build and refine the PlayHaus mobile app (UI/UX) with React Native or Flutter.
Design and implement the backend (APIs, database, authentication, real-time services).
Integrate location services (Google Maps API, geofencing, Bluetooth proximity if possible).
Implement real-time features like messaging and presence indicators.
Ensure smooth performance across iOS + Android.
Optimize for scalability, speed, and data security.
Collaborate directly with the founder to shape features and roadmap.
Requirements
Proficiency with React Native (preferred) or Flutter for cross-platform app dev.
Backend experience with , Express, Firebase, or similar stack.
Knowledge of databases (Firebase, MongoDB, PostgreSQL).
Experience with real-time communication (WebSockets, Firebase RTDB, GraphQL subscriptions).
Solid understanding of authentication, authorization, and data security.
Ability to own projects end-to-end and work independently.
Passion for App Development
Nice-to-Haves
Prior experience building social, dating, or location-based apps.
Familiarity with cloud platforms (AWS, GCP, Firebase).
Deployment experience (App Store + Google Play).
What You'll Get
Freedom to shape tech stack, architecture, and features.

Startup culture:
fast-moving, hands-on, high-impact.

Future growth opportunities (lead developer → CTO) + possibility for equity.
Letter of Recommendation

Show more Show less

  • Tokyo, Tokyo Avanade ¥9,000,000 - ¥12,000,000 per year

    Webアプリ開発案件におけるアプリケーションアーキテクトを担当します。 · アーキテクチャプロトタイプの作成・検証 · 開発標準を策定・実装・展開 · アーキテクチャ領域におけるエキスパートとして、アーキテクチャや現在の技術環境を継続的に分析・レビューし、改善案を提示する · 業種を問わず、Webアプリ開発案件におけるアプリケーションアーキテクト · ...


  • Tokyo, Tokyo Avanade ¥900,000 - ¥1,500,000 per year

    AIエージェントのアーキ設計・最適化、Azure OpenAI / AI Services / AI Foundryを用いた本番向け方式設計・実装規約・評価テンプレート・リファレンス実装の資産化と展開 · 提案(課題同定、方式案、見積、PoC設計、デモ)およびステークホルダー調整 · ...


  • Tokyo NoxMap ¥4,300,000 - ¥6,500,000 per year

    We are seeking a Full Stack Mobile App Developer to build and refine our mobile app using React Native or Flutter. The ideal candidate will have proficiency with React Native, experience with backend development, knowledge of databases and real-time communication, as well as soli ...


  • Tokyo Michael Page

    世界的に展開する大手外資ITコンサルティング企業で働くチャンスです。年間80時間以上のトレーニングや認定資格取得支援など、キャリア成長を後押しする制度が充実しています。 · ...


  • Tokyo Michael Page

    中有【80古(1公,3立,出。 · り万¥7,300,000 ¥11,000,000 · ...


  • Tokyo Tech Mahindra ¥1,200,000 - ¥1,500,000 per year

    The candidate is expected to be comfortable with a high paced, technical oriented, partner and internal-facing ticket based support environment in English. · This includes being detail oriented, communicating in a professional and constructive manner, identifying efficiency oppor ...


  • Tokyo Btab Group ¥540,000 - ¥720,000 per year

    We are looking for a strong mobile app developer who welcomes both engineering and maintenance tasks. · Developing new features and user interfaces from wireframe models · ,Ensuring the best performance and user experience of the application · , Fixing bugs and performance probl ...


  • Tokyo Computer Futures ¥1,800,000 - ¥2,500,000 per year

    Join a fast-growing global tech company in the electric mobility sector as a Senior / Lead Full-Stack Engineer. We are building scalable EV charging solutions that combine hardware and software to power the future of transportation. · Lead technical aspects of backend dashboard p ...


  • Shibuya Startbahn, Inc. ¥2,500,000 - ¥5,000,000 per year

    We develop APIs, SDKs, web UIs that interact with Ethereum-based blockchain systems. You'll begin by working on our front-end and back-end development. If you're eager to dive deeper into web3 areas such as smart contracts, subgraphs, or IPFS, you'll also have the opportunity to ...


  • Shibuya-ku, Tokyo Startbahn, Inc. ¥80,000 - ¥125,000 per year

    We develop APIs, · SDKs, · web UIs that interact with Ethereum-based blockchain systems.Over 3 years of professional experience in full-stack web development with a focus on TypeScript for both front-end and back-end applications. · Familiarity with advanced concepts such as depe ...


  • Tokyo Tenth Revolution Group Full time¥1,000,000 - ¥2,000,000 per year

    We are seeking an experienced Full Stack Developer to lead our engineering team and drive the design, development, and enhancement of our web applications. · This role involves providing technical leadership, managing project delivery, and mentoring team members. ...


  • Tokyo, Japan AheadGroup

    Ahead Staffing seeks a Full Stack Developer for an E-Commerce client. The developer will integrate search and LLM technology into systems and prototypes. · ...


  • Shibuya Datadot Software Solution ¥900,000 - ¥1,200,000 per year

    We are seeking a highly adaptable and motivated FullStack Developer to join our team. · ...


  • Shibuya-ku, Tokyo Datadot Software Solution ¥4,000,000 - ¥12,000,000 per year

    We are seeking a highly adaptable and motivated FullStack Developer to join our team. The ideal candidate thrives in a dynamic environment, enjoys learning on the fly, and is capable of moving between multiple initiatives. · Designing, developing, and maintaining scalable applica ...


  • Tokyo Tech Mahindra ¥4,320,000 - ¥6,480,000 per year

    The candidate is expected to be comfortable with a high paced, technical oriented, partner and internal-facing ticket based support environment in English. This includes being detail oriented, communicating in a professional and constructive manner, identifying efficiency opportu ...


  • Tokyo Cabbage Systems ¥900,000 - ¥1,200,000 per year

    This is a contract-based remote role for a Senior Full-Stack Web Game Developer at Cabbage Systems, a game studio based in Tokyo. · Expertise in Front-End Development, including HTML, CSS (Cascading Style Sheets), and TypeScript. · Proficiency in Back-End Web Development, includi ...


  • Tokyo Computer Futures ¥8,000,000 - ¥12,000,000 per year

    Join a fast-growing global tech company in the electric mobility sector as a Senior / Lead Full-Stack Engineer. We are building scalable EV charging solutions that combine hardware and software to power the future of transportation. · Lead technical aspects of backend dashboard p ...


  • Tokyo, Tokyo CSI Interfusion ¥6,000,000 - ¥12,000,000 per year

    Develop and maintain core systems across both front-end and back-end, build scalable server-side logic, develop RESTful APIs, create responsive user interfaces, model and optimize queries, collaborate with product managers, designers, and other developers to drive project success ...


  • Tokyo Tenth Revolution Group Full time¥2,400,000 - ¥2,800,000 per year

    We are seeking an experienced Full Stack Developer to lead our engineering team and drive the design development enhancement of our web applications. · This role involves providing technical leadership managing project delivery mentoring team members.Lead end-to-end design develo ...


  • Tokyo Frontline Data Solutions

    We are seeking a Full Stack React and C# Developer to join our team. The successful candidate will have experience with React and .NET for backend development. · ...


  • Tokyo Black Pen Recruitment

    We are seeking a Senior Full Stack Developer who has hands-on experience in development and leads architectural discussions. · ...