Дмитрий User
@user238
Senior software engineer specializing in React Native and performant, secure blockchain-integrated apps.
Russian FederationWhat I'm looking for
I’m a Senior Software Engineer with 9+ years of experience in frontend and mobile development (React Native, React). I’ve worked across FinTech, E-commerce, IoT, and Web3, with a strong client-side focus—while staying ready to step into a full-stack role and take on backend tasks.
I actively leverage AI tools to automate boilerplate and routine tasks, so I can focus on what I value most: designing decoupled architecture, managing memory efficiently, and optimizing app performance. In practice, I aim for maintainable code and a smooth user experience—whether I’m acting as a solo developer for a specific feature or collaborating in a small, flat team.
At Trevo Finance, I designed and single-handedly developed the Trevo UI ecosystem for tokenized real-world assets (RWA) on the Trevo blockchain. I built Trevo Token Studio (web admin platform) and Trevo Wallet (React Native cross-platform mobile app), and I also architected backend microservices with Node.js/Express, including a secure stateless Metadata Service and a custom Price Feed API backed by MongoDB.
Previously at TRAIT Tech and Mercury Development, LLC, I developed cross-platform cryptocurrency and mobile applications, including an offline transaction building and signing flow to improve mobile performance and memory usage. I also led a mobile development team at Mercury, building a React Native app that integrates with IoT hardware via Bluetooth Low Energy (BLE), delivering real-time calibration and consistently smooth 60fps UI through scalable state management.
Experience
Work history, roles, and key accomplishments
Designed and single-handedly developed Trevo UI ecosystem for tokenized real-world assets (RWA) on the Trevo blockchain.
- Mobile & Web Frontend: Built "Trevo Token Studio", a web platform for administrators to manage RWA assets using secure offline QR-based transaction signing. Developed "Trevo Wallet", a React Native cross-platform mobile app for end-users, integrating KYC and blockchain APIs.
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- Mobile Wallet Development: Developed a cross-platform mobile cryptocurrency wallet for the Polkadot/Substrate ecosystem using React Native and TypeScript.
- Optimized Blockchain Interactions: Engineered an offline transaction building and signing flow that avoids heavy blockchain client libraries, drastically improving mobile performance and memory usage.
- State & Data Management: Implemented c
- Team Leadership: Led a mobile development team in building a complex cross-platform React Native application from the ground up. Conducted code reviews, mentored engineers, and established efficient agile workflows.
- IoT & Hardware Integration: Architected the interaction layer between the mobile application and the Opus SoundBed hardware using Bluetooth Low Energy (BLE), ensuring highly stable
Worked on bank application:
- Implemented form management and validation feature
- Integrated "vertifi" (https://www.vertifi.com) system for recognizing and verifying bank checks (integrated vertifi native library to react native)
- Implemented core features like money transfers between accounts, scheduled transfers, card lock/unlock/lost/stolen feature, adding external account, ect.
-Developed several investment financial applications from zero to production using experience from previous company applications
-Developed all sides of applications, reviewed and conducted timing estimation
-Set build process, CI system and certificates
-Upgraded review and tested processes in projects (as a lead)
-Upgraded documentation about review process in the company
Worked in Yandex.Taxi team ( React, Redux, Saga, Jest, TypeScript).
Dealt with such routine tasks as migration from JS to TS, migration from redux-think flow to redux-saga flow, refactoring big project, business tasks.
Was responsible for the front-end development of one small Modulbank project, and used such stack as: React, Mobx, Jest.
Wrote a common component base, common useful utils, and developed common Mobx and mobx-form components for other projects.
Wrote mobile application in React Native and part of back-end for service Hottler. Also supported many mobile application that company developed.
Deployed OSM map tile server, wrote client part for it used leaflet and jquery. Also wrote back-end and front-end for property management systems of the ministry in small groups. Worked generally for business tasks and little for a common component base.
Education
Degrees, certifications, and relevant coursework
Ufa State Aviation Technical University
Specialist, Computer and Information Systems Security
2012 - 2017
Jobs in Russia
Диплом специалиста по инженерной специальности, Безопасность компьютерных и информационных систем/защита информации
2012 - 2017
Tech stack
Software and tools used professionally
Availability
Location
Russian FederationAuthorized to work in
Job categories
Skills
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