Євген

Eugene Stepaniuk
Full Stack Developer
Kryvyi Rih, Ukraine · [відкрити контакти](див. вище в блоці «контактна інформація»)
[відкрити контакти](див. вище в блоці «контактна інформація»)
GitHub · LinkedIn

Summary
Full stack developer with 4+ years of experience in building enterprise-grade web applications
using Node.js, Express.js, React, and TypeScript. Specialized in document management systems
with backend and frontend architecture skills. Focused on clean code, scalability, and performance
optimization. Open to both on-site and remote opportunities.

Experience
KAI — Full Stack Developer
2019 – 2025 | Ukraine
Lead developer of a full-scale internal document management system used by enterprises.
Designed and implemented both backend and frontend solutions from scratch.
Key responsibilities and achievements:
- Built core functionality: document creation/editing, registry management, digital signature
integration, scanning, and barcode/QR processing
- Integrated email services to fetch and archive documents from user inboxes
- Developed admin panel with fine-grained role-based access and customizable user settings
- Implemented secure internal/external signing using digital signature modules (CEP)
- Optimized database queries using indexing techniques to reduce response time
- Designed dynamic UI components using Ant Design and React Context for scalable and
maintainable code
- Reviewed code across the team and implemented internal coding standards
Tech stack:
Node.js, Express.js, React, TypeScript, Sequelize, MS SQL, Ant Design

Education
STEP IT Academy — Software Development
2017 – 2019
Kyiv National Economic University — International Economics
2009 – 2014
National Transport University — Organization and Management of Vehicles
2009 – 2013
Tech Skills
Languages & Frameworks: JavaScript, TypeScript, Node.js, React, Express.js, Next.js
Databases: PostgreSQL, MS SQL, MongoDB, Prisma, Sequelize
Tools & Libraries: Ant Design, Material UI
Other: REST APIs, Git, GitHub, Clean Code, Code Reviews, Optimization, Email integration, Digital
signature modules (CEP)

Languages
English — Pre-Intermediate (confident reading, improving speaking)
Ukrainian, Russian — Native

Highlights
Full ownership of an enterprise-level document management system
Backend optimization and dynamic frontend UI building
Adaptable to new tech and open to cross-platform development (Flutter, mobile)