Denis

Denis Bulava
Software Engineer
[відкрити контакти](див. вище в блоці «контактна інформація») Telegram - @qlurg

SUMMARY

Ready to work with new technologies and libraries. Can mentor and provide guidance to team
members. Able to effectively self-manage.

SKILLS

Frontend: Angular, RxJs, NgRx, Redux, Zustand, React, Axios, Tanstack Query, TypeScript, Pixi.js, PrimeNg, Material
UI, Bootstrap
Backend: Node.js, NestJS, PostgreSQL
Other: Solidity, C# (Unity), ComfyUI, n8n

EXPERIENCE

Fullstack Developer May 2025 - Present
Freelance · CRM System; AI Call Review Platform; GameDev
• Developed data-intensive interfaces (dashboards, tables) with filtering, pagination, and real-time updates
• Integrated LLMs and agent-based workflows to automate calls classification and summarization
• Implemented multi-CRM integrations for seamless data synchronization across platforms
• Collaborated with stakeholders to translate business requirements into intuitive, production-ready solutions
• Technologies: Angular, Signals, RxJs, Nest.js, PostgreSQL, n8n...

Front-end Developer Jun 2021 - May 2025
Questera · Esports Challenge & Play-to-Earn Platform
• Implemented core application modules and supported delivery of side projects
• Developed complex UI components such as data tables, animations, and reusable interface modules
• Participated in API compliance reviews and validation processes for secondary services
• Optimized application performance to achieve 90%+ Lighthouse scores across all core metrics
• Delivered technical consultations to external teams and mentored internal team members
• Took part in technical hiring processes, including candidate interviews and evaluation
• Technologies: Angular, Signals, RxJs, NgRx, Bootstrap, Jest, Three.js...

Frontend Developer Nov 2020 - Jun 2021
NikaCraft · Laboratory Management & Test Automation System
• Developed and maintained internal NPM packages to standardize frontend functionality across teams
• Designed and implemented reusable UI components and controls
• Built a web application from scratch, adopted by 50%+ of European automotive manufacturers
• Increased test coverage to 85%+
• Acted as a speaker in internal knowledge-sharing sessions, delivering technical lectures to engineering teams
• Technologies: Angular, RxJs, Redux, Bootstrap, Jest, internal libraries...
Frontend Developer Jul 2020 - Nov 2020
Freelance · Professional Networking Platform
• Built new features, including drag-and-drop interfaces and rich text editors
• Improved SEO performance, achieving 90%+ score through technical optimizations
• Increased application performance by 15% by optimizing data streams and state management
• Technologies: Angular, RxJS, NgRx, PrimeNG, Jest...

Frontend Developer Feb 2020 - Nov 2020
BSI · Social Review Platfowm
• Led development of an Angular PWA from scratch
• Participated in architecture planning and developed the main parts of the application
• Added camera support and related features
• Technologies: Angular, RxJs, Angular Material...

Frontend Developer Aug 2019 - Jan 2020
Grechka · Web Studio
• Designed and implemented interactive front-end features, including polls, dynamic charts, and drag-and-drop
components
• Developed scalable, reusable UI components and complex form workflows
• Technologies: Angular, React, RxJS, Chart.js, Bootstrap, Materialize...

LANGUAGES

English (Advanced)

EDUCATION

NUFT Sep 2015 - May 2021
Master's Degree in Industrial engineering