Nazar

Nazar Bodnar [open contact info](look above in the "contact info" section)
[open contact info](look above in the "contact info" section)
Full-Stack Developer LinkedIn | GitHub
Lviv, Ukraine Telegram: @nazlo90

PROFILE

Full-Stack Developer with 10+ years of experience building high-performance web applications across
FinTech, SaaS, and Data Analytics. Proficient in Angular, React, Node.js, NestJS, TypeScript, and cloud
platforms (AWS, Supabase, Vercel). Proven track record: 45% reduction in load times, 40% decrease in
API traffic through optimized state management and efficient architecture.
Strong experience in designing scalable fullstack systems, reusable component libraries, and
RESTful/GraphQL APIs.
Actively uses AI-assisted development tools (GitHub Copilot, Claude Code) to accelerate delivery. Mentored
engineers and introduced code review practices, improving defect detection and overall team productivity.
English - Advanced (C1), actively used in international project communication.

SKILLS

Frontend: Angular, React, Vue.js, JavaScript, TypeScript, RxJS, NgRx, SignalStore, Redux
Backend: Node.js, NestJS, Express, REST APIs, GraphQL, Microservices, Docker
AI / LLM: OpenAI API, LangChain (ChatOpenAI, ChatPromptTemplate, JsonOutputParser), prompt
engineering, token cost tracking, model-switching logic, Claude Code, GitHub Copilot,
Cursor
Cloud & DB: AWS, Firebase, Vercel, Supabase, MongoDB, PostgreSQL
Testing: Jest, Jasmine, Cypress, Vitest, Playwright
DevOps: GitHub Actions, CI/CD, Webpack, Vite, Nx
Design & UX: HTML5, CSS3 (SCSS/Tailwind), Material UI, Highcharts, D3.js, PWA, Figma

PROFESSIONAL EXPERIENCE

NDA | Nov 2025 – Present
Full-Stack Developer | Public Sector / Civic Organization
•​ Built a full-stack applicant management platform: public-facing landing with multilingual support
(i18next, UA/EN) and admin CRM panel for end-to-end applicant tracking.
•​ Integrated Supabase (real-time DB + auth), Cloudflare Turnstile (bot protection), Upstash Redis (API rate
limiting).
•​ Delivered JAMstack architecture on Vercel CDN - fast load times and zero-downtime deployments.
•​ Admin panel with Ant Design v5, supporting full lifecycle management of incoming applications.
•​ Integrated OpenAI API for AI-powered content assistance - auto-classification of incoming applications
and draft generation for admin responses.
•​ Implemented structured prompt templates with JsonOutputParser to enforce consistent LLM output;
addressed hallucination issues through 5+ prompt iterations.
Hygge | Jun 2023 – Nov 2025
Full-Stack Developer | Education, Healthcare, Data Analytics
•​ Built a cross-platform analytics platform for factory institutions, visualizing 50k+ records in real time via
WebSocket-powered live data streams.
•​ Architected reusable UI libraries across 3 projects, cutting new feature delivery time by 35%.
•​ Built full AI integration layer: OpenAI API (direct) + LangChain (ChatOpenAI, ChatPromptTemplate,
JsonOutputParser) with chain composition for AI-driven analytics insights.
•​ Conducted 7+ prompt engineering iterations to eliminate hallucination and enforce JSON consistency;
implemented per-user token tracking and model-switching (GPT-4o / GPT-3.5) for cost optimization.
•​ Built async Python/Flask chatbot backend: task queuing with polling endpoint, conversation history
management, OpenAI TTS integration, deployed via Docker.
•​ Implemented backend services with NestJS and Docker; managed AWS deployments.
•​ Implemented offline-first strategies (IndexedDB + service workers), enabling 100% functionality in
low-connectivity environments.
•​ Mentored 2 junior developers, introduced code review process - defect detection improved by 40%.

JetSoftPro | Mar 2021 – Jun 2023
Frontend Developer | Retail Execution
•​ Led a 4-person frontend team delivering enterprise retail platform used by 20+ US CPG brands.
•​ Reduced API call redundancy by 50% with NgRx, improving app responsiveness.
•​ Spearheaded framework migration to Nx monorepo, reducing initial bundle size by 40%.
•​ Improved user retention by 25% through tablet/mobile optimization for field agents.

Cognizant Softvision | Aug 2019 – Mar 2021
Frontend Developer | FinTech / Audit Platform
•​ Delivered a multi-tenant SaaS platform for automated financial auditing in the US market.
•​ Built reusable UI modules reused across 4 teams, increasing velocity by 30%.
•​ Added unit test coverage to 85%, reducing post-release bugs by 60%.

Morebis | Nov 2018 – Aug 2019
Frontend Developer | SaaS - Beauty Industry
•​ Developed Meevo - cloud-based scheduling & CRM solution used by 10,000+ businesses in North
America.
•​ Increased usability scores from 3.8 to 4.7 via drag-and-drop scheduling UI improvements.

Coding Ninjas / SiteKafe / Studio Creative | Jan 2015 – Nov 2018
Full-Stack Developer
•​ Delivered 20+ custom websites for SMEs, achieving 90+ Lighthouse scores and cross-browser
compatibility.
•​ Introduced BEM methodology and automated builds, reducing delivery time by 25%.

EDUCATION

Lviv Banking Institute - Master's Degree, Economic Cybernetics | Lviv

LANGUAGES

Ukrainian - Native | English - Advanced (C1)