Тарас

Taras Sarakhman
Fullstack Developer — React / Next.js / Node.js / TypeScript
Lviv, Ukraine | [відкрити контакти](див. вище в блоці «контактна інформація») | [відкрити контакти](див. вище в блоці «контактна інформація») | [відкрити контакти](див. вище в блоці «контактна інформація») | github.com/Sh1n0a22

SUMMARY

Fullstack Developer with 2+ years of production experience building web applications end-to-end in JavaScript/TypeScript, React,
Next.js, and Node.js (Express, NestJS). Comfortable owning features from architecture through deployment: designing RESTful APIs,
modelling data in PostgreSQL/Redis and NoSQL stores, containerizing services with Docker, and shipping to cloud environments
(GCP, Vercel, Netlify). Experienced with authentication & authorization (JWT/OAuth), state management (Redux, Zustand),
microservices-style BFF architecture, real-time systems (WebSockets), and Git-based team workflows. Actively uses AI coding
assistants (GitHub Copilot, Cursor, Claude Code) daily for scaffolding, refactoring, test generation, and debugging. Adapts quickly to
new stacks and works well directly with clients and cross-functional teams to scope, estimate, and deliver features.

TECHNICAL SKILLS

Languages: JavaScript, TypeScript, SQL, HTML5, CSS3
Frontend: React.js, Next.js, Redux (RTK Query), Zustand, Tailwind CSS, shadcn/ui, MaterialUI, responsive & cross-browser UI
Backend: Node.js, Express.js, NestJS, RESTful API design, WebSockets, JWT/OAuth-based auth, Supabase (incl. Edge Functions)
Databases: PostgreSQL, Redis, NoSQL / document-store patterns
DevOps & Tools: Docker, Git & GitHub workflows, CI/CD-style deployment (Vercel, GCP, Netlify), code review
AI-Assisted Development: GitHub Copilot, Cursor, Claude Code — daily use for code generation, refactoring, debugging, and test
scaffolding; prompt engineering for dev workflows
Architecture: Microservices-oriented BFF layers, event-driven pipelines, real-time data pipelines
Languages spoken: Ukrainian (Native), English (Fluent)

EXPERIENCE

Fullstack Developer — Freelance — Algorithmic Trading Platform Apr 2026 – Jul 2026
Next.js, TypeScript, NestJS, PostgreSQL, Redis, Docker, GCP
• Architected and deployed a production-grade algorithmic trading bot executing real-time trades on Binance Futures via RESTful
exchange APIs, streaming market data and routing ML-driven decisions.
• Built a WebSocket data pipeline ingesting tick-level market data with dual-layer persistence — Redis (NoSQL, sub-second reads)
and PostgreSQL (durable historical storage and backfill).
• Designed time-windowed candle aggregation logic handling timezone boundaries, missing data, and subscription gaps.
• Implemented JWT-based authentication & authorization with encrypted credential storage, enabling multi-user support with
isolated trading permissions.
• Built a responsive trading dashboard (Next.js, TypeScript, shadcn/ui) with type-safe end-to-end API contracts between the
NestJS backend and Next.js client, and real-time price polling.
• Containerized the backend pipeline with Docker for consistent local and production environments; managed CI/CD-style
deployment — frontend to Vercel, backend to GCP.

Fullstack Developer — Berko Tech — Optiqo (Cleaning Ops Platform) Feb 2026 – Apr 2026
React, Capacitor, Java (Android), Swift (iOS), Supabase Edge Functions
• Maintained a single React codebase compiled to web and mobile via Capacitor; diagnosed and fixed native-layer bugs in
generated Java and Swift code and Capacitor/WebView integration issues.
• Implemented NFC card scanning for field asset tracking, reading and writing operation data via native APIs in real time.
• Architected Supabase Edge Functions (TypeScript + Postgres triggers) as an event-driven pipeline for real-time push
notifications, eliminating polling.
• Coordinated TestFlight and Play Store releases, including code signing and staged rollouts as part of the CI/CD release process.
• Reduced manual dispatch time by ~30% through mobile-first task assignment and card-based asset verification.

Frontend Developer (Agency Contractor) — Appexoft Sep 2024 – Feb 2026
Embedded as contract frontend developer across 4 concurrent client engagements, 2–4 months each
 • Tax Management Platform (React/TS, Tailwind): implemented cursor-based client-side pagination to cut initial DOM payload
and enable smooth scrolling on resource-constrained devices; resolved a cross-browser bug affecting Safari and mobile;
achieved sub-3s LCP on 3G via lazy-loading and progressive enhancement.
• Crypto Trading Platform (Next.js, JavaScript, Tailwind): diagnosed and fixed race conditions in real-time price-feed subscriptions;
modernized callback-heavy legacy code to Promise-based patterns with centralized error handling; shipped feature-flagged
rollouts with backend and product teams.
• Tax & Accounting AI Copilot MVP (React/TS, Tailwind): proposed the stack and built a modular component architecture (Context
+ custom hooks); built a regex-based markdown transpiler converting LLM output into interactive UI; implemented client-side
encryption for sensitive documents and resumable upload middleware.
• Restaurant CRM System (Next.js/TS, Tailwind, shadcn/ui, Netlify): designed a reusable component library (dashboards, CRUD
forms, tables, filters); built a BFF layer aggregating multiple backend services into unified RESTful endpoints with centralized
auth, rate-limiting, and error handling; implemented optimistic updates, Zod schema validation, and offline mode with
retry/backoff; configured build/deploy pipeline for production release on Netlify.

EDUCATION

B.S. in Software Engineering — Lviv Polytechnic National University 2024 – 2028