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Andrii Pervashov
Full-Stack Developer
[open contact info](look above in the "contact info" section) | [open contact info](look above in the "contact info" section) | [open contact info](look above in the "contact info" section) | Košice, Slovakia

SUMMARY
Full-Stack Developer with 3+ years of experience building fintech and SaaS products, freelance projects end-to-end using
React, TypeScript, Node.js, and Python.
Delivered investment platforms, Shopify apps, enterprise integrations, and financial data pipelines, including authentication
flows and AI/API integrations.
Drove measurable business impact: processed 200k+ financial records/day, cut document processing time by 90%, and
lifted average order value by up to 12% across 250+ merchants.
Experienced in Agile teams, code reviews, and engineering hiring; certified in Building with the Claude API (Anthropic).

SKILLS
Frontend: React, TypeScript, JavaScript, Redux Toolkit, TailwindCSS, Material UI, Next.js, HTML5, CSS3, SCSS
Backend: Node.js, Express, Fastify, Python, AWS Lambda, Prisma ORM, Mongoose, PostgreSQL, MongoDB
APIs & Data: GraphQL, REST API, WebSockets, OpenAPI, JWT, Okta, Salesforce API, Shopify APIs
Tools: Jest, React Testing Library, Docker, Git, GitHub Actions, CI/CD, AWS, Azure, Figma
AI Tooling: Claude Code (1yr), Cursor (2.5yr), Codex (3yr)
Languages: English, Ukrainian, Slovak

EXPERIENCE

Full-Stack Software Engineer Jun 2025 – Present
INSART — Fintech / Alternative Investments (2 products, teams of 3 and 15) New York, United States (Remote)
• Enabled reliable processing of 200k+ financial records/day by building a Python data orchestration pipeline for
aggregation, transformation, and distribution across platform services.
• Expanded the investment platform with end-to-end support for joint transactions, delivering a new transaction type with
parent-child tracking for multi-leg investments.
• Reduced document processing time by 90% (10 min → 1 min) by automating Salesforce-backed workflows with a
custom React table builder.
• Reduced AWS Lambda compute costs by $5k/month by introducing user-controlled cancellation for long-running
executions.
• Supported engineering hiring by screening 20+ candidates, designing technical interview questions, and providing
written hiring recommendations.
Software Engineer Oct 2022 – May 2025
SmartFlowLabs — Shopify SaaS Agency Quebec, Canada (Remote)
• Lifted average order value by 8% and cut checkout-related support tickets by 80% across 250+ merchants by building a
dynamic cart rule engine for merchant-defined stock, payment, and shipping conditions.
• Drove a 22% increase in email/SMS capture and a 17% drop in cart abandonment across 300+ Shopify stores by
engineering gamified exit-intent popups (Spin Wheel, Pick-a-Gift) with custom trigger logic.
• Boosted conversion rates by 23% and cut experiment setup time from 2 days to 2 hours by designing a scalable A/B
testing framework with feature-flagging and a real-time analytics dashboard.
• Raised average order value by 12% and improved offer acceptance rate by 7% by shipping post-purchase upsell flows
powered by purchase-history-based recommendations.
• Cut API payload size by 20% and eliminated overfetching across all Shopify SaaS applications by migrating REST
endpoints to a GraphQL data layer.

EDUCATION

Technical University of Košice Košice, Slovakia
Master’s Degree in Computer Science 2025 – 2027

Technical University of Košice Košice, Slovakia
Bachelor’s Degree in Computer Science 2022 – 2025