Mark Monheit

Senior Frontend Engineer with 6 years of experience building customer-facing web products in TypeScript, Vue and Node.js. Drove a fintech platform's 20x growth in managed assets by owning its design system and brand identity end-to-end. Launched 3 projects on a shared tech stack providing configured tooling, built-in translation system, accessibility and code quality gates.

Frontend Developer at Puzzlebot (2025-02 – Present)

• Improved SVG rendering performance 10x (5 to 50 FPS) on overloaded scenes with mid-end devices, by layer separation, culling, caching, and removing costly DOM calls per frame
• Provided 100% drop-in for an advanced rich text editor module and ported full feature set from native Telegram editor, leveraging headless TipTap 3 extension system

Product Engineer at IMI Group (2023-06 – 2024-11)

• Scaled a multilingual B2B marketplace discovery-platform from concept to acquisition, co-creating API contracts through close collaboration across Backend, Product and Design
• Delivered 3 independent projects end-to-end on a shared stack, cutting scaffolding time by 80% from initial concept through CI/CD and staging deployment
• Raised Core Web Vitals scores to a consistent 93+ by introducing SSR and Backend-for-Frontend architecture, treating client-side JS as optional progressive enhancement

Frontend Engineer at Midas Investments (2020-03 – 2023-04)

• Uncovered 3k+ latent errors across 50k lines of code by enabling strict TypeScript, type-aware ESLint, Stylelint gated by lint-staged and git hooks - drove them down to zero over 6 sprints
• Streamlined translation turnaround of 11k strings in 3 languages – saving ~4 hours per week by migrating from spreadsheets and eliminating engineer involvement
• Ensured precision across financial calculations by eliminating IEEE 754 floating-point errors, applying decimal arithmetic with Big.js math
• Cut JS and API errors by 80%, as monitored with Sentry, by leading 4 major migrations and resolving cumulative technical debt
• Led architecture and technical decisions after becoming the first frontend hire, taking over responsibilities previously managed by the CTO

Selt-taught for 20+ years