Dmitry Ivanov

Consumer fintech serving 100K+ Canadian users — icash.ca loans, earna.zone savings.

• icash.ca — Core Web Vitals to 95+ PageSpeed via code-splitting, lazy loading, image pipeline

• earna.zone — designed and built the design system from scratch (Shadcn + Tailwind + Storybook)

• Rebuilt the loan contract flow — 40% drop-off reduction, validated by A/B test

• WCAG AA pass across the product — semantic HTML, ARIA, keyboard navigation

• Next.js/Vercel SSR stack, Contentful CMS, Firebase auth

3-month contract during pre-seed. Ran in parallel with starting at Brainfinance. Company is now valued $1B+.

• Shipped elevenlabs.io — Firebase auth, Stripe payments, 11ty

• Built a multiline waveform player with real-time Web Audio visualization

• Voice generation dashboard UI

Mobile point-of-sale fintech. Acquired by Apple in 2020; stayed through the transition and shipped Apple Pay features to iOS users globally.

• Samsung POS — tap-to-pay web app shipped globally in Samsung Wallet, PCI-DSS compliant

• Apple Pay Later — checkout widget with real-time calculations, A/B tested flows

• Apple Wallet provisioning UI flow and Business Registry portal

• Acquirer portal and admin tools used by 50+ financial institutions

• Spect — internal AOP framework for frontend state and component composition

• Template Instantiation polyfill — reference implementation for the W3C proposal

• E2E test suites in Cypress and Puppeteer

WebGL core of plotly.js — the open-source scientific charting library (17K+ stars, used across research and industry).

• WebGL renderers for scatter, line, and waveform traces — interactive at 1B+ points

• Point-clustering algorithm enabling real-time exploration of massive datasets

• Mobile build — touch interactions, responsive layouts

• Contributions to regl and the stack-gl ecosystem (modular WebGL)

• Visual regression harness covering 2000+ chart variants

Boutique web agency — performance-first client work.

• 10+ client sites shipped at 100/100 PageSpeed

• Wishbox.gift — Preact e-commerce platform with custom API

Cultural events platform across 15+ European cities.

• kudago.com desktop + mobile — <20KB JS bundle, 100/100 PageSpeed

• UX/UI and information architecture

Design + frontend for 15+ small/medium business sites — e-commerce, real estate, corporate, analytics dashboards.

Master

Bachelor

Technician

Courses

• Signal Processing

• Control Theory

• Electronics

• Instrumentation

Data-rendering fonts — draw waveforms and line charts as text. Used in production by plotly.js and others.

High-level audio workflow library for the web — playback, analysis, non-destructive editing. audio('voice.mp3').trim().normalize('podcast').fade(0.3, 0.5).save('clean.mp3') — chainable, streaming, tree-shakable.

• WASM codecs loaded on demand — no ffmpeg dependency

• Streaming playback begins during decode; page cache handles 10GB+ files

• Non-destructive virtual edits with instant undo

• Audio-first API — works in dB, Hz, LUFS, not byte offsets

• LUFS loudness, spectrum, peak, and descriptor analysis

• Pluggable op architecture; CLI with Unix pipes and tab completion

• Runs in browsers, Node, Deno, Bun

Open-source audio/DSP toolchain for the web — author and maintainer. Modular packages covering decode, encode, I/O, filters, effects, and the full signal path.

• web-audio-api — portable Web Audio API implementation; polyfill compatible with tone.js

• audio-decode / audio-encode — 13+ formats in Node and browser via WASM codecs

• audio-speaker / audio-mic — cross-platform audio I/O

• digital-filter — IIR/FIR/biquad/butterworth, smoothing, adaptive, multirate

• audio-filter — weighting curves (A/C/K), auditory, analog, speech, EQ

• audio-effect — modulation, dynamics, delay, spatial, distortion (phaser, flanger, chorus)

• pcm-convert, periodic-function, audio-buffer-utils, audio-stretch, audio-lena

GLSL → JavaScript compiler (stack-gl ecosystem). Lets you run shader code on CPU.

Performant FFT implementation for signal processing.

3KB DOM microhydration library — reactive templating without a virtual DOM.

WebAssembly text-format compiler.

Fast expression parser and evaluator.

Color space conversions library — comprehensive, dependency-free.