← Gancho Iliev

Senior front-end engineer

Gancho Iliev

Senior Front-End EngineerCreative developer — motion, WebGL & interactive web

Building production web experiences since 2018.

London, UKUK right to work

Summary

Senior front-end engineer specialising in high-end interactive and animated web — React, Next.js, GSAP, Three.js, WebGL — with full-stack range across Supabase, Stripe, and edge functions. I design, build, and ship production systems end to end. Available for white-label, freelance, and remote engagements.

Experience

Freelance Front-End Engineer

Aug 2018 – Present

Self-employedEpsom / London, UK · Hybrid & remote

Independent engineering practice building high-end interactive web and full-stack products for businesses across multiple industries — from scroll-choreographed marketing sites to data tools and AI-backed systems.

Selected engagements

GoSmartR

Front-end engineering lead

Scroll-driven interactive studio site: a Live Device Theater (Three.js + GSAP ScrollTrigger + Lenis) tuned to 90+ Lighthouse (desktop 98–100).

  • Next.js
  • React
  • Three.js/R3F
  • GSAP
  • Lenis
  • Tailwind

Outcome · Production studio site; motion-heavy yet performance-clean.

HELION (concept)

Self-initiated — real-time 3D configurator

Mechanical-watch configurator: atomic URL-shareable state, live PBR + transmission material swap, state-driven procedural geometry (movement, complications), cinematic camera, synthesized sonic layer.

  • Next.js 16
  • React 19
  • Three.js/R3F
  • postprocessing
  • GSAP
  • TypeScript

Outcome · Live concept piece; desktop Lighthouse 100, sub-16ms interaction. Demonstrates instrument-grade interactive 3D.

PostcodeHunter

Full-stack engineer

Lead-generation platform: Google Places scraping, website-quality scoring, map-based pipeline UI.

  • Next.js
  • Supabase
  • Deno edge functions
  • Mapbox

Outcome · 957 categorised records in production, weekly automated sweep.

Second Brain

Full-stack / AI engineer

Production RAG system in daily use: true-hybrid retrieval (RRF), multi-LLM fallback, HTTP capture pipeline.

  • Supabase + pgvector
  • edge functions
  • multi-LLM

Outcome · Daily-driver knowledge system with grounded, cited retrieval.

Capabilities

  • Front-end engineering
  • Scroll and motion design
  • WebGL / Three.js
  • Performance optimisation
  • Full-stack (Supabase, Stripe, edge functions)

Education

University of Ruse

Sep 2018 – Sep 2019

Associate of Science (AS), Information Technology

Grade · First

Certifications

Vanderbilt University / Coursera, 2026

  • Trustworthy Generative AI
  • ChatGPT Advanced Data Analysis
  • Prompt Engineering for ChatGPT

Languages

  • Bulgarian (native)
  • English (professional working proficiency)

Available for white-label, freelance, and remote engagements.