Josh Hubbard
Senior Full‑Stack Engineer
Danville,VA
Summary
Full‑stack engineer with 10+ years shipping high‑impact web products. Deep in Next.js, SvelteKit, TypeScript, and backend APIs (Express, Flask, Rails, .NET). Turns complex ideas into fast, scalable applications and leads teams from concept to production.
Overview
8
8
years of professional experience
11
11
years of post-secondary education
Work History
Product Engineer (Contract)
Rift Exchange
02.2025 - 05.2025
- Built an “Asset Picker” React component that lists cross-chain ERC-20 tokens, supports fuzzy search, and auto-filters by connected network—enabling one-click selection for the ERC-20 → BTC bridge.
- Baked in OFAC compliance: added IP geo-blocking middleware and a TRM Labs check (custom Next.js API route + React hook) that screens wallet addresses in real time and denies sanctioned users before they hit the dApp.
- Authored a batching smart contract that swaps any ERC-20 to cbBTC via Uniswap’s Smart Router, validates the trade, and forwards the resulting cbBTC to the core Rift Exchange contract—shrinking a three-step flow to a single transaction and cutting user gas spend.
Lead Frontend Engineer
Game Of Silks
09.2023 - 06.2024
- Re‑platformed a Next.js SPA to SSR‑first v14, cutting Largest Contentful Paint to 1.3 s and boosting Core Web Vitals scores.
- Added AWS Cognito RBAC and .NET Core middleware to secure admin APIs and throttle abusive clients.
- Orchestrated nightly ETL Lambdas that ingested race data into PostgreSQL, eliminating all manual imports.
- Embedded Playwright + Vitest suites in CI/CD, catching regressions before merge.
- Led an 8‑dev cross‑functional team; instituted code‑review standards.
Lead Web3 Engineer
Golively
06.2022 - 07.2023
- Migrated a legacy Flask app to SvelteKit SSR, halving Time to First Byte and lifting search rankings.
- Authored a typed Python ORM for DynamoDB single‑table design, eliminating edge‑case bugs.
- Built an admin console with SvelteKit + Tailwind, reducing CMS update time from hours to minutes.
- Implemented event‑stream endpoints and real‑time UI components for live data feeds.
- Created a full‑stack test harness (Playwright UI + Vitest unit) that delivered 100 % coverage.
Lead Engineer
Zeti Ai
10.2021 - 06.2022
- Shipped Zeti 2.0 on SvelteKit SSR, raising user engagement 30 %.
- Enforced PostgreSQL row‑level security and Redis token‑bucket rate limiting.
- Off‑loaded heavy image‑generation jobs to AWS Lambda, cutting EC2 costs 40 %.
- Wired Vitest + Playwright into Vercel CI; green‑lit deploys in minutes with 95 % coverage.
CTO/Lead Engineer
Yeet Box Automation
01.2019 - 10.2021
- Shipped firmware for four ESP32 IoT products with ESP‑IDF & Arduino, slashing boot time and power draw.
- Tuned low‑power routines and sensor polling to extend battery life by ~30 %.
- Designed modular PCBs in Eagle and 3‑D‑printed enclosures, cutting per‑unit cost and shrinking hardware iterations from weeks to days.
- Set up OTA update flow and CI pipelines, delivering bug fixes to field devices without recalls.
Senior Software Engineer
Fire Eye, Inc
07.2017 - 12.2018
- Upgraded a Rails 4 monolith to Rails 5, closing critical CVEs and lifting throughput 30 %.
- Exposed threat‑intel data via REST/GraphQL endpoints consumed by FireEye appliances in real time.
- Spun up Ruby/Node micro‑services with Sidekiq queues, detecting threats in under a second.
- Tuned Postgres indexes and added Redis caching, halving dashboard query latency.
- Ran code reviews and mentored four devs, driving secure‑coding habits and 90 % test coverage.
Education
Bachelor of Science - Computer Science & Mathematics
Emory University
05.2001 - 03.2012
skills
Languages TypeScript/JavaScript | Solidity | Python | C# | Ruby | SQL | HTML & CSS
Frontend React & Next.js (v15 Pages) | Svelte / SvelteKit | Tailwind CSS
Backend / APIs Node.js & Express | Flask | Rails | ASP .NET Core | GraphQL & REST design
Smart‑Contract Stack Hardhat / Foundry | Ethers.js | Viem / Wagmi | EIP‑2535 Diamond pattern
Databases PostgreSQL | DynamoDB | MySQL | Redis
Cloud / DevOps AWS (Lambda, RDS, Cognito, Serverless Framework) | Docker | Vercel | CI/CD with GitHub Actions & CodePipeline
Testing Playwright | Vitest/Jest | Automation in CI
Collaboration Git & GitHub (monorepos)
Links
Github: https://github.com/jhubbardsf/frontend
LinkedIn: https://www.linkedin.com/in/jhubbardsf
Timeline
Product Engineer (Contract)
Rift Exchange
02.2025 - 05.2025
Lead Frontend Engineer
Game Of Silks
09.2023 - 06.2024
Lead Web3 Engineer
Golively
06.2022 - 07.2023
Lead Engineer
Zeti Ai
10.2021 - 06.2022
CTO/Lead Engineer
Yeet Box Automation
01.2019 - 10.2021
Senior Software Engineer
Fire Eye, Inc
07.2017 - 12.2018
Bachelor of Science - Computer Science & Mathematics
Emory University
05.2001 - 03.2012
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