Daniel Joffe
Full-Stack Engineer who builds products end-to-end — from backend systems to polished UIs. I ship fast, architect for scale, and eliminate the bottlenecks that slow teams down.
I've worked with these companies to build fast, beautiful, and inclusive digital experiences.
Lightning Fast
Reduced mobile load time from 10s to 2s at FightCamp.
Empowered Teams
Decreased Content team's developer dependency by 80% at FightCamp.
Explosive Growth
Increased campaign page launches to 200+ in 2 months at Winc.
Accessible for All
Achieved WCAG compliance across legacy systems at The Library Corporation.
Talent Unlocked
Mentored junior developers—one promoted to Senior, another went to JPL.
Frictionless Launches
Built a self-serve CMS enabling 200+ landing pages at Winc.
Rock-Solid Delivery
Built React component library adopted by 80% of apps at Internet Brands.
Leadership Secured
Interviewed 13 candidates, hired key Senior Developer at Internet Brands.
Case Study 3: Winc — Self-Serve Landing Page CMS
From 3 pages per week to 200+ in two months: building self-serve tooling that eliminated engineering bottlenecks.
Case Study 2: Internet Brands — React Component Library
Building a React component library adopted by 80% of applications—and training the team to own it.
Case Studies: Daniel Joffe Portfolio
How I cut mobile load times from 10s to 2s and reduced bounce rates by 39% at FightCamp.
I Audit Before I Build
At FightCamp, I found HD images and 800MB videos loading on every page. Lazy loading, srcset optimization, and bundle analysis cut bundle size by 62% and improved load times by 80%.
I Build for Autonomy
Marketing teams shouldn't wait on engineering to ship a landing page. I built CMS tooling at Winc and FightCamp that let non-technical teams publish independently — 200+ pages launched, 80% fewer engineering requests. I invest in people the same way: five developers I've mentored have gone on to promotions and dream jobs, including one now at JPL.
I Measure What Matters
Lighthouse scores, bounce rates, Core Web Vitals — I treat performance as a feature. At FightCamp, systematic optimization lifted Lighthouse from ~35 to ~80 and cut mobile bounce rates by 39%.
I Think in Systems, Not Just Components
Building auth systems and rate limiters taught me to reason about tradeoffs — JWT vs sessions, in-memory vs distributed state, fail-open vs fail-closed. I bring that architectural thinking to every layer of the stack, not just the UI.
Let's Build Something Great Together
Available for full-stack engineering roles — Q1 2026. Let's talk about your project.