> fractional_cto && tech_lead // on demand
I find them, and I fix them. In the code, in the checkout, in the architecture. 5+ years leading teams in the US and Canada on projects for Rhode, Ilia, Veronica Beard, McKinsey, Clearly Filtered, Twillory and BYLT.
0+
years of code
0+
years leading us/ca
0k+
students taught
// projects i shipped on
// maybe it's you
[ performance ]
Slow site, high TTFB, failing Core Web Vitals. Conversion bleeding and nobody knows where the bottleneck is.
[ headless ]
You want to migrate to Hydrogen/Next.js but don't have someone who's walked this path before, and the operation can't stop in the middle.
[ process ]
Team without code review, without CI/CD, without standards. Deploy is a leap of faith and the last incident killed Black Friday.
[ architecture ]
Integrations that duplicate orders, search that misses products, cache nobody understands. The platform grew faster than the architecture.
// services
01
→I identify bottlenecks in code, infrastructure and Core Web Vitals to eliminate tech debt and unblock your growth.
02
→I define OKRs, KPIs and feature priorities that move revenue, building a clear plan for the next 3 months.
03
→Weekly code reviews, pair-programming and GitFlow rollout, with hands-on workshops to lift your team's quality bar.
04
→Pipelines (GitHub Actions/GitLab CI), automated tests (Jest, Cypress) and quality gates (SonarQube, Sentry) to ship faster, safely.
05
→Microservices/APIs, cache and CDN strategies, headless commerce blueprint (React · Next · Shopify) for max performance.
06
→Real-time dashboards and alerts (Datadog, Sentry), monthly reports and on-call coverage with 4h response SLA.
// work
01
Twillory / Shopify Optimization
Advanced Shopify server-side optimization: custom CDN, asset optimization and theme restructuring for priority loading.
-60%
ttfb
02
BYLT / Hydrogen Migration
Accelerated headless performance with Shopify Hydrogen, integrating Pack and Fueled, tuning custom CDN and deploy pipelines. Immediate revenue jump and ¼ of the team's time freed up for growth.
+35%
anniversary revenue
// what people say
“
When Daniel joined the team, he found a slow redesign that was converting worse than the old site in A/B tests. In a few weeks, he cut our TTFB by 60%, recovered conversions and delivered a fast, reliable experience. He also rolled out coding standards, Git Flow, code reviews and led every discovery on complex architectures.
// owner of a shopify agency
// shopify credentials
// about
17 years of code. 5+ leading teams in the US and Canada. Specialist in Shopify and its entire ecosystem: themes, apps, checkout extensions, integrations from scratch.
I tend to step in when the internal team stalls, or when the operation can't stop. Worked via agencies on projects for global brands that sell every day across time zones. Shipped Hydrogen storefronts, wrote checkout extensions that handle peaks without flinching, and untangled integrations that duplicated orders in the ERP.
I also wrote the course Especialista React, with 10k+ students taught. But that lives at another address. Here is work only.
// contact
We talk, I map where your technical bottlenecks are, and you walk out with 2 or 3 actionable quick-wins. No proposal at the end of the call. No upsell.
step 01
free consult
30 min, no commitment.
step 02
custom proposal
scope, timeline, price. clear.
step 03
implementation
delivery with measurable metrics.