End-to-End Technical Delivery (475+ Projects Shipped) by Sergio PereyraEnd-to-End Technical Delivery (475+ Projects Shipped) by Sergio Pereyra

End-to-End Technical Delivery (475+ Projects Shipped)

Sergio Pereyra

Sergio Pereyra

How I deliver software projects from scope to launch

Over the last 20 years, I've shipped 475+ projects as a Fractional CTO and Technical Delivery Lead. 100% Job Success on Upwork. Top Rated Plus. Leading a team of senior developers at Galindo Consulting Group.
I own builds end-to-end. That means scoping, sprint planning, stakeholder alignment, architecture decisions, and launch. No handoffs, no gaps, no "that's not my job."

What the process looks like

1. Scoping & Discovery Before a single line of code, I map the product requirements, technical constraints, and business goals. Clients get a clear roadmap with milestones, timelines, and deliverables they can hold me to.
2. Sprint Planning & Execution I run structured sprints with my team. Weekly check-ins, async updates, and working demos at every milestone. Clients always know where things stand.
3. Stakeholder Alignment I translate between business stakeholders and developers. Founders get plain-language updates. Developers get precise specs. Nobody wastes time on miscommunication.
4. Launch & Handoff Every project ships with documentation, deployment support, and a clean handoff. The product works on day one.

Recent results

NextBlock — Blockchain SaaS platform built on Solana. Processed $250K in revenue within the first 60 days of launch. End-to-end: UX/UI design, frontend, backend, Stripe and Plaid integrations.
Interviewiz — AI-powered interview preparation SaaS with dynamic question generation and real-time scoring. Scaled to 10K+ monthly sessions with 99% user satisfaction.
GTA GeoGuessr — Browser-based game built with React and Flask. Grew to 50K+ monthly active users.
Metorbike — 3D motorcycle configurator for a German e-motorcycle brand. Real-time customization built with Three.js and React.

Tech stack

React, Next.js, Node.js, Python, Flask, Three.js, Figma, Solana, Stripe, Plaid, MySQL, Shopify, WordPress, Squarespace.

Who this is for

Founders and product teams who need a technical lead to own the build. I work best on fixed-price engagements ($3K–$80K) where I can take full responsibility for the outcome. Available immediately.
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Posted Jul 20, 2026

20 years, 475+ shipped projects, 100% Job Success. End-to-end technical delivery: scoping, sprint planning, stakeholder alignment, and launch.

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Galindo Consulting Group