Julio Gonzalez

Systems & Full-Stack Engineer. I design, build, ship and operate entire production platforms alone.

Brooklyn, New York · julio@frescolink.com · Available immediately: full-time or contract
juliophp.com · github.com/Juliophpx · linkedin.com/in/julioagonzalez
Live chat with me, no app needed: frescolink.com/julio/resume

Systems in production

FrescoLink.comReal-time messaging platform; C WebSocket engine in production on AWS; YC S2026 applicant

FrescoTap.comPremium NFC business card, one-time payment, Stripe; live with real customers

FrescoStar.comReviews Shield for local businesses: NFC + QR stand routing happy customers to Google reviews

Partners.FrescoTap.comAffiliate platform with instant payouts, in market and recruiting

FrescoLogicBuilt for my client Fresco Products: logistics platform running their daily operation, 6+ years, 973k+ records

How I build with AI

AI on both sides of the work. In my products: LLMs wired directly into live databases and business rules, not bolted on, AI reading the same data the business runs on. In my workflow: AI is how I engineer in any language the problem demands, on top of 18 years of systems fundamentals (architecture, data, security, operations), directed the way I'd direct a team.
Speed without lowering the bar: complete product surfaces (API, schema, frontend, payments) shipped solo in a fraction of my pre-AI time, with the same zero dependency discipline and production standards. The FrescoLink.com real time layer was built that way in C, a language I'd never shipped in; the same playbook is going into a Rust rewrite.

Experience

Founder & Systems Engineer · FrescoTechnology.com, New York

2019 - Present

Shipped 4 live products end to end solo (backend, database, frontend, payments, infrastructure) on AWS (EC2, RDS, SES) + Cloudflare (DNS, CDN, R2), Stripe, Twilio: FrescoLink.com (real time messaging), FrescoTap.com (NFC business card), FrescoStar.com (reviews shield) and Partners.FrescoTap.com (affiliate platform with instant payouts).
Wrote and operate the real time layer of FrescoLink.com: a WebSocket server in C (libwebsockets) on AWS. Native JWT verification, AES-256 content encryption, async MySQL persistence via a dedicated pthread worker with job queues, per session fan-out, and AI triggers fired from C. Hand written in a language I'd never shipped in, engineered with AI assistance and 18 years of systems fundamentals.
Built the entire FrescoLink.com API in native PHP with zero dependencies: JWT implemented from scratch, routing, migrations, Cloudflare R2 integration, all behind a documented architecture contract separating real time transport (C) from business logic (PHP).
Built and operate FrescoLogic for my client Fresco Products (Bronx food distributor to NYC restaurants): their entire internal operation (orders, warehouse, invoicing, delivery), used daily for 6+ years. 973,000+ records, 23,000+ units/month, QuickBooks API integration, real time SSE warehouse dashboard.
Integrated LLMs into core business logic: a natural-language assistant querying the live database, and automated executive analysis of 800+ invoices/month. AI reading real business data under real business rules.

Software Engineer · HelloFellow (startup), Manhattan, NY

03/2025 - 09/2025

Built the entire Flutter (iOS) frontend of the main product from Figma designs in under two weeks; designed and implemented all APIs behind it.
Shipped AI systems to market: driver's-license data extraction, DALL·E asset generation for listings, chatbot support, automated reporting.
Product launched; company closed after the founders' personal circumstances.

Software Engineer · Odebrecht, Venezuela & Panama (infrastructure megaprojects)

2008 - 2018

Tocumen International Airport expansion: comprehensive web platform of 20+ modules across HR, Finance, Administration, Quality and HSE; PPE management system cut protective-equipment purchases 40% in its first month.
Document-workflow platform (issue, verify, approve, distribute, revision control, with external designers) for the Bocas del Toro hydroelectric project. Replaced a corporate application, saving $80k to $200k in licensing and implementation.
Cinta Costera 3 highway: 20+ module platform managing 25,000+ documents over two years; instrumental in the project's ISO 9001 certification, with the marine-inspection module praised by external auditors; built a high-security access portal for the Ministry of Public Works.
Integrated platforms with Oracle PeopleSoft HR databases; built, alone, the 15+ application platform of a $6MM hydroelectric operation in Venezuela (2008-2011) serving 6,500+ employees.

Skills

SystemsC (libwebsockets, pthreads) · real-time architecture (WebSockets, SSE, fan-out, async job queues) · AES-256 encryption · JWT from scratch (PHP & C)

BackendPHP (native, zero-dependency) · REST API design · MySQL at scale (973k+ records, schema design, query optimization) · Flutter/iOS

AILLM integration into live systems (OpenAI, Anthropic, Gemini) · natural-language interfaces over databases · AI-assisted engineering across languages ("AI as core part of how I build")

InfrastructureAWS (EC2, RDS, Lightsail, SES) · Cloudflare (DNS, CDN, R2) · Stripe · Twilio · Linux, deployment, operations

Education

B.S., Systems Engineering

Polytechnic Institute "Santiago Mariño", Barcelona, Venezuela

Tip: in the print dialog choose "Save as PDF" to get the PDF version.