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Constantino Kusulas
Fractional CTO · Precision Engineer · 20+ years in production
📍 Querétaro, México [email protected] WhatsApp · +52 442 866 2688 LinkedIn ↗ kusulastech.com ↗

Technical consultant with 20+ years in real production systems. Specialized in rescuing legacy architectures, building technical teams and designing high-precision ML/AI solutions. I have worked with Televisa, Linio (7 LATAM countries), Zurich Santander and federal government. Founder of KusulasTech and creator of my own SaaS products.

Professional experience
Founder · Fractional CTO
2024 — present
KusulasTech · kusulastech.com
High-impact technical consulting for startups and mid-size companies in Mexico and LATAM. Technical leadership without full-time headcount: architecture, stack selection, code audits and team building. Creator of own SaaS products: MantenUp, 360 SLA, Jukebox and Pretext.
Fractional CTOFastAPI PostgreSQLReact FlutterAWS
Senior Python Developer
2025
B drive
Development of access and control systems for government and retail clients. Integration with biometric hardware and design of high-availability REST APIs.
PythonFastAPI GovTechREST APIs
DevOps Engineer
2023 — 2024
Camsol
75% reduction in critical incidents through infrastructure automation. Full migration to AWS with zero-downtime strategy. CI/CD pipeline implementation and proactive monitoring with intelligent alerting.
AWSCI/CD DockerTerraform Monitoring
Consulting & Business Analyst · ML Engineer
2021 — 2023
UST Global
Three simultaneous projects for Coppel. Design and implementation of a predictive ML inventory model that reduced in-store overstock. Business analysis and technical documentation for distributed teams. 99.97% ML accuracy on project with Zurich Santander.
Machine LearningPython scikit-learnSQL RetailFintech
PHP Master · Tech Lead
2014 — 2021
Linio · 7 LATAM countries
Technical leadership of the inventory and catalog team for LATAM's largest e-commerce platform. Optimization of a system processing $7M+ USD in inventory. Multi-country architecture for Mexico, Colombia, Peru, Chile, Venezuela, Ecuador and Panama. Detection and response to the Lazarus Group attack (North Korean APT) on critical infrastructure.
PHPMySQL Tech LeadE-commerce SecurityLATAM
Senior Developer
2008 — 2014
Televisa
Development of a multimedia platform for content distribution to 9 external providers. System responsible for $300K USD in automated revenue. Integration with third-party APIs and national-scale video streaming management. Predicted Bitcoin crash one month in advance using the HAL9 sentiment analysis model.
PHPJavaScript StreamingAPIs ML
Technical skills

Backend

Python · FastAPI · PHP · Node.js · PostgreSQL · MySQL · Redis

Frontend & Mobile

React · Flutter · HTML · CSS · JavaScript · TypeScript

ML / AI

scikit-learn · pandas · numpy · predictive models · NLP · sentiment analysis

Infrastructure

AWS · Azure · Docker · Terraform · CI/CD · GitHub Actions · Linux

Leadership

Fractional CTO · systems architecture · code review · hiring · technical roadmap

Security

APT detection · forensic analysis · hardening · incident response

Own products · KusulasTech
MantenUp
Maintenance and debt collection SaaS. Charge what you're owed — without chasing anyone.
SaaSlive demo
Market360 SLA
360sla.kusulastech.com
E-Commerce + WMS + OMS + ERP + CRM in one system. For distributors that don't want to pay SAP.
SaaSmulti-tenant
Rockola SaaS
Music system for bars and restaurants. QR per table, curated catalog, per-song monetization model.
SaaSbeta
"Constantino is an excellent and experienced collaborator."
— Agustín Gutiérrez Ramírez · Senior Delivery Manager @ UST Global Mexico · January 2023 ·
"I had the opportunity to be Constantino's professor during his master's degree in two subjects. In both he was always proactive, participating in class and researching new topics of interest, and was consistently responsible in his assignments and punctuality."
— Ricardo Adolfo Vidal Castro · IT | Quality Control | Internal Audit · August 2020 ·
"Constantino is a professional with a very particular attention to detail. He was one of my most dedicated students during his specialization and I noticed his great learning capacity, his commitment to work done right, and his drive to apply his knowledge to any business need. As a colleague in the IT field, I continue to see his enthusiasm for growth and innovation. He has excellent ideas and initiatives — I would not hesitate to bring him into my own projects for his very valuable perspective. Anyone who has had the opportunity to work with him knows his extraordinary talent and attitude. Constantino is a fully qualified professional in every sense of the word."
— Esteban San Roman CISSP · CCSP · CISA · CISM · CRISC · ITIL · Experienced Coach & Certified IT Professional · July 2020 ·
"It is my pleasure to say that I know Eng. Constantino Kusulas Vazquez; his collaboration and performance are of great value to any organization. His work has reached high levels. The main qualities that make him valuable to any team are his great problem-solving ability, his consistency, and high-quality work. He also has strong skills for teamwork and commitment in his professional activities, always delivering his very best."
— Víctor M. Rojo · Business Development Manager | LATAM · January 2018 ·
"Constantino is an excellent professional with a strong analytical capacity to propose and find solutions to any type of situation. I highlight his valuable willingness to work as a team, his patience in teaching, and his ability to leverage feedback — always looking for ways to generate new knowledge to stay at the forefront of technology, never settling for good when great is within reach."
— Jose Monterroza · BIM Architect | Sustainable Energy & Environmental Management · March 2017 ·
"I worked with Constantino during the first 6 months I was in IT at Linio. During this time he was part of the product development team under my responsibility. Beyond demonstrating his commitment and consistently delivering high-quality work, Constantino was tremendously helpful in making me understand the important implications of the product we were working on. I am certain his openness helped me integrate into the team more quickly and that we generated real business value in the projects we executed together."
— Rafael Guzmán Rodríguez · VP of Product Development @ CXC · May 2016 ·
"I had the opportunity to work with Constantino on the catalog automation project for various record labels and video content at Televisa. In this project he handled content encoding for multiple platforms. He always worked with great commitment and responsibility regardless of the challenges that arose. You can be sure that the work he delivers will always carry the dedication and care it deserves."
— Jesica Recio Hernandez · Computer Systems Engineer · Televisa · March 2015 ·
"I have had the pleasure of knowing him for five years, during which I have observed impeccable conduct — he is honest, responsible and hardworking. He has made our systems much easier to use across Nextel's platforms."
— Mónica Castañeda · Key Account Manager Sr · March 2015 ·
"Constantino is just great as a team leader. My first IT related job was under his supervision. He worked close to me setting me up with small challenges at the time, but after several months when we turned back we had a big project successfully working for the university. Our Open-AudIT customization is still running and helps the IT team to have supervision over the 3,000 Macs that the Pan American University owns."
— Noe Rodriguez · Middleware Architect @ WI Dept. of Employee Trust Funds · March 2015 ·
"Constantino is a person fully dedicated to his work, and the performance he demonstrated during the time we worked together is quite admirable. He never stops at one idea — he researches, collaborates with teammates, and always looks for a solution beyond the obvious. He has knowledge in operating systems, databases, and monitoring systems, and I always received his full support in our work."
— Noe González De La Fuente · Project Manager / Scrum Master · March 2015 ·

All recommendations verified on linkedin.com/in/constantinokv ↗