Technical consultant with 20+ years in real production systems. Specialized in rescuing legacy
architectures, leading technical teams and embedding ML/AI into business processes.
I have delivered systems for Televisa, Linio (7 LATAM countries), Zurich Santander, GNP and Bayer.
Founder of KusulasTech and creator of my own SaaS products.
Professional experience
Founder · Fractional CTO
Mar 2024 — present
KusulasTech · Querétaro
High-impact technical consulting for startups and mid-size companies in Mexico and LATAM.
Technical leadership: architecture, stack selection, code audits, testing, security and
team guidelines. Creator of proprietary SaaS products — MantenUp, Market360, PrecisionEngineAI
and Motor PreProcesamiento — tools that streamline processes and give better control to
industry, retail and residential communities.
DevSecOps & Testing: Rigorous practical application of quality practices on SaaS solutions,
implementing suites of 150+ automated tests (unit, integration, functional) and code
vulnerability scanning with Bandit before every production deploy.
Three systems delivered and running in QA for national retail and government: a dynamic
reporting engine (20+ reports with schema introspection and PDF/Excel/CSV export, adapting to
new catalogs with zero code changes); a ticketing platform with strict access control handling
10K+ monthly transactions; and a distributed offline-first POS (PyQt6 + SQLite) designed for
1,000+ locations, with synchronization and conflict resolution guaranteeing zero data loss.
PythonTornado / FastAPIPyQt6SQLiteDockerCI/CD
DevOps Engineer
Mar 2023 — Apr 2024
International Camsol · Querétaro
CRM redesign to align with new business policies, migrating from Microsoft CRM to a custom PHP
solution. Proposal and preparation of the migration from physical servers to AWS EC2 for ERP and
CRM systems, plus Hyper-V virtualization. Critical incidents cut 60%: from 10–15 per week down to 2–5.
PHPFastAPIMySQLAWS EC2Hyper-VDevOps
Business Analyst · Tech Lead
May 2021 — Mar 2023
UST Global · Mexico
Three major projects (6–8 months each) delivered on time and within scope, holding a dual role as
business analyst and technical lead. Documentation rebuild of a 12-submodule C++ system into UML
and flow diagrams, enabling the PHP team to work on the legacy architecture. Python ML model for
predictive inventory analytics, plus database optimization with caching (+30% performance).
C++PHP PhalconPythonSQL ServerAzureUML / SOA
Senior Consultant · ML Engineer
Oct 2017 — Jan 2021
Harbinter Soluciones · Mexico City
Zurich Santander: deep learning models for PDF policy report calibration —
99.97% generation rate, 0.03 decimal precision, 4 policy types, 3,000+ policies per month.
Contingencies reduced 75%. Also: BTC/ETH trend prediction API (60–70% accuracy;
public call on the 2022 crash),
real estate and university modules, and CI/CD with Jenkins.
TensorFlowKerasPythonLaravelAWS EC2Fintech
DevOps & IT Lead
Mar 2016 — Aug 2017
Wheels Social Movilidad · Mexico City
Technical leadership in direct collaboration with the CTO/CEO on an Uber-style mobility platform.
Multi-platform release (web, Android, iOS), system modernization to v2.0 with an Ajax dynamic
interface and HTTPS/SSL, a separate QA environment on AWS EC2, and hardening against XSS, CSRF
and SQL injection.
PHP LaravelAWS EC2PostgreSQLElasticsearchSecurity
PHP Master · Tech Lead
Feb 2014 — Feb 2016
Linio · 7 LATAM countries
Technical leadership of inventory and supplier management at LATAM's largest e-commerce platform.
OMS 2.0 upgrade with 30% performance improvement, operating across Mexico, Colombia, Peru, Panama,
Chile, Argentina and Ecuador. Led a 3-developer team building the Netsuite API adapter and the
real-time financial reporting used for stock market disclosure. Competitive benchmark of Linio 2.0
against Amazon, MercadoLibre and Walmart, with recommendations to the CTO.
Enterprise systems for GNP, Bayer, Nextel, Costco, UPS, Suzuki, Renault and Nissan.
Knowledge assessment platform for 7,000+ employees with randomized testing and an HR analytics
dashboard; YouTube-style video platform with DRM for Nextel; SOA integration via IBM WebSphere
Message Broker for GNP; and a credential system for Bayer (3,000+ people, 30% paper cost reduction).
Automated music catalog upload system for 9 record labels (Universal, Sony, BMG, Warner and 5
Mexican labels), 1,000+ products per month, with a standardized XML parser handling data validation,
pricing and automated DRM protection under an iTunes-style sales model. 300% time savings over the
previous manual .NET process. Delivered solo a project originally scoped for 4 developers.
PHPMySQLXML / SOAPVB.NETDRM
Development Coordinator
Nov 2005 — Dec 2007
Universidad Panamericana · Mexico City
7 system implementations led with a 4-intern development team. Open-source auditing solution for
3,000+ campus assets with real-time executive dashboards: $150,000 USD in annual savings versus
proprietary licenses. Software lending system (3,000+ discs) with automated email reminders that
cut losses by 70%.
Because of my hearing condition I have perfected a visual, asynchronous workflow: video calls with live captions, rigorous technical minutes, interactive whiteboards and phased WBS deliverables. The result is flawless documentation and zero ambiguity.
Engagement models
Monthly Fractional CTO retainer, fixed-scope projects driven by clear objectives, or licensing and integration of my proprietary platforms.
Web tool that turns YouTube videos, JavaScript-heavy pages, HTML and AI chats into clean text and navigable documents, ready to archive or feed into another AI.
Music system for bars and restaurants. QR per table, curated catalog, per-song monetization model.
SaaSbeta
Education
Diploma in Data Science
2020 — 2021
Universidad Anáhuac México
Postgraduate Degree, Project Management
2006 — 2007
Universidad Panamericana
Postgraduate Degree, Networks & Distributed Systems
2005 — 2006
Universidad Panamericana · data distribution, process automation and security
B.Eng. in Computer Systems Engineering
2001 — 2005
Universidad Panamericana
Recommendations · LinkedIn
"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 ·