Luis Fernando Ordóñez Sánchez
Senior Software Engineer · Backend & Full Stack · SaaS & Cloud
17+ years building scalable SaaS platforms, ERPs and enterprise software with PHP, JavaScript, Node.js, MySQL and cloud infrastructure. Former CTO & Solutions Architect with strong hands-on engineering experience across backend, APIs, system design and production operations.
Engineer by background. Architect by experience. CTO by responsibility. Still hands-on.
I build software end-to-end — from backend development and database design to system architecture, infrastructure and production operations.
About Me
Senior Software Engineer · Developer + Architect + Leader
I'm a Senior Software Engineer with 17+ years of hands-on experience building enterprise software, SaaS platforms and mission-critical systems. I write code, design architectures and lead engineering teams — and I'm still a practicing engineer.
My core stack: PHP, Laravel, Symfony, JavaScript, Node.js, MySQL, REST APIs, Linux and Docker. Deep experience in complex integrations, payment gateways, multi-country e-invoicing, XADES digital signatures, WhatsApp Business API and telemedicine systems.
I've held roles as Senior Developer, Solutions Architect and CTO. That progression makes me an engineer who understands the business, can make architecture decisions and still ships production code. My leadership experience is a complement to my technical skills, not a replacement.
Currently open to Senior Software Engineer, Backend Engineer, Full Stack Developer, Solutions Architect and Engineering Manager opportunities worldwide — remote or relocation.
Hands-on Engineering
I design and build. From system architecture to production code and 24/7 operations.
System Design
Multi-tenant SaaS, REST/SOAP APIs, third-party integrations, scalability and legacy modernization.
International Experience
Projects in 16+ countries: Spain, Colombia, Ecuador, Peru, Venezuela, Panama and more. Ready for global teams.
Areas of Specialization
- Multi-tenant SaaS B2B platforms
- ERPs and enterprise management systems
- REST/SOAP APIs and integrations
- Multi-country e-invoicing
- Payment gateway integrations
- WhatsApp Business API
- Telemedicine and digital health
- Digital signatures (XADES)
- Scalable architectures
- Linux · Docker · Nginx infrastructure
- Legacy system modernization
- Technical team leadership
What I Build
Real engineering capabilities backed by delivered projects
SaaS Platforms
Architecture and development of multi-tenant B2B SaaS platforms from scratch to production. Subscription models, onboarding, billing and 24/7 high availability.
APIs & Integrations
REST and SOAP APIs, authentication, payment gateways, WhatsApp Business API, e-invoicing, XADES digital signatures and third-party service integrations.
ERP Systems
Full ERPs: inventory, purchasing, sales, accounting, payroll, billing, POS and executive reports. 250+ implementations across 16+ countries.
Healthcare Software
Clinical systems, telemedicine, electronic health records, e-invoicing and digital signatures for medical, dental and veterinary sectors.
Legacy Modernization
Migrating and modernizing PHP/legacy applications without rewriting everything from scratch. Reducing technical debt while maintaining business continuity.
Cloud & Infrastructure
Linux, Docker, Nginx, AWS, cPanel/WHM, CI/CD and production environments. Configuration, deployment, monitoring and high-availability operations.
Professional Experience
17+ years writing code, designing systems and delivering enterprise software
Centauris Tech
January 2016 – April 2026 · LATAM (Remote / Mixed) · 9 yearsSoftware company specializing in ERPs and SaaS B2B platforms for healthcare, dental, veterinary and enterprise management sectors. Creation and launch of 5 commercial products operating in 16+ countries with more than 350 active centers.
CTO — Chief Technology Officer
January 2022 – April 2026- AI-Driven Efficiency: Coordinated technical teams with Scrum, Kanban and OKRs, standardizing AI-powered automation tools (Claude Code) at a corporate level to optimize software delivery timelines.
- Expansion & Compliance in Spain: Consolidated the technical architecture of 10 critical ERP/SaaS projects for municipalities, legal laboratories and construction companies, ensuring compliance with European data governance regulations.
- Business Strategy: Designed the technology roadmap for 5 commercial brands, structuring high-availability architectures that supported the simultaneous operation of more than 350 active international centers.
SaaS Solutions Architect / Project Lead
January 2019 – December 2021- International Expansion: Led the rollout in 16+ countries integrating Node.js and Angular with local Electronic Invoicing systems (Spain, Colombia, Ecuador, Peru), generating a 60% increase in subscription ROI.
- Critical Integration & Security: Developed complex transactional modules: telemedicine workflows, WhatsApp Business API, payment gateways and XADES digital signature systems for the healthcare sector.
Senior Full Stack Developer
January 2016 – December 2018- DevOps & Technical Debt: Designed and executed migration toward scalable multi-tenant architectures with Docker and CI/CD, achieving operational availability of 99.7% (24/7).
- Core Development: Built robust components in PHP (Symfony/Laravel) and complex relational schemas — the modular codebase that enabled the creation of more than 50 custom projects.
Development Process Leader
Simoniz Colombia
January 2015 – December 2015 · Colombia (On-site) · 1 yearMultinational manufacturing and distribution corporation with operations across multiple Latin American countries. Responsible for digital transformation, data architecture and automation of critical payroll, finance and executive reporting systems in multi-company environments.
- Business Intelligence & Reporting: Designed and deployed a corporate portal in PHP+ODBC, unifying payroll data with Qlik analytics platforms to automate executive dashboards and enable real-time strategic decision-making.
- Data Governance: Structured information schemas for HR, accounting and auditing, ensuring data integrity and traceability in high-sensitivity corporate processes.
- Critical Infrastructure: Administered SQL Server 2012 with advanced query tuning, security/permission policies and automated backup schemas to ensure high availability of multi-country financial data.
- Technology Adoption: Led Siesa Mobile / Siesa ERP training plans that accelerated digital adoption and optimized administrative process workflows.
Systems Consultant · Operations Manager · Site Manager
Sievenca (Venezuela / Panama)
June 2010 – June 2014 · Venezuela / Panama · 4 yearsTechnology consulting firm and enterprise software integration services provider across LATAM and Central America. Operational leadership and digital transformation management in large-scale ERP rollouts for retail, construction and services.
- Large-Scale Deployment: Led the full implementation lifecycle of more than 250 corporate ERP systems, managing requirements gathering, data migration, parameterization and production go-live of financial, inventory and HR modules.
- Infrastructure & Critical Support: Administered servers and relational databases (MySQL and SQL Server), designing backup policies, disaster recovery plans (DRP) and high-availability schemas for 24/7 critical business operations.
- Hardware-Software Integration: Developed PHP solutions integrating specialized hardware (biometric devices and turnstiles), automating access control workflows tied to client business rules.
- Growth & Regional Expansion: Promoted from Consultant → Operations Manager → Site Manager in Panama, coordinating technical teams to ensure regional expansion and quality standard compliance.
Early Foundational Experience
Insite de Venezuela · Banco BOD · CANTV Telecomunicaciones
2003 – 2010 · Venezuela · 7 yearsFormative stage in enterprise software consulting, network administration, critical infrastructure and technical deployment across telecommunications, banking and management software sectors.
- ERP Consulting & Implementation (Insite): Systems Analyst and Functional Consultant, leading requirements gathering, administrative module parameterization and first-level technical support for corporate ERP solution deployments.
- Financial Operations & POS (Banco BOD): Configuration, corrective maintenance and network optimization for Point of Sale (POS) terminals, ensuring continuity of critical financial transactions under high-availability standards.
- Large-Scale Infrastructure & Networks (CANTV): Preventive hardware maintenance, corporate network administration, structured cabling and leadership of mass OS migration projects in enterprise and institutional environments.
Featured Projects
Commercial SaaS products, personal projects and client work in Spain and LATAM
Veterinary SaaS Platform
SaaS B2B · Commercial Product · Multi-tenant- Digital clinical records with vaccines, treatments and patient evolution
- Appointment system, scheduling and automatic SMS/Email/WhatsApp reminders
- Integrated inventory, billing and financial management
- Multi-tenant architecture supporting 200+ simultaneous clinics
Dental Practice SaaS
SaaS B2B · Commercial Product · Multi-tenant- Interactive digital odontogram with treatment mapping per tooth
- X-ray management, quotes and treatment plan tracking
- Scheduling, billing and installment payment control
- Multi-tenant system for dental chains and franchises
Medical SaaS Platform
SaaS B2B · Healthcare · Active in 8 countries- Electronic health records, prescriptions and lab orders
- Telemedicine system with integrated video consultation
- Multi-country e-invoicing (Colombia, Ecuador, Peru, Spain)
- XADES digital signatures and RIPS reports for regulatory compliance
Commercial & Restaurant ERP
SaaS B2B · ERP · Multi-country- Touch-screen POS with real-time sync via WebSockets
- Full ERP: inventory, purchasing, sales, accounting and HR
- Table management, orders and kitchen display for food service
- Multi-country e-invoicing and payment gateway integrations
Reserking — Online Booking SaaS
SaaS B2B · Booking Platform · Multi-channel- Smart scheduling with real-time availability and business rules
- Multi-channel automatic reminders: SMS, WhatsApp Business, Email
- Online payment integration and advance deposit management
- Embeddable widget compatible with Google Calendar and external sites
Glucose Control App
Health App · Personal projectPWA for glucose monitoring in diabetic patients. Records measurements, visualizes trends, generates PDF reports and shares data with physicians. Smart alerts included.
Whatchat
Messaging App · Personal projectSecure messaging platform for families and groups. Private end-to-end encrypted chats, file sharing and group management with mobile apps.
Bicycle E-commerce
E-commerce · Client in SpainOnline store for bicycles and accessories. Inventory management, orders, e-invoicing and payment gateway. Supplier and shipping integration.
Municipal Portal
Municipal Portal · Client in SpainMunicipal web portal with online procedure management, e-government seat, announcements, events calendar and citizen services. GDPR compliant, accessibility AA.
Construction ERP
Construction Management · Client in SpainERP for a construction and renovation company. Project management, budgets, materials control, subcontractors, certifications and client invoicing.
Forensic Legal Laboratory
Legal Software · Client in SpainManagement system for a forensic legal laboratory: cases, expert witnesses, forensic reports, billing, GDPR compliance and digital document signing.
Labor Compliance System
HR & Compliance · Client in SpainWorking hours and salary registry system for labor regulatory compliance. Time tracking, absence management, government reports and data export.
What can Luis bring to your team?
Four dimensions of value in a single professional
Senior Software Engineer
Writes production code. PHP, JavaScript, Node.js, MySQL. APIs, integrations, complex systems. Hands-on from day one.
Solutions Architect
Designs systems that scale. SaaS multi-tenant, microservices, cloud, APIs. Architecture decisions with real business impact.
Technical Lead
Leads teams with Scrum and OKRs. Mentoring, code reviews, quality standards. Alignment between product and technology.
Former CTO
Business and technology vision. Product strategy, international compliance, expansion. Bridge between C-level and engineering teams.
GitHub & Technical Projects
Code · Architecture · APIs · SaaS · Experiments
ingenieroluisordonez-lab
Technical projects, tools and engineering experiments. Public repositories under construction.
View GitHubUpcoming public repositories:
- saas-boilerplate-php — Multi-tenant SaaS foundation with PHP/Laravel
- whatsapp-api-integration — WhatsApp Business API integration with PHP
- einvoicing-multicountry — E-invoicing for Colombia, Ecuador, Peru
- rest-api-patterns — REST API patterns with authentication and documentation
- glucose-tracker-app — Glucose monitoring PWA (Flutter + PHP backend)
Most of my professional work is under NDA. These repositories will showcase real technical implementations of the patterns I use in production.
Engineering & Architecture
I don't just write code — I design systems that scale
Technical Skills
Technology stack and professional competencies
Backend & Languages
Databases
Infrastructure & DevOps
APIs & Integrations
Specialized Systems
Tools & Other
AI-assisted Engineering
Systematic use of AI to accelerate delivery and stay focused on architecture and high-level decisions.
Professional Competencies
Team Leadership
Management of multidisciplinary teams (dev, QA, support) with agile methodologies
Software Architecture
Design of scalable, multi-tenant and high-availability architectures
Product Vision
Focus on retention, scalability and measurable business outcomes
Problem Solving
Identification and resolution of complex technical problems under pressure
Effective Communication
Ability to explain technical concepts to non-technical audiences
Fast Adaptability
Experience migrating legacy systems and adopting new technologies
Languages
Ask Luis AI
Have questions about my experience, stack or availability? My AI assistant answers in seconds, available 24/7 in English and Spanish.
- Ask about specific projects or technologies
- Analyze whether my profile fits your opening
- Get concrete metrics, achievements and use cases
Academic & Continuing Education
University degree + updated technical training
Academic Education
Software Engineer
Universidad Rafael Belloso Chacín (URBE) · Venezuela · 2012
5-year university degree specializing in software development, systems analysis, databases and enterprise architectures.
Technical Degree in Computer Science
CUNIBE · Venezuela · 2008
Technical training in programming, networking, hardware and systems administration.
Certifications
- Curso de PostgreSQL · Platzi
- OpenClaw · Platzi
- Python Avanzado · Platzi
- Language and Mathematical Notation · Platzi
- Differential Calculus for Data Science & AI · Platzi
- Statistics and Probability · Platzi
- QlikView — Architecture & Development
- Advanced JavaScript & Async Programming
- Advanced Database Administration
- Web Master Diploma
Continuing Education
Updated: Jul 2026Dedicating 5-10 hours per week on platforms like Platzi and Udemy:
Let's work together
Senior Software Engineer open to remote positions and relocation worldwide. Full-time, freelance or contract.
Contact
Let's talk about how I can add value to your company or project
Contact Information
I am available for employment opportunities, either as a staff employee or as a freelance/consultant for specific projects.
ingenieroluisordonez@gmail.com
+57 305 734 5164
+57 305 734 5164
linkedin.com/in/luis-ordonez-dev
ingenieroluisordonez-lab
For employment, freelance or consulting