Marco Guillen
Marco Guillen

Head of Operations and Quality Assurance Manager

Open to offers · Member since 19 Oct 2026
Location
San José, Costa Rica
Desired salary
Unspecified
Work preference
Remote Only
Experience level
Lead

About

Professional summary

I am an operations and quality-focused professional with more than eight years of experience across technology, AI-driven organizations, financial institutions, and global service environments.

I specialize in functional web QA testing, quality systems, process improvement, operational documentation, KPI management, and performance reporting. I use a data-driven approach to identify risks, improve workflows, and support scalable business operations.

I have led cross-functional initiatives involving product, engineering, operations, internal teams, and external vendors. My experience includes defining testing and release-validation processes, managing incidents and service requests, and ensuring SLA compliance.

I also have experience monitoring advertising revenue, validating ad delivery and tracking accuracy, and investigating reporting discrepancies to support revenue assurance and optimization.

As a people and project leader, I have trained staff and vendors, conducted audits, managed change initiatives, and driven continuous improvement programs. I am fluent in English and Spanish and focused on automation, quality, and operational excellence.

Skills

27 capabilities

Experience

Career history

Head of Operations and Processes Dialogue Labs

I lead operational quality assurance for AI-powered web products, covering quality, performance, usability, and data integrity. I define testing, defect-management, and release-validation processes in collaboration with engineering teams.

I monitor advertising revenue performance, validate ad delivery and tracking accuracy, and identify optimization opportunities. I also track operational, system-performance, and revenue KPIs while improving documentation, quality standards, and scalable operational processes with product, operations, and technical teams.

Quality Assurance Manager Inter-American Development Bank

I led IT vendor quality-management systems and performance oversight, including audits across country offices and compliance with quality standards. I evaluated incidents and service requests to ensure SLA and KPI compliance.

I managed projects involving process improvement, dashboards, and software solutions. My responsibilities included developing scorecards, monitoring risks and opportunities, coordinating workflows and change management, and training internal staff and external vendors.

Product Expert (SME) YouTube

I led and supported customer service agents in a global support environment, ensuring KPI and SLA compliance. I trained and assisted new hires while supporting consistent operational performance.

I provided email and chat support to content creators worldwide and served as a subject matter expert for product-related escalations. I helped resolve complex cases and supported teams with product knowledge and guidance.

Quality Assurance Manager Fulzer

I managed the quality system, including planning, documentation, continuous improvement, KPI monitoring, scorecards, risk management, and data reporting. I developed and followed up on strategic initiatives with senior management.

I led cross-functional improvement projects and served as Lead Auditor for ISO 9001:2015. I conducted root-cause analysis and corrective actions, managed staff and vendors, and maintained data accuracy across quality reporting.

Education

Learning history

ULACIT

Master of Business Administration, Business Administration

In progress.

Castro Carazo University

Bachelor's Degree, Business Administration

CertiProf

Certified Scrum Professional, Scrum

Professional certification.

Google

Agile Project Management, Project Management

Professional certificate.

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