Resume
Web Systems Engineer & Full-Stack Developer
Building internal tools, automation pipelines, and performance-focused web systems across modern stacks.
Languages
PHP, JavaScript, TypeScript, SQL, HTML5, CSS3
Frameworks
React, Node.js, TailwindCSS
Platforms
WordPress (VIP), AWS (Amplify, Lambda, Cognito, RDS, S3), Supabase, Vercel
Core Strengths
Full-stack development, WordPress/Woocommerce plugin/block engineering, API integrations, AWS workflows & automation, SQL data logic, Core Web Vitals performance tuning, attribution & analytics architecture, MarTech automations and optimizations.
2023 — Present
Highlights:
Architected enterprise performance improvements, including a VIP-compliant Gutenberg Block system → LCP 5.5s → 3.2s, Lighthouse 70 → 83
Built UTM Attribution plugin powering multi-touch tracking across web + CRM funnels
Created marketer-friendly GTM Event Button Block for standardized event pipelines
Developed secure React-based AWS document portal (Amplify, Cognito, RDS, Lambda, S3) with RBAC + audit logging
Built REST-based ingestion pipelines into a data warehouse for analytics + forecasting
Delivered automation workflows across CRMs, email providers, and lead platforms
2021 — 2023
Built and maintained backend systems, automations, and PHP/SQL infrastructure supporting high-volume marketing and operational workflows.
Highlights:
Developed PHP + SQL-driven automation frameworks for lead routing, attribution logic, and CRM/ops workflows
Built and maintained API integrations into third-party platforms (Five9, Mailchimp, Hover, Birdeye, internal CRMs)
Engineered cron-based data pipelines running on a VPS to transform, clean, and distribute data across systems
Architected an extensible utility framework for logging, error handling, and maintainability across automation codebase
Designed and operated server-level scripts and ingestion processes for operational data warehousing
Orchestrated GoDaddy VPS infrastructure migration (Gen3 → Gen4) with zero downtime impact
Led full Joomla → WordPress rebuild, preserving custom functionality while improving extensibility and stability
Delivered Zapier-based integrations for fast-paced marketing automation workflows
2021 — Present
Engineering improvements across B2C and B2B ecommerce platforms, enhancing WooCommerce performance, data visibility, and user experience.
Highlights:
Optimized performance and UX across WooCommerce B2C and B2B websites, collaborating with designers to implement improved layouts and interactions
Built an internal WooCommerce data dashboard to surface order, inventory, and revenue insight for team decision-making
Developed lifecycle automation workflows and segmentation logic supporting retention and repeat purchase behavior
Implemented data and event integrations between WooCommerce, email platforms, and analytics systems
2019 — 2021
Led technology, marketing operations, and data infrastructure initiatives during rapid organizational growth (expansion from 1 market to 4).
Highlights:
Progressed from Marketing Developer to Marketing Director, owning strategy, analytics, and technology integration
Designed and implemented internal systems for lead management, call center workflows, and automated customer pipelines
Engineered custom tools that enhanced efficiency across sales, operations, and marketing handoffs
Built data dashboards and reporting models for forecasting, ROI analysis, and lifecycle performance
Drove website redesign + testing initiatives, achieving measurable conversion improvements (237% lift, 175% CTR gains)
Directed cross-functional teams and mentored engineers/marketers on technical implementation and process automation
Standardized brand systems and coordinated with creative agencies (web, TV, radio, design) to ensure operational cohesion
2009 — 2019
Delivered full-stack web development and digital product solutions for small businesses, early-stage startups, and music industry clients. Combined engineering, UX design, and brand support to build functional online platforms and creative assets.
Highlights:
Built custom websites using HTML/CSS, PHP, and WordPress, including bespoke themes and plugins
Designed UX flows and page architectures to support lead funnels, e-commerce, and content publishing
Created brand and visual systems (logos, identity suites, album art, promotional graphics) for musicians and small business clients
Produced marketing copy and social content campaigns supporting launches and event promotions
Managed end-to-end project execution: requirements, design, build, deployment, and maintenance
Strong cross-functional communication — comfortable working with engineering, product, marketing, and leadership teams.
High ownership and autonomy — able to take a problem from definition to delivery without heavy oversight.
Fast, pragmatic problem-solver — prioritizes outcomes and uses AI tools to speed up iteration and QA.
Operates well in ambiguity — can make decisions with incomplete information and move projects forward.
Systems-level thinking — understands how technical decisions affect business outcomes and user experience.
Leadership-oriented collaboration — experienced guiding discussions, managing expectations, and presenting solutions to stakeholders.
References
“He's one of the rare professionals who can bridge the gap between deep technical capability and real business understanding. He never just built a solution, he understood the business case behind it. His integration work created a lasting impact across multiple systems and departments, with an incredible ability to simplify complexity and design solutions that actually solved the root problem instead of just addressing the symptoms.”
John Kosmides
Vice President of Marketing
Perfect Power Wash & Universal Windows Direct — Direct Manager
“Karol is a wildly multi-talented man with an absurd amount of expertise in numerous fields. He's an incredible mentor and played a critical role on my path to software development, but his skillset allows him to operate as an expert in nearly every aspect of a business. Whether you need someone to lead or support you in any role, Karol is your man.”
Julian Quesada
Software Engineer
Direct Report
Open to new engineering roles and select consulting engagements.
If you're hiring or exploring a systems/automation project, feel free to reach out.