John Lazaro

Full Stack Developer

Passionate about engineering solutions — I love to troubleshoot, solve complex problems, and build systems that are fast, reliable, scalable, and maintainable.

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Services

I partner closely with stakeholders to uncover what truly matters, the goals, success metrics, and the right technology to get there. Every project I work on is backed by clear objectives, a solid roadmap, proactive communication, and measurable milestones.

WordPress Development

  • Custom theme and plugin development tailored to business needs
  • E-commerce, e-learning, and marketing platform builds
  • Application-level architecture and code optimization
  • Version control, pipelines, and team workflows

Page Speed & Performance Optimization

  • Optimize Core Web Vitals and overall site responsiveness
  • Diagnose and resolve front-end and server-side bottlenecks
  • Apply caching strategies (CDN/Edge, FastCGI, Redis, object, page, fragment)
  • Tune and configure servers for PHP-FPM and Nginx performance

Cloud & DevOps

  • Provision and manage scalable cloud environments
  • Build automated CI/CD pipelines for reliable deployments
  • Architect systems with focus on availability, security, and cost efficiency
  • Design and maintain AWS-based infrastructure with monitoring and observability

Skills & Tech Stacks

I’m always learning and adapting to the fast-changing tech landscape, exploring new frameworks, tools, and workflows to stay ahead. Continuous improvement has always been part of how I grow as a developer and problem-solver.

HTML5 CSS3 JavaScript PHP MySQL MariaDB WordPress GitHub AWS Linux Cloudflare Nginx

WP & Backend Development

  • PHP
  • MySQL / MariaDB
  • WordPress Architecture
  • LearnDash
  • BuddyBoss
  • WooCommerce
  • GamiPress
  • ACF
  • Gravity Forms
  • Custom Plugin Development
  • Theme Development
  • Performance Profiling (Query Monitor, Code Profiler)

Frontend Development

  • HTML
  • CSS
  • JavaScript
  • TypeScript
  • jQuery
  • React
  • Next.js (App Router)
  • Vercel
  • TailwindCSS

DevOps & Infrastructure

  • Git
  • Bitbucket
  • GitHub Actions (CI/CD)
  • Docker
  • Ansible
  • Linux Server Management (Ubuntu, Amazon Linux)
  • Nginx
  • PHP-FPM Tuning
  • OPcache
  • Redis
  • FastCGI Cache
  • Cloudflare (DNS/CDN)
  • New Relic APM
  • k6 Load Testing
  • Observability & Monitoring

AWS Services

  • S3
  • CloudFront
  • Lambda
  • API Gateway
  • DynamoDB
  • SQS
  • SNS
  • SES
  • RDS
  • Route 53
  • EC2
  • EBS
  • IAM
  • VPC
  • CloudWatch
  • WAF
  • ECS / Fargate
  • AWS SDK

Experiences

With over a decade of experience, I've collaborated with startups, agencies, and established companies across time zones. I focus on delivering solutions that bridge business goals and technology, always with a balance of practicality, performance, and maintainability.

Focus on Force

Aug 2020 – Present

Senior Full-Stack Developer

  • Support and enhance a large-scale e-learning and e-commerce platform for Salesforce certification training.
  • Deliver platform improvements, performance enhancements, and solutions aligned with business goals.
  • Drive continuous optimization through bottleneck analysis and collaboration with QA for regression testing.
  • Troubleshoot complex WordPress/LMS issues and implement high-impact fixes across LearnDash, WooCommerce, and GamiPress.
  • Maintain AWS integrations: S3 offload, CloudFront CDN/signed URLs, WAF, and PHP SDK-based workflows.
  • Provide clear technical documentation and work within Agile processes (Jira, Bitbucket).
  • Tech Stack: WordPress, PHP, MySQL, AWS (S3, CloudFront, WAF), New Relic, GTMetrix, Google PageSpeed Insights, WP Engine, WooCommerce, LearnDash, GamiPress

People Partners BPO

Jul 2018 – Jan 2020

Full-Stack Developer

  • Supported a WordPress-based LMS platform by delivering new features, enhancements, and issue resolutions.
  • Led the development of a custom front-end CMS application used internally across teams.
  • Built REST API services integrated with a Virtual Reality application (Oculus Go).
  • Provided technical support and troubleshooting for LearnDash and internal e-learning workflows.
  • Managed AWS infrastructure (EC2, RDS, CloudFront) to maintain platform stability and performance.
  • Integrated marketing automation tools such as Infusionsoft, Zapier, and PlusThis.
  • Collaborated within Agile processes using Jira and Bitbucket.
  • Tech Stack: WordPress, LearnDash, BuddyBoss, WooCommerce, ACF, ReactJS, CoreUI, AWS (EC2, RDS, CloudFront, S3), HTML/CSS/JS, Linux, Git, Bitbucket, Infusionsoft, Zapier, Adobe XD

Freelancing

Mar 2017 – Jul 2018

Full-Stack Developer

  • Built pixel-perfect, fully responsive WordPress pages from design assets.
  • Developed custom landing pages, funnels, and marketing-focused web components.
  • Set up hosting, domains, and databases through cPanel to support client websites.
  • Tech Stack: WordPress, HTML5, CSS3, Bootstrap, JavaScript, jQuery, cPanel

Flat Planet

Jul 2015 – Mar 2017

Front-End Developer

  • Developed front-end applications using AngularJS, Ionic Framework, and Cordova.
  • Designed UI/UX aligned with project scopes and integrated with backend APIs.
  • Implemented API integrations to retrieve and send data between mobile/web apps and servers.
  • Collaborated closely with clients and developers on interface requirements and feature planning.
  • Tech Stack: AngularJS, Ionic, Cordova, HTML5, CSS3, JavaScript, REST APIs

Curo Teknika

Dec 2012 – Jul 2015

Web Application Developer

  • Developed responsive internal web applications using Zend Framework and MySQL.
  • Designed and implemented UI components with HTML5, CSS3, LESS, JavaScript, and jQuery.
  • Collaborated with project owners to clarify requirements, scope features, and plan timelines.
  • Performed end-to-end testing to ensure quality, stability, and proper functionality.
  • Tech Stack: Zend Framework, PHP, MySQL, HTML5, CSS3, LESS, Bootstrap 3, JavaScript, jQuery

Latest Projects

Each project I take on starts with a business challenge and ends with a well-architected, working solution. I make sure the systems I build operate effectively, scale smoothly, and provide a seamless experience for users. Every decision comes with trade-offs, and I aim to make the right ones for long-term success.

Tech With John Blog

LiveWright

Health & wellness e-learning platform

  • Provided consulting and development support for a large LearnDash-based e-learning platform.
  • Resolved major performance issues following their migration from WP Engine to Cloudways.
  • Tuned server-level configurations (Nginx, PHP-FPM) and optimized LMS performance at the app level.
  • Implemented Redis object caching to enhance speed and reduce database load.
  • Integrated LinkedIn Insights for marketing analytics and tracking.
  • Developed automated Playwright E2E tests to support ongoing QA and stability.
  • Tech Stack: WordPress, LearnDash, BuddyBoss, Elementor, PHP, Nginx, Redis, Cloudways, Playwright, LinkedIn Insights
View Site
Focus on Force

Focus on Force

Salesforce certification and e-learning training platform

  • Large-scale WordPress-based LMS providing Salesforce training to global learners.
  • Contributed to major platform improvements, stability, and long-term system reliability.
  • Played a key role in enhancing user experience, platform performance, and operational efficiency.
  • Implemented new features, heavy customizations, and solutions across LearnDash, WooCommerce, and GamiPress.
  • Performed continuous maintenance including database cleanups, updates, and QA-aligned regression testing.
  • Optimized platform performance using New Relic diagnostics and targeted enhancements.
  • Built AWS integrations including S3 offload, CloudFront CDN, signed URLs, presigned uploads, AWS SDK workflows, and WAF rules.
  • Tech Stack: WordPress, PHP, MySQL, LearnDash, WooCommerce, GamiPress, AWS (S3, CloudFront, WAF), New Relic, Jira, Bitbucket
View Site
Tech With John Blog

Tech With John Blog

Personal tech blog

  • Built a personal blog platform focused on AWS, DevOps, WordPress, and architecture topics.
  • Developed the site using Next.js with automated CI/CD for local, staging, and production (GitHub Actions).
  • Implemented Husky pre-commit and pre-push hooks for auto-linting and build validation.
  • Deployed the platform on Vercel with Cloudflare handling DNS.
  • Tech Stack: Next.js, React, GitHub Actions, Husky, Vercel, Cloudflare, MDX
View Site
Urban Gadgets

Urban Gadgets

E-commerce platform for premium tech & lifestyle products

  • Provided development and consulting support for WooCommerce-based online retail operations.
  • Resolved POS and inventory sync issues by designing a batch-processing workflow to replace inefficient sync logic.
  • Implemented a logging system stored in AWS S3 for cost-efficient tracking and diagnostics.
  • Tech Stack: WooCommerce, PHP, MySQL, WordPress, AWS S3, AWS SDK, WP Engine
View Site

Let's Work Together

Need a solution? Let’s talk.

Email
techwithjohnblog@gmail.com
LinkedIn linkedin.com/in/johnlazaro