@jeff_drumgod
PT

Journey

I moved from generalist web projects into high-scale e-commerce operations. Below are the main companies and contexts where I built, led, or unblocked technology.

Founder, CTO & Software Architect

Trivod

Boutique technical consulting for high-volume e-commerce operations. Personalized service focused on performance, integrations, and technology strategy aligned with business outcomes.

  • Boutique specialized service for high-scale e-commerce clients
  • Custom development of integrations and interfaces for high-transaction-volume stores
  • Consulting for e-commerce managers: GTM, tracking, sales performance analysis, and funnel optimization
  • Information security guidance for online store processes and LGPD compliance
  • Automated workflows for sales, internal support, CRM integrations, and fulfillment systems
  • Core Web Vitals and technical SEO optimization with direct impact on conversion and revenue
  • Platform migration diagnostics and planning with technical and business roadmap
  • Custom AI-powered development and intelligent automated workflows for e-commerce operations
Co-CTO, Consultant

Rankme

Shared technical leadership at a VTEX-specialized agency. Defined storefront architectures, implemented advanced customizations, and built integrations for e-commerce operations.

  • Architecture and development of VTEX IO and Legacy storefronts
  • Custom checkout, catalog, and integrations with ERPs and hubs
  • System architecture design for e-commerce-integrated platforms
  • Technical standards and code review for the development team
Co-founder & Principal Developer

Extraball

Company co-founded with SEO and digital media specialists. We focused on boutique e-commerce projects, treating each store as a product with thoughtful architecture, refined UX, and strong performance. It was later acquired by Infracommerce.

  • Boutique e-commerce projects with quality over volume
  • SEO and technical development integrated from day one
  • Company acquired by Infracommerce, with clear market validation
  • Experience with complex catalogs, custom checkout, and integrations
Founder & Developer

Webcres

First company. Generalist web development across websites, systems, and digital solutions. It gave me a broad technical foundation built through practice, from prospecting to deployment, including budgeting and support.

  • Full autonomy: prospecting, budgeting, development, and delivery
  • Ownership mindset from the start, with technology serving the business
  • Generalist technical foundation that shaped future specialization
  • Company passed on to family
Consultant → CTO

Retail Hub

Led a remote multidisciplinary team on a multi-tenant SaaS headless platform handling millions of daily pageviews. Responsible for architecture, infrastructure, cost optimization, and technical reporting to the board.

  • Full infrastructure overhaul and migration to distributed headless architecture
  • Rebuilt critical systems serving millions of pageviews per day
  • Headless storefronts with dynamic components and custom integrations
  • Infrastructure cost optimization and platform-wide client performance
  • Technical and product reporting to the board with business-aligned insights
  • AI-powered workflows for content generation and automated project quality assessment
Developer → Team Lead → Architect → Principal Engineer

Infracommerce

I joined after Extraball's acquisition and grew inside the operation through development, team leadership, product architecture, and principal engineer responsibilities. It was a long stretch of work on large-scale e-commerce projects.

  • Remote coordination of a ~12-person front-end development team
  • Storefront customization for large-scale e-commerce operations
  • Technical analysis and implementation of high-complexity projects
  • Front-End Product Engineer, responsible for internal products used by all clients
  • Solution architecture for storefronts and reusable components at scale
  • Occasional technical consulting on strategic projects
Principal Front-End Developer

Tutor.id

Global edtech platform connecting students with private tutors for in-person and remote classes. First educational marketplace to offer certified teachers for students with learning disabilities and ASD, powered by a machine learning recommendation algorithm.

  • Full development of the platform and company website
  • Front-end engineering for global student and teacher experience
  • Scheduling flow, virtual classrooms, and video conferencing system
  • Financial system: subscriptions, payments, and tutor payouts
  • Interface adapted for multiple profiles: students, teachers, and administrators

Case Studies

Some problems require more than institutional credentials. These cases show diagnosis, decision-making, and trade-offs in real context.

Case Study

Node.js batch processing without a rewrite

Editorial refactor story about a Kafka and MongoDB pipeline: event loop diagnosis, async generators, and operational impact without infrastructure changes.

Stable event loop during large batches Constant memory usage Refactor delivered in hours, not weeks
Read case study