Jakub Kubacki

Tech Lead

Printumo - Print on demand for artists

Copenhagen, Denmark / Remote

July 2024 - Present

• Built and launched a SaaS print-on-demand platform from scratch using Rails, Hotwire, AWS, Postgres, Redis, and Sidekiq.

• Delivered MVP to market in under 3 months, leading a cross-functional remote team.

• Designed and released a Shopify App using GraphQL API and multiple third-party service integrations.

• Performed requirements analysis and defined product roadmaps with executives and business stakeholders.

• Implemented analytics and A/B testing dashboards to guide product decisions.

• Improved user retention and conversion through data-driven feature optimization.

• Established production infrastructure including CI/CD and monitoring pipelines.

VP of Technology

Benztown Branding USA - Leading radio imaging company

Glendale, CA / Remote

March 2019 - July 2024

• Led development of multiple SaaS products, including a radio imaging production platform, managing a cross-functional team of engineers and designers.

• Increased feature delivery throughput by ~30% by introducing CI/CD automation, standardized sprint planning, and reducing manual QA bottlenecks.

• Designed and operated cloud-native infrastructure on AWS using Kubernetes and GitOps (ArgoCD), improving uptime from ~99.5% to 99.99% over 24 months.

• Built and maintained the company’s flagship full-stack application using React, Next.js, TypeScript, and Ruby on Rails with PostgreSQL, Redis, Sidekiq, and Elasticsearch.

• Improved security posture by introducing automated vulnerability scanning, static analysis, environment isolation, and migrating to industry-standard authentication providers.

• Developed AI-powered audio products including similarity search, voice generation, and music genre classification models.

• Modernized a 13-year-old Rails application by upgrading from Rails 4 to Rails 7, refactoring legacy code, creating comprehensive technical documentation and improving performance through caching and background processing.

• Created comprehensive technical documentation for projects.

Technical Team Leader

Netguru – Ruby on Rails software house

Remote

September 2017 - March 2019

• Led client projects across small to large-scale engagements, managing teams of up to 11 developers.

• Mentored 9 junior engineers who progressed to senior roles through structured coaching and performance development.

• Built and maintained production Ruby on Rails and React applications.

• Ran code reviews and pair programming sessions to enforce engineering standards and improve code quality.

• Managed a team of seven developers, providing mentorship, supervising development goals, and evaluating performance.

• Led the development of small, medium, and large-scale projects.

• Coordinated recruitment processes for a 200+ developer department and participated in technical interviews.

• Represented engineering teams through internal workshops, meetups, and hackathons, including Ruby on Rails training sessions.

• Partnered with clients and internal stakeholders on scoping, technical reviews, and delivery planning.

Senior Ruby on Rails Developer

Netguru - Ruby on Rails focused software house

Remote

January 2015 - September 2017

• Led Ruby on Rails projects.

• Managed teams of RoR developers.

• Conducted recruitment interviews for junior to senior levels.

Ruby on Rails Developer

E-price - e-commerce company

Remote

December 2013 - January 2015

• Built e-commerce ERP software managing sales via API integrations.

• Managed server infrastructure and deployment processes.

PHP Developer

E-price - e-commerce company

Remote

September 2010 - December 2013

• Developed and maintained ERP e-commerce software.

• Created CMS software for managing products and orders.