Tomasz Stachewicz
Verified Expert in Engineering
Software Developer
Warsaw, Poland
Toptal member since November 21, 2024
A tech leader, Tomasz has been a software developer, manager, and entrepreneur for a decade. He has led a thriving software company with 25+ employees that was acquired by a tech giant. Transitioning to a senior managerial role in the acquired company, he shifted gears to become a senior staff engineer. Currently dedicated to advancing as a senior individual contributor (IC), Tomasz seeks fresh opportunities to tackle new head-on engineering challenges.
Portfolio
Experience
- SQL - 20 years
- Linux - 19 years
- JavaScript - 18 years
- Ruby on Rails (RoR) - 17 years
- Ruby - 17 years
- PostgreSQL - 15 years
- Management - 11 years
- Software Architecture - 10 years
Availability
Preferred Environment
Linux, Sublime Text 3, Visual Studio Code (VS Code)
The most amazing...
...things I've done involve achieving cost savings of over 250,000 yearly in Google Maps requests and streamlining a process for determining shipment timezones.
Work Experience
Senior Staff Developer
Shopify
- Collaborated with shipping tracking and address teams, spearheading new initiatives and resolving intricate technical issues impacting performance and operational costs of both areas. Saved over $200,000 annually in Google Maps API queries.
- Transitioned to payments in May 2023 as part of a reorganization, where I spearheaded profile assessment—a component of the new payments stack focusing on merchant verification and managing their financial instruments.
- Coached current and aspiring staff developers, managed staff, and organized meetings within large pillars to share knowledge and level up.
Senior Development Manager
Shopify
- Headed a team that developed a caching mechanism for 3rd-party shipping rates. Reduced wait time during checkout and lowered cart abandonment rate.
- Oversaw a team that created an improved shipping administration that resulted in greater adoption of free and flat-rate shipping rates, increasing the store's conversion rates.
- Coached managers and senior developers who aspired to acquire a managerial role.
Founder, CEO, and Developer
Rebased
- Established the company, led it for over a decade, and expanded it to a peak of 30 engineers.
- Delivered multiple projects, both greenfield for startups and maintenance and improvement for scaleups and large companies.
- Spearheaded the company to a successful acquisition by Shopify in 2021.
Experience
ArtRage
https://artrage.pl/In 2016, I handed it over to my cofounder to focus on Rebased. It is still in operation.
Education
Master's of Engineering Degree in Engineering and Applied Physics
Warsaw University of Technology - Warsaw, Poland
Skills
Libraries/APIs
React
Tools
Sublime Text 3
Languages
Ruby, SQL, JavaScript
Frameworks
Ruby on Rails (RoR), Angular, Ember.js
Paradigms
REST, Management
Platforms
Linux, Visual Studio Code (VS Code)
Storage
PostgreSQL, MySQL, Redis
Other
Software Architecture, Data Science, Physics, Numerical Methods, Numerical Simulations, Applied Mathematics, Applied Physics, Electronics, Coaching
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