Tom Jaskowski, Developer in Warsaw, Poland
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Tom Jaskowski

Verified Expert  in Engineering

CTO Developer

Warsaw, Poland
Toptal Member Since
August 29, 2013

Experienced developer, systems architect and manager. Tom's primary technologies are web (architecture, server-side, client-side), Python (mostly Django), JavaScript, various databases and storage engines, PHP, and infrastructures and tools provided by Amazon, Google, Microsoft, etc. He is able to design complex and efficient systems from the ground up and manage small- to medium-sized teams.


Elasticsearch, Git, Odoo, Django, Python, JavaScript 6, Django ORM...
Seamless Medical Systems
JavaScript, Django, Python, JavaScript 6, Django ORM, Amazon Web Services (AWS)...
Lua, MySQL, JavaScript, PHP, Python, JavaScript 6, Amazon Web Services (AWS)...




Preferred Environment

Git, PyCharm, Ubuntu, Linux, Amazon Web Services (AWS), Google Cloud

The most amazing...

...thing I've done is co-design and implement the internal API of a medical system and then educate developers in its highly intuitive use.

Work Experience

Cloud Team Lead

2017 - 2021
  • Led a team of highly skilled individuals to develop and maintain a product.
  • Designed processes within the team around issue resolution and reporting.
  • Architected the solutions for the API server and such.
  • Communicated with and reported to upper management.
  • Participated in disaster recovery procedures, fulfilling the role of deputy disaster coordinator.
  • Contributed significantly to product design meetings and project balancing acts.
  • Monitored the well-being of the system, data, clients, and solutions.
  • Analyzed data based on billions of records and provided insights.
  • Drove resolution of both technical and non-technical issues within the teams.
Technologies: Elasticsearch, Git, Odoo, Django, Python, JavaScript 6, Django ORM, Amazon Web Services (AWS), Agile Software Development, Less, Swagger, React, Microservices, Back-end, APIs, Go, Infrastructure as Code (IaC), jQuery, PyCharm, Test Automation, AWS Lambda, Lambda Functions, Amazon DynamoDB, NoSQL

Team Lead Cloud Technologies

2012 - 2017
Seamless Medical Systems
  • Co-designed three generations of internal APIs, involved in communication between mobile apps, web frontends, backends for frontends, and integration engines.
  • Implemented a RESTful API server for access by mobile and hosted clients.
  • Implemented several base implementations of RESTful API clients.
  • Mentored developers on RESTful APIs, HTTP protocol, and design patterns regarding mobile and hosted app behavior.
  • Worked closely with CTO and product manager on designing and implementing subsequent generations of the system.
  • Helped other teams resolve urgent issues and downtimes, as well as mitigate their future occurrence, as the Deputy DRC (Disaster Recovery Coordinator).
Technologies: JavaScript, Django, Python, JavaScript 6, Django ORM, Amazon Web Services (AWS), Agile Software Development, Less, Django REST Framework, Microservices, Back-end, APIs, jQuery, PyCharm, Test Automation, AWS Lambda, Lambda Functions


2010 - 2014
  • Created two twin social networks based on Kohana PHP framework and various HTML5 technologies.
  • Implemented a geolocation-based chat system around the concept of discussing TV shows with people from the same area.
  • Moved a photographer's site from Flash to HTML5 with support for touch and mobile devices.
  • Maintained and extended an intranet for managing members of a school-like religious organization.
  • Co-developed a system for gathering, displaying, and responding to user reviews placed on various sites on the internet.
Technologies: Lua, MySQL, JavaScript, PHP, Python, JavaScript 6, Amazon Web Services (AWS), Agile Software Development, Back-end, APIs, jQuery, MooTools, Twitter API, Zend Framework, Test Automation

Information Systems Engineer

2009 - 2010
Invac Technologies
  • Created tens of systems based on Drupal CMS.
  • Co-created a news aggregation site based on Drupal CMS.
  • Designed and integrated several different company-centric intranet sites.
  • Gave feedback on and created fund-gathering applications (submissions for government programs supporting innovative technologies).
  • Performed day-to-day tasks for supporting the non-technical part of the team (including research and opinions issuing).
Technologies: JavaScript, PHP, JavaScript 6, Back-end, jQuery

A social network with a special emphasis on privacy, mainly targeted at college students. It contained standard social features (such as messaging and multimedia sharing), group work features, an advertisements section, a small auction platform, blogs, and personal media galleries. All activity was reported to the feed-like channel with respect to privacy and sharing settings.

Realizing Added Value with Semantic Web - Publication in Springer Verlag

Publication about the possible value of Semantic Web published as part of the On The Move conference 2005 publications.

Seamless Medical | GetWell Practice

Python, Lua, JS, Objective C-based ecosystem around supporting patient registration process, from patient and staff perspective, managing outbound and inbound communication, mapping from and to external systems, and analyzing the data gathered.


Python, JavaScript 6, PHP, Less, JavaScript, SQL, UML, XML, Lua, Bash, Go, PHP 5


Django, Bootstrap, Kohana, Swagger, Zend Framework, Web2py, SilverStripe, Flask, Django REST Framework


jQuery, Tastypie, Django ORM, Twitter API, MooTools, React


REST, Continuous Integration (CI), Test Automation, Unit Testing, Agile Software Development, Microservices, Web Architecture

Platforms, Amazon Web Services (AWS), Drupal 6, Linux, AWS Lambda, Ubuntu, Android, iOS


Back-end, Google Home, Amazon Echo, APIs, Lambda Functions, FastAPI, Code Architecture, HTTP, Semantics, CTO, Infrastructure as Code (IaC)


PyCharm, Git, Odoo, Adobe Photoshop


SQLite, MySQL, Elasticsearch, Google Cloud, PostgreSQL, Amazon DynamoDB, NoSQL

2004 - 2011

Masters Degree in Business Administration

Warsaw School of Economics - Warsaw

2004 - 2011

Masters Degree in Quantitative Methods in Information Systems and Economics

Warsaw School of Economics - Warsaw