Przemysław Pełszyński
Senior Developer | Team Leader | Mentor

Creative and independent developer, looking for a place to unleash creativity and help your company grow

7+ years of experience

Kodologia
Junior Developer
April 2017 — May 2019

I started my journey in monolith LMS startup Kodologia. It focused on developing programming skills using browser.

Ruby on Rails, PostgreSQL, RSpec

Humly
Backend Developer
June 2019 — Mar 2022

After Kodologia I started working for swedish startup Humly as a part of seven-member team. We took this project from local team and grew it very quickly.

Ruby on Rails, MongoDB, AWS, Heroku, GraphQL

Glasson
Backend Developer | Mentor
Mar 2022 — September 2022

One of my students got job at lens search based startup - Glasson. I was his mentor and developer for half year.

Ruby on Rails, Docker, RSpec, ElasticSearch

Humly
Team Leader
October 2022 — Now

After Humly released it's internal team, we came back to development. During this Time we helped scale business from startup to scale-up. With new CTO I introduced Shape Up and became Team Leader.

Ruby on Rails, MongoDB, AWS, Heroku, GraphQL, GDPR, HubSpot

NDA
Lead Developer
October 2024 — January 2025

Using latest technologies and my market knowledge I was asked to create AI powered asset management system. It combines optimized LSTM model with classical algorithm approach and Django dashboard.
With generative AI I created functional prototype in three weeks.

Python, Django, Tensorflow, LSTM

Education

SWPS University
Psychology
October 2024 - Now

To become a better Team Leader, I started studying Psychology in the best possible school in my country.

Key skills

Ruby On Rails
AWS/Google Cloud
TDD/Testing
Patterns
Clean code
Python
Machine Learning
Team Leading

Want to work together?

Contact me

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