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Sebastian Cherny

@sebascherny

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Software Engineer with 10 years of experience in Full Stack Development.

Spain

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What I'm looking for

Looking for a challenging role that leverages my technical skills and passion for learning, with opportunities for growth and collaboration in a dynamic team.

As a seasoned software engineer, I've had the privilege of working on a diverse range of projects, from full-stack development to backend engineering. With a strong foundation in mathematics and a passion for learning, I've honed my skills in languages such as Python, JavaScript, and PHP. My experience as an independent freelancer has given me the opportunity to work with various clients, utilizing technologies like Django, React, and PostgreSQL.

Throughout my career, I've demonstrated my ability to work effectively in remote environments, leveraging tools like GCP, Heroku, and AWS for deployment and publishing. I'm well-versed in testing frameworks such as unittest, pytest, and Selenium, ensuring the delivery of high-quality products.

With a strong interest in competitive programming and scientific computing, I'm always looking to expand my skillset and take on new challenges. I'm excited to bring my expertise and enthusiasm to a new role and contribute to innovative projects that make a real impact.

Experience

Work history, roles, and key accomplishments

Backend Developer

Toptal

Jan 2023 - Sep 2023 (8 months)

Worked as an independent freelancer in different backend projects, using Python, Django, and Postgresql; GCP for deployment and publishing. LLM integration via GPT and Claude APIs. TDD with unittest, pytest, Selenium, and mocks.

Python Django PostgreSQL GCP GPT Unit Testing Pytest Selenium Mocking

Full-stack Developer

Toptal

Nov 2021 - Dec 2022 (1 year 1 month)

Worked as an independent freelancer in different full-stack projects, using React+JS for frontend, Python+Django for backend, and PostgreSQL for storage. Publishing projects in Heroku or through AWS. Docker for CI/CD.

React Python Django PostgreSQL Heroku AWS Docker

Software Engineer

Brightsector for MercadoLibre

Jan 2014 - Sep 2022 (8 years 8 months)

Code maintenance and creation of frontends using Django. CI/CD methodology with Jenkins and Bitbucket pipelines. Use of Python, Icinga web, and Linux server to create tests for MercadoLibre's API to check new code deployed.

Django Python Icinga Linux Jenkins Bitbucket Pipelines

Software Engineer Intern

Facebook Inc

Jul 2021 - Oct 2021 (3 months)

Full-stack project using Hack/PHP, React and GraphQL. Moved system for Identity Verification for running Political Ads in Brazil from deprecated system to new one in Comet. Launched without issues, getting 2000 exposures per day. Decreased users' errors in 25%.

Hacking PHP React GraphQL Identity Verification