Sofiia Antypenko

Hi, I'm Sofiia. I am a Software Engineer with 10+ years of commercial experience in IT, currently focused on backend and full-stack development.
I am passionate about building software that improves the lives of those around me, also really excited about Open Source Software.
I have a diverse set of skills, ranging from front-end, all the way to back-end and databases.

@s0ph1e

sofiia@antypenko.dev

Berlin, Germany

My Experience

February 2024 - Present

SumUp

SumUp’s Point-of-Sale (POS) solution empowers cafes, shops, bars, hair salons, and other businesses to operate efficiently and grow. It offers a wide range of features and integrates seamlessly into different SumUp products. I'm working on the Sales Platform - a core component serving the needs of almost all teams at SumUp and used by millions of small businesses around the world.

Technologies: backend development using Kotlin, Kafka, gRPC, protobuf.
February 2020 - January 2024

SumUp

SumUp is a global fin-tech company which empowers business owners by enabling them to accept card payments in-store, in-app and online, in a simple, secure and cost-effective way. I was leading a team which builds reliable and easy-to-integrate Billing & Subscriptions solution from scratch.

Technologies: microservices on Node.js with CQRS and Event Sourcing, MongoDB, RabbitMQ, React, MobX.
February 2017 - February 2020

Debitoor

Debitoor is easy-to-use online invoicing and accounting software designed for freelancers and small businesses. I was working as fullstack developer on tools to invoice and get paid, keep a financial overview, work with customers and accountants.

Technologies: microservices on Node.js, MongoDB, RabbitMQ, AWS, CI/CD (CircleCI, teamcity, heroku), React, backbone, webpack, gulp, Cypress.
May 2015 - January 2017

Thomas Cook

The Thomas Cook Group was the oldest and best known name in leisure travel with a history that started in 1841. I was working on multi-language system for tour packages selling, mostly focused on search functionality.

Technologies: Node.js, Angular, grunt, MongoDB, Apache Solr.
April 2014 - May 2015

Everad

Everad is a global direct advertiser and CPA network. I was involved in implementation and maintenance of cost-per-action network, Android mobile applications, website management and deploying system.

Technologies: Node.js, PostgreSQL, RabbitMQ, Redis, backbone, Angular, cloud9.
2012 - April 2014

Freelance

Various freelance projects including applications for social networks.

Technologies: PHP, MySQL, javascript, jQuery.

Education

2013 - 2015

DonNTU

Donetsk National Technical University

Faculty of Computer Science and Technology

Master of Software Engineering
2009 - 2013

DonNTU

Donetsk National Technical University

Faculty of Computer Science and Technology

Bachelor of Software Engineering

Open Source Projects

I enjoy being a part of the Open Source community. I'm contributing to large projects, maintain several modules used by thousands of developers and share some fun projects in my github account.