esender.me

About

I am a seasoned software engineer based in Berlin, Germany. I have a strong interest in tasks related to performance enhancement and interface refinement. This comes from my belief that exceptional interfaces are created through careful attention to detail.

When I'm not engaged in engineering tasks, I prioritize maintaining a healthy lifestyle. This includes running and other outdoor workouts. During my leisure time, I enjoy going on hiking and trekking expeditions.

In addition, I am passionate about street photography, a hobby that allows me to capture the essence of everyday life. Despite time constraints, my enthusiasm for learning and trying new experiences remains unchanged.

Work Experience

Taktile GmbH

Senior Software Engineer / Jan 2023 - Present
React, TypeScript

Pitch Software GmbH

Senior Software Engineer / Jan 2021 - Dec 2022
ClojureScript, Re-frame, Reagent, React

As a Performance Team member, my role focused on enhancing system performance for a better user experience. We conducted system-wide investigations, developed internal tools for performance data measurement and collection, and addressed the root causes of performance issues.

Besides collaborating with product teams to improve their code performance and sharing our expertise, my role also extended to participating in company-wide engineering projects and working groups.

I personally contributed to the documentation of our internal "Point of contact" approach framework.

Earnest Inc

Software Engineer / Jan 2019 - Dec 2021
JavaScript, Preact, Webpack, Optimizely

My responsibilities spanned various areas, including page speed optimizations that significantly improved load times. I was also instrumental in the setup of split tests and the configuration of a development environment. Part of my duties included working closely with the marketing team to put into effect front-end product features.

Notably, my work on webpack configurations resulted in a major boost in rebuild speeds, reducing them from over 20 seconds to less than one second. Furthermore, my efforts in establishing screenshot testing significantly aided the QA team's operations.

Student Loan Hero Inc

Front-end Engineer / Mar 2018 - Jan 2019
React, JavaScript, Webpack

I implemented product design features, optimized page speeds, and enhanced the quality of the codebase. I notably reduced webpack build times, conducted continuous refactoring of critical parts of the legacy system, and integrated a new build system, thus accelerating feature release and improving the developer experience.

I also collaborated with a remote engineering team to ensure smooth knowledge transfer following the acquisition of Student Loan Hero by LendingTree.

Runtime LLC

Front-end Engineer / Mar 2016 - Mar 2018
React, Webpack, GitLab CI, Gemini

I primarily contributed to "SitePokupok", a wholesale platform. I implemented new features from scratch using React, enhanced initial render times of complex components from 8 seconds to 1 second, and increased test coverage up to 85% using Jest and Gemini (now Hermione). I also migrated the building system to Webpack, improving the overall development process.

Beyond my main project, I offered bug fixes and front-end consultations for other company projects and mentored junior engineers.

Racoons Group LLC

Full-Stack Engineer / Oct 2012 - Dec 2015
Ruby on Rails, AngularJS, Backbone, ExpressJS

I had the role of leading an engineering team that worked closely with one of the company's top clients. A key part of my job was to discuss technical questions with the product owner, review developers’ code, and make technical decisions.

Freelance

Web Developer / Jan 2008 - Oct 2012
HTML, CSS, jQuery, Joomla, PHPShop

Education

Kazan National Research Technical University named after A.N.Tupolev

Institute of radio-engineering and telecommunications / 2007 - 2011
Bachelor of Engineering and Technology