Oleh Astappiev
Research Fellow at Leibniz Universität Hannover
Hanover, Lower Saxony, Germany
Summary
👤
Senior🎓
Top SchoolOleh Astappiev is a Research Fellow and seasoned full-stack developer with 12 years of experience building web services, microservices, and Big Data solutions, blending Java, JavaScript (Node.js and Vue), and PHP expertise. He leads the Lernweb platform at Leibniz Universität Hannover, having migrated it from a monolith to a suite of reusable microservices and automating infrastructure with Ansible, Cloudera, and Prometheus. His background spans product-focused outsourcing projects—speeding web apps from 10s to sub-second loads—and long-term open-source work, including maintaining the widely used Applitools Eyes JavaScript SDK and front-end contributions to the popular TandoorRecipes app. A research-minded engineer, he applies machine learning to image classification while mentoring student developers and operating university compute and storage clusters. Known for simplifying and automating operations, he aims to open-source internal services to benefit broader research projects.
12 years of coding experience
9 years of employment as a software developer
Kharkiv National University of Radio ElectronicsMaster of Science - MS, Internet Technologies and Information Systems (ITIS), 2.4 German Grade, Master of Science - MS, Internet Technologies and Information Systems (ITIS), 2.4 German Grade at Leibniz Universität Hannover
English, Ukrainian, Russian, German
Stackoverflow
21reputation
3kreached
2answers
2questions
Github Skills (20)
javascript10
css10
responsive-design10
vue10
html10
frontend10
vue-jsx10
mobile-development9
ui-design9
recipe8
jpa6
dart6
flutter6
lazy-loading6
hibernate6
Programming languages (17)
Github contributions (5)
TandoorRecipes/recipes
May 2022 - May 2022
Application for managing recipes, planning meals, building shopping lists and much much more!
Role in this project:
Front-end Developer
Front-end DeveloperContributions:6 commits, 1 PR, 1 comment in 1 day
Contributions summary:Oleh primarily focused on front-end development, implementing and improving the user interface for the recipe management application. Their commits addressed mobile responsiveness issues, enhancing the visual presentation of elements like headers, menu icons, and buttons on smaller screens. They also contributed to fixing layout issues and improving the overall user experience within the recipe editing and search views. Their work included updates to Vue.js components and template modifications.
selfhostedcookbookrecipesrecipedjango
l3s-learnweb/learnweb
Oct 2023 - Apr 2025
Learnweb is a collaborative search and sharing system which brings together different online services under one umbrella
Contributions:1 release, 35 PRs, 238 pushes in 1 year 6 months
collaborationlearning-platformlmssharing
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