Valentin Calinescu
Software Engineer III - Fitbit Device Management at Google
Romania
Summary
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Rockstar🎓
Top SchoolValentin Calinescu is a software engineer with 10 years of experience, currently working on Fitbit Device Management at Google after progressing through Android platform and reliability roles. He combines systems-level Android expertise—having contributed to Window Manager—with backend chops honed from internships at Amazon and hands-on backend work at Stone Soup Tech. Academically grounded with a Master’s in Artificial Intelligence from the University of Bucharest, he blends algorithmic rigor with practical product delivery. His GitHub contributions to the well-known haoel/leetcode collection demonstrate strong C++ skills in algorithms, dynamic programming and data structures. Based in Romania, he brings a track record of moving between low-level platform engineering and scalable service development, making him comfortable across the stack and performance-sensitive environments. Unusually, he pairs production experience at a major consumer devices team with deep problem-solving practice reflected in his public algorithm solutions.
10 years of coding experience
4 years of employment as a software developer
"Mircea cel Batran" National CollegeMaster's degree, Artificial Intelligence, Master's degree, Artificial Intelligence at University of Bucharest
Github Skills (10)
data-manipulation10
data-structures10
algorithms10
c-language10
cprogramming-language10
data-structure10
lintcode10
dynamic-programming9
sorting8
binary-tree8
Programming languages (2)
Github contributions (5)
haoel/leetcode
Oct 2015 - Jan 2017
LeetCode Problems' Solutions
Role in this project:
Back-end Developer
Back-end DeveloperContributions:43 commits, 43 PRs, 19 pushes in 1 year 2 months
Contributions summary:Valentin's primary focus was implementing solutions to LeetCode problems, indicating a strong proficiency in algorithms and data structures. They wrote solutions in C++ for a range of problems, including those involving dynamic programming, array manipulation, and binary trees. The contributions demonstrate an understanding of algorithm design, optimization techniques, and coding best practices. The user also implemented solutions to problems such as finding the h-index, moving zeroes, and other array manipulations, showing good programming skills.
leetcodeproblemsleetcode-problems-solutionsleetcode-solutionsdata-structures
Vally79/hackitall18
Nov 2018 - Nov 2018
Contributions:20 pushes, 1 branch in 1 day
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