Aliaksei Bliznichenka
Senior Software Engineer at EPAM Systems
Cracow Metropolitan Area Poland
Summary
👤
Senior🎓
Top SchoolAliaksei Bliznichenka is a Senior Software Engineer with six years of experience designing and delivering scalable distributed systems for FinTech and BigTech clients, currently based in the Cracow metro area. He specializes in backend engineering with Java, gRPC, Spanner and cloud-native tooling on AWS, and has a track record of optimizing high-concurrency services — including a web crawler that processes 3M+ URLs per request. Aliaksei has solved subtle consistency and performance problems in production, for example eliminating read-after-write errors via a Memcached layer and preventing transaction memory overflows through intelligent batching. He also improves developer productivity and onboarding, cutting local startup time by 75% with a custom Lambda environment and reducing ramp-up time for new hires by 60%. An active problem-solver, he practices algorithmic engineering on GitHub with Java LeetCode solutions, demonstrating care for time/space complexity alongside system design.
6 years of coding experience
4 years of employment as a software developer
Bachelor's degree Computer Science, Bachelor's degree Computer Science at Belarusian State University of Informatics and Radioelectronics
Github Skills (12)
algorithm10
data-structures10
javas10
algorithms10
data-structure10
java10
lintcode10
binary-tree10
stacker9
stack9
tree-traversal8
hashmap7
Programming languages (4)
Github contributions (5)
neetcode-gh/leetcode
Dec 2023 - Feb 2024
Leetcode solutions
Role in this project:
Back-end Developer
Back-end DeveloperContributions:13 PRs, 13 comments in 2 months
Contributions summary:Aliaksei contributed solutions to LeetCode problems written in Java. They implemented algorithms and data structures to solve these problems, including solutions involving stacks, binary search trees, and tree traversal techniques. Their contributions demonstrate proficiency in Java and problem-solving within the context of algorithm design. The user also demonstrates an understanding of time and space complexity in their problem-solving approach.
pythonleetcodejavascriptleetcode-solutionsjava
a1exanddrovich/LCSolutions
Feb 2025 - Apr 2025
Contributions:357 PRs, 170 pushes, 342 branches in 1 month
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