
Nikoloz is available for hire
Hire NikolozNikoloz Gabisonia
Verified Expert in Engineering
Back-end Developer
Location
San Francisco, CA, United States
Toptal Member Since
May 3, 2022
Nikoloz is passionate about engineering. He is driven by curiosity, trying to understand how systems function and how to make them perform better. Inspired by those brave enough to explore uncharted territories in the landscape of imagination, Nikoloz is willing to contribute to projects on the back-end side.
Portfolio
Amazon.com
Java, Scala, Spark, Python 3, Big Data
Twitter
Java, Scala, Splunk
Facebook
Hack, Python
Experience
Availability
Part-time
Preferred Environment
Linux
The most amazing...
...project I've developed included bidding strategies to tackle header bidding and concealing auction formats on ad exchanges.
Work Experience
Software engineer
2022 - PRESENT
Amazon.com
- Applied ML models to solve supply chain optimization problems.
- Worked with economists to build models and data infrastructure.
- Built integrations to simplify the model rollout process.
Technologies: Java, Scala, Spark, Python 3, Big Data
Software Engineer
2021 - 2022
- Worked on a data collection and ingestion pipeline for logs generated by all microservices within Twitter.
- Provided support to analyze and visualize log data for other teams.
- Optimized early stages of the log collection pipeline to improve durability during incidents.
Technologies: Java, Scala, Splunk
Software Engineer
2019 - 2020
- Built a data infrastructure and ML models to classify sensitive content on Facebook and Instagram platforms.
- Tackled issues such as working with low quality or insufficient training data.
- Improved Instagram's infrastructure to achieve parity with Facebook infra functionality.
Technologies: Hack, Python
Software Engineer
2017 - 2019
Rocket Fuel
- Optimized an ad serving infrastructure to make the most out of the 100 milliseconds time limit set by ad exchanges.
- Developed bidding strategies to tackle header bidding, concealed auction dynamics, and improved cost per action (CPA).
- Worked on a forecasting feature to predict ad campaign performance.
Technologies: Java, Scala, Python
Software Engineer
2015 - 2016
- Provided mobile operator offers directly into the YouTube app for some third-world countries.
- Launched multiple experiments and analyzed user behavior.
- Built services to integrate with different mobile operators.
Technologies: Android, Python
Software Engineering Intern
2012 - 2012
- Optimized and expanded the functionality of HPHPc—HipHop for PHP, later known as Hack or hacklang.
- Worked on code translator to generate highly performant C++ code from PHP code.
- Added support for some new keywords in HPHPc to match the functionality of other common languages.
Technologies: HPHPc, Hack, C++, Code Generators
Experience
GNN & Tapeze
I built software for Abastumani observatory to convert historical solar activity data from huge paper rolls to digital format. I also created primitive image recognition software and stored data in a database for future analysis.
I worked on this project with an IT school teacher in 2006.
I worked on this project with an IT school teacher in 2006.
Mapspot.ge
JumpStart Georgia used volunteers to collect GPS data and created a tileset later added to OpenStreetMap and eventually to Google. I built a website for the first digital map of Georgia in 2010 and implemented features like adding points of interest to the map and finding the shortest paths.
Skills
Languages
Java, Python, SQL, Scala, Hack, C#.NET, PHP, JavaScript, C++, Python 3
Other
Algorithms, Data Structures, Big Data, Data Visualization, Data Analysis, Distributed Systems, Computer Science, HPHPc, Code Generators
Frameworks
Spark
Tools
Splunk
Platforms
Linux, Android
Storage
PostgreSQL
Education
2009 - 2013
Bachelor's Degree in Computer Science
Tbilisi State University - Tbilisi, Georgia