Vache is available for hire

Vache Katsadze

Verified Expert in Engineering

Back-end Developer

Location

Tbilisi, Georgia

Toptal Member Since

September 7, 2022

Vache is a software engineer who has developed numerous C and C++ applications for different companies, including Microsoft. He has led efforts to build public transportation payment system software with up to 500,000 daily active users. Vache's diverse working experience and strong academic background make him a significant contributor to any team.

Algorithms SQL RDBMS Git Linux CMake CLion C C++Windows Microsoft Kinect Embedded Systems Internet of Things (IoT)Machine Learning Artificial Intelligence (AI)Discrete Mathematics Data Structures Make LiDAR Valgrind

Portfolio

Microsoft

C#, JavaScript, TypeScript, Azure, Azure Cosmos DB

Free University of Tbilisi

Object-oriented Programming (OOP), Data Structures, Algorithms, C++, Java...

Microsoft

C, C++, C#, Azure DevOps, CI/CD Pipelines, Docker, OpenGL, Microsoft Kinect...

Experience

Algorithms - 5 years Data Structures - 5 years Concurrency - 4 years Git - 4 years Linux - 4 years C - 3 years C++ - 3 years CMake - 3 years

Availability

Part-time

Preferred Environment

CLion, Linux, Windows, Git, Docker, C++

The most amazing...

...thing I've developed is a widely used public transportation solution with up to half a million daily active users.

Work Experience

Contract Software Engineer

2023 - PRESENT

Microsoft

Updated and maintained Microsoft Edge Discover and search pages using various technologies such as C#, ASP.NET, Azure, and JavaScript.
Involved in developing Bing stories—short, informational videos that provide relevant content to users based on the context of the website they are browsing, their recent activities, etc.
Conducted A/B tests to measure the impact of the Bing stories on user satisfaction, retention, and engagement. Achieved up to 5% estimated increase in user engagement on the Edge search page.

Technologies: C#, JavaScript, TypeScript, Azure, Azure Cosmos DB

Seminar Lead

2020 - PRESENT

Free University of Tbilisi

Held seminar sessions in Programming Methodologies and Programming Abstractions for a group of 40 students.
Evaluated students' assignments, midterm, and final exams.
Taught concepts of data structures and algorithms.

Technologies: Object-oriented Programming (OOP), Data Structures, Algorithms, C++, Java, Mathematics, CLion

Contract Software Engineer

2021 - 2022

Microsoft

Maintained closed-source Body Tracking SDK and open-source Azure Kinect Sample projects.
Released the Body Tracking SDK 1.1.1 and 1.1.2 versions, fixing 95% of the known issues, including memory leak, performance, and other user-reported problems.
Analyzed issues, feedback, and enhancement requests for the Body Tracking SDK reported on GitHub Issues. Also, I responded to users in a timely manner, solved their issues, and provided feedback.

Technologies: C, C++, C#, Azure DevOps, CI/CD Pipelines, Docker, OpenGL, Microsoft Kinect, CMake, Unity, GPU Computing, Concurrency, Visual Studio, .NET, GDB, SQL, XML, Computer Science, Mathematics, RDBMS, Object-oriented Programming (OOP), Bash, CLion, Data Structures, Algorithms, Linux File Systems, Linux Kernel, Windows, Architecture, Valgrind

Software Engineer

2019 - 2022

Azry

Maintained a public transportation system software solution that performs up to 500,000 contactless payment transactions daily.
Renewed the core of the transportation software, achieving a more versatile and flexible solution and allowing us to cover the six largest cities in Georgia.
Supervised and led a team of six software engineers to develop a remote logging system for a fleet of 1,500 devices. The system consisted of three components: a logging server, a logging service, and a desktop application.
Designed and developed a top-up payment system to perform various types of card operations for the public transportation system.
Integrated Lua execution into the core transaction processing module for more flexibility.

Technologies: C, C++, CMake, Make, Computer Networking, Operating Systems, Git, Python, Linux, SQLite, Qt, Bash, Lua, PostgreSQL, Data Structures, Algorithms, Embedded C, Assembly, Concurrency, Embedded Systems, Internet of Things (IoT), Valgrind, GDB, Team Leadership, SQL, REST, Card Payments, XML, Computer Science, Mathematics, RDBMS, Object-oriented Programming (OOP), CLion, MySQL, Linux File Systems, Linux Kernel, Architecture

Teaching Assistant

2017 - 2017

Free University of Tbilisi

Graded students’ assignments for the Programming Methodologies class.
Held QA sessions for a group of 10-15 students during office hours and helped students understand the fundamentals of object-oriented programming and Java.
Created data structures and algorithms problems for midterm and final exams.

Technologies: Java, Object-oriented Programming (OOP)

Experience

Azure Kinect Body Tracking SDK

https://docs.microsoft.com/en-us/azure/kinect-dk/body-sdk-download

I maintained and developed the Azure Kinect Body Tracking SDK for Azure Kinect DK, a spatial computing developer kit with computer vision and speech models, AI sensors, and a variety of SDKs. As a single developer on the project, I provided new releases, i.e., versions 1.1.1 and 1.1.2 for the SDK mentioned above.

Public Transportation Payment System

http://www.azry.com/transport

This solution consists of an array of dedicated modules, such as planning, scheduling, operations, payments, and network monitoring of various transportation units. I mainly focused on payment and monitoring modules and developed applications for multiple Linux-based devices.

PointPillars

Conducted research in the field of 3D object detection from data given by Radar and LiDAR sensors. Modified an already existing solution to enable using a much cheaper Radar sensor point cloud instead of a LiDAR point cloud.

Skillset

Languages

C, C++, SQL, Python, Bash, Java, Lua, Embedded C, Assembly, XML, C#, Lisp, JavaScript, HTML, CSS, Python 3, TypeScript

Frameworks

Microsoft Kinect, Qt, Unity, JSON Web Tokens (JWT), Boost, .NET

Tools

CMake, Git, CLion, Visual Studio, Valgrind, GDB, Android Studio, Make, Radar

Paradigms

Object-oriented Programming (OOP), REST, Azure DevOps, Functional Programming

Platforms

Linux, Windows, Docker, Android, Azure

Storage

RDBMS, SQLite, PostgreSQL, MySQL, Linux File Systems, Azure Cosmos DB

Other

Computer Science, Mathematics, Theoretical Computer Science, Computer Networking, Operating Systems, Data Structures, Algorithms, Discrete Mathematics, Linear Algebra, Information Theory, Probability Theory, Concurrency, System Design, Card Payments, Machine Learning, Artificial Intelligence (AI), Cryptography, Linux Kernel, Embedded Systems, Internet of Things (IoT), Architecture, Team Leadership, Message Queues, CI/CD Pipelines, GPU Computing, LiDAR, Object Detection

Libraries/APIs

OpenGL

Education

2015 - 2019

Bachelor's Degree in Mathematics and Computer Science

Free University of Tbilisi - Tbilisi, Georgia

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