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Nikita ZakrevskyNZ
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Nikita Zakrevsky

@nikitazakrevsky

Backend & AI Engineer at Ozgar / Specific-Group building an evidence-grounded AI assistant for legacy IBM i modernization.

Thailand
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At Ozgar / Specific-Group, I’m working on an enterprise AI assistant for understanding, documenting, and modernizing legacy IBM i / AS/400 applications. I built a configurable hybrid retrieval pipeline and evaluation workflows to compare changes to prompts, retrieval, and models.

I also built graph-query and code-navigation tools for the assistant, along with evidence-based grounding that links answer claims to source code or graph results. I wrote a COBOL parser and ingestion pipelines that chunk legacy code by program structure.

At SaM Solutions, I worked on logistics, e-commerce, and Kubernetes monitoring platforms. My work included developing functionality, fixing bugs, writing tests, and integrating Kubernetes, GitLab, and Jira.

Earlier at EnCata, I contributed to IoT and machine-vision projects, including image processing and neural networks for tool and face recognition. I hold a Master’s in Informatics and Computer Engineering from BSUIR, where my thesis focused on road marking recognition.

Experience

Work history, roles, and key accomplishments

Education

Degrees, certifications, and relevant coursework

Coursera logoCO

Coursera

Mathematics for Machine Learning: Multivariate Calculus, Mathematics

2020 - 2020

Completed the Mathematics for Machine Learning: Multivariate Calculus course on Coursera.

Coursera logoCO

Coursera

Python for Genomic Data Science, Genomic Data Science

2020 - 2020

Completed the Python for Genomic Data Science course on Coursera.

Coursera logoCO

Coursera

Neural Networks and Deep Learning, Deep Learning

2020 - 2020

Completed the Neural Networks and Deep Learning course on Coursera.

Udemy logoUD

Udemy

Certified Kubernetes Administrator, Kubernetes

2020 - 2020

Earned the Certified Kubernetes Administrator certification from Udemy.

Coursera logoCO

Coursera

Mathematics for Machine Learning: Linear Algebra, Mathematics

2020 - 2020

Completed the Mathematics for Machine Learning: Linear Algebra course on Coursera.

Stepik logoST

Stepik

Neural Networks and Computer Vision, Computer Vision

2019 - 2019

Completed the Neural Networks and Computer Vision course on Stepik.

BSUIR logoBS

BSUIR

Master's, Informatics and Computer Engineering

2017 - 2019

Master's in Informatics and Computer Engineering from BSUIR, with thesis on road marking recognition using Python, OpenCV, and PyTorch.

BSUIR logoBS

BSUIR

Bachelor of Computer Science, Computer Science

2013 - 2017

Bachelor of Computer Science from BSUIR, with thesis on image colorization using convolutional neural networks with Python, OpenCV, and Keras.

Coursera logoCO

Coursera

Introduction to Machine Learning, Machine Learning

2016 - 2016

Completed the Introduction to Machine Learning course on Coursera.

Coursera logoCO

Coursera

Mathematics and Python for Data Analysis, Data Analysis

2016 - 2016

Completed the Mathematics and Python for Data Analysis course on Coursera.

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