Денис

Denys Harkavenko [відкрити контакти](див. вище в блоці «контактна інформація»)

Kyiv, Ukraine, [відкрити контакти](див. вище в блоці «контактна інформація»)
SKILLS Python 3.6-3.12: core, asyncio, sockets, threads, multiprocess.
Libs: pandas, openCV, PyTorch, Ultralitics, pytest, FiftyOne
Databases: MongoDB, PostgreSQL
CI/CD: ruff. black, docker, docker-compose, Jenkins, DVC, bitbucket pipelines.
ETL: Dagster, airflow
AWS: S3, AIM, IoT
Additional tools: ffmpeg, telnet, serial, jbus, protobuf

EMPLOYMENT HISTORY
2024-Present Data Engineer, NDA Kyiv

- Implemented a web API for annotator data validation.
- Built robust data pipelines for the data warehouse.
- Developed integration methods with AWS S3, MongoDB, and PostgreSQL.
- Combined diverse data sources into unified formats for streamlined analysis.
- Developed pipelines for raw data collections, analysis and transfer to
annotation from various sources.
- Implemented full support for new data type (transition from images to
videos) in existing pipelines.
- Develop tools for QA and DE teams to analyze incidents and bug reports.
- Designed a DB and integrated it into the pipelines.

2022-2024 Tech Lead, Automation QA Team, NDA Kyiv

- Reduced regression testing time from 14 days to 18 hours by optimizing the
framework and testing processes.
- Diagnosed and resolved a memory leak in Pytest.
- Designed and implemented a BDD framework for RTOS testing, basing on
custom mock-server.
- Led the development of a comprehensive mock server.
- Integrated radio devices into the framework using serial, telnet, jbus and
emulators.
- Integrated IoT into existing framework.
- Migrated the framework to AWS.
- Implemented APN settings for RTOS.
2020-2022 Team Lead, Automation QA Team, NDA Kyiv

- Accelerated test framework development by introducing clear code style and
code review processes.
- Scaled, built and organized a team of 8, which later expanded to 25
specialists, introducing efficient onboarding and knowledge-sharing processes.
- Improved test stability by revising testing approaches and enhancing
pipelines.

2019-2020 Full-Stack Python Developer, Chimplie Kyiv
- Developed microservices and key functionality for a Slack bot, designed as a
product for corporate clients.
- Optimized operations with NoSQL databases, enhancing the product's
performance and scalability.
- Improved existing testing processes to ensure reliability and seamless
deployment.

EDUCATION
2018-2020 Master`s degree, Computer Science, Igor Sikorsky Kyiv Polytechnic Institute
2018-2020 Master's degree, Information and cyber security, State University of Telecommunications.

HOBBIES I perform as a jazz drummer, explore films as a movie buff, enjoy painting, and frequently
attend theatrical performances.