Денис

Denis Komandyr SUMMARY

Collaborative and adaptive Python Developer with 1.5+ years
of experience. Proficient in Django, FastAPI, and DevOps tools.
Skilled in automation, legacy code maintenance, and
Agile/Scrum environments. Strong communicator and quick
learner, passionate about solving complex problems and
contributing to innovative solutions.

[open contact info](look above in the "contact info" section) EXPERIENCE
[open contact info](look above in the "contact info" section) CloudLinux
Ukraine, Kyiv / remote Python Developer
03/2024 – 12/2024
LinkedIn
CloudLinux is a leading American company founded in 2011,
GitHub specializing in Linux-based solutions for hosting providers.
Worked on a wide range of tasks, including optimizing system
Telegram
features, work a lot with DevOps, database and socket
connections, adding automated tests. Additionally, streamlined
processes by creating Debian package builds.
SKILLS Key Challenges:
Navigated a modular codebase with over 10 years of legacy
•

Programming laguages code, requiring deep understanding of complex references
Python 3.6+ (following all best principles), and practices.
JavaScript (basics), HTML, CSS Adapted to frequent context switching as tasks spanned
•

different parts of the project, each with its own legacy code
Web Frameworks and unique challenges.
Django, Django REST Framework (DRF), Flask Addressed inconsistencies in coding styles and unpredictable
•

(basics), FastAPI, Tornado changes, requiring close collaboration with senior developers
to ensure proper implementation.
Achievements:
Databases
Resolved a critical database instability issue affecting
SQLite, PostgreSQL, Redis, MongoDB
•

10,000+ daily users, significantly improving system
reliability.
DevOps
Automated the testing of new features by creating optimized
Docker, Render.com , Jenkins, QA, Ansible
•

VM images and Jenkins pipelines, reducing manual effort and
increasing testing efficiency using DevOps with QA scripts.
System control version Introduced a linting system to enforce code quality
Git, GitHub, Gerrit
•

standards, reducing errors and improving maintainability
across the codebase.
Networking & Security Developed comprehensive onboarding documentation from
•

HTTP, JWT, SSL/TLS scratch, actively used about a year, significantly improving
the quality and efficiency of new employee integration.
Concurrency
Technology stack: Python, Jenkins, Linux, Virtual Machines
Multiprocessing, Multithreading, Asyncio,
(VMs), cPanel, Plesk, Sentry, Ruff, QA Development, DevOps,
Celery
Socket, Ansible

Artificial Intelligence
OpenAI API, TensorFlow, Keras, PyTorch
EDUCATION

Linux system administration Bachelor's degree of Cybersecurity | Mate Academy
Debian packaging, custom package creation, National Aviation University | Online course
and installation • In University studied and implemented advanced
cryptographic algorithms, including Feistel Network, Vigenère
Languages Cipher, and hashing techniques on Python.
English - B2 (Upper-Intermediate), Ukrainian - • In Mate Academy completed a full-time, intensive course
Native, Russian - Native covering everything from Python fundamentals to advanced
web development. Gained 500+ hours of hands-on coding
practice.