Denys

Denys Pryslipskyi
[открыть контакты](см. выше в блоке «контактная информация») LinkedIn Telegram

Software Engineer with 3 years of commercial experience, specializing in backend development,
with additional expertise in frontend technologies and cloud services. I design and implement
scalable web applications and microservices, bridging business requirements with reliable
technical solutions. Experienced in optimizing system performance and supporting applications
end-to-end, from development to cloud deployment.

Skills
Languages Back-end Database Tools
FastAPI SQLAlchemy
Python
• •

Flask Alembic
•

JavaScript
• •

Djago/DRF
•

•

Cloud
Databases
Front-end AWS: Lambda, EC2, API
PostgreSQL
React Gateway, CloudFront,
•

MySQL
•

TypeScript CloudWatch, WAF, S3,
•

SQLite
•

CSS/SASS CloudFormation, Textract
•

Redis
•

•

Linting
Tools OS
ruff
GitLab CI, GitHub Action, Linux
•

flake8
•

Docker, Git, CI/CD, SAM, macOS
•

black
•

OpenTelemetry, Celery,
•

LocalStack, ruff, flake8, black

Languages

— Ukrainian - Native | English - B2 | Poland - B1

Experience

Python Developer - Self-employed
August 2022 - January 2023
Collaborated within a team to develop an API for an online library using Django.
Implemented RESTful endpoints enabling users to check book availability, borrow or purchase
books via Stripe integration, and manage payments.
Developed background tasks with Celery to improve system performance and reliability.
Project:
Library API
Developed a backend system for an online library enabling book availability checks,
borrowing, and purchasing via Stripe integration. Added Telegram notifications and
implemented Celery for background processing.
Role: Python Developer
Team: 4 people
Tech stack: Django, DRF, GitHub, PostgreSQL, Docker, JWT, Swagger, Stripe, Telegram
API, Celery.
Python Developer - Nix
February 2023 - Present
Contributing to multiple client projects in both outsourcing and outstaffing environments.
Responsible for developing and maintaining web applications, APIs, and microservices across
different stages of the software lifecycle.
Utilize a broad stack of technologies and frameworks based on client requirements.
Experienced in working both in large, distributed teams and on smaller, closely collaborative
projects with direct client interaction.
Projects:
SnapShare API
Built an APIs for photo storage to the cloud with configurable access and sharing options.
Integrated Stripe for subscription management and S3 for cloud storage. Users can upload
images and generate shareable public or private links.
Role: Python Developer
Team: 3 people
Tech stack: FastAPI, Docker, ElasticSearch, Stripe, S3, Alembic, SQLAlchemy, Pydantic,
Poetry, PostgreSQL.

AI-powered dating coach
WhatsApp bot created for searching and communicating with potential partners, also
integrated with artificial intelligence that analyzes potential partners, provides advice and
recommendations during communication, and assists in the interaction between partners.
Role: Python Developer
Team: 5 people
Tech stack: FastAPI, Alembic, SQLAlchemy, Docker, Pydantic, Poetry, Pywa, Whatsapp API,
LangChain.

Fitango AI
Integrated AI into Fitango for personalized medical consultations, allowing users to interact
with AI and configure permission settings to provide certain personal medical data in order
to receive more accurate and relevant advice.
Role: Front-end Developer & Cloud Engineer
Team: 3 people
Tech stack: AWS Lambda, S3, CloudFront, WAF, Api Gateway, Bedrock, Claude, Glue, SAM,
Vite, TypeScript, Poetry, React, Cognito, CloudFormation.

RealTime
Developed a web application for a medical facility, integrating APIs with OpenTelemetry and
Datadog for monitoring. Designed a scalable database structure. Coordinated the work of
several developers within the team, conducted code reviews, and was responsible for
ensuring the efficient execution of tasks.
Role: Python Developer & Team Lead
Team: 10 people
Tech stack: FastAPI, Alembic, SQLAlchemy, Pydantic, Pipenv, OpenTelemetry, Datadog,
Docker, Ruff.