Олександр

CONTACT INFO Oleksandr Yanchar
SOFTWARE DEVELOPER
[open contact info](look above in the "contact info" section)

@youngznig
WORK EXPERIENCE
[open contact info](look above in the "contact info" section) Dashdevs Aug 2024 - Present

CRM System:
This project was based on a serverless architecture, leveraging AWS Lambda and API
Gateway. System was used for handling various managing process like calculating
emplyees compensations, performances reviews, managing documents circulation etc.
SKILLS
Tech stack: Python, Alembic, SQLAlchemy, GoogleAPI, JiraAPI

Python FastAPI
Insurance Startup:
This project involved developing a web application using DRF and hosting it on an AWS
Django/DRF Redis
EC2 instance. During this time, we facilitated the transition from a B2C to a B2B model
GraphQL AWS and created a second service for the automatic detection of natural disasters.

Flask SQLAlchemy Tech stack: Python, DRF, PostgreSQL, Redis, Stripe, Celery, MongoDB, Docker, docker-
compose
GIT Celery

Docker SQL(Postgres/MySQL) NDA Nov 2023 - Aug 2024
MongoDB Nginx
Automates creation, digital signing (via a third-party signing API), storage, and
GitHub Actions Linux expiration-alerting of documents for internal and external parties using a microservices
architecture: a Django REST API service, a dedicated signing service, and a notification
TypeScript RabbitMQ
service communicating via RabbitMQ, with JWT authentication, Celery + Redis for
async tasks, AWS S3 for file storage, AWS SES for emailing, and full CI/CD via GitHub
AioHTTP Elasticsearch
Actions.
HTML/CSS React Tech stack: Django REST Framework, PostgreSQL, JWT, Celery, Redis, RabbitMQ,
AWS S3, AWS SES, Docker / Docker Compose, GitHub Actions

LANGUAGES Solidway Oct 2022 - Novl 2023

Food recommendation app
Ukrainian (Native)
Built a RESTful API backend for a meal-planning mobile app using Django REST Framework,
English (B2) PostgreSQL, JWT/OAuth authentication, integrated an external LLM for meal-plan
optimization, managed subscriptions via Stripe, used Celery + Redis for async tasks,
containerized with Docker/docker-compose, deployed to AWS EC2, and set up CI/CD with
GitHub Actions.

Tech stack: Python, DRF, PostgreSQL, Celery, Redis, Requests, Docker, docker-
EDUCATION compose, Stripe, GithubActions

Auto Parser Service
Cybersecurity Built an auto parser service in Python using aiohttp with multiprocessing to fetch and parse
data, storing results in PostgreSQL (via SQLAlchemy) and Elasticsearch, exposing them
National University “Lviv Polytechnic” through FastAPI, coordinating tasks with RabbitMQ, and deploying via Docker/docker-
2022 - 2026 compose on a VPS.

Tech stack: Python, FastAPI, PostgreSQL, SQLAlvhemy, ElasticSearch, Aiohttp, Docker,
docker-compose, MultiProcessing, RabbitMQ