Stas D. — Python Full-Stack Software Engineer

Experience

Back-end Developer

May 2022 - January 2023

Description: Tour operator

Responsibilities:

• Working on one of the services
• Serverless architecture
• Integration with other services
• Deploy with terraform
• a lot of performance improvements 

Technologies:FastAPI, AWS Lamba, ApiGateway, Kubernetes, Stepfunctions, DynamoDB, S3, Athena, Glue, SNS, SQS, IAM, KMS, Batch, Terraform, docker, docker-compose

Back-end Developer

Dec 2021 - May 2022 

Description: Application for pushing ads into different adservers

Responsibilities: 

• Working on a couple of the services to push ads to external services
• Serverless architecture
• Integration with other services
• Integration with a lot of 3rd-party integrations (google ads, campaign manager, adform, sizmek, etc)
• Some services were written from scratch

Technologies:Django, DFR, Celery, Redis, Postgres, Kafka, S3, FastApi, SqlAlchemy, dependency-injector, aio libs (aiokafka, aioredis, asyncpg), alembic, poetry, httpx, boto3, typer, traefic, docker, docker-compose

Senior Python developer/Mentoring juniors

Feb 2021 - Dec 2021 

Description: Maintaining a big monolith Django application that serves multiple client applications

Responsibilities:

• Developing REST API used by both web and mobile applications and internal administrative apps as well
• Integration with third-party services (email, sms, payment, and services related to business domain)
• Delivering new products as a result of arisen business needs
• Extensive customization of Django admin and also adding whole new modules written in React JS in frontend and communicating with REST API
• Implementing a new service for exporting large quantities of data from the database
• Implementing a notification service that delivers sms&email campaign messages and also push notification
• supervising juniors

Technologies: Django, Postgres, Celery, Sentry, Redis, S3, Google cloud services, docker, docker-compose, Bitbucket pipelines, React.js, JavaScript

Back-end Developer

Dec 2020 - Feb 2021

Description:Business consultation platform

Responsibilities: 

• Working on Mail & Payment services
• Serverless architecture
• Integration with other services
• Integration with payment gateways (Twise, Trolley, Payoneer), also mail integration (Sendgrid)
• Django-admin customization

Technologies: Django, DRF, Celery, Redis, Postgres, SMTP, faust, S3, docker, docker-compose, Kubernetes

Back-end Developer

Sep 2020 – Dec 2020

Description: API for a google chrome extension to parse some data

Responsibilities: 

• Working on Mail & Payment services
• A lot of 3rd-party integrations (Linkedin, Twitter, RapidAPI, Facebook, google-search, google-translator, mail-phone validator service, etc)
• Parsing some data
• Performance improvements

Technologies:Flask, Sqlachemy, Redis, s3, rds, ec2, sns, Postgres, pandas, beautifulsoup, SendGrid, docker, docker-compose

Full Stack Developer  

Mar 2020 – Sep 2020 

Description: The project is related to providing the ability users to buy or sell electricity according to their role (either buyer or seller). The information about electricity consumption and production is automatically gathered from the US state API via celery one time per month. Possible (due to geographical and consumption/production data) offers are viewed by users in order to be applied or denied.

Responsibilities: 

• Building Architecture
• bug fixing
• implementation of new functionality
• Create clean, efficient code based on requirements

Technologies: Python, Django, DRF, React.js, Celery, Redis, PostgreSQL, AWS EC2, AWS S3

Back-end Developer

Dec 2019 – Mar 2020

Description: Application for Postal Company

Responsibilities: 

• API for that application
• Service from scratch
• integration with other services and AWS services
• DB design
• Stage deploying, simple ci\cd

Technologies:Django, DRF, Celery, Lambda, EC2, ApiGateway, S3, RDS, docker, docker-compose

Back-end Developer

May 2019 - Dec 2019 

Description: Application to push products to multiple marketplaces

Responsibilities: 

• Creation & Integration of API
• Service from scratch
• integration with Walmart & Shopify

Technologies:Sanic, SqlAlchemy, Postgres, MongoDB, RDS, Lambda, S3, API gateway, Kafka, Celery

Back-end Developer

Feb 2018 - May 2019

Description: An application that makes easier communication between services and Tableau

Responsibilities: 

• Communication between AWS services
• preparing CSV with all currencies and their exchange rates
• cron job for retrieving actual rates

Technologies: Python, CSV, Tableau, Lambda, API Gateway, S3, IAM, Glue, Athena, EventBridge

Back-end Developer

Mar 2017 – Feb 2018

Description: Stocks site parser by the USA region

Responsibilities: 

• parsing sites
• work with the browser via selenium

Technologies: Flask, beautifulsoup, asyncio, aiohttp, selenium