Senior backend engineer, Backend Architect.

2/2022 – 12/2022

Key Achievements: Developed innovative solutions to address the Company's critical pain points, including slow reports generation and protracted QE software validation processes.
● Designed and implemented a sophisticated SQL API solution leveraging Trino to write/run SQL queries on MongoDB, this improved analytics reports implementation and reduced reports generation latency from minutes to seconds.
● Developed an automation tool that generates a report about study configuration, this drastically reduced the QE validation time from 3 weeks to a matter of hours, enhancing efficiency and the accuracy of validation processes.
● Developed a GPT-4 LLM prompt-based solution to automate several routine QE operations, ensuring no sensitive data was passed to Chat GPT—only the general context of the problem was utilized.
● Technologies: JavaScript, Python, MongoDB, Trino, GPT-4, FastApi, Kubernetes, Git

Backend, Software engineering / -technik

7/2019 – 9/2021

Leading the implementation of the end-to-end price-surge system that increased the revenue of Free-Now (the Uber of Europe) by 3% and serving millions of users.
● Build Spark jobs to predict price-surge coefficient based on Historic/Realtime supply/demand imbalance.
● Productionize and automate price-surge calculation, by building a pipeline to serve price surge coefficient
based on time and user location request.
● Building data pipelines serving analytics purposes from historical and streaming data.
● Technologies: Python, JavaScript, Postgres, Spark, Aws, Emr, DVC, MlFlow, Git, Docker, Kubernetes, Airflow
Kafka

Software Design, Backend, Node.Js, Python, Software engineering / -technik

10/2017 – 7/2019

Key Achievements: Build and maintain Backend microservices that supported Everestate to achieve millions in sales, and get a good chunk in the German real-estate market.
● Implement messaging platform with a support of different channels (Web client, Email client, Microsoft Dynamics CRM)

● Implement and deploy Aws serverless Lambda functions to have high-availability with less administration.
● Code cleaning, refactoring and ensuring a better code coverage with unit tests for all microservices.
● Technologies: Python, Javascript, NodeJs, Aws Lambda functions, Serverless, DynamoDb, ElasticSearch,
RDS, Git, Docker, CodeBuild, CodePipeline, REST Apis

Backend, Node.Js, Software engineering / -technik, Amazon Web Services (AWS)