Batelle is a modern solution to an age-old problem: getting children to sleep. It is a sleep training program that is based on principles of early childhood development and behavioral change.- Reduced our sleep guides' workload by 40% by setting up a custom GPT-4 bot that automatically responds to customers.- Simplified cloud management and orchestration by migrating core parts of our infrastructure to Terraform.- Expanded our data analytics capabilities by setting up ETL from Firestore to BigQuery to use more powerful and expressive queries.- Accelerated continuous integration (CI) fourfold by parallelizing unit and integration tests written in Jest.- Developed new Nuxt.js features for the support dashboard, aiding sleep guides in handling an increased customer base.- Investigated sleep guides' bug reports thoroughly, typically resolving issues within four hours.- Advocated for the implementation of structured logging in Datadog to enable early detection of bugs.Standardized a unified set of Tailwind UI components, ensuring style consistency and accelerating new component development.

Pointz is an app that generates bike-friendly routes for users based on cyclist feedback.- Mentored a junior team on the required changes to ensure correctness and improve the security and scalability of their app.- Wrote a Python script to evaluate road safety from OpenStreetMap attributes and integrated cyclist feedback into the C++ Valhalla routing engine, delivering the core feature of bike-friendly route suggestions.- Enhanced the PostgreSQL database and used PostGIS geospatial extensions to better align with application requirements and industry standards.- Consolidated two separate databases into one using AWS Database Migration Service (DMS), streamlining data access and querying without any downtime.

Suly is a streaming platform where users can subscribe to their favorite content creators.- Accelerated integration tests by 22 times by replaying recorded requests and inbound webhooks.- Tripled unit test speed by parallelizing and isolating data at the process, database, and Redis levels.- Automated the deployment of Node.js, GraphQL, and PostgreSQL stack to Heroku using GitHub Actions.- Integrated APIs Stripe, Mux, and Sentry to handle payments, video upload, transcoding, and bug tracking.- Enforced code style, linting rules, and passing tests using Git hooks and GitHub Actions.- Built job queue using BullMQ to offload heavy CPU/IO-bound processing.- Implemented video posts feature with view count, like count, nested comments, and promoted content.- Auto-generated GraphQL queries from schemas in tests to reduce code duplication and tedious boilerplate.- Protected webhook processing from identity fraud and replay attacks and ensured the idempotency of duplicate and out-of-order events.

Getir is a startup that offers an on‐demand ultrafast grocery and food delivery service.- Developed a machine learning model based on LightGBM to provide a more accurate estimated time of arrival (ETA) of market orders.- Wrote complex SQL queries to fetch all necessary columns across multiple tables in the Amazon Redshift database.- Reduced the preprocessing duration from two hours down to 20 minutes by using proper data structures, vectorization, and parallelism.- Enhanced model accuracy threefold through detailed exploratory data analysis and iteratively refined feature engineering.

Tavan provides weather-based individualized clothing recommendations for runners and cyclists.- Designed complex data tables with filtering, sorting, and chart components capable of querying any date range with zoom and pan features.- Built an immersive map interface for visualizing thousands of routes with advanced filtering and lazy querying capabilities.- Integrated it with 3rd-party APIs to download and process user data.- Developed a geo-editor app that displays OpenStreetMap node data on a map with heatmaps, 3D hex grids, and scatterplots, utilizing the deck.gl library.- Created a custom, fine-grained access control system for administrative users.

Training to prepare students for competitive programming. Participated in Summer 2018 Camp as a Foundation student, later in Winter 2019 as Advanced student, and the 30-week training program as Advanced student. Topics covered: https://tinyurl.com/y4esxcbs

- Improved the admin dashboard to easily manage app content and added internationalization.- Made forms more user-friendly with strict validation and autocomplete features.- Built a messaging system between customers and shop owners, using WebSockets.

Taught an 8-week introductory course for Java to an audience of around 60 students. I introduced them to topics such as variables, conditions and loops, recursion, object-oriented principles. The code of each week can be found under github.com/Compec. Main projects are simple games, calculator in terminal, Tower of Hanoi solver, and an introduction to graphics with 2D tiled game called Sokoban.

• Hosted debate sessions every Thursday

Beyond Limits 2.0, in collaboration with Joussourna and American Corner, is AIESEC Hadrument's second edition of the successful cultural and professional project Beyond Limits 1.0 . It's main goal is to help students choose their educational and professional career through a series of leadership workshops that serve to sharpen their soft skills, skills that are most needed in this competitive world.

Got a U.S. Government-funded scholarship to spend an academic year in an American High School as an exchange student. Gone to two different schools in two different states: Seaman High School in the fall in Topeka, Kansas and Marcus Whitman High School in the spring in Rushville, New York. Beautiful experience. Enriching and eye-opening.