Artem Mezhenin
Verified Expert in Engineering
Software Developer
Artem is a high-energy software engineer. He has outstanding coding skills and a mathematical background. Artem particularly excels in Python development, database design, message queues, and Linux administration.
Portfolio
Experience
Availability
Preferred Environment
Git, IntelliJ IDEA, Linux
The most amazing...
...code I've written uses a C library for MongoDB to load data directly to NumPy arrays, skipping slow Python dictionaries.
Work Experience
Back-end Developer
Caterpillar, Inc.
- Implemented REST API for database with information about parts and vehicles produced by Caterpillar.
- Deployed project to Azure Cloud. Provided help with data migration.
- Integrated JWT authentication in Django with existing solution.
Senior Developer
Bayer CropScience
- Worked closely with the bioinformatics team at Bayer to developed a web portal for their genomic data.
- Implemented a single-page application using AngularJS and various D3.js libraries for genomic data.
- Developed the back end with Python/Django so that it can handle their database with terabytes of data as well as interact with existing computational clusters and other Bayer projects.
- Designed long-running aggregations, optimized complex queries, and developed multiple tools to explore data in DBs and locate errors and inconsistencies.
- Maintained high test coverage of back-end code (above 95%).
- Configured and maintained instances of the project (Linux).
Senior Developer
TelepathData, Inc.
- Wrote modules for an email analysis system in Scala and Play.
- Refactored monolithic Scala components into a more modular structure.
- Developed new front-end modules with AngularJS and simplified existing code with Restangular, Lodash, and other libraries.
- Wrote functional tests with Selenium and Scala to test functionality from a user perspective.
- Used Mocha and Chai for testing AngularJS modules.
- Added Google Analytics to track basic information about user behavior.
Back-end Developer
WiserTogether, Inc. (via Toptal)
- Developed a healthcare knowledge base in Python/Django and MongoDB.
- Provided a REST API for this database with complex graph traversal scenarios.
- Wrote an automated migration tool (similar to South) for model updates in MongoDB.
- Created automation scripts for OpenShift instance management.
- Covered 100% of the code with tests.
Senior Developer
Metabar
- Designed a system for Internet statistics collection.
- Replaced an existing MongoDB sharding cluster (three shards) with a single replica set after deep optimization and refactoring.
- Developed a high-load back end with Python/Celery and RabbitMQ that serves 25+ million tasks per day.
- Created a custom OLTP/OLAP solution with MongoDB that serves 12+ million users per day.
- Provided support and disaster investigation for production servers.
- Automated deployments with Fabric.
- Wrote asynchronous code with Gevent for building our own service on top of Yandex.Market API.
Senior Developer
Tehnodar
- Created a vehicle tracking web application in Python/Django.
- Developed a high-load database (MongoDB, 10+ million new geospatial data points per day).
- Designed scalable and failover architecture for the system.
- Made a significant performance boost by applying NumPy (package for scientific computing) for data analysis.
- Installed and maintained servers for project needs.
Developer
Petrozavodsk State University
- Created a multi-blog client application for the Maemo/MeeGo platform.
Experience
BoatWatch
Metabar
TheSeventhSense
http://www.theseventhsense.com/Skills
Languages
Python, HTML, Scala, JavaScript, Sass, CSS, Java, C, Go, Solidity
Frameworks
AngularJS, Django, Bootstrap, Django REST Framework, Express.js, Play, Akka, Selenium
Tools
Celery, Git, IPython, RabbitMQ, Mercurial, IntelliJ IDEA
Paradigms
Test-driven Development (TDD), Concurrent Programming, Asynchronous Programming, Distributed Computing, Agile Software Development, Parallel Computing
Platforms
Linux, Amazon Web Services (AWS), Azure, NVIDIA CUDA
Storage
PostgreSQL, MongoDB, Memcached, Redis, Elasticsearch, MySQL, Neo4j
Libraries/APIs
Node.js, Fabric, jQuery, Gevent, Pandas, NumPy, ØMQ, React, D3.js
Industry Expertise
Bioinformatics
Other
Messaging Patterns, Machine Learning, Tornado
Education
Master Degree in Information Systems
Petrozavodsk State University - Russian Federation, Petrozavodsk
Bachelor Degree in Applied Mathematics
Petrozavodsk State University - Russian Federation, Petrozavodsk
Certifications
Bioinformatic Methods I
University of Toronto | via Coursera
Introduction to Bioinformatics
Saint Petersburg State University | via Coursera
Introduction to Parallel Programming (CUDA)
NVIDIA Corp. | via Udacity
Machine Learning
Stanford University | via Coursera
M102: MongoDB for DBAs
10gen, The MongoDB Company
M101: MongoDB for Developers
10gen, The MongoDB Company
CS188.1x: Artificial Intelligence
University of California, Berkeley | via edX