Rustem Kamun, Network Programming Developer in Vancouver, BC, Canada
Rustem Kamun

Network Programming Developer in Vancouver, BC, Canada

Member since December 12, 2015
Rustem is an experienced back-end developer with expertise in the Python and Java stacks on a diverse range of use cases. He is fluent in Java, Python, and JavaScript and has successfully applied asynchronous/concurrent programming in networking and real-time applications applying Python, Go, Java. He is a flexible and efficient individual. In his free time, he’s been digging into machine learning, AI, and domain-driven design.
Rustem is now available for hire

Portfolio

Experience

Location

Vancouver, BC, Canada

Availability

Part-time

Preferred Environment

Debian, Ubuntu, Red Hat, Jenkins/Travis-CI, Git

The most amazing...

...thing I've implemented is an M2M scalable cloud platform that collects and analyzes a stream of vehicle data, delivering them in self-sufficient services.

Employment

  • Software Engineer

    2018 - PRESENT
    Amazon
    • Developed HR automations.
    • Created serverless distributed systems on AWS.
    • Architected AWS, domain-driven design, clean code, and event sourcing.
    • Working with ambiguity, requirements gathering, and design documents.
    • Performed QA (end-to-end, isolation, unit) and CI/CD.
    Technologies: AWS, Serverless
  • Senior Python Engineer

    2016 - PRESENT
    Sirocco Systems (via Toptal)
    • Built an ETL/Workflow orchestration tool.
    • Created a concurrent session management and data extraction and transform tool which is seamlessly compatible with SQL-family databases, including Redshift, Oracle, MySQL, PostgreSQL, and MS SQL.
    Technologies: Pyramid, Celery, Postgres, Oracle, Microsoft SQL, AWS (Redshift, Boto)
  • Senior Python Developer (via Toptal)

    2016 - 2016
    Translation Exchange, Inc.
    • Built and maintained an SDK for Python. This SDK provides a small engine and tools for translating Python-based applications into any language using the TranslationExchange.com service (https://github.com/translationexchange/tml-python).
    • Built and maintained an SDK for Django. (https://github.com/translationexchange/tml-python-django).
    • Built and maintained an SDK for Flask.
    • Maintained Java SDKs: Java, J2EE, Spring, Maven.
    • Reviewed code of SDKs in other languages such as Java, PHP, and Ruby (Rails).
    Technologies: Django, Python, Flask, Ruby, Java
  • Full-stack Software Engineer

    2015 - 2016
    OkMapGo
    • Created a parser that is able to parse "epic" size XML/CSV/RegEx/JSON files.
    • Developed a continuous multidimensional filtering/searching engine on the big data stream.
    • Built continuous validations that help the user to gather statistical information about their data (in the scope of the search).
    Technologies: Django, Lxml, Beautifulsoup, Celery, React/Redux, MongoDB, RabbitMQ, Memcached
  • Team Lead, Architect, and Back-end Developer

    2014 - 2016
    Almacloud-CRM
    • Conducted back-end profiling for memory leaks, performance issues, and optimization (database aggregation and indexes, caching techniques) using Munin, Postgres internal tools, Django debug toolbar, and Python internal tools.
    • Set up automatic deployment of software distribution into different environment: Dev, QA, Prod.
    • Conducted unit/Integration/functional testing.
    • Shared knowledge and reviewed code.
    Technologies: Django, React.js, RabbitMQ, Memcached
  • Team Lead, Architect, and Full-stack Developer

    2014 - 2015
    Mobiliuz
    • Designed, developed, and maintained an M2M back end that links all your machines and other connected devices to the enteprise software or mobile applications (Async IO, Socket programming).
    • Developed and supported real-time services using SockJS such as hot notifications about car status.
    • Built a support tool to handle the client's fleet using R and Django Tastypie.
    • Built and maintained the business tier and API for third parties using Django and OAuth.
    • Maintained the system using Unix system programming (Bash + Python).
    • Served/uploaded media using Nginx.
    Technologies: Redis, Tornado, Django, R, PostgreSQL, Munin, Nginx
  • Team Lead, Full-stack Developer

    2012 - 2015
    Almacloud
    • Developed and supported a real-time secured system back and front end that can supervise communication between boards and their executive teams using Tornado, RabbitMQ, VirtualDOM, and Redux.
    • Automated provisioning and deployment. Integrated continuous deployment together with unit/integration tests using TravisCI, Docker, and Python wheels.
    • Formalized requirements and distributed them across team members.
    • Developed highly secured web applications by encrypting the transport layer, persistence layer, communication channels, and OS filesystem for militaries and commercial organizations.
    • Designed and Implemented system integration with third-party enterprise systems such as document automation, Microsoft Exchange/Outlook/Active Directory, SMS gateways, local certification authorities, and more.
    • Integrated audio/video conference equipment.
    • Visualized a cluster of nodes using XEN hypervisor.
    Technologies: Tornado, SockJS, PostgreSQL, RabbitMQ, Electron (Desktop), VirtualDom, Redux

Experience

  • Clock Syncronization Protocol (Other amazing things)
    https://github.com/Rustem/tt

    The main deliverable of my master's dissertation is a clock synchronization protocol (CSP) for general-purpose transactions at scale. In designing CSP, we employed a hybrid logical clock, HLC, that leverages the best of logical clocks and physical clocks. HLC is helpful for tracking causality relationships of the overlapping events. To maintain clock offsets among sets of nodes, we utilized Marzullo intersection algorithm. Synchronization of clocks in a network requires comparing them directly or indirectly with respect to differences in time and (possibly) frequency. The approach adopted here is based on variant of Christian's algorithm (Probabilistic clock synchronization).

  • SDK for TranslationExchange (Development)

    Built and maintained an SDK for Python. This SDK provides a small engine and tools for translating Python-based applications into any language using the TranslationExchange.com service (https://github.com/translationexchange/tml-python).

    Available for Flask/Django/Python

  • OkMapGo (via Toptal) (Development)

    Developed an advanced tool for efficient analysis of large data sets with arbitrary structure. Designed scalable data storage using MongoDB. Building core that handles MongoDB constraints and limitations. Designed, developed, and tested efficient and CPU parallelizable data filtering algorithms. MVP was based on Django, RabbitMQ, Gevent, and MongoDB.

  • Sirocco ELT Tool (Development)

    Building an ETL tool using Python Pyramid. Concurrent session management and data extraction and transform tool which is seamlessly compatible with SQL-family databases, including Redshift, Oracle, MySQL, PostgreSQL, and MS SQL.

  • Orchestrating a Background Job Workflow in Celery for Python (Publication)
    In this article, I will try to give you a good understanding of which scenarios could be covered by Celery. Not only will you see interesting examples, but will also learn how to apply Celery with real world tasks such as background mailing, report generation, logging and error reporting. I will share my own way of testing tasks beyond emulation and explain a few tricks that go beyond the official documentation and took me hours of research to discover myself.

Skills

  • Languages

    Java, Python, JavaScript, Bash, Solidity, Go
  • Frameworks

    Twisted, Django, Redux, Django REST Framework, Spring 4, Electron.js
  • Libraries/APIs

    Gevent, AMQP, React
  • Tools

    Git, AWS Push Notification Service (AWS SNS), Amazon SQS, Ansible
  • Paradigms

    Asynchronous Programming, Agile Software Development, Real-time Systems, Load Testing, Concurrent Programming
  • Storage

    MongoDB, AWS S3, AWS RDS, PostgreSQL, Redis, NoSQL, Memcached, PostGIS, Cassandra
  • Other

    Tornado, Large Scale Distributed Systems, Network Programming, Bitcoin, Raft Consensus Algorithm, Data Structures, Algorithms
  • Platforms

    AWS Lambda, Linux, Blockchain, Blockchain Platforms, Ethereum, AWS EC2, Hyperledger Fabric, Docker

Education

  • Master's degree in Computer Science in Mobile Systems
    2011 - 2015
    Lancaster University - Bailrigg, Lancaster
  • Master's degree in Information Systems
    2011 - 2013
    Kazakh-British Technical University - Kazakhstan, Almaty
  • Bachelor's degree in Computer Engineering
    2007 - 2011
    Kazakh-British Technical University - Kazakhstan, Almaty

Certifications

  • AWS Certified Solutions Architect - Associate
    DECEMBER 2018 - DECEMBER 2020
    Aws Certified Solutions Architect Associate Online Classroom Training
  • IELTS 7.0
    JUNE 2018 - JUNE 2020
    IDP IELTS Australia
  • Machine Learning by Andrew NG
    JUNE 2018 - PRESENT
    Coursera
  • Toptal Blockchain Academy
    APRIL 2018 - PRESENT
    Toptal, LLC
  • Machine Learning: Math and Python
    MARCH 2017 - PRESENT
    Yandex Data Factory/MIPT
  • Cloud Computing Concepts
    MARCH 2015 - PRESENT
    University of Illinois Urbana-Champaign | via Coursera
  • MongoDB for Developers
    DECEMBER 2012 - PRESENT
    MongoDB

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