Publication
Django, Flask, and Redis Tutorial: Web Application Session Management Between Python Frameworks
https://www.toptal.com/django/django-flask-and-redis-sharing-user-sessions-between-frameworks
Denis is available for hire
Hire DenisDenis Kyorov
Verified Expert in Engineering
Software Developer
Location
London, United Kingdom
Toptal Member Since
February 4, 2014
Denis is an experienced Python/Go developer (7+ years) who has contributed to a wide range of challenging projects involving distributed systems, back-end RESTful programming, microservice architectures, data pipelines design, and event-driven architectures. He's generally involved in everything back-end related.
Portfolio
Datapipe Europe, Ltd.
Amazon Web Services (AWS), Docker, Python, Terraform, Kubernetes, Go
Gluru, Ltd. (United Kingdom)
Microservices, Kubernetes, Redis, Amazon Kinesis, CQRS, Event Sourcing...
DigitalFirstVentures (via Toptal)
Linux, Ansible, Celery, Redis, Elasticsearch, Django, Scrapy, Python
Experience
Availability
Part-time
Preferred Environment
Vim Text Editor, PyCharm, MacOS
The most amazing...
...project I've been involved in is "func," a remote management tool for server automation which I worked on during my participation in Google Summer of Code.
Work Experience
Platform Engineer
2017 - 2018
Datapipe Europe, Ltd.
- Designed/maintained/implemented easy-to-use APIs (managing k8s clusters, databases, network file systems) for the rest of the teams based on GRPC and REST.
- Designed and created APIs to run Terraform modules which were responsible for all of the infrastructure management that other teams were relying on.
- Designed and implemented CI/CD pipelines (unit, integration, smoke) for infrastructure APIs, so full testing can be done before other teams use them.
- Designed and implemented event-driven architecture which was powering the infrastructure APIs which helped having a more reactive and loosely coupled system.
- Worked on a tool which helped other teams install their helm charts as part of their CI/CD pipeline.
Technologies: Amazon Web Services (AWS), Docker, Python, Terraform, Kubernetes, Go
Python/Go Core Back-end Engineer
2014 - 2017
Gluru, Ltd. (United Kingdom)
- Created event-driven architecture with DDD principles and event sourcing in place.
- Helped build a distributed data pipeline With RabbitMQ, Kinesis, and microservices.
- Helped the company to switch to microservice architecture from monolithic in a gradual way and still supporting the production environment.
- Helped implement the data collectors which were at the core of the business and were supplying the data for the distributed pipeline.
Technologies: Microservices, Kubernetes, Redis, Amazon Kinesis, CQRS, Event Sourcing, Domain-driven Design (DDD), Elasticsearch, RabbitMQ, Cassandra, Go, Python
Full-Stack Django Developer
2014 - 2014
DigitalFirstVentures (via Toptal)
- Created an auto scraping system with ScraPy that was collecting data from various sites periodically.
- Created various background tasks that were responsible for heavy tasks with Celery.
- Created a Django REST API for representing the collected data on ElasticSearch.
- Wrote a component that was responsible for collecting and caching geo data for various addresses.
- Created simple to use deployment scripts with Ansible.
Technologies: Linux, Ansible, Celery, Redis, Elasticsearch, Django, Scrapy, Python
Back-End Python Web Developer
2013 - 2013
MobSafety
- Worked on platform back-end, which primarily consisted of REST services, for Learnpal, a mobile learning platform for students. Its main purpose is to help schools manage, secure, and utilize mobile devices effectively in the classroom.
- Created a content publishing service for students in which teachers could suggest content from different sources. Involved retrieving data from iTunes, Google Play, and other sources in order to publish them in a unified data format for front-end development.
- Contributed to a service that prevented students from visiting inappropriate sites.
- Worked as the Python team lead in the final stages of the project.
Technologies: REST, Celery, MongoDB, Flask, Python
Back-end Python Web Developer
2012 - 2013
Blue Chocolate, Inc.
- Developed and maintained back-end REST API for the application front-end for Getsendtask, a web app for sending tasks between users. The idea was to integrate email clients with task lists so as to simplify the sharing and sending of tasks.
- Created several modules for batch processing with Celery.
- Developed an integration module which allowed users to send tasks to their Google contacts.
- Deployed and released the product back-end.
Back-End Python Developer
2011 - 2012
Shooju
- Created parsers to gather data from a variety of sources and formats (XLS, CSV, remote APIs), as well as convert said data into pre-defined, easy to process formats, for Shooju, a platform for data retrieval.
- Created a multi-processing worker framework for managing data retrieval which scaled according to a client's needs.
- Developed a modified version of the IPython notebook application which allowed users to create data parsers easily within their web browser.
- Worked on a Flask REST API (backed by CouchDB) to manage worker processes which were collecting data from different sources.
Technologies: Tornado, IPython, CouchDB, Flask, ZeroMQ, Python
Embedded Linux Developr, Java Back-end Developer
2010 - 2011
Skynet A.Ş
- Developed C modules (mainly extensions of the Net-SNMP protocol) for an embedded switch project which was running on Linux OS.
- Worked on an embedded ARM project in which I developed a module that allowed a board to update itself when a newer firmware version was available.
- Worked as a Java developer in a remote data reading project which involved reading and organizing data from remote metering devices.
- Created a multi-threaded data processing framework in Java that was able to read many remote metering devices simultaneously.
- Created parser modules for remote metering devices and store the output data in a unified format.
Technologies: Linux, Spring, Java, POSIX, C
Back-End Java Developer
2009 - 2010
Netmera A.Ş
- The company's main product was a social networking web app which was based on Google's OpenSocial framework (now known as Apache Shindig).
- Worked with the Spring MVC framework to handle front-end requests.
- Deployed and managed the company's Linux servers.
- Worked on the Shindig source code to extend their gadget templating engine.
- Created OpenSocial-compatible gadgets.
Technologies: OpenSocial, JavaScript, Linux, MySQL, Spring, Java
Experience
Event Sourcing Kit (Eskit)
https://github.com/makkalot/eskitEskit is a collection of microservices built on top of Event Sourcing Idea. It can be useful for people who want to try out event sourcing.
Enlivepy – Python HTML Transformation Librarry
https://github.com/makkalot/enlivepyThis is a Python port of Clojure's Enlive library for HTML transformation that I've released recently.
Open-source Projects
https://github.com/makkalotIn my spare time, I love working on open-source projects.
Skills
Languages
Go, Python, JavaScript, Java, SQL, C
Frameworks
gRPC, Flask, Django, Spring, Apache Thrift, Scrapy, Pyramid
Libraries/APIs
Redis Queue, Gevent, ZeroMQ, POSIX
Paradigms
Event Sourcing, CQRS, Test-driven Development (TDD), Functional Programming, Agile Software Development, Concurrent Programming, REST, Microservices
Other
OpenSocial, Kubernetes Operations (kOps), Domain-driven Design (DDD), Apache Cassandra, Amazon Kinesis, Tornado
Tools
RabbitMQ, Terraform, Celery, Ansible, Vagrant, Git, Virtualenv, PyCharm, IPython, Vim Text Editor, Amazon Simple Queue Service (SQS)
Platforms
Amazon Web Services (AWS), Linux, MacOS, Kubernetes, Docker
Storage
NoSQL, MongoDB, Redis, Elasticsearch, PostgreSQL, MySQL, CouchDB, Cassandra
Education
2003 - 2008
Bachelor's Degree in Computer Science
Yildiz Technical University - Istanbul, Turkey
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