I speak

English : Advanced

French : Average

Romanian : Native speaker

I code

Networks and systems
Linux, Windows, Ansible, Docker, Hyper-V, KVM, Virtual Box, Vmware ESXi
Languages
Python, JavaScript, PHP, SQL, C#, C/C++, ActionScript, Bash scripting, Haskell, Visual Basic
Technologies
boto, SQLAlchemy
Web technologies
Django, Flask, Twisted, AngularJS, Bootstrap, CSS, HTML, jQuery, AJAX, AWS, Flask, Flex, JSON, REST, Web API, XML - RPC
DBMS
SQLite, PostgreSQL, MySQL
Analysis methods and tools
Crucible
Environment of Development
PyCharm, Eclipse, GIT, Mercurial
Application servers
Apache, Memcached, Nginx, RabbitMQ
Protocols
OAuth
Open Source solutions
Celery
Software testing
Unit testing
Miscellaneous
Agile, Scrum, Confluence, Jenkins, Jenkins, JIRA, Machine Learning, Multithreading, Redmine
Graphic
Photoshop
Multimedia
Flash
Computer tools
MS Office (Word, Excel, PowerPoint, Outlook)

My Experiences

E - Learning Solutions Provider August 2018 - November 2018 Duration: 3 months

E - Learning Solutions Provider August 2018 - November 2018 Duration: 3 months

Back-end Python Developer.

  • Developing a new DataLake – Analytics component for the application that’s responsible for storing log events / historical data and has the ability to perform logical operations, establish common points and matches on the data in order to allow advanced statistics to be done and to offer proof for certain actions.
  • Decoupling logging and the log processing system from the main application.
  • Storing raw data and creating processing mechanisms so that the processed data can always be recreated in case of eventual loss.
  • Processing logs in order to identify new or existing clients using the application and coming from different marketing campaigns.
  • Developing new functionalities designed to assign identities to each user of the websites / application in order to monitor their actions and create suggestions based on them.
  • Working on the possibility to integrate machine learning techniques for predictions and data analysis in the future.
  • Developing a custom Cookie Repository, similar to Marketo’s.

Media Content Provider February 2017 - August 2018 Duration: 1 year 6 months

Media Content Provider February 2017 - August 2018 Duration: 1 year 6 months

Full-Stack Lead Developer.
In charge of the fulfillment of two main tasks.
I. The redesign and improvement of the old syndicate website using Python / Django on the back-end and jQuery and Bootstrap on the front-end.

  • Redesigning the back-end application using the Django Admin customization to match client requests.
  • Redesigning the application’s front-end and setting it up using Webpack.
  • Integration with external frameworks / services (Salesforce CRM / Navision).
  • Implementing permission-based access to the content API.
  • Performing detailed activity monitoring using Google Analytics.
  • Integration of single sign-on (SSO) using Microsoft Azure and the SAML protocol.
  • Creating a proxy system to mask and hide the requests towards the external Content API Provider.
  • Designing encryption / decryption algorithms to secure the content identification details of the Content API Provider.

II. Setup of the local development environment using Docker containers for different components of the application.

  • Working with various tools and technologies such as: Nginx, uWSGI webserver, PostgreSQL, RabbitMQ, Celery (async tasks), Memcached.

Like a Bird October 2015 - January 2017 Duration: 1 year 3 months

Like a Bird October 2015 - January 2017 Duration: 1 year 3 months

Back-end Developer.

  • Redesigning the architecture of the application, while extending the existing functionality and providing new functionalities at the same time. The initial design of the application was using Twitter REST API, polling in order to process the requests and reply to users (migrating to Streaming API, taking advantage of the Python multiprocessing capability such as: separate process / thread for each stream connection).
  • Integration of an asynchronous Task processor (Celery and Rabbit MQ), thus the application architecture had to be redesigned to handle requests in real time using workers (celery), and to queue the tasks (Rabbit MQ).
  • Implementation of a custom ORM / Model, based on SQL Alchemy Core (Query Language) in order to fit the project’s needs.
  • Development of a system using Machine Learning to track down the players that matched some cheating patterns. The implementation used specifically the Random Forest classification algorithm, to build a model/pattern based on a rich training set.
  • Implementing API Connection Pool, keeping few spare connections and their rate limits internally, and
    switching between them, in order to avoid getting rate limited.
  • Working with Amazon Web Services (AWS) – S3, EC2, RDS, Route53 and others; using the Amazon API library for Python in order to automate deployments (boto).
  • Writing unit / functional tests, documentation / guidelines.
  • Integration of team members / newcomers.
  • Communicating / meeting the client periodically, to better understand the business needs.

Software Publisher May 2015 - October 2015 Duration: 5 months

Software Publisher May 2015 - October 2015 Duration: 5 months

Software Developer.

  • Development of a Communication / File Sharing Client built on a Peer To Peer Network Protocol (Kademlia Protocol). The application uses an asynchronous Python framework (Twisted) to establish connections between peers and exposes its main functionalities on the web (through Flask micro Framework).
  • Writing server-side web application logic and development of back-end components.
  • Design and implementation of high-availability and performant features.
  • Integration of front-end components to ensure a user-friendly experience.
  • Working on RESTful API with OAuth 2 (on the Server Side), that exposes the main functionality of the application.
  • Testing the developed code and fixing encountered issues so as to ensure that the application complies with required quality standards.
  • Setting the base of an Automated Testing Setup.
  • Working on unit tests, using coverage and Code Quality checkers (PEP 8 and Inspections).

ISSCO Romania August 2011 - May 2015 Duration: 3 years 9 months

ISSCO Romania August 2011 - May 2015 Duration: 3 years 9 months

Software Developer within a company delivering complete IT&C solutions for the Romanian, East-European and West-European markets.

  • Development of Cloud Storage Software Solutions for Cloudfounders (design, deployment, maintenance services and infrastructure to meet constantly evolving needs).
  • Back-end development and maintenance of Cloud APIs using Python, SQL (PostgreSQL), Bash and other utilities for managing and monitoring the Linux system.
  • Building compatible User Interfaces (Cloud Management Console), responsible for the management of the entire framework, using ActionScript3 (Flex/Flash) and REST, XMLRPC.
  • Improvement and maintenance of advanced database driven Monitoring Portal, using Python, SQL (PostgreSQL), HTML / CSS, jQuery and other libraries.
  • Development of abstraction libraries for facilitating the communication between client and the Virtualization Host (VMware ESXi / KVM / HyperV).
  • Development of web services using REST and XMLRPC.
  • Working with Django, Durandal and Memchached.
  • Development of new functionalities, both back-end and front-end.
  • Investigating and fixing application bugs.
  • Collaboration in an Agile environment organized according to the Scrum process.
  • Understanding of the full development cycle Agile development methodologies and supporting tools like JIRA, Confluence.
  • Performing code reviews with Crucible.
  • Documenting features, technical specifications and infrastructure requirements.

La Maison Bucuresti April 2009 - May 2011 Duration: 2 years 1 month

La Maison Bucuresti April 2009 - May 2011 Duration: 2 years 1 month

System Administrator for a small office specialized in interior design.

  • Network Administration, PC Maintenance.
  • Maintenance of the office’s local network infrastructure, administrating a few websites owned by the company, installing different software applications and solving daily issues.
  • Administration of Linux systems.
  • Design and development of company websites (LaMaison.ro, JoinUsForDinner.eu, MartineClaessens.com).

Freelance July 2007 - May 2010 Duration: 2 years 10 months

Freelance July 2007 - May 2010 Duration: 2 years 10 months

Web Developer within multiple projects dedicated to companies or individuals (interior designers, photographers etc).

  • Designing/building websites and creating web applications.
  • Implementation of CMS systems, eCommerce and blogging platforms such as WordPress.
  • Design and development of animations and graphical elements integrated in the projects using Adobe Flash, Photoshop.

My Education

Bachelor's Degree in Computer Science, Faculty of Sciences - University of Bacau.

2008-2011


Trainings

Agile Training.

2015


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