Mahender T.

• Well I have been working since past 3 years. From creating web scraping services to never ending cron like scripts using Python, to creating monitoring systems, Alert systems and various admin interfaces using Django Framework . • Good experience in developing web applications implementing Model View Control architecture using Django • Experienced in working with server side technologies including databases, restful API and MVC design patterns and developing independent microservices. • Working with Python ORM Libraries including Django ORM, SQLAlchemy. • Experience in using web scraping then cleaning and extracting relevant information for further processing of data. • Experience in designing & implementing various independent systems from scratch using various technologies like python, redis, rabbitmq, restful apis etc. • Automate various repetitive processes using python. • Experience in using graph libraries like Highcharts to add interactive charts to web applications. • Used Celery as task queue and RabbitMQ, Redis as messaging broker to execute asynchronous tasks. • Designed flow patterns & developed various scheduled python services using combination of various db with cached db like redis using cron. • Implemented unit testing using python Unit Test Framework. • Implemented chained events and scheduled events using celery. Also using celery asynchronous behaviour for off loading heavy tasks being performed in normal request cycle. • Reimplemented production db saving services which were using multiprocessing and were using a lot of resources. After reimplementing with a new design pattern using multi-threading brought down resource usage by almost 50 %. • Experienced in loading large data sets in memory, effective and efficient joins and indexes for processing of data sets using libraries like Pandas. • Migrated various existing services from other languages like php to Python • Built a module for daily csv reporting of various tasks performed by various different backend micro services by compiling all related data in a single storage. • Identified issues in existing software design and reimplemented architecture with Publisher and Subscriber worker resulting in much optimized performance. • Module for scheduled daily mail alerts using Django (post_office library) for sending mails with attached information regarding their accounts project. Used django signals for marking users to whom daily mail is sent. • Developed an entire module from scratch for monitoring of proxies health being used in a system also categorized proxies by labeling them different status like working, bad or not usable and created an interface for monitoring part using Django. • Migrated Python2.7 code to Python3.6 and maintained almost 90 percent of test coverage.