Osman Ozdemir

+1(917)-916-3658 | oozdemir2704@gmail.com | Github | LinkedIn

Profile

Senior Frontend/Full Stack Engineer with 5+ years of experience and a solid computer science background. I enjoy building fast, reliable and scalable web applications that are built with bleeding edge technology, using appropriate design patterns and best practices. I am a big fan of Uncle Bob and his software development and agile methodologies. Although started out as a frontend engineer, I have good understanding of web development overall can easily juggle both ends of the stack.

Proficiency

Relevant Experience

Urban Compass

October 2018 - Present

• Converted AngularJS components to React components and hooked them up to an AngularJS codebase piece by piece.
• Created new features (UI Components) using AngularJS and ReactJS.
• Coded functional tests using Cypress which significantly reduced the bugs that make it to production.
• Mentored new hires.
• Imlemented unit tests for certain API endpoints using Golang, increased coverage from 0 to 70%.
• After successfully predicting user behavior, I started to get involved with the design stage of the UI components, collaborating with our designers, helping them with creating an easy UX flow that the average user can interact with without thinking too hard.

Shopspring

September 2017 - October 2018

• Within my first week of employment, I setup my local environment and updated engineering onboarding wiki which was out of date. By the first weekend, I had already started pushing code to production, fixing bugs related to frontend
• Identified the major hiccups in development workflow, proposed solutions for linting, testing, and continuous integration
• Implemented Prettier as a linting solution, added commit hooks that runs only on the changed files which reduced the time it takes to lint and commit code for any Javascript related work by a margin of 15-20%
• Implemented integrations for analytics and ab testing libraries Optimizely-x, Amplitude, and Segment. This involved work on both our Javascript codebase for frontend and Python - Golang codebase for backend
• Implemented a personalization solution for customers to save their measurements and refined our search queries to return only the sizes the customer is looking for as a default
• Made proposals for renewing our frontend stack. Switching from a React - Flux/Redux setup to a React - GraphQL solution
• Switched the unit testing technology used for Javascript from Mocha/Chai to Jest. Added pre-commit hooks to make sure added code meets the standarts for test coverage
• Improved the page load performance by a margin of 40% by implementing optimizations for images, ES6 dynamic imports coupled with webpack code-splitting at component level. Also reduced the javascript compilation and execution overhead by using Web Workers to run Redux state changes and React tree diffing algorithms in a parrallel fashion.

Lifion by ADP

September 2015 – September 2017

• Worked on breaking down and migrating a large monolith codebase into micro services
• Designed and implemented an attribute based access control system that complies with XACML specification
• Took initiative to solve the problem of integration testing between microservices. Created a visual interface for defining chained async operations and a test runner to parse and execute tests in given order
• Created a Docker image that allowed all teams working with ui to run containerized selenium javascript tests on headless browsers. This way we were able to make selenium tests a part of our Jenkins builds
• Designed and coded an intuitive user interface for defining traversals over a graph database using React-Redux and plain SVG
• Created the frontend component for authentication service which involved bootstrapping the boilerplate for a React-Redux application and coding React components for login, sign up, forgot username/password etc features.

InRhythm

December 2014 – September 2015

• Amplify Education (Client)
  • Worked on reporting-statistics tool measuring and comparing student academic success and college readiness that’s currently being used by all school districts across 13 PARC Consortium states
  • Implemented interactive React components that was responsible for visualizing student data in graphs and charts as well as a grid structure
  • Proposed Karma-Jasmine-Istanbul setup for Javascript unit testing as there was nothing being done. Hooked up these technologies into our codebase and iteratively improved unit test coverage up to 90%
• Motor Information Systems (Client)
  • Identified and fixed frontend related bugs for a .NET – Marionette web application at the last stages of the project. Closed over 500 tickets over 2 months
  • Updated Marionette, made necessary changes to conform to the new version. Refactored or cleaned up a lot of legacy code
• InRhythm Labs
  • Created a MEAN stack boilerplate that can be used later on other projects
  • Implemented a web application that was used within the company to track tasks, and task management in order to identify wasted resources
  • Mentored new hires in best practices.

Buncee

July 2012 – December 2014

• Started work as the engineer no 2. Although hired as a frontend engineer, I eventually started operating at a full stack capacity
• Cleaned up legacy code and refactored it to follow a proper MVC pattern
• Implmented a fast and responsive ui for an interactive rich presentation design tool
• Set up a load balancer for Apache server
• Wrote stored procedures, designed tables and relations in SQL, normalized the database. Got rid of security risks of SQL injection
• Conducted technical interviews and mentored new hires

Education

Stony Brook University - Class of 2012
Major: Computer Science
Bachelor of Science
Member of Phi Theta Kappa Honors Society