# John Schlesinger

> Senior Frontend Developer Specializing in React and Next.js

Location: Washington, New Jersey, United States
Profile: https://flows.cv/johnschlesinger

Experienced frontend developer helping companies build rich and seamless user interfaces for websites and applications.

Javascript, Typescript, React, Next.js, Vue.js, Polymer, jQuery, CSS, SCSS, AWS, MongoDB, Python, TailwindCSS, code reviews, leading frontend projects, and mentoring junior developers.

With my background as a personal trainer, I place high value on consistency and hard work, and helping clients reach their goals.

## Work Experience
### Software Engineer @ Schlesinger Software
Jan 2023 – Present | Washington Township, New Jersey, United States

### Senior Frontend Developer @ Encora Inc.
Jan 2021 – Jan 2023 | Rochelle Park, New Jersey, United States
- Led a team to implement the frontend on LG's headless CMS ecommerce website for LG employees and partners.
- Mentored junior developers on best frontend development guidelines for HTML, CSS and JavaScript.
- Led a team of three mid-level engineers to integrate Avon's frontend checkout flow with Cybersource's payment processor, allowing Avon to meet PCI security standards for their website.

### Frontend Developer @ Encora Inc.
Jan 2018 – Jan 2021 | Rochelle Park, New Jersey, United States
- Utilized HTML, CSS, and JavaScript to design and implement user interfaces.
- Provided proficiency and guidance on frontend libraries such as React.
- Performed A/B testing and optimized application performance to increase conversions on ecommerce solutions for brands such as 1-800-Flowers.

### Flaitron Projects @ Flatiron School
Jan 2016 – Jan 2017
Bestselling Games Gem:
Lists the current bestselling video games on Gamestop.com of your chosen gaming system.
+ Provides a Command Line Interface built in Ruby to allow the user to choose the system of the games they want to list.
+ Implemented Nokogiri to pull in Gamestop data and showcase official best selling games lists to users.

TV Shows Watchlist:
A C.R.U.D. application that allows you to create a list of your favorite TV shows and keep track of their times.
+ Built APIs using Sinatra and the MVC pattern.
+ Used Bootstrap Framework and custom CSS to make front end more appealing and to improve user experience.
+ Implemented ActiveRecord to enable users to create accounts and persist TV show data in a database.

Trainer Client Tracker:
A C.R.U.D application for personal trainers used for keeping track of their clients, their clients’ progress and appointments.
+ Built APIs using Ruby on Rails and the MVC pattern.
+ Leveraged jQuery and JavaScript for AJAX functionality to allow users to load lists of clients and appointments without
 reloading the page.
+ Used OmniAuth for OAuth authentication with Facebook to allow users to seamlessly create an account through Facebook.

Workout Planner:
A single-page application where users can create workouts and add/remove exercises to those workouts.
+ Implemented React and Redux libraries for frontend state management, where user input that changes the state triggers an
instant, automatic update to the user interface.
+ Built a Ruby on Rails API backend to persist data to a database, where users can make isomorphic fetch requests to the API
to retrieve the data.

### Consumer Sales and Service, Game Day Internship @ New York Jets
Jan 2014 – Jan 2017 | East Rutherford, NJ
Worked on Fans First Green Team for home games at MetLife Stadium, East Rutherford, NJ.
- Documented incidents as they occurred during games and wrote a report to be delivered to the Sr. Director of Fan Commerce.
- Set up and monitored autograph signing events of former Jets players.
- Set up Jets Rewards stations at concession stands pre-game and removed them post-game.
- Helped fans and season ticket holders with questions or concerns they had.


## Education
### Learn-Verified Program in Full-Stack Web Development
Flatiron School
Jan 2016 – Jan 2017

### Bachelor of Science (B.S.) Business Administration in Marketing
Ramapo College of New Jersey
Jan 2010 – Jan 2014


## Contact & Social
- LinkedIn: https://linkedin.com/in/john-schlesinger-21438362
- GitHub: https://github.com/Jschles1
- Website: https://jschles-portfolio.vercel.app/

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Source: https://flows.cv/johnschlesinger
JSON Resume: https://flows.cv/johnschlesinger/resume.json
Last updated: 2026-03-29