Jonathan Zielenkievicz

Senior Web Developer

2020 — PRESENT

Interpublic Group

• StrudioRx (2023)
• Craft Worldwide (2022)
• Freelance Consultant (2020)

Built and update health care provider‐facing pharmaceutical websites, web apps, banners, and HTML emails; provide high quality maintainable code in a fast‐paced work environment.

Front End Web Developer

2015 — 2020

NYC Tourism + Conventions

Maintained and assisted with upgrades to the Official Visitor's Guide to New York City, which was visited several thousand times daily; rebranded signature marketing programs (e.g., Broadway Week, Off‐Broadway Week, Restaurant Week) and other initiatives that helped NYC tourism grow from 54 million visitors (2014) to over 66 million visitors (2019); proposed and implemented new technologies to improve front end development, performance, and speed.

Web Developer

2014 — 2015

Fly Communications

Worked with designers and project managers to create dynamic, optimized websites that met client needs and were aesthetically pleasing; built tailor‐made websites for nationally recognized brands; updated legacy code using graceful degradation for older web browsers; researched the latest developments with web technologies and incorporated best practices.

Jr. Web Developer

2009 — 2013

Sanky Inc.

Built custom websites, landing pages, HTML emails with cross‐browser/platform compatibility for nationwide nonprofits; gained proficiency in multiple client CMS platforms; led account teams on SEO techniques, resulting in top rankings for keywords.