John Ehrhardt Email & Phone Number

Bellevue, WA, US

I support a team of roughly 100 engineers that own the end to end messaging flows, storage, and related systems for Facebook, Messenger, Instagram, and more.

Supported teams of 10-40 engineers for Facebook's Video and Voice Chat mobile product experience and backend. Launches included Mobile Video Calling, Group Audio & Video Calling, Video Calling Effects, and an attempt at a new mobile app, Bonfire, as well as platform integrations with Facebook Live, Portal, and Instagram.

Seattle, WA, US

• Engineering Manager for Kindle's messaging middleware that consists of a communication protocol, push services, and device to device team.We focus on supporting the launch of a new messaging middleware and custom.
• Amazon Device Messaging 2013 Launch: Provides the pipe to devices for delivering push messages.
• Amazon Kindle Mayday 2013 Tablet Launch: Enabled audio/video signaling and remote device control between customer tablets and customer service agent PCs.
• Amazon Instant Video Second Screen 2013 Tablet Launch: Enabled device to device communication between Amazon Kindle tablets, Amazon Fire TVs, Sony PS3 and PS4 and Samsung 2013 Smart TVs.
• Amazon's Fire Phone 2014 Launch: Provided messaging that powers multiple key apps including Firefly and Maps.In order to provide persistent connectivity for our customers, we face regular challenges with:
• Networking: Device firmware integration/validation, Wi-Fi and 3G/LTE networks, handling various restrictions from internet infrastructure like web proxies and firewalls, and TLS/TCP/IP gotchas

Seattle, WA, US

• Engineering Manager for Kindle Whispernet Services, providing ubiquitous wireless coverage for Amazon Kindle globally in over 100 countries.Our team focused on supporting new devices and their connectivity.
• Device gateway proxies that provide authentication, authorization, and accounting (metering) for device connectivity.
• Push messaging via SMS, TCP, and UDP coupled with server-side queues.
• Key business metrics including Kindle's Books in 60 seconds metrics
• Carrier integrations to manage devices, SIMs, SMS, and connectivity.
• Manufacturer integration to support device provisioningAccomplishments

Seattle, WA, US

• Fulfillment By Amazon (FBA) is a highly successful Amazon product, which takes away all the operational pain out of selling and fulfilling products online. FBA supports a range of customers, from one time sellers to.
• Providing sellers visibility and tools to manage their inventory.
• Monitoring FBA inventory and assessing appropriate fees and reimbursements.
• Ensuring FBA inventory is available for sale on Amazon websites.
• Providing a robust and flexible report framework to support various FBA reports.

Seattle, WA, US

I was the fourth developer to join the Fulfillment by Amazon team. At first we had just a few beta sellers that were very patient with out progress and grew it into thousands of successful sellers and millions of happy customers.This was very challenging and rewarding position. I defined, designed, and developed solutions to problems with ambiguous.

Seattle, WA, US

Shipping Services owned configuration and calculation of shipping rates and rules (how can product X ship to address Y) and launched the Prime member free 2-day shipping option in 2005.We owned highly scalable systems that provided shipping information on the Amazon.com detail page, evaluated shipping eligibility and costs withing the checkout pipeline.

Armonk, New York, NY, US

I was an intern for the Tivoli Event Console group within Tivoli at IBM. I learned a bit about j2ee and IBM's love of documentation.

Ms, Computer Science W/ Specialization In Communication Networks

Bs, Computer Science W/ A Minor In Business Administration