William Lindeman Email & Phone Number

Detroit, Mi, Us

San Francisco, California, Us

In this role I led development (from prototype to deployment) of AVT, a novel multi-path transport engine for bonding LTE networks into a single virtual link - based on QUIC protocol.AVT replaced our existing ipsec vpn and legacy multipath engine (written in c / glib). The rollout of AVT led to ~100ms baseline latency improvement for all traffic, as well as a 10x improvement in reliability of network paths active during a drive. Our service is pure rust and leveraged tokio, rust-tun, quinn-rs, which allowed us to share a single codebase between our embedded telematics module and our kubernetes cloud-native endpoints.

San Francisco, California, Us

Led design of our on-vehicle video streaming stack:- Two custom camera integrations for hw h264 encoding, leveraging gstreamer with a custom plugin for packetization over the on-vehicle network- Developed software encoding ROS node for h264 in C++ (libx264)- Integration of GStreamer into master ROS node that handles webrtc streaming, signaling, bandwidth estimation and allocation- Video Stream to a custom SFU written in go w/ pion webrtc, and ultimately to our remote-assistance and customer service tooling

San Francisco, Ca, Us

Tandem helps hybrid and remote teams unlock serendipity with a powerful virtual office.My partners and I led a corporate restructuring to transition the company from a venture-backed hypergrowth play into a lean and profitable small business.

San Francisco, Ca, Us

Building WebRTC systems and infrastructure (in elixir / golang)- Designed, Engineered, and Deployed a kubernetes auto-scaling WebRTC Backend in golang based on pion/ion-sfu (as well as contributions to ion-sfu & pion-webrtc)- Developed a scalable recording engine with Xvfb, Pulseaudio capture & encode pipeline in rust- Migrated all backend infrastructure to kubernetes w/ autoscaling, configured deployment pipelines, and handle on-call responsibilities for our Application and AV clusters.- Contributed low level features to react-native-webrtc bindings - Led development of a conference room hardware device based on android tv/react-native- Prototyped emulator streaming experience based on pion (stream n64 games into a webrtc call and handled controls over webrtc datachannel)

San Francisco, California, Us

Embedded RTC Video in Rust/Gstreamer- Led development of a video camera viewing interface for crane operators. The application interfaces with SDI cameras (Blackmagic 4k over SDI pci-e capture card) as well as RTP/RTSP IP cameras. The application is built on top of the GStreamer media framework in Python3 and Rust. - Led development of a live streaming web application using Janus & WebRTC. We relayed video from the crane application over LTE with 1 second or less of latency from construction site to browser. - Led development of autoscaling transcoding infrastructure on top of Kubernetes / GKE for video archive with the ability to generate timelapses of many hours of footage- Prototyped a custom 4k 60fps IP Camera built with GStreamer on the NVIDIA Jetson camera platform with a Sony IMX266 sensor- Prototyped a react-native application that could consume RTP video using GStreamer.framework

San Francisco, California, Us

- Led design of event sourced data engine driving a graph database query layer (golang, dgraph.io)- Developed graph search algorithm for network products that can return a set of network options and latency between two datecenters (within 100-300ms)- Migrated cloud infrastructure to Docker and Kubernetes

El Segundo, California, Us

Primary focus is the Sproutling Wearable Baby monitor- Led development of a scalable Streaming Data Platform (using mqtt, kafka, and flink) targeting 3 billion events / day- Responsible for launching multiple prototype algorithms into production by porting them from python/sklearn to scala & flink- Ported legacy rails app to Golang (adopted microservices pattern)

San Francisco, California, Us

COMPUTER VISION- Identified potential Computer Vision solutions for our multiple problem domains. - Designed evaluation criteria for Shelf Product Detection and evaluated multiple solutions against the acceptance criteria.- Designed and built protoype for In-Store Display Classification using Tensorflow and Inception V3 CNN model. EASYSHIFT (ANDROID)- Refactored codebase to make use of RxJava and Functional Reactive Programming. - Reduced crash rate from 5% to less than 1% while also reducing codebase by ~14,000 Lines of Code.

Santa Cruz, California, Us

Ported the Onewheel App from iOS to Android. The app uses BLE to communicate with the board hardware for gatherting statistics, providing remote control, and performing OTA software updates

Royal Oak, Michigan, Us

At Vectorform/Powerley, I was responsible for the Hardware/Software Architecture for the Energy Bridge 2 - A complete i.MX6UL Embedded Linux based Home automation controller and energy management system. I worked with Suppliers and Chip vendors to evaluate multiple potential System on Chips, peripheral IC's, and different software support packages for each. In addition to the Hardware Architecture for EB2, I also worked on the embedded systems software architecture, and was responsible for EB2's integration into the overall system architecture. - Designed communications architecture based around MQTT that allows seamless device to app communication- Designed high level hardware architecture that incorporated and embedded linux SoC, Zigbee, ZWave, Wifi, and bluetooth- Worked on embedded framework in NodeJS that allowed all of our device firmware code to be written in javascript. Our Zigbee stack was embedded in a V8 C++ module. - Evaluated Hardware Design Vendor Partners for Schematic Capture, PCB design, and prototype manufacturing

Troy, Michigan, Us

- Android based development for Google GlassWhile at vectorform my first project was working on the Google Glass prototype of the Addidas miCoach smart soccer ball. The miCoach Glass app allowed you to connect to the smart soccer ball via BLE, and view statistics for every kick you take in realtime. - Firmware development for LPC1768 based Zigbee smart-energy deviceI worked on firmware for the DTE energy bridge. This was an LPC1768 based device running the mbed platform with FreeRTOS and lwip. I worked on feature development and debugging of issues with the Zigbee communication layerOther Notable Achievements:- Android Bluetooth Low Energy Development -Prototype app for beacon locations for AutoShow- Designed i.MX6-based embedded linux platform development- Worked with Silicon labs EM357 firmware development stack (Zigbee SoC)- Designed IoT RPC communication architecture based on MQTT

Design and development of Bluetooth Low Energy based development tools and connected devicesC++ Firmware development for SoC / RF platforms (nrf51822, stm32, atmega32u4, etc...)Design and development of Bluetooth Low Energy connected mobile applications (iOS/Android)Manage small-scale manufacturing of a consumer productProposals and Sales for contract business during bootstrappingAt lava, I led our Product and Engineering efforts as well as our marketing efforts on our consumer product ION. We started early on investing our time in Bluetooth Low Energy devices and development tools. We designed our own internal hardware prototyping platform (Ember/Torch). Using our platform, we were able to tinker and design connected devices with rapid speed and ease. Because we were able to rapidly prototype product ideas, we were able to just "play" with the technology to find interesting things to do with it. One of these projects was a App controlled light. The feedback around our light project was very positive, and it was clear we needed to take that idea further. We began iterating on the idea of a "smart lamp," and over the course of 9 months and 3 full integration prototypes later, we launched ION to the public. Taking a product from idea, to prototype, through manufacturing, to marketing, and finally into a customers hands was the most interesting and involved learning experience I could've asked for. I really enjoy all aspects of the product development lifecycle, and at lava we left no part of that lifecycle out.

Kennett Square, Pa, Us

Built the Android version of EvilApplesIntegrated Socket.IO based communication layer talking to game serverBuilt custom particle effects engine Custom views/animations built on-top of the android layout systemLead Development from launch until ~850k users

Royal Oak, Michigan, Us

At Livio radio I worked on a number of prototyping projects with the engineering research team.Navigation Prototype:Wrote prototype iOS application to stream google map navigation using Livio Protocol to an In-dash head unit.Rdio Prototype:Did a preliminary integration of the Livio SDK into the RDIO music streaming app Head Unit Prototype:For this project, I worked on the hardware architecture of a prototype fully custom head unit I evaluated multiple embedded linux boards for this project including the PandaBoard, ODroid, Raspberry PI, and the Nitrogen6X board. Using the Nitrogen6X Quad Core board, I developed a custom Android BSP using the Android Open Source Project as a base. On top of the BSP, I integrated a Silicon Labs FM Radio Tuner and wrote an Android front-end application to control the FM Tuner IC.

Troy, Michigan, Us

Worked on VWSharan iPad experience for Volkswagen.Notable Achievements:- Developed Custom quicktime_vr viewer that allowed users to experience the inside of a car on the iPad by moving the device around. It was the first 360 VR viewer of it's kind!