Jon Williams

Selected Experience

remote
4/2022 - Security & compliance for corporate cloud communication platforms

Integration of machine learning platform with corporate communications platforms (email, Slack, Zoom, Microsoft Teams, etc.).
Design and implementation of distributed systems at the scale of large corporations' communication volumes.

remote (Seattle, WA)
4/2020 - 2/2022 Implementation of large scale OTT video streaming platforms.

New York, NY
6/2018 - 1/2020 Scalable service design and development for financial social network and brokerage.

Backend architecture and implementation of mobile-first brokerage. Led backend team from conception to launch.
Development of Go services in both Kubernetes & Serverless (AWS Lambda + CloudFormation) deployments.
Design and implementation of high performance pub/sub realtime stock quotes service (Golang / Lambda / ECS).
Developer tooling and automation: utilized Serverless.com and AWS to allow developers to easily spin up personal environments off of arbitrary git branches.
Distributed / serverless architecture design and implementation
- Ingestion of partner event streams over websockets.
- Asynchronous event processing using lambdas consuming DynamoDB Kinesis streams.
- Distributing messaging using Apache Kafka, MQTT, & Amazon SQS.
Cloud data storage using AWS DynamoDB, S3, RDS (Postgres), Elasticache (Redis), etc.
Test driven development using Docker automation for datastore integration testing.
Agile software development with distributed teams.
API engineering using Protobuf RPC endpoints (Twirp) on top of API Gateway.

Brooklyn, NY
5/2016 - 10/2017
Consultant 10/2017 - 5/2018 Engineering leadership for airport-based ridesharing startup.

Took over entirety of engineering responsibilities after departure of previous engineering team.
Managed existing systems architecture; utilizing Docker, Amazon Container Service/EC2, Heroku, MongoDB, Redis, etc.
Development of RESTful services layer in Ruby on Rails, hosted on Heroku.
Distributed systems engineering: utilizing Redis for locks/mutexes, and Sidekiq for asynchronous worker processes. Pub/sub architecture handled via PubNub.
Development of existing taxi routing service layer - Java, OpenTripPlanner, Spring, hosted on AWS.
Development of common codebase Cordova + Angular mobile website & native app.
Rebuilt native app in React Native with Redux.
Supported production environment on Heroku & Amazon Web Services.
Collaborated with external taxi industry technical partners to integrate with multiple vendors’ back-of-cab systems.
Engineering of payments utilizing Stripe including fare allocation algorithms, credit card preauthorization strategies, & reliability engineering.
Embedded in product development process; collaborative feature design & idea generation.
Onboarded, mentored, & supported junior engineers.

Brooklyn, NY
1/2018 - Design & development of experimental audio software.

Sole founder – business conceived as a small-scale means to earn money while enjoying passion for music.
Design and implementation of novel audio software techniques in C/C++.
Audio plugin development on Windows/Mac/Linux for the VCVRack synthesis environment.
Negotiation of software licensing / distribution with partners.
Active participation in open source engineering related to audio technologies.

Selected Courses:

Parallel & Distributed Systems: (concurrency, Pthreads, MPI, etc.),
Introduction to Cryptology (P2P, cipher design, public key, etc.)
Programming Language Design & Implementation (final project: C compiler for JVM using Apache BCEL