# Ivy R. > Software Engineer focused on Rust Location: San Francisco Bay Area, United States Profile: https://flows.cv/ivyr I primarily work with Rust, Elixir, Python, and JavaScript. I enjoy working on high performance systems and have experience with many programming languages and frameworks. ## Work Experience ### Software Engineer @ Stealth Jan 2026 – Present • High throughput Rust service work ### Software Development Engineer II - Search @ Mapbox Jan 2024 – Jan 2026 • Owned and optimized the underlying storage layer of a RocksDB-backed geocoding service, focusing on performance tuning, operational stability, and resource utilization. • Delivered a Rust sidecar service causing a 25% drop in p90 latency e.g. 168ms to 131ms and 15% to up to 40% drop in memory utilization with 10-15% throughput increases for our main geocoding service with decreases in CPU usage and overall latency. • Collaborated on a sagemaker finetuning and training pipeline for our new BERT based ML models in Python. ### Game Developer @ Unknown Jan 2022 – Jan 2024 | San Francisco Bay Area • Released an interactive Tamagotchi-style game using Bevy for the WASM client, Stripe for the payments, and egui for the UI. Collaborated with a game designer in France: https://vpetmon.com • Contributed to Bevy, associated Bevy 3rd party libraries, and egui. • Managed and setup multiple NixOS servers on Linode with custom images. Implemented a HAProxy reverse proxy and MariaDB database with Borg backups. Developed and deployed a custom Rust axum payment and game server using nix flakes and deploy-rs. Utilized Netlify for the CDN to enhance content delivery speed. ### Software Engineer @ Watchful Jan 2020 – Jan 2021 • Collaborated on developing a machine teaching (optimal ml model creation) application using Rust and React, focusing on NLP, in a small, agile team at a seed-stage startup, resulting in significant improvements in application performance. • Optimized Rust backend codebase, improving system performance by over 10% across all user flows by improving code generation and data structures in critical sections. • Enhanced query language by building a regex extension for parts of speech tag matching, allowing for new types of search within the product. • Designed and implemented an NER-based query suggestion system improving information extraction efficiency, leveraging N-grams and advanced machine learning techniques. • Developed an active learning ML Python service leveraging WebSockets using a model created with TensorFlow via Keras, enhancing real-time data processing efficiency from an existing model. ### Senior Software Engineer @ Blueshift Jan 2019 – Jan 2020 • Engineered real-time distributed systems using Go, Elixir, Ruby, and Erlang, improving the marketing platform performance with ScyllaDB as the primary datastore. • Developed an Elixir event processing service using Kafka handling over 100M events daily; contributed enhancements to popular Erlang/Elixir Kafka clients expanding client features; established observability, autoscaling, and monitoring to improve system reliability. • Enhanced the company internal programming language for the product recommendation service through grammar, parser, lexer extensions and a distributed cache implementation, boosting system performance in collaboration with another developer. • Addressed high latency issues in the recommendation service by implementing a new Geospatial database, reducing geospatial operation times to 10% of the original enhancing system functionality and improving user experience. ### Lead Engineer @ The RealReal Jan 2018 – Jan 2019 • Led three diverse engineering teams, implementing key software solutions that drove company's valuation over the $1B mark, pre-IPO. • Delivered key projects across the stack enhancing user experience and system efficiency; introduced robust Javascript testing, improved site performance, notably decreasing the consignor landing page load time by 60%. • Revamped authentication system utilizing Elixir and GraphQL for a backend service, allowing for a new backend service and message oriented architecture to be switched to. • Contributed and led architecture reviews with other engineering leaders in the company. • Delivered presentations on property testing at a local tech meetup and at ElixirConf: https://codesync.global/media/properties-for-all-ivy-rogatko ### Senior Chat Engineer @ Skillz Inc. Jan 2017 – Jan 2018 • Led technical development for a large-scale gaming initiative, successfully delivering a real-time matchmaker using Phoenix and C++, allowing for a new business area to be targeted. • Architected the entire backend system that allowed for numerous new partners to integrate with the company's mobile eSports platform and helped Skillz become a unicorn. • Guided development of C++ RUDP game server integrating with React Native clients, while mentoring an engineer and intern, resulting in the successful launch of a real-time matchmaker and sync game initiative. • Directed backend development using ejabberd and Go for a mobile chat system featuring group messages, presence, friends-list, blocking, and global rooms. • Contributed to ejabberd (Erlang) by forking and creating a custom Elixir module for push notifications, enhancing user experience. Implemented load testing using Tsung, improving system reliability and performance. ### Software Engineer @ Linden Lab Jan 2014 – Jan 2016 • Collaborated on the backend and various websites for the MMOs Sansar (VR) and Second Life. • Prototyped a 3D viewer using three.js (WebGL), enhancing user experience in the Sansar marketplace overcoming challenges in discoverability. • Created an image management feature for Sansar marketplace's admin section and a reporting application using React, Redux, MySQL, and NodeJS, enhancing administrative efficiency and user engagement. • Developed user interface components including login, change password, scene upload, and splash pages using JavaScript and React.js, improving user experience. • Contributed to an authentication and user account system in Go and AngularJS. Helped design and implemented a login system with Redis Sorted Sets and a bloom filter. ## Education ### Bachelor of Arts (BA) in Computer Science and Anthropology Lehigh University ## Contact & Social - LinkedIn: https://linkedin.com/in/ivyr --- Source: https://flows.cv/ivyr JSON Resume: https://flows.cv/ivyr/resume.json Last updated: 2026-04-11