Hivemapper Network is a decentralized map built by people using their smartphone and dashcam. It represents a fundamental shift in how maps are built. Forward looking businesses use our Map API.I’m currently enjoying growing our engineering and research teams.If you’re interested in hard problems in mapping, blockchain, remote sensing, edge computing, 3D reconstruction, distributed systems, or ML, ping me!

Hivemapper 3D is an AI powered way to build smarter maps for monitoring and autonomous navigation. In early 2021 we split Hivemapper into two separate businesses. A top public tech company acquired Hivemapper 3D.I enjoyed growing our product engineering and platform engineering teams, including 3D graphics and data & operational tooling.Highlights included:- driving end to end product instrumentation and analysis, driving significant commercial and product strategy- developing strategies for critical issues, staffing, and tech debt; managing teams executing strategies, reducing product and platform production issues by nearly 100%- launching near real-time 3D mapping via vehicle mounted high tech radios, which is awesome- leading 3D engine in-place subsystem rebuilds, including budget-configurable screen space level of detail, screen space rendering, concurrency & data throughput, data structures & algorithms, computational geometry- tech interview funnel + loop design, training ICs across company to give standardized technical interviews- architecting operations automation strategies, reducing ops labor significantly- implementing ML style transfer in a WebGL render loop, which was useless but cool

As a staff engineer for a 3D product org in a hyper growth company, I wore many hats including tech lead, product owner, architect, engineering manager, and data scientist.I’m most proud of:- leading a team to create a programmable geospatial/3D geometry system that allows our ops teams to fluidly scale by directing thousands of workers through data-driven rules-based instructions and interactions.- developing a robust and performant WebGL powered 3D engine that allowed us to horizontally scale to low cost regions, enabling us to capture an order of magnitude more revenue.- engaging with customers and sales to build a technical roadmap for new products; partnering with customers and engagement team for technical problem solving (incl. spec’ing features and translating into multiple solutions for eng teams with cost benefit analyses).- spearheading statistical annotation tools (and ops analysis suite), reducing labeling CoGs by 5-10% as validated by continuous high power AB testing.- successfully advocating for instrumentation to make goal setting and development as data-driven as possible; leading new ETL efforts.- designing a configurable 3D rendering pipeline that allows modular development of image space effects, GPGPU, different modes of picking, and precomputing rendering work on backend ingest.- running quantitative experiments to reduce cost and improve efficiency through new features and smart defaults (high variance, some aspects of CoGs and efficiency improved up to 50%).- defining technical roadmaps and technical product specifications, breaking them up into deliverable tickets for dev teams. - providing mentorship and coaching to engineers; leading a software engineering best practices club.- collaborating with our recruiting team to continuously evolve a high volume funnel.- inventing visualization techniques for LiDAR, radar, photo, thermal, radiometric.- creatively integrating unsupervised methods and ML models into product.

Product R&D and distributed systems- worked on scaling real-time collaborative video product from 20 users to 200-1000- R&D data-driven features, including real-time ML computer vision sentiment detection and classroom direction assistance- focused on full stack performance engineering, creating a fluid real time experience for many synchronous users- built out high quality operations tooling and administrative systems that enabled us to reallocate engineering resources due to stability and auditing guarantees- developed data visualization tooling to super charge operations- created curve-based streaming handwriting system with controllable fidelity settings to compensate for real-time rendering to 10s-1000s of users with varying connection quality- evaluated pacific rim CDNs for video egress into many regions of China; built distributed load testing suite across China and analysis suite; negotiated with vendors to maximize reliability under load and reduce costs by 80%

3d graphics and infra systems- developed multimodal animation engine for 3D interactive “geo stories” product- implemented multi-platform disk based map tile cache- improved quality and visuals of terrain and atmosphere lighting shaders- boosted numerical accuracy of camera math, precision and speed of math utilities- rapidly delivered full stack development of map tile catalog system- designed backend architecture in collaboration with design and product management to deliver scalable solution WRT feature roadmap, including search solution- architected backend platform for content creation and content serving, including recommendation engine- established multi-platform CI/CD system; built out dev-ops tooling suite- partnered with product management org to develop internal tooling to remove eng as a bottleneck to managing and delivering new content- mentored engineers and advocated for best software engineering practices

Acquired by Nokia.Big data full stack applications and data systems- Reduced memory footprint of main web application by 90% through full stack systems work- Prototyped WebGL and SVG powered data visualizations; mentored and managed an engineer in this area- Improved distributed query engine performance- Refactored and rectified disparate backend query engines into unified system; standardized numerical data marshaling.- Built auditing and intervention tools for distributed query systems- Extended OLAP query system functionality by adding new transformation modes, including statistical analyses and numerical operations- Prototyped statistics tool to automatically measure significance of some observed difference between two queries, including approximating distributions, transforming data, and running non-parametric analyses

• Led design and development of architecture for multiple large scale systems.• Led design and development of dynamic system for describing semantic objects; built semantic computational engine• Full-stack development, including backend application servers, microservices, database design, middleware and caching systems, and frontends ranging from productivity applications with complex interactions to dynamic web pages, 3d interactive apps, novel peripheral input, and mobile applications.• Designed scaling strategies (horizontal and vertical) including terabyte scale distributed system.• Planned and managed resource budget including money, compute and bandwidth, and human capital (including hiring and interviewing candidates).• Led and coordinated various agile development teams, including producing burndown charts. • Sought out and maintained relationships with institutional partners, including libraries, museums, Advanced Research Computing, Digital Education & Innovation, and other universities.• Designed and developed rapid prototypes.• Gave presentations to conferences, classes at multiple universities.• Performed data analyses for different projects and institutions, including aggregation, mining, and analysis; also used for microservices and novel visualization applications.• Researched and developed data mining algorithms and other applied maths.• Used a variety of tools including Java, Node.js, JavaScript, PHP, MySQL, SQL, Redis, MongoDB, Objective-C, HTML/CSS, WebGL, GLSL, AWS, RHEL, Vert.x, Tomcat, Apache, Socket.IO, R, MATLAB, C++, C.• Coordinated and administered user testing and contributed to UX design and development. • Researched novel visualization and interaction modalities, including VR and EEG headsets.• Worked on a mobile multiplayer educational game that won an award.• Produced technical documentations for different audiences, and documented future development plans.

Contracted for building scientific visualization tools for computational medicine & DARPA research group

I built an interactive application that each incoming LS&A student must use before enrolling.

I designed a project's architecture. I met with the development team and taught advanced iOS concepts and technologies, and other web technologies. I set development goals and made sure development was on track.

o Developed algorithms for social collaborative metrics using data mining and machine learning.o Designed course implementation of wiki platform.o Developed a 3D virtual collaborative environment.o Wrote a 3D Studio Max plugin to reprocess rigged 3D models.o Gave a lecture and presentations.o Produced technical documentation.o Created data visualization for the efficient communication of statistical findings.o Worked mostly with Java, PHP, MySQL, UnrealScript, MaxScript, ActionScript, HTML/CSS

o Integrated social collaborative platform into course structure.o Developed a web application for information visualization.o Front end web development work in JavaScript, HTML/CSS.o Gave instructional presentations and produced technical documentation.o Provided regular technical support to students.

3d graphics and data systems- 3D procedural content for targeting commodity hardware- managed small team to build mobile iOS game generating labeled data for Flickr photos- traded high level consulting for data heavy software architecture for both fancy and non-fancy meals

Prototype & retainer services for backend engineering for realtime multiplayer game

o Developed web solutions for diverse clients, including businesses, organizations, software projects, and bands.o Built CMS solutions for organizations.o Designed graphics for e-commerce sites.o Produced CAD schematics for instrument manufacturing.o Arranged manufacturing deals with international factories in China and South Korea.o Designed learning management software.o Developed social media site.

During my time at UMich, I had an economics internship at Ann Arbor’s natural area preservation department. I learned about the economic considerations of public departments and services, shared services and resources, and managing volunteers. Additionally, I learned about challenges of natural area preservation, including dealing with invasive species, dealing with pollution, etc.

o Analyzed accounting data and systems.o Improved data handling protocols.o Crafted more efficient data storage templates.