Resume

Google, Software Engineer (2016 - present)

Tech Lead, Google Drive Preview

Web frontend to display multiple document types in Drive, Gmail, and several other internal and external products. [JavaScript, HTML, CSS, Java]

• Coordinate with other teams on new and existing features and integrations.
• Identify and execute architecture improvement to reduce cost of maintenance and new development.
• Mentor junior team members on general best practices and details specific to our project.
• Apply static analysis and batched code rewriting to improve code quality.
• On-call for release management and production service monitoring and incident response.
• Own and find owners for escalated customer support issues.

Technical Interviewer

• Evaluate candidates and justify hiring recommendations based on rubrics of technical skills.

Team adviser, Google CodeU

Outreach program pairing teams of undergraduate students with Google engineers to work on a semester-long project to build work experience and interview skills. [Android]

• Met with the team biweekly to evaluate progress, identify roadblocks and facilitate solution planning, and help with interpersonal coordination issues.
• Provided individual advising through email and online office hours.

Radiant Blue, Software Engineer (2016)

Cloud geoprocessing

Prototype for model cloud processing architecture based on off-the-shelf open-source components. [Scala, Apache Kafka, GeoTools]

• Worked with a team to prototype and document recommendations for distributed systems based on open source components to perform automated processing of streaming geospatial data.

Individual Contributor, GeoTrellis

Open-source geospatial operations for the Apache Spark distributed processing framework. [Scala, Java, C]

• Improved accuracy in Proj4J, a Java port of the proj.4 geospatial projection library. Reviewed and resolved inconsistencies in test suite.

Open Technology Institute, Independent Contractor (2015)

Designed and implemented Piecewise, a configurable ingest script and web frontend for exporting and summarizing internet measurement data for interactive visualization. [Postgres, Python, Vagrant, Ansible]

• Worked directly with stakeholders to ensure deliverables were aligned with overall goals.
• Provided configuration, documentation and automation to support code handoff.

Boundless Spatial (formerly OpenGeo), Software Engineer (2007-2015)

GeoGIG

Open-source geospatial database offering provenance-tracking, difference reporting, and automated merging tools inspired by the Git version control software. [Scala, Java, BerkeleyDB]

• Optimized network protocol to reduce overhead and latency.
• Worked with in-house team to develop web UI.
• Worked with contractors to support development of Android UI, including building/deploying on test devices for validation testing.

Tech Lead, GeoNode

Open-source Django app for building geospatial data portals, supporting publishing and search to make data products available for visualization and download. [Python, Django, Javascript, HTML, CSS, Java]

• Managed the team, set technical priorities based on internal resourcing and client needs, met with clients.
• Coordinated with other internal teams on feature development to support our application.
• Supported open-source participation (IRC, mailing list, periodic physical conventions.) Facilitated contributions by maintaining build scripts, responding to bug reports, reviewing code.

Individual Contributor, GeoServer

Open-source implementation of Open Geospatial Consortium standard protocols for geospatial data access and visualization. [Java, GeoTools, Spring Framework]

• Designed and implemented REST API for publishing data layers.
• Participated in framework evaluation and ultimate implementation for revamped Web Admin UI
• Investigated and resolved bug reports from clients and open source community. Proposed and implemented static analysis to improve base software quality (eg, avoid shipping null pointer exceptions)
• Helped to resolve user and contributer issues via mailing list and IRC. Participated in community process for large change proposals. Represented Boundless at conferences.

Duke University (2004 - 2007)

Teaching Assistant

• Acted as project group mentor by helping with planning, scoping, time management.
• Clarified assignments, reinforced lecture materials, troubleshot technology via office hours.
• Evaluated code quality against rubrics, used hidden unit test suites.

Software development

• Worked with researcher to optimize a prototype of ecological simulation using C++ and OpenGL. Investigated and resolved discrepancies in results.
• Worked with researchers to produce software to generate cladistic tree diagrams for inclusion in publishings.

Personal Open-Source Projects

Rocketbooth github.com/dwins/rocketbooth

Touchscreen photobooth application designed for Raspberry Pi with commodity camera/printer. [Rust, ffmpeg, OpenVG]

• Developed partial Rust bindings for ffmpeg media processing library.
• Adapted Raspberry Pi example C++ graphics programs to Rust.
• Designed and implemented configuration file allowing behavior changes without recompilation.

GeoServer CSS docs.geoserver.org/latest/en/user/styling/css

Extension providing alternate cartographic styling language for GeoServer. Now adopted as community-maintained project. [Scala, GeoTools]

• Designed and developed notation following design decisions from CSS3 for more compact and web-friendly style composition.
• Implemented UI for live visual feedback in an interactive map while editing styles.
• Built user base via conventions, mailing lists, IRC.

Education

Duke University, 2007

• B.S. Computer Science
• B.Eng. Electrical/Computer Engineering