John Keiser Email & Phone Number

San Francisco, CA, US

Building a novel, groundbreaking visual devops / infrastructure management platform with an amazing team.

Primary open source maintainer (with Daniel Lemire) of simdjson, world’s fastest C++ JSON parser, with real-world usage in fundamental places like node.js and algorithms used in Rust, Java.* Designed and implemented novel “on demand” API, allowing high-performance streaming parsing without sacrificing usability (paper: https://arxiv.org/abs/2312.17149).*.

San Francisco, California, US

[Lynxtool purchased by Figma in mid 2022.]Responsible for improving company-wide C++ practice and infrastructure, and design and implementation of features focused on making UI design more accessible to developers.* Built interactive preview feature for Figma component updates.* Designed and implemented expressive typescript-like iterator processing for.

Berkeley, CA, US

Responsible for most aspects of visual programming language, including compiler, graphical language editing, execution and debugging UI/UX, and deployment infrastructure:* Built multiple language features into compiler, improving compiler to support complex flow such as loops.* Built intuitive, debuggable visual loop feature end to end, including compiler.

Redmond, Washington, US

Responsible for Azure’s global datacenter growth speed and stability of Azure-wide monitoring data collection and alerting, including:* Identified and solved multiple-month delays in datacenter buildout by introducing systemic dependency management and automatic workflow across more than 30 services core to the Azure stack. Savings* Built deployment and.

Seattle, WA, US

Responsible for creation of multiple revenue-generating products, as well as improvements to the scalability of existing product lines. Managed and optimized shipping pipelines, production systems, and incident response, as well as focusing on the enablement of developers to build and operate code at scale.* Created Chef Provisioning, enabling provisioning.

Redmond, Washington, US

Member of a team which designed and developed compiler for a new functional language for textual DSLs and data mashup, query, processing and manipulation. Specific contributions:* Led team to develop the SQL schema and expression compiler for the new language.* Created HTML and CSV data extraction and expression query for new language.* Wrote Visual Studio.

Redmond, Washington, US

Member of a team that developed, tested and ran a large-scale distributed storage and processing service used initially to store and analyze logs for Bing.* Co-wrote widely-distributed white paper on test strategies for large-scale distributed services, used across Microsoft.* Wrote and operated environment dashboard and crash dump categorization for test.

Redmond, Washington, US

Key member of team which tested and ran Microsoft's large-scale search service. Designed integration test strategy and C# testing framework, managing multiple people to get the core important tools and infrastructure running.* Wrote earliest integration tests, finding critical cross-component issues early in the development cycle.* Wrote and operated.

Dulles, Virginia, US

Key developer (see bug list) and owner of HTML forms on Netscape (Firefox) browser, a massive open source project written in C++. Participated in the W3C XForms Working Group. Streamlined the development and shipping process, including writing automated code review tools and the tinderbox3 CI system.

Lead engineer at a 2-person startup, with full end-to-end responsibility for a ticket sales system and shopping cart in Mason, Perl, and PostgreSQL.

As a consultant, John designed and implemented a variety of database-driven network applications, embedding and mentoring teams to ensure long-term maintainability. Companies such as Swiss Bank, MCI-Worldcom, Lycos, the Chicago Tribune, Land's End, and Follett book publishing used John’s deep expertise in Java, C++, Perl, Oracle and Postgres, among others.

Chicago, Illinois, US

Administered Novell network, SysV Unix Server, Progress database, 70-80 client computers with Win3.1/95. Wrote database programs in MS Access and Progress (Symix) to improve efficiency of company’s advertising mailing systems.

Lead software developer for WWW-based educational quizzing system for NCSU chemistry department using C++, Perl, CGI, Linux web server. Deployed in Chemistry lab in a token ring running Netscape on Windows 3.1.

Graph theory research (including the four-color theorem) using C++, T.A.+tutor for Discrete Mathematics; tutor for C++, Advanced Data Structures courses.