Portfolio

Design and implementation of a background materialization system to drastically reduce the number of queries per pageview. Multi-process design, database optimization, operational documentation, administrative tooling, monitoring and alerting, and multiple clusters for high availability.

Founder of various efforts, stepped up many times and took official leadership roles to help teams with organizational work, always ensuring direction and progress, starting numerous technical projects and efforts to work with the developer community, and designing internal guidelines and system architecture in coordination with teams and stakeholders.

Over a decade of experience setting up, configuring, operating, and maintaining email services using various technologies. Integration of spam prevention measures and virus scanning capabilities. Development of web-based email interface.

Long track record of contributions over the years to various open-source projects in different programming languages. Codeberg, GitHub, GitHub†, MetaCPAN

Over the years, many different types of interactions with peers, customers, and other people have happened, including product training for customers, internal training for employees, and presentations on company and community events. Video of talk given on Perl Conference

Setup and operation of multiple DNS servers, registration of domains, and maintenance of numerous zones for 20+ years. Configuration of zone transfers between different servers.

Creating and maintaining web services has been part of the job since the beginning, which means extensive experience building websites, web-based tools, and APIs, which are involved in almost every project.

Development of an internal API used to generate IVR phone prompts instead of making recordings under challenging conditions and runtime use to respond with custom voice prompts.

Independent service to prevent overloading backend systems with concurrent API requests. Implementation of event-based TCP server written in C. Highly scalable thanks to minimal state and memory footprint.

Very efficient CSS compression in Perl by porting the logic YUIcompressor uses and optimizing it for speed to be used at runtime to minify dynamic CSS on the fly.

Optimization of every aspect affecting the performance of a high-traffic online platform, constantly measuring performance and looking for new areas to improve. Aspects include image formats, stylesheets, database queries, code efficiency, caching mechanisms, and coordination with other teams.

Readable and compact representation of unique identifiers (UUIDs) using an adjusted base64 encoding with custom padding for compatibility in other contexts. PGXN project page

Porting of many Perl modules and other applications to OpenBSD, contributions to different ports, participation in bulk testing, and improvements to the toolchain.

Development of a content management system for training courses, with participant signup and management, exclusively developed for a client in the software training industry.

Flexible content management system that can adapt to different use cases. Used by numerous customers to manage their web presence and a specialized installation to manage a university branch.

Design and development of a system for distributed media transcoding for a streaming platform that scales with the number of machines.

Planning and setup of an IPSec VPN across multiple offices, connectivity with an ISP, and roaming client access on different operating systems.

Installation and configuration of Solaris servers using JumpStart and setting up web servers to serve dynamic content with Apache, PHP, and MySQL for a big publishing house.

Migration and administration of all web domains from the data centre to an in-house web server. Many different product microsites, some with support and community software. Setup and maintenance of web analytics tools.

Building and operating data migration and transformation tools. Over the years, many specialized scripts and applications have been developed to move data around and into place, shaping it for use in other systems and tools.