Leading the architecture, development and modernization of QuickBooks Time ($100M+ ARR).

CodeSignal is an automated skill evaluation platform for engineering & technical skills. As a co-founder / CTO I have built the original platform from scratch and have been overseeing the software architecture, technology infrastructure and IT security at CodeSignal, bringing it from zero to Series C (valued at $500M).During the later stages of the company I have built our Cloud Platform team and led it to make the company enterprise-ready for large customers by driving core system reliability and observability initiatives, powered by AWS, Datadog, Node.js and MongoDB, as well as led API integration initiatives across different teams with various partners and external systems.

Developed a Meteor/Node.js-based platform to manage and process special content submitted by users. Researched and implemented a sentence analyzer to detect content similarity.

Developed and maintained various web applications, plugins and tools for more than 100 clients. Projects included financial analysis, product catalogs, SEO automation, form integrations, Wordpress development, optimizations related to data structures & algorithms, database restructuring.

Researched and implemented solutions for error prediction & optimization of the microchip etching process. Worked on improving the efficiency of the existing plane partitioning algorithm.

Worked on various Electronic Design Automation projects, created a data exchange library for distributed parallel processes, made improvements to the automated build scheduler.

Created embedded software for a custom built microchip system along with a corresponding desktop application to automate the telescope navigation process by providing automated calibration and guidance, including a mini-station for attached weather sensors to track the environment conditions.

Built & hosted platforms to conduct competitive programming tournaments, with the ability to execute and evaluate solutions submitted by participants against test data. Created automated test data generators and integrations with 3rd party training portals to compile leaderboards based on training activity.