# Wiktor Macura > Engineering Location: New York, New York, United States Profile: https://flows.cv/wiktor I have 15 years of engineering experience, from working as an individual contributor focused on scaling backend systems to leading the function. The last ten years have been spent at high-growth venture-backed companies through all stages of maturity from Series A through E through IPO. I learned to program early and developed a love for creation that led me to studying computer science and working professionally in the field evolving to today when I derive a sense of accomplishment from building teams and delivering utility for the end-users and the actual mechanics of engineering are a means to an end. ## Work Experience ### Software Engineer @ Jane Street Jan 2024 – Present https://www.janestreet.com/institutional-services/electronic-trading-platforms/ ### VP of Engineering @ Saturn Jan 2022 – Jan 2023 | New York, United States Acquired by Snap. ### Head Of Engineering @ Citizen Jan 2017 – Jan 2022 | New York • Citizen is building the leading mobile safety platform, connecting 10 million people to safety insights and resources. • Joined right after Series A, grew engineering from a team of 4 contractor types to 50+ with FAAMG type backgrounds. Teams spanned growth, mobile, backend, web, video, hardware, and machine learning. • Built and led the data science practice from zero to 8 data scientists and user researchers, transforming our product development process from being intuition driven to informed by data and user feedback ### Engineering Manager @ Square Jan 2013 – Jan 2016 | NYC • Hired as the first engineer in Square's NYC office to recruit and manage a team, growing our east coast presence • Ultimately recruited and led multiple product engineering teams spanning ~25 engineers. We rebuilt the core merchant representation allowing Square to support growing merchants with multiple locations, in the process building the highest growing SaaS product within Square at the time. Was the overall engineering lead responsible for Square's push into the Retail vertical, which included building an entirely new point of sale app on iOS. ### Engineering @ Tumblr Jan 2011 – Jan 2013 | Manhattan • I joined Tumblr right before our largest surge in growth. We had one engineer per billion page views a month before cloud services, so we managed our infrastructure directly. This environment was a great crash course in building highly scalable infrastructure in C and Scala. I was the tech lead responsible for rebuilding and scaling the data processing infrastructure and making the flow for creating new posts scale to thousands per second. ### Engineering @ Wolfram Alpha, LLC Jan 2007 – Jan 2011 • I had the opportunity to join as one of the first engineers working directly with Stephen Wolfram on nearly every part of the natural language parsing, data storage, and serving infrastructure. ### Intern @ TechGuard Security Jan 2006 – Jan 2006 | Baltimore Worked on detecting hacking attempts based on patterns in request headers using basic machine learning techniques. Essentially a web application firewall that learns vs. the regular expressions that are predominant even to this day. ### Intern @ NASA Goddard Space Flight Center Jan 2005 – Jan 2005 | Maryland Modeled parts of the TRMM satellite using i-DEAS, recreating components based on 2d schematics for analysis. ## Education ### Academics ## Contact & Social - LinkedIn: https://linkedin.com/in/wiktormacura - Website: https://wkm.github.io/resume --- Source: https://flows.cv/wiktor JSON Resume: https://flows.cv/wiktor/resume.json Last updated: 2026-04-05