[2021-2022] Novi / Meta Financial (MFT) Team - Payments processing, compliance with credit card info storage requirements.

[2018-2021] Traffic/Proxygen - Facebook's reverse proxy (https://github.com/facebook/proxygen/), HTTP2 extensions, customer isolation, distributed health-checking.

[2014-2018] Traffic/Targeting - Facebook's DNS load balancer and mapper (aka Cartographer), DNS protocol extensions (e.g. EDNS0 Client-Subnet), utilization control, resolver-based and subnet-based assignment, zero-rated traffic management.

Syncron's Business Process Platform team. Maintaining, extending and optimizing the backend of Syncron's OLAP-based Advanced Analytics component.

Designing and developing NebuloStore distributed storage system (nebulostore.org) on a part-time basis with a team of six people from University of Warsaw. This academic project was initiated within Foundation for Polish Science's research grant and it was the basis of my Master's thesis.

Networking infrastructure team. Developing experimental routing software for Facebook's edge networks.