Marek Romanowicz is an engineering manager with 11 years of experience building large-scale machine learning systems and production recommendation engines, currently leading an ML infrastructure team for Instagram Reels in New York. He progressed from hands-on software engineering to staff and managerial roles at Instagram/Facebook, shipping the original Reels recommendation algorithm and then scaling creators-first models across the family of apps. Marek pairs deep backend expertise (Go, distributed data pipelines, cloud deployments) with a product-minded approach to data generation, model training, and robust evaluation. His early career across startups and finance (Flux.io, Goldman Sachs) shaped a pragmatic grounding in system architecture, on-call reliability, and cross-team API compatibility. Originally from Silesia and educated at Cambridge, he blends a strong academic foundation with a track record of turning experimental ML research into reliable, high-throughput production services.
10 years of coding experience
8 years of employment as a software developer
M.Eng Information and Computer Engineering, M.Eng Information and Computer Engineering at University of Cambridge
Polish Matura, Polish Matura at Stanisław Staszic High School no. 14 in Warsaw
Contributions:10 PRs, 17 pushes, 1 branch in 2 days
nodejs-mongodbmongodockernodejsdocker-compose
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Marek Romanowicz - Engineering Manager at Instagram