Daniel Parreira
Senior Software Engineer at Meta
England, United Kingdom
Summary
👤
Senior🎓
Top SchoolDaniel Parreira is a Senior Software Engineer based in London with 13 years' experience building high-performance JVM and Python systems across media, fintech, and platform companies, and is currently at Meta. He has deep expertise in Java concurrency, Kotlin microservices, and low-latency engineering—highlighted by an evergreen GitHub project implementing memory-mapped shared objects for cross-JVM throughput. His career spans full-stack beginnings to designing S3-to-BPMN media pipelines and financial crime name-screening/onboarding systems, demonstrating both greenfield initiative and production-grade rigor. A lifelong learner, he’s revisiting functional paradigms and studying machine learning from a mathematical perspective while actively optimizing developer productivity through tooling and automation. Not obvious from titles: he prefers squeezing hardware and language limits for measurable performance gains rather than relying on higher-level abstractions.
13 years of coding experience
6 years of employment as a software developer
Bachelor, Bachelor at Universidade Nova de LisboaMaster's degree, Master's degree at Technische Universität Dresden
German, French, Spanish, English, Portuguese
Stackoverflow
3reputation
0reached
0answers
0questions
Github Skills (113)
ecosystem10
golang10
amazon10
docker10
unirest10
desktop-application9
client-library9
camunda9
modeling-tool9
moby9
assemble9
chronicle9
container9
java9
aws-sdk9
Programming languages (10)
Github contributions (5)
metabrain/interviews_and_algorithmic_exercises
May 2016 - Apr 2021
Contributions:16 pushes, 1 branch in 4 years 11 months
metabrain/powershell-timelapse
May 2013 - Dec 2013
Contributions:9 commits in 6 months
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