Łukasz Eitner
Building ultra-low latency, resilient backend systems for high-impact transactional domains.
Poland
Full time
Remote
Experienced Senior Software Engineer with over 11 years in developing scalable backend services using Java, Spring Boot, Kafka, and distributed systems....
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My Career Journey
1/4
Pragmatic Coders
Senior Software Engineer
Mar 2024 - May 2026 | 2y 2m
Architected a distributed game simulation engine handling 50,000+ concurrent spins per second with sub-5ms average latency. Developed event-driven pipelines for multi-jurisdictional bet settlement via...
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PayFit
Senior Software Engineer
Jan 2020 - Jan 2024 | 4y
Optimized payroll engine throughput by 40%, reducing processing time for 200,000+ monthly payslips and maintaining compliance. Redefined employee data sync, cutting processing time by 25% across complex...
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Convoy
Software Engineer
Nov 2016 - Oct 2019 | 2y 11m
Developed reactive freight matching algorithm reducing empty miles by 15% for 50,000+ carriers. Built shipment tracking processing 10M daily events, achieving 99.9% traceability. Enhanced carrier onboarding,...
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DueDil (now FullCircl)
Junior Software Engineer
Feb 2015 - Sep 2016 | 1y 7m
Implemented distributed entity resolution pipeline improving AML KYC by 30% for financial clients. Designed real-time risk scoring and automated data ingestion, halving source onboarding time. Enhanced...
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