Abu Sayem
Senior Engineer, Software Development, Research & Engineering at bKash Limited
Dhaka, Dhaka Division, Bangladesh
Summary
👤
Senior🎓
Top SchoolAbu Sayem is an Assistant Lead Engineer with 8 years of experience designing and shipping scalable, cloud-native systems across FinTech, HealthTech, and EdTech. He combines hands-on full-stack development in Go, Java, and TypeScript with enterprise architecture expertise, having led card-tokenization and PCI-compliant payment integrations at bKash. Known for building high-throughput APIs, real-time features (WebSockets, FCM, VoIP), and resilient storage layers with MongoDB and Redis, he focuses on pragmatic, secure solutions that improve user experience and business metrics. Abu has a track record of taking features from design to production—such as Visa/Amex add-money flows and passthrough merchant payments—while representing engineering teams in compliance audits. Based in Dhaka and grounded in collaborative problem-solving, he seeks challenges that stretch distributed-systems design and operational excellence. A detail that sets him apart: he blends product-minded thinking with low-level performance tuning, not just feature delivery.
8 years of coding experience
4 years of employment as a software developer
Bachelor of Science (B.Sc.), Computer Science and Engineering, Bachelor of Science (B.Sc.), Computer Science and Engineering at North South University
Bangla, English
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (28)
javascript10
open-source10
echo9
design-patterns8
nodejs8
middleware8
tooling8
ssl7
webpack7
websocket7
vue7
csrf-protection6
micro-framework6
high-performance5
fifo5
Programming languages (4)
Github contributions (5)
techartificer/swiftex-server
Jan 2021 - Aug 2021
SwiftEx is an Open Source Delivery Application
Contributions:135 commits, 6 PRs, 3 pushes in 7 months
macosapplication-delivery
caffeines/CPPS
Dec 2017 - Apr 2019
Contributions:41 commits, 37 pushes, 1 branch in 1 year 4 months
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