Ikrum Hossain
CTO at Onramper
Berlin, Germany
Summary
👤
Senior🎓
Top SchoolIkrum Hossain is a seasoned engineering leader and CTO based in Berlin with 11 years of experience building and scaling payment and backend systems across global platforms. He has led mission-critical payment processing, checkout, and reconciliation services at Delivery Hero and Klarna, and now drives fiat-to-crypto on-ramps at Onramper to remove friction between traditional finance and crypto. Equally comfortable in hands-on architecture and people leadership, he coaches teams in agile delivery while prioritizing reliability, cost efficiency, and long-term scalability. His background spans microservices, APIs, and performance-driven backend engineering with practical experience in Node.js, PHP, and Python. Founder of an education startup that introduced Bengali sentence-based programming for kids, he brings entrepreneurial creativity and product intuition to complex technical problems. Living in code and loving backend work, he blends mentoring, operational rigor, and a builder’s mindset to deliver high-impact systems.
10 years of coding experience
12 years of employment as a software developer
Bachelor’s Degree, Computer Software Engineering, Bachelor’s Degree, Computer Software Engineering at Daffodil International University-DIUMaster's degree, Computer Science, Master's degree, Computer Science at Jahangirnagar University
English, Bangla
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (81)
sentence10
twitter10
prototypes10
async9
javascript9
linux9
winston9
js9
notification-api9
nodejs9
notification8
api8
slide8
windows8
plugin8
Programming languages (5)
Github contributions (5)
ikrum/before-and-after
Dec 2015 - Apr 2016
Contributions:24 commits, 23 pushes, 1 branch in 3 months
ikrum/ES6-in-code
Apr 2016 - Apr 2016
Contributions:32 commits, 28 pushes, 1 branch in 18 days
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