Tobi Olanrewaju
@tobiolanrewaju
I am an experienced senior software engineer specializing in scalable web systems and data pipelines.
What I'm looking for
I am a Senior Software Engineer with 15+ years designing and building scalable web applications and distributed systems for high-traffic fintech and e-commerce platforms. I specialize in microservices architecture, cloud-native solutions (AWS/GCP), and performance optimization, and I led a data pipeline optimization that reduced run-time by 80% (5 hrs to 1 hr) for a 5GB daily ingest.
I have deep backend expertise in Java, Python, and Node.js, experience with Kafka and real-time processing, and a strong track record in product collaboration, A/B testing, and mentoring engineering teams. I deliver measurable improvements—such as a 10% lift in AOV through personalization and a 30% reduction in ride wait times—while building resilient, observable systems.
Experience
Work history, roles, and key accomplishments
Designed and implemented customer personalization algorithms, improving average order value by 10% and increasing retention; developed and optimized e-commerce microservices and real-time Kafka-based pipelines for analytics.
Senior Software Engineer
Ecabs
Feb 2021 - Jan 2022 (11 months)
Developed multi-tenant microservices to enable expansion across multiple European cities and improved dispatch algorithms, reducing ride wait time by 30%; integrated real-time messaging for driver-rider coordination.
Developed and optimized the Rave payment gateway to enable seamless transactions across Africa and integrated multiple payment providers to expand merchant accessibility.
Senior Software Engineer
Venture Garden Group
Feb 2017 - May 2019 (2 years 3 months)
Led a team of 6 engineers to optimize a waste management platform, increasing revenue by 120% and architected an enterprise single sign-on solution for 100k+ users across 25 applications.
Senior Software Engineer
Access Solutions Ltd
Jan 2010 - Jan 2016 (6 years)
Developed a self-service kiosk solution adopted by 4 commercial banks and movie houses. Optimized transaction processing to reduce end-of-day batch execution from over 4 hours to under 1 hour and built a mini-payment switch for 5 microfinance banks.
Education
Degrees, certifications, and relevant coursework
University of Ilorin
Bachelor of Engineering, Electrical Engineering
2005 - 2009
Completed a Bachelor of Engineering in Electrical Engineering at the University of Ilorin from 2005 to 2009.
Availability
Location
Authorized to work in
Portfolio
github.com/olantobiJob categories
Skills
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