Peter Njeru
Senior Backend Engineer at Cellulant
Nairobi County, Kenya
Summary
👤
Senior🎓
Top SchoolPeter Njeru is a Senior Backend Engineer based in Nairobi with 7–8 years of experience building high-performance, distributed systems across Fintech, AI, and communications. He has driven cloud migrations and microservices modernizations that cut response times from ~10s to under 5s and transformed UI load times from minutes to seconds. At Microsoft he integrated applied AI into productivity platforms—shipping assistant skills, summarization, and contextual search features used by millions—while at Mastercard and Safaricom he led payment orchestration and M-Pesa integrations that underpin large-scale mobile money workflows. He combines strong systems thinking in Java/Spring and cloud-native architectures with an eye for UX collaboration and developer documentation, evidenced by widely adopted API guides earlier in his career. Now focused on AI-integrated backend platforms, he brings a pragmatic blend of performance engineering, secure payments expertise, and product-minded delivery to mission-critical systems.
7 years of coding experience
9 years of employment as a software developer
Bachelor of Science (BS) Telecommunications Engineering, Bachelor of Science (BS) Telecommunications Engineering at Jomo Kenyatta University of Agriculture and Technology (JKUAT)O Level, O Level at Nairobi School
Kiswahili, English
Github Skills (11)
api6
react5
nodejs5
javascript4
web-application3
mhealth2
web-development2
python1
protobuf1
protocol-buffers1
endpoints1
Programming languages (3)
Github contributions (5)
andela/ah-scorpion
Jul 2018 - Sep 2018
Contributions:17 commits, 8 PRs, 46 pushes in 2 months
andela/ah-scorpion-frontend
Aug 2018 - Sep 2018
Contributions:114 commits, 7 PRs, 73 pushes in 24 days
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