Tolu Caleb
Tech Lead (Area) at PostNord
Stockholm, Sweden
Summary
👤
Senior🎓
Top SchoolTolu Caleb is a tech lead and founder with nine years of experience building scalable web and mobile systems across startups and enterprise teams, currently shaping platform strategy at PostNord in Stockholm. He blends hands-on engineering—having built high-throughput NestJS microservices and offline-first mobile apps—with leadership roles from Director of Engineering to Staff Software Engineer, driving architecture, DevOps, and mentoring programs. As founder of Axmof he scaled an e-commerce operation end-to-end, showing practical product and operational instincts alongside his technical craft. Notable past work includes reducing p99 latency from 800+ms to ~90ms with an Elastic Scroll + stale-revalidate cache approach and resolving legacy memory leaks that had persisted for years. He repeatedly bridges product and engineering, translating complex business needs into reliable microservices and developer workflows. Colleagues describe him as a pragmatic problem-solver who prefers measurable impact and developer enablement over flashy tech for its own sake.
9 years of coding experience
11 years of employment as a software developer
Bachelor of Technology (B.Tech.) Computer Science, Bachelor of Technology (B.Tech.) Computer Science at Ondo State University of Science and Technology, Okitipupa
Stackoverflow
463reputation
57kreached
7answers
0questions
Github Skills (16)
hide10
splashscreen10
react-navigation9
react9
react-native9
launchimage9
android7
ios7
javascript6
scrollview6
tab-navigator6
linux4
python4
macos3
windows3
Programming languages (4)
Github contributions (5)
tolucaleb/react-native-multiple-tags
Aug 2017 - Dec 2018
Multiple Select inform of Tags with search bar for react native
Contributions:23 commits, 2 PRs, 14 pushes in 1 year 3 months
reactsearch-barinformreact-nativeselect-multiple
tolucaleb/portfolio
Jun 2022 - Jul 2024
Contributions:2 PRs, 14 pushes, 2 branches in 2 years 1 month
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