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Opening course
OpenRefine is a self-paced program at Mangrove Technologies — expect 6 weeks of focused work at a steady pace, or move faster if you can. We teach the practical skills that get you hired — not theory dumps. You work on real projects from lesson one with instructor-recorded video lessons and Q&A, online or at one of our centres in Lagos, Abuja, and Port Harcourt.
By the time you finish, you'll have shipped a portfolio project, joined a community of learners across our centres, and earned a guaranteed three-month internship placement at one of our partner organisations — including NNPC, ETX-NG, Huawei, NOUN, and the Nigerian Navy. The job offer is the point, not the certificate.
Lead instructor
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What you'll learn
Every program is built backward from a real outcome — something you can put in your portfolio or use at work the day you finish.
Format
Online
Recorded video lessons you can watch anytime, project reviews on demand, a Slack group with fellow learners, and project deadlines you set yourself.
In-centre
Drop-in study space at your nearest centre — Lagos, Abuja, or Port Harcourt. In-person project reviews, meetups with other learners, and a workspace when you show up.
Internship
Three months at a partner organisation matched to your stack. Real shipped work, weekly check-ins with your Mangrove instructor, and a reference for your next role. Placements may be paid or unpaid depending on the partner.
