GreenBay: Chief Technology Officer (CTO)

About GreenBay GreenBay is on a mission to make appliance ownership affordable and sustainable by creating Africa’s leading platform for trade-in, refurbishment, and resale. We’re tackling a massive market gap while unlocking circular economy jobs and climate-positive impact. Backed by Delta40 and international partners, we’re scaling fast across East Africa. The Role We are seeking a Co-Founder & CTO to join our leadership team. This is a career-defining opportunity to set GreenBay’s technical vision, build scalable systems, and lead our engineering team from zero to one and beyond. The CTO will be full-stack : able to architect, code, and deploy while also recruiting and mentoring a growing tech team. From trade-in AI to payments to multi-channel marketplace integrations , this role spans backend, frontend, and AI. What you’ll do Define & own GreenBay’s technical strategy and architecture. Build and scale full-stack systems: backend services, frontend interfaces, and APIs connecting WhatsApp, Shopify, payments, and logistics. Lead AI-powered product development (valuation models, workflow automation, predictive diagnostics). Recruit, manage, and mentor a growing engineering and product team. Ensure the scalability, reliability, and security of GreenBay’s systems. Play a key role in fundraising, partnerships, and strategic leadership. What we’re looking for 7+ years of full-stack engineering and product development experience. Strong command of backend (Python/Node, PostgreSQL, cloud) and frontend (React, mobile/web) . Proven track record of shipping and scaling platforms (marketplaces, e-commerce, or logistics). Familiarity with AI/ML (LLMs, computer vision, pricing engines). Entrepreneurial mindset—hands-on builder ready for speed and ambiguity. Broad-based business skillset, including ability to think strategically, own and manage a budget, and contribute to commercial success Why join us Shape the technical DNA of a fast-scaling African venture. Build systems at the intersection of e-commerce, AI, and the circular economy . Work with a seasoned founding team (ex-Jumia, Wasoko, MarketForce). Base salary + meaningful equity. 📍 Location : Nairobi strongly preferred; remote possible with regional engagement 💡 Commitment: Full-time, long-term 💰 Compensation: Base salary + equity stake