GreenBay: Chief Technology Officer (CTO)
TLDR
Shape the technical DNA and lead scalable AI-powered systems for a fast-growing African trade-in platform.
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
Benefits
Remote-Friendly
Remote possible with regional engagement
Delta40 Studio is a dynamic startup that builds platforms aimed at enhancing access to financing and sustainable solutions for small and growing businesses in Africa. Our projects focus on transforming financial data into actionable insights and developing infrastructure for clean energy deployment, carving out significant opportunities in the rapidly evolving renewable energy and circular economy markets.