We build the products others can't.
Mobile. Web. Backend. End-to-end.
Everything you need, nothing you don't.
Mobile App Development
React Native, cross-platform iOS & Android. Native performance, single codebase.
Web App Development
React and Next.js. SPAs, dashboards, portals, and everything in between.
Backend & API Development
Node.js and Python. REST APIs, auth systems, database design, server architecture.
Fintech Product Engineering
Payments, wallets, compliance-aware UX. Built for financial products that have to work.
Third-party Integrations
Payment gateways, analytics, auth providers, and any external API connected cleanly.
MVP & Rapid Prototyping
Idea to working product, fast. Built for founders who need to move.
The stack behind every project.
Frontend
Mobile
Backend
Tools
Every tool chosen deliberately. No cargo-culting.
Gran Jefe is one thing: capable.
Since 2023, built production financial products at a fintech company — performance-critical, compliance-aware, real-world scale.
Alongside that: multiple independent mobile and web products shipped from zero to live. Gran Jefe is the formal home for that craft.
Available for client projects, product builds, and technical partnerships. Any industry. Any scale.
Projects that shipped.
Mobile Wallet App
Secure financial transactions on mobile
SaaS Dashboard
Analytics and management platform
E-commerce Platform
Multi-platform shopping experience
Have a project in mind?
Let's build something great.
Reach out to start a project, discuss an idea, or just say hello.
Based in Abuja, Nigeria. Working globally.