Hey, I'm Jonas.

I'm a Javascript Engineer

With four years of experience building for the web, I’m passionate about creating intuitive, responsive, and visually polished user interfaces. From clean, accessible design to smooth, interactive experiences, I enjoy turning ideas into real-world digital products. Let’s build something great together.

About.

Hey! I'm Jonas if you haven't already gathered that by now. I am a JavaScript engineer based in Lagos, Nigeria.

For the past four years, I’ve helped startups and teams across industries build reliable, user-focused software using JavaScript. My focus has been on modern web interfaces, and my work spans mental health platforms, fintech dashboards, file collaboration tools, and more. While my expertise lies in frontend development, I have collaborated closely with backend teams to deliver complete solutions.

I’ve led frontend architecture on client projects, contributed to design systems, and occasionally worked across the stack when the product demanded it. I care deeply about writing clean, maintainable code and delivering features that solve real problems.

I’m currently open to engineering roles or contracts where I can use my JavaScript expertise to build meaningful products and grow with a collaborative team. Let’s connect 🔗

My links

Use at work

JavaScriptTypeScriptHTMLCSSReactReduxGitHubJiraNext.jsPython

Use for fun

Sanity.ioTailwindFramer-motionGroqFigma

Currently learning

GoBeginner

Projects.

An image of the Facetime project.

Facetime

Next.js - Stream SDK - WebRTC - Socket.io - Tailwind CSS

A real-time video conferencing application with multi-user support and low-latency communications. Learn more >

Work in Progress
An image of the Padihold project.

Padihold

Node.js - Next.js - Tailwind CSS - Radix UI - Framer Motion - Zod - Zustand

The Nigerian way to secure transactions. Nigeria's leading escrow platform. Secure your online transactions with trusted dispute resolution and fund protection. Learn more >

Private Repo
An image of the 365Tax project.

365Tax

🔒
Nextjs - Zustand - Tailwindcss - Tanstack query - Shadcn UI

A comprehensive tax advisory and consulting platform for businesses and individuals in Germany, offering digital tax solutions and expert guidance. Learn more >

Private Repo
An image of the Allos Ai project.

Allos Ai

🔒
ReactJS - Tailwindcss - React Flow - React Query - Zustand - Zod - shadcn UI

A complex data analysis tool for causal discovery and inference, handling datasets with millions of rows and dozens of columns. Learn more >

Private Repo
An image of the Vuhosi project.

Vuhosi

🔒
Next.js - Tailwind CSS - Framer Motion - React query

A modern digital platform for a premier consulting firm specializing in strategic business solutions. Learn more >

YouTube Tutorials.

I also teach web engineering on YouTube! Check out some of my tutorials below and subscribe to catch my latest content.

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Experience.

365Tax.de
Dec 2024 - Present
Senior Frontend Engineer
Freelance

Designing and implementing banking and invoice automation systems for self-employed users and SMEs, with FinAPI integration for real-time financial insights.

Next.jsTypeScriptZustandTanstack QueryTailwind CSSFinAPI Integration
Allos AI
Oct 2024 - Mar 2025
Frontend Developer
Freelance

Delivered a sophisticated causal inference platform within 4 weeks, building complex data tooling, graph editors, and causal discovery interfaces that exceeded performance expectations.

ReactTypeScriptReact FlowReact QueryZustandTailwind CSSShadcn UI
Vuhosi
Mar 2024 - Oct 2024
Founding Engineer
Freelance

Designed and implemented the full frontend architecture for an investment analysis platform, optimizing data rendering pipelines and visualizations to achieve a 4× increase in analyst throughput.

Next.jsReactTypeScriptTailwind CSSFramer MotionReact Query

Contact.

Shoot me an email if you want to connect! You can also find me on Linkedin or Twitter if that's more your speed.