22.01.2026 aktualisiert
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Expert Full-Stack Developer, React, Next.js, Node.js, Express.js, TypeScript | 6+ years
Berlin, Deutschland
Berlin +50 km
Bachelor of ScienceÜber mich
I'm Ayomide, a Full-Stack Developer in Berlin with 6+ years building React, Next.js, TypeScript, Node.js, and PostgreSQL applications. I've built heyFinance (90+ users) and worked across FinTech, EdTech, and HealthTech. I specialize in building complete products from frontend to backend. Let's talk!
Skills
Hello, I'm Ayomide, based in Berlin, Germany. I am an expert Full-Stack Developer with over 6 years of experience, specialized in React, Next.js, TypeScript, Node.js, Express.js, PostgreSQL, and modern frontend technologies (Tailwind CSS, React Query, etc.).
I have worked with several startups and teams building complete products from frontend to backend, and I've also built heyFinance, a financial management platform with 90+ users. I have worked across several industries, including FinTech, EdTech, HealthTech, and Sales.
I normally come in when:
- You need someone who can handle both frontend and backend development seamlessly
- You do not just want a technical expert, but someone who also has experience as a founder himself and knows a thing or two about understanding customer needs and feature prioritization
- You have an idea and need a seasoned technical expert to build the complete product quickly and without bugs
- You have a team working on an existing project, and need a professional to join on short notice, without any long-term commitment
- You need someone who can leverage AI and other technologies to iterate quickly
These are other things you might want to know about me:
✅ Built full-stack applications with secure APIs, database design, and responsive frontends
✅ Optimized client's frontend, reducing bundle size by 70%, and improving load times by 60%
✅ React, Next.js, Node.js, Express.js, PostgreSQL, and TypeScript Expert
Ready to discuss your project? Send an invite and let's talk.
Sprachen
DeutschGrundkenntnisseEnglischMuttersprache
Projekthistorie
- Architected and built a multi-tenant SaaS platform for personal and corporate finance, with JWT-based authentication, Supabase integration, and modular REST APIs, ensuring scalability across users and organizations.
- Designed the transaction system as the core data model, powering budgets, accounts, debts, and receivables, with frontend features in React/Next.js + Tailwind and seamless server-state handling via React Query.
- Implemented CSV import pipelines with mapping and normalization, integrated with AI-powered transaction categorization to improve accuracy and reduce manual input.
- Set up CI/CD pipelines with GitHub Actions, integrating automated builds, test scaffolding (Jest/Mocha), and deployment to Vercel/Render.
- Deployed to a private beta with 50+ users, iterating on feedback to refine transaction workflows and ensuring mobile usability through Progressive Web App (PWA) implementation.
- Developed and optimized core features of an AI-powered B2B multi-tenant conversation intelligence SaaS platform using Vue.js, improving sales team efficiency with a 10% increase in call activity and a 43% boost in conversion rates.
- Designed and implemented secure, scalable REST APIs with Django Rest Framework, including database modeling, custom serializers, and permissions logic to support platform-wide multi-tenancy.
- Wrote comprehensive unit tests with Jest and upheld code quality through code reviews and pair-programming, fostering knowledge sharing and engineering best practices.
- Led the development and maintenance of a Vue-based Chrome extension, enabling seamless integration with CRM systems such as HubSpot, Salesforce, and Microsoft Dynamics, reducing documentation time by 80%.
- Led and mentored a team of 3 engineers and a product designer, fostering collaboration across frontend and backend teams to deliver high-quality, custom LMS features that increased teacher engagement by 20%.
- Architected and developed responsive and accessible frontend features using React and Next.js, achieving an SEO-optimized user interface.
- Designed and implemented backend solutions with Node.js (Express.js) and PostgreSQL, ensuring secure data management and seamless frontend-backend integration.
- Enhanced system performance and security by leveraging AWS S3 for scalable storage of course materials and Amazon CloudFront for fast, localized access. Implemented AWS-signed URLs to securely stream content without allowing downloads, ensuring both performance and protection of intellectual property.
- Aligned technical execution with the platform’s mission of making teacher training affordable and accessible, ensuring engineering decisions directly supported educational impact.
Portfolio
heyFinance: Financial management platform/PWA app
heyFinance is designed to help individuals take control of their money without feeling overwhelmed.
It allows users to set budgets, track spending, and keep an eye on their savings, investments, and debts — all in one place.
The goal is to make managing money possible and easy for everyone.
https://www.heyfinance.co/
Schoolinka: Learning Management System (LMS)
I oversaw a small engineering and design team, defined the product architecture, and established the technical direction to ensure scalability and long-term growth.
Technologies: React, Next.js, Node.js, TypeScript, React Query, Tailwind CSS, PostgreSql, Prisma, AWS S3, AWS CloudFront
https://schoolinka.com/
bao: AI-powered Sales and Conversation software
I optimized the frontend performance, which included advanced bundling, lazy loading, and a complete refactor of the CSS architecture.
Afterwards, I led the development of the browser extension and continued contributing across the stack — enhancing user workflows and platform scalability.
https://app.bao.solutions/