Fredrik Qvarnstrom

I help businesses build reliable, scalable, and maintainable web applications — from MVPs to production-grade systems used by thousands of users.

With strong experience across both frontend and backend, I don’t just write code — I solve problems, reduce complexity, and make sure things work long-term, not just in a demo.

What I do best
- Design and develop end-to-end web applications
- Build clean, well-documented REST & API-driven backends
- Create fast, responsive, and user-friendly frontends
- Integrate third-party APIs, payment systems, and webhooks
- Fix bugs, refactor legacy code, and improve performance
- Deploy, monitor, and maintain production systems

Tech Stack
Frontend
- React, Next.js
- HTML, CSS, JavaScript, TypeScript
- Responsive & component-based UI

Backend
- Python (FastAPI, Django)
- Node.js
- REST APIs, Webhooks, Authentication

Databases
- PostgreSQL, MySQL
- MongoDB
- Redis

DevOps & Tools
- Docker
- Linux
- CI/CD
- Cloud deployment (AWS / similar)
- Git, GitHub, GitLab

Why clients like working with me
✅ Clear communication, no guessing games
✅ Production-ready code, not shortcuts
✅ On-time delivery and realistic estimates
✅ Comfortable working independently or in a team
✅ I ask the right questions before writing code

I’m especially good at projects where:
- Requirements evolve
- Reliability matters
- Integrations are complex
- Previous developers left a mess 😄

How I work
- Understand your business goal
- Clarify scope and edge cases
- Propose a clean technical approach
- Build, test, and iterate
- Deliver with documentation and support

If you’re looking for a senior developer who actually cares about quality, let’s talk.
Happy to review your project and suggest the best approach — even before we start.

If you want, I can:
- Make a shorter, punchier version
- Rewrite this for a specific niche (SaaS, fintech, AI, APIs, startups)
- Optimize it for Upwork search keywords
- Add portfolio project descriptions

Just tell me 👍