I've reviewed thousands of developer portfolios as a hiring manager, and I can tell you: the difference between portfolios that get interviews and those that don't isn't about technical complexity — it's about storytelling and relevance.
Stop building todo apps, weather apps, and calculators. These projects demonstrate that you can follow a tutorial, not that you can solve real problems. Instead, build projects that address genuine pain points. The best portfolio projects are ones where you can explain the problem, your approach, the trade-offs you made, and what you learned.
Every project should have a clear README that answers four questions: What does this do? Why did I build it? What technical decisions did I make and why? What would I do differently? This shows employers that you think critically about your work.
Include at least one project that demonstrates your ability to work with a real API or dataset. Integrating with external services shows you can navigate documentation, handle error cases, and build resilient systems. Bonus points if you can show how you handle rate limiting, caching, or authentication.
Contribute to open source. Even small contributions — fixing a typo in docs, adding a test case, improving an error message — demonstrate that you can read other people's code, follow contribution guidelines, and collaborate in a professional setting.
Finally, make your portfolio itself a showcase. A clean, well-designed portfolio site that loads fast and is accessible tells employers that you care about quality. Include a blog section where you explain technical concepts — this demonstrates communication skills, which are just as important as coding ability.