What I have noticed in my last 7 years is that hiring a developer marketing agency is less about marketing credentials and more about technical alignment.
Founders should evaluate agencies based on several criteria:
**Technical expertise
**Can they explain your architecture? Agencies that regularly work with infrastructure, APIs, and DevTools—like Infrasity or Hackmamba—tend to perform better here.
**Content depth
**Look for real tutorials and engineering articles, not generic marketing blogs.
**Developer distribution channels
**Good agencies understand where developers spend time: GitHub, Stack Overflow, Hacker News, and communities around projects like Kubernetes or Docker.
**Portfolio in developer products
**Experience with API products, infrastructure tooling, or SDK-driven products is a strong signal.
The best partnerships happen when the agency works almost like an extension of the internal DevRel or developer experience team.
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