Building security from zero: Lessons from the first security hire

COMMENTARY: When I started my cybersecurity career, I worked in large, mature environments where security had entire departments, specialized teams, and the kind of resources most organizations can only dream of. Everything had a process, a ticket, and a team behind it.

Later in my career, I joined a smaller technology company as the first dedicated security hire. It was a complete change of pace, with no existing playbook, limited tools, and a need to show value immediately.

That experience taught me several lessons about building a security program from the ground up in a fast-moving environment.

Lesson 1: Shift left by building trust

In smaller companies, engineers usually have strong ownership of the product. They know it inside and out and take pride in what they’ve built. The key is to make security feel like a natural extension of that pride, not an outside force.

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The first step is building relationships. Instead of leading with policies or audits, start by solving problems together. Contribute to a pull request, automate a scan, or suggest a small improvement that makes their workflow easier. Take the time to understand why the organization functions in the manner it does, since your role will intro disruption, you want to minimize that friction.

These small wins show that security is a partner, not a blocker.

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The harder part is securing time and attention for remediation. Framing risks in business terms helps. Replacing phrases like "this is a vulnerability" with "this could lead to data loss or downtime for a key partner" makes the conversation more tangible. Short one-pagers that connect technical findings to business impact are one of the simplest, most effective tools you can use to align priorities, along with the occasional proof of concept if you have the time.

Lesson 2: Don’t let perfect block progress

As the first security hire, you will almost certainly be overwhelmed by the amount of work to accomplish. The temptation is to build the perfect security program from day one, but progress matters more than perfection. Bad actors don’t care about what your envorment looks like in six months, what matters is now. Rank what you find and start executing. If a fix covers most of the risk with a small amount of effort, take the win and move on.

You don’t need enterprise-scale tools to make real progress. Instead of a full SIEM deployment, start by streaming logs into a lightweight pub/sub service and pushing alerts to Slack. Even if you had a SIEM, you wouldn’t have the time to manage it anyway. A lightweight alternative is effective and good enough to get visibility while you refine your approach. Consistent, visible improvement builds trust faster than aiming for flawless execution.

Lesson 3: Build a way to scale yourself

Eventually, the demands will exceed what one person can handle. When that happens, the only way forward is to scale through systems and people. Documentation is one of the easiest multipliers; every recurring question should become a page or checklist. Automation is another, especially if you embed security checks into CI/CD pipelines so they run automatically on every commit.

The biggest force multiplier, though, is people. Embedding security champions or volunteers across teams distributes ownership and helps security scale naturally. These are engineers who understand both the code and the culture, and they can help drive fixes and share knowledge without waiting for top-down direction. It transforms security from a single point of dependency into a shared responsibility among the engineering teams.

Final thoughts

Being the first security leader in a growing company is challenging but rewarding. Without a large team or unlimited budget, you learn what truly matters: influence, communication, and progress over perfection. Security programs don’t succeed because they copy what big enterprises do; they succeed because they fit the organization they’re in. The best thing you can do is listen, prioritize, and take steady, visible steps forward. Over time, those small steps build the kind of trust and culture that make security part of how the company works, not something it has to do.