Who we’re looking for
We value passionate self-starters with a growth mindset and a bias for action and personal accountability. If you love solving hard problems, thrive in ambiguity, and want to make a real impact, you’ll fit right in.
We’re especially drawn to
- Rebels with a cause – frustrated with the status quo and eager to disrupt it.
- Opinionated (but not obstinate) builders — decisive yet collaborative, who help us move fast.
- Clear communicators – who own their ideas and follow through.
Our mission is simple: make effective cybersecurity painless. We believe cybersecurity should empower, not burden. This belief unites our team and drives every decision we make.
As an Application Security Engineer at Oneleet, you'll bring security depth to our product engineering teams as we expand our cybersecurity platform. You'll own the security judgment layer that sits between raw tooling output and what our customers actually see — deciding what to surface, what to suppress, and how to make findings genuinely useful rather than noisy.
This is a hands-on, security-first engineering role at a Series A startup. You'll work closely with backend and fullstack engineers on how findings are stored, enriched, and presented, and you'll partner with product and design on what to build next. You'll be the security voice in product and engineering decisions, and you'll be empowered to push back when security judgment requires it.
You'll work directly with customers – security teams using the platform day-to-day — to understand what they actually need, and iterate quickly based on their feedback.
Qualifications
- 5+ years of application security experience, with significant time shipping security products
- Strong programming skills in at least one of Go, Python, or TypeScript — this is a product engineering role with security depth, not security operations
- Hands-on experience tuning security tooling for production use — reducing false positives, building suppression logic, designing severity models
- Understanding of vulnerability research, CVE/CWE taxonomies, and exploit reasoning
- Has worked through what makes a security finding actually actionable vs. just technically true
- Excellent communication skills and comfort working directly with customers
- Pragmatic; knows how to build things fast without unnecessarily complicating things
- Experience in (and thrives in) a fast-moving, start-up engineering environment