Senior Software Engineer
Act Security
Software Engineering
Tel Aviv District, Israel · Tel Aviv-Yafo, Israel
Posted on May 28, 2026
About Us
We're building the future of cloud security- not another dashboard that tells you what's wrong, but a platform that actually fixes it.
Act Security helps organizations understand who and what can access their cloud resources, and gives them the tools to enforce precise, zero-trust policies- without breaking things. We map access paths across cloud environments, surface real risk, and enable teams to act on it safely. As AI becomes embedded in every digital asset, the attack surface is expanding- and we're building the infrastructure to secure it.
We're early-stage, well-funded and growing fast. If you want to build something meaningful from the ground up and see your work ship to production within days- this is the place.
Our Culture
We live by three values: Win, Learn, Have Fun. We play to win- we set ambitious goals and hold ourselves to high standards. We learn constantly- from customers, from each other, and from our mistakes. And we have fun doing it: we believe great work happens when people enjoy working together.
What You'll Do
We're building the future of cloud security- not another dashboard that tells you what's wrong, but a platform that actually fixes it.
Act Security helps organizations understand who and what can access their cloud resources, and gives them the tools to enforce precise, zero-trust policies- without breaking things. We map access paths across cloud environments, surface real risk, and enable teams to act on it safely. As AI becomes embedded in every digital asset, the attack surface is expanding- and we're building the infrastructure to secure it.
We're early-stage, well-funded and growing fast. If you want to build something meaningful from the ground up and see your work ship to production within days- this is the place.
Our Culture
We live by three values: Win, Learn, Have Fun. We play to win- we set ambitious goals and hold ourselves to high standards. We learn constantly- from customers, from each other, and from our mistakes. And we have fun doing it: we believe great work happens when people enjoy working together.
What You'll Do
- Design and build backend systems that process complex cloud infrastructure data at scale
- Own features end-to-end: from architecture to implementation to production
- Work closely with Product and Research to turn security insights into real, usable capabilities
- Leverage AI tools as part of your daily workflow- we build with AI, not just for AI
- Improve our codebase, tooling, and engineering practices as we grow
- 5+ years of hands-on software development experience
- Strong backend skills (Node.js/TypeScript or Python preferred)
- Experience working with cloud platforms (AWS, Azure, or GCP)
- Solid understanding of system design, data structures, and performance tradeoffs
- Strong sense of ownership, clear communication skills, and ability to move fast without cutting corners
- Real ownership- this is an early-stage company where engineers drive decisions
- AI-native environment- you'll join an AI-native team. We help customers secure their AI workloads, build intelligent automation into our product, and use AI tools every day as part of how we build and ship.
- Top-tier team- founders with deep security and product experience, surrounded by a team of experts and backed by leading investors
- Competitive package- strong salary, meaningful equity, and the upside of joining early