Founding Software Engineer

Founding Backend & Data Engineers | AI x Cybersecurity | Stealth Startup Tel Aviv, Israel We're looking for strong Backend Engineers and Data Engineers to join the founding team of an early-stage stealth cybersecurity startup building an AI-native platform for autonomous security remediation . Founded in 2026, the company recently raised a double-digit million-dollar Seed round led by a top-tier Israeli VC and is already working with Design Partners. This is an opportunity to join among the company's first five hires , work alongside an exceptional founding team from elite Israeli technology and cyber units, and have significant ownership over architecture, product, and engineering decisions from day one. What you'll do Build core backend systems and data infrastructure from scratch. Develop scalable services, APIs, distributed systems, and data pipelines. Work closely with Cyber and AI researchers on complex technical challenges. Own features and infrastructure end to end, from architecture to production. Help shape the company's engineering foundations and technical direction. Requirements Strong hands-on experience in Backend Engineering and/or Data Engineering . Excellent software engineering fundamentals and system design skills. Experience building scalable, production-grade systems. Backend: experience with Go, Python, Node.js , or similar technologies. Data: experience with data pipelines, large-scale processing, and data infrastructure . High ownership, independence, and a startup mindset. Strong Advantages Previous experience in Cybersecurity. Background in elite technology units ( 8200, 81, MATZOV, Talpiot , etc.). Experience in early-stage startups or founding teams. Experience with AI, LLMs, Agents , or AI-native products. Experience with Spark, Snowflake, Databricks , or similar technologies. 📍 Tel Aviv Only relevant applications will be considered.