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Back End Developer (Node.js, SQL) at Action1. About us . Action1 is an autonomous endpoint management platform that is cloud-native, infinitely scalable, highly secure, and configurable in 5 minutes—it just works and is always free for the first 200 endpoints, with no functional limits. By pioneering autonomous OS and third-party patching - AEM’s foundational use case - through peer-to-peer patch distribution and real-time vulnerability assessment without needing a VPN, it eliminates costly, time-consuming routine labor, preempts ransomware and security risks, and protects the digital employee experience. Trusted by thousands of enterprises managing millions of endpoints globally, Action1 is certified for SOC 2 and ISO 27001.. The company is founder-led by industry veterans Alex Vovk and Mike Walters, American entrepreneurs who founded Netwrix, which has grown into a multi-billion-dollar industry-leading cybersecurity company.. You will:. . Develop API and backend for a high-load product with numerous endpoints. . Optimize SQL queries to handle billions of data. . Do code optimization to support many connections. . Make the world more cyber secure every day!. . . 4+ years of software development experience. . Excellent knowledge of Node.js, JS, SQL/MySQL. . Experience in designing and developing REST APIs. . Good knowledge of AWS (Lambda, RDS, Dynamo). . Knowledge of PHP or readiness to learn it. . Ability to work independently and as part of a team in a highly dynamic and fast-paced environment (yes, as always :). . Company Location: Poland.