About Guardtime We are team of US and Estonian scientists, network architects, software developers and security specialists who have decades of experience building cyber security solutions in our nations' military, supporting national objectives for mission and information assurance. In 2007 we invented Keyless Signature Infrastructure (KSI), a block-chain security technology designed for real-time detection and mitigation of cyber attack. About The Role We're looking for experienced functional software engineers to work on real-time backend systems dealing with high volume events. We need people who want to build systems to apply the power of workflow processing to security events to build deep intelligence platforms. We want people who understand the benefits of converged understanding over imperative understanding. About You - You should have an appetite for tackling complex and interesting software challenges. - Want to build systems that handle data on a global scale in a timely manner. - Have a strong understanding of Linux/UNIX kernel operations - Understand the value of documentation. - Be able to disseminate complex ideas to a wider audience. - Prepared to work in an agile but structured manner. - Prepared to travel in the E.U. - Prepared to travel to the U.S.A. on a quarterly basis. Minimum Qualifications - BS in Computer Science, Mathematics or Physics or equivalent work and life experience. - Clojure, Scala, Java, C/C++ Programming experience. - Large systems software design and development experience, with knowledge of Unix/Linux. Preferred Qualifications - MS or PhD in Computer Science, Mathematics or Physics. - Strong FP skills. - Strong competencies in data structures, algorithms, and software design. - Haskell, Clojure, Scala, Java, C/C++, NodeJS, Python programming experience, database design, knowledge of TCP/IP and network programming. Application Process In the first instance please send your C.V. and GitHub username (if you have one) to khushil.dep@guardtime.com. We have a two stage interview process and we hire quickly.