Interested in reliable distributed systems, systems programming, programming languages, and functional programming. Always curious to learn new topics in Computer Science and related areas. Committer on Apache Kudu (Incubating). Bi-lingual: English, Russian. Specialties: C, C++, Java, Perl, Python, Scala, OCaml, Lisp, Common Lisp, Scheme, Clojure, systems programming, network programming, threading, concurrency, distributed systems, scalability, performance, operating systems internals, DHTs, middleware, RPC mechanisms, open source, UNIX, Linux, FreeBSD

Member of Technical Staff @ From February 2015 to Present (11 months) Software Engineer @ Worked on Kudu (currently an Apache Incubator Project, http://getkudu.io), a distributed datastore for fast online analytics workloads. Key projects: group commit for the write-ahead log, basic support for unattended failover between multiple masters. Primary language used: C++ From July 2013 to February 2015 (1 year 8 months) Software Engineer @ Member of the Data Infrastructure - HStore (HBase and HDFS) team. Evaluated a solution for HDFS NameNode failover. Implement locking for DDL operations in HBase. Reduced latency and improved memory efficiency in HBase through the use of an HBase managed off-heap cache. From March 2012 to July 2013 (1 year 5 months) Senior Software Engineer @ Member of the search, social graph and analytics engineering team (SNA) and distributed data systems (DDS) teams. More about the team and our open source work: http://sna-projects.com/ Worked on Project Voldemort, a distributed data store: http://project-voldemort.com/. Key projects: data streaming, online (i.e., no downtime, accepting reads and writes) cluster expansion and partition migration, hinted handoff (queuing and retrying failed writes, with optimization for cross-datacenter WAN link failure scenarios), failure detection and timeout management, monitoring, and more. Helped on-board important use cases, handle production issues, and scale the clusters under extensive growth. Engaged the academic and open source communities (see presentations and publications sections). From September 2009 to March 2012 (2 years 7 months) Senior Software Engineer @ Worked on the Proofpoint Protection Server (PPS) and Network Content Sentry (NCS) software: industry leading spam detection, email and web security suite. Software development on the core server and OS (Linux) integration. Development in C++, Perl and Java. Extensive use of threading, native sockets and non-blocking I/O. Reduced mail filter agent refresh times (for large rule-sets) by over an order of magnitude. Instrumented the Linux kernel and fixed a semaphore contention issue in eventpoll (see http://tinyurl.com/mvhdqw for a patch). Worked on adoption and deployment of Hadoop: built an initial implementation of HDFS-based event collector. From September 2008 to September 2009 (1 year 1 month) Platform Engineer @ Worked on ad server backend, which served (in 2008) over hundred million impressions on a daily basis. Initiated and drove the adoption of Hadoop for crawling, log processing and analytics. [SocialMedia was acquired by LivingSocial in 2011] From January 2008 to September 2008 (9 months) Production Engineer @ Member of the team responsible for operations on 10,000+ machines in Yahoo's Sponsored Search Serving component. Worked on "Project Panama" (next generation sponsored search). Deployment, configuration and monitoring of various (back-end and customer facing) applications that comprised Sponsored Search. Extensive development of automation and monitoring tools/libraries in Perl and Python. Built a cross-datacenter data distribution tool based on the bittornado BitTorrent client/server. From April 2006 to January 2008 (1 year 10 months) System Administration/Development Consultant (Contract) @ Built out a build environment using open source tools and libraries. Integrated FlexLM licensing into the product. Created a database-driven web application for license generation and management (for use by sales and AE teams, externally and internally). Development in C++, Perl and UNIX shell. [ BindKey Technologies, a subsidiary of DuPont Photomasks was sold to Toppan in 2005 ] From January 2003 to March 2005 (2 years 3 months) System Administrator/Developer (Internship) @ Created a PXE-boot based automated installer for production Linux servers (starting from scratch), allowing fully unattended installs. Developed a log processing and archiving system. Developed some product features. Development in Perl, UNIX shell and an internally designed language (BuddyScript). [ ActiveBuddy was renamed Conversagent and acquired by Microsoft in 2006 ] From 2000 to 2002 (2 years)

MS, Computer Engineering @ Santa Clara University From 2006 to 2009 BS, Computer Science (Mathematics) @ Santa Clara University From 2004 to 2006 De Anza College From 2002 to 2003 Monta Vista High School From 1998 to 2002 Alex Feinberg is skilled in: Distributed Systems, Systems Programming, Unix, C, C++, Java, Scala, OCaml, Clojure, Hadoop, Voldemort, Perl, Security, Common Lisp, Linux