Alexandr Sergeyev's Resume

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Career Focus

Making ideas executable using knowledge, instinct, careful research, and effective communication.
Minimizing cost and maximizing performance of SaaS and IaaS solutions; continuously learning new things; building resilient distributed systems.

Skills

10+ years of

• architecting and improving components of Internet applications that handle constant growth of requests, users, and features;
• web-applications programming and effective use of Perl, Python and Ruby with their popular web frameworks;
• creating application systems that effectively use modern hardware; expert-level coding in Go/C/Python/Perl.

Years of

• managing Linux and FreeBSD servers; installing/configuring server software; using PXE, kickstart/preseed, Chef, and Puppet for automated systems management;
• working in results-oriented teams that employ continuous integration and various development methodologies;
• creating, testing and improving applications written in C/C++ and Java;
• building enterprise-scale web-services that expose API with XML and JSON serialization;
• data mining/crunching with variety of tools; strong math, statistics and R skills (things like ggplot2 and aov are not new to me);
• strong info-security background, experience of preparing systems to satisfy PCI compliance requirements;
• developing cross-browser Javascript applications with and without JS frameworks (jQuery and D3.js); building complex interactive web applications;
• using MySQL, PostgreSQL, engineering prototypes and production applications that interact with NoSQL storages (MongoDB, Cassandra & others);
• utilizing popular message queues for application communication (ZeroMQ, RabbitMQ, NSQ ...);
• understanding differences in real and virtual hardware and specifics of running software in cloud computing environment;
• managing groups of 2-5 extremely talanted engineers coordinating efforts with 5-7 other teams;
• teaching peers new skills and technologies.

Hands-on experience in

• deploying and managing OpenStack private cloud on dedicated hardware;
• administering network devices and configuring network routers;
• working directly with ICANN domain name registries using EPP protocol;
• integrating with popular web services API (Google Data APIs, Amazon cloud services, etc);
• search engine optimization, web-performance tuning;
• writing simple scripts in R, prototyping data visualizations with ggplot2;
• general math, statistics and business-oriented data mining and analytics, design of experimetns (multi-factorial analysis).

Employment History

• Fastly Inc., San-Francisco, CA, USA
  (Next generation content delivery network)

  Network Tools Engineer, July/2016 - Present time

  ...

• Dyn Inc., Manchester, NH, USA
  (Internet performance solutions and infrastructure as a service provider)

  Application Developer, Nov/2006 - 2008

  Improved e-commerce functionality of DynDNS.com website (handled all aspects from UX and SEO to programming and web-performance). Created multiple backend applications and systems.

  DynDNS Lead Developer, 2009 - 2010

  With the team of 2 continued improving DynDNS website, added multiple service components, including one for seamless migration of acquired companies userbase. Improved user conversion and renewal rates, accelerating product revenue.

  Manager of Performance and Optimization Team, 2010 - 2011

  With three other engineers re-designed and improved DynECT DNS customer-facing monitoring system, and worked on improving multiple Dyn SaaS products (e-commerce, enterprise DNS and E-mail).

  Sr. Engineer of Labs, 2012 - 2013

  Full-stack research and engineering focus: architecture, network, data storage and frontend application layers. Designing and prototyping solutions for further adoption. Writing blog posts and teaching fellow engineers. Lots of collaboration with a great boss.

  Manager of Labs, 2013 - 2014

  Lead team of few incredibly talented individuals; onsite full-time engineers and contracted professionals.

  Assisted senior leadership with due-diligence analysis of potential acquisitions.

  Managed projects visualizing amounts of activity streamed from globally-deployed production systems.

  Assisted in the efforts of capacity analysis engineers and helped them to mine important system performance data and its analysis.

  Worked on multiple projects researching applicability of new hardware and software in Dyn solutions.

  Principal Engineer of Data Analytics team, 2014 - Jul/2016

  Improved software supporting data mining for Dyn Internet Intelligence product.

  Participated in improving quality of Dyn's Enterprise DNS Traffic Director service.

  Researched and validated some of the the methods to improve IP geo-location data.

  Created series of tools that analyze and monitor collected production systems data.

• The Livingston Group of Marketing Research, Windham, New Hampshire, USA
  (Marketing research and consulting company serving Fortune-500 clients)

  Director of Web-Based Research Applications, Apr/2001 - Sep/2006

  Implemented Interface(tm) marketing research technique as a complex online testing system of few related applications.

  Wrote a multiuser program to manage educational e-mail subscriptions (application to create sets of letters to be delivered on an individual schedule).

  Developed survey management scripts for collecting, checking and screening people's responses; exporting results to SPSS or CSV files including a tool for converting any XML files to custom-format data file with optional calculation stage.

  Created lightweight AdWords API Perl library that allows to use Google Adwords API even in the envirorments that do not have Perl-XML modules installed.

  Managed Linux servers with more than 50 working web projects (Apache HTTP service with PHP and mod_perl frameworks) and IT services for company employees and contractors (MySQL, SSH, FTP, CSV, DNS, SMTP/POP3 server with spam and virus filters). Selected services and software providers, facilitated regular software upgrades.

  Learned a lot from a great mentor who helped me to realize my potential as a professional.

• JSC "National Information Technologies", Petropavlovsk, Kazakhstan
  (Internet service provider, country-wide FrameRelay/X.25/IP network operator)

  Engineer then Senior Engineer, Apr/1998 - Feb/2002

  Learned about Internet tecnologies and web standards. Developed and supported company's web sites.

  Performed netops tasks: configured, monitored and managed "Cisco" routers, Dial-Up modem pools, and other devices. Did planning, addressing and routing for segments of wide area network. Played role of a group leader in deploy procedures.

  Managed Linux, FreeBSD and SCO Unix servers in 24*7 production environment.

  Created a tool for Internet service clients billing (Perl/C++/PostgreeSQL, IP netflow daemon and web scripts).

• North-Kazakhstan State University
  (Computer Science Department)

  System Administrator (Part Time), Sep/1996 - Jan/1998

  Performed routine maintenance of 30-40 computers.

  Supervised students' work in a computer class.

Education and other details

• North-Kazakhstan State University. Majored in mathematics and computer science, graduated in 1998 with honors (GPA 3.9)

  Teaching Experience: High school teacher of mathematics and computer science (as part of pedagogical training), Oct-Nov/1997 and Feb-Apr/1998

  Undergraduate Admission Committee Secretary, 1997, Department of Information Technologies

  Thesis paper "Fuzzy Sets and Expert Systems in Education," 1998

  Member of Bachelor Thesises Examination Committee, 2000, Department of Computer Science

• Conferences, workshops, and seminars attendee

  Intro to data science with R training, January 2014 (Boston MA)

  Surge (scalability and engineering), September 2011, 2012, 2013 and 2014 (Baltimore, National Harbor, MD)

  Oscon, July 2011, 2012, 2013 and 2014 (Portland, OR)

  Mirantis OpenStack bootcamp, June 2013 (Boston, MA)

  IETF 86 meeting, March 2012 (Orlando, FL)

  ICANN 45, October 2012 (Toronto, ON)

  Velocity Santa Clara, June 2010 and 2012

  Strata Santa Clara, February 2012

  Puppet Camp Boston, June 2012

  Pittsburgh Perl Workshop, October 2011

  Cassandra NYC, December 2011

  MongoDB Boston, October 2011

  AMA's Management Skills for New Managers, April 2010 (Boston MA)

  Interop NYC, December 2009

  An Event Apart Boston, June 2009

  Edward Tufte's Presenting Data and Information, March 2008 (Boston, MA)

• Affiliations

  Professional Member of ACM (Association for Computing Machinery) since 2012

  Occasional participant in IETF (Internet Engineering Task Force) activities

• Things that help my brain to stay flexible

  I enjoy riding road bike in summer and snowboard in winter. I like playing tennis and ping-pong when I can.

  My house is a story of what we did to it ourselves, from the small improvements to landscaping (and falling large trees).

  I love my wife and kids very much and there is no better time than those hours when we are all together.

alexsergeyev.com » systems and data engineer, go developer resume
updated Oct/2016