Gerald Kalafut work email
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Gerald Kalafut personal email
Actively looking for full-time or contract-to-hire work either remotely or hybrid in the greater Phoenix area. Experienced back-end developer with a proven history of delivering reliable, scalable, highly available, low latency services. I'm a programming polyglot, and take to new languages & technologies like a duck to water. I excel at creating custom internal end-to-end applications, and software archaeology/refactoring of weird environments.
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Senior Python EngineerKunaiPhoenix, Az, Us -
Senior Software EngineerLittlebird (A Levelup Product) Feb 2024 - Nov 2024Phoenix, Arizona, Us* Worked on Apple Wallet authorization for granting door access.* Altered user-facing React application to accept US phone numbers (in the US) while storing as I18N.* Created management API that accessed backend API over gRPC to generate software access keys. -
Senior Software EngineerAerialsphere Jun 2021 - Sep 2023Phoenix, Az, Us* Maintained and extended a TypeScript / NodeJS / React / Redux / Three graphic front-end alongside a Python / Django / PostgreSQL (PostGIS) back-end and API.* Worked with a small team on rapid building of a new customer facing product.* Lead restructuring of the front-end to eliminate unnecessary React re-rendering.* Added subscription functionality for customer billing.* Created AWS SQS Lambdas to help offline importing of geographic data, removing significant spiking traffic from both the API back-end and front-end.* Managed an AWS / BitBucket / Docker / Sonarcloud CI/CD stack in a start up environment. -
Senior Software Engineer, ObservabilityPaypal Mar 2018 - Apr 2021San Jose, Ca, Us* Senior resource, trainer, and SME for two remote outsourced developer teams.* Added Oracle multi-tenant support to homegrown database monitoring pipeline.* Drove efforts to decommission 2 on-prem data-centers and build out 3 new GCP cloud zones.* Maintained and continued development of OpenTSDB based metrics reporting system while helping POC’d potential replacements for it: DataDog, Splunk, & SignalFX. -
Senior Software Engineer, MonitoringPaypal Feb 2016 - Feb 2018San Jose, Ca, Us* Created real-time metric pipeline with sub-second latency using BabelJS and ZeroMQ.* Revamped an Oracle query verifying & executing React app, enhanced the SQL parser, and seamlessly integrated Redux.* Created NodeJS / Express REST interface for accepting, aggregating, and filtering metrics.* Created JavaScript GUI for host metric presentation and Python REST APIs for querying.* Setup cross-zone data center clusters with ETCd for distributed configuration and control.* Used Puppet and Ansible to automate installation and upgrades of internal software packages.
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Senior Software Engineer, ToolsPaypal Jan 2012 - Jan 2016San Jose, Ca, Us* Created critical multi-platform data collector for gathering database metrics. (Aerospike, Cassandra, Couchbase, MongoDB, MySQL, Oracle, Redhat, Ubuntu, Solaris.)* Created multiple custom GUIs for database metric presentation, DNS change monitoring, and a dashboard ticketing system with Perl and/or JavaScript.* Integrated remote execution infrastructure with ticketing to distribute developer artifacts.* Rewrote an critical database connection cache state log monitor using Python and ActiveMQ.* Overhauled application logging bus listener and helped integrate with dynamic tracing service.
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Senior Systems EngineerEbay Aug 2005 - Jan 2012San Jose, Ca, Us* Troubleshooted and maintained Windows, Red Hat, Ubuntu, and Solaris UNIX servers.* Automated remote execution tasks, load balancer changes, and post-maintenance site restarts.* Created Perl CGI scripts for identifying potential attackers on load balancers.* Created multi-platform scripts for automating remote execution tasks. -
Technical Duty OfficerEbay 2007 - Feb 2010San Jose, Ca, Us* Technical crisis leader responsible for identifying, triaging, investigating, mitigating, resolving, recovering and reporting events impacting eBay's worldwide site availability, performance, security and/or functionality.* Drove multiple teams on our crisis bridges toward quick resolution of issues.* Directed & provided pro-active risk-planning feedback for major weekly site maintenance, test runs of Business Continuity procedures (BCP), and major site Disaster Recovery (DR) plans.* Created internal suggestion box application using Ruby on Rails.* Mentored & trained personal on IT/Operations subject matter & best practices.
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Programmer IiiProquest 2000 - 2005Ann Arbor, Mi, Us* Designed and implemented a generic document conversion pipeline end-to-end.* Assumed control of a newspaper indexing project that was months behind schedule and expected to fail, orchestrating a successful turnaround to meet the original schedule.* Team leader for porting and replacing legacy newspaper search product.* Maintained and extended a newspaper aggregation system and multi-media software acquired from another company.
Gerald Kalafut Skills
Gerald Kalafut Education Details
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Eastern Michigan UniversityComputer Science & Mathematics -
Eastern Michigan UniversityComputer Science And Mathematics
Frequently Asked Questions about Gerald Kalafut
What company does Gerald Kalafut work for?
Gerald Kalafut works for Kunai
What is Gerald Kalafut's role at the current company?
Gerald Kalafut's current role is Senior Python Engineer.
What is Gerald Kalafut's email address?
Gerald Kalafut's email address is gk****@****pal.com
What schools did Gerald Kalafut attend?
Gerald Kalafut attended Eastern Michigan University, Eastern Michigan University.
What skills is Gerald Kalafut known for?
Gerald Kalafut has skills like Ruby On Rails, Rvm, Rspec, Sinatra, Tivoli, F5 Bigip, Netapp, Debian/ubuntu, Red Hat Linux, Solaris Zones, Mysql, Postgresql.
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