Leo Romanovsky's Email Addresses & Phone Numbers

Software Engineer @ Ticketfly Joined a venture-funded event ticketing start-up as a backend software developer. During this time I made technical contributions to enhance Ticketly's infrastructure services. From September 2011 to March 2012 (7 months) San Francisco Bay AreaSenior Software Engineer @ Slack Scaling Data Infra and more! San Francisco Bay AreaSoftware Engineer @ Uber Shortened road...

Software Engineer @ Ticketfly Joined a venture-funded event ticketing start-up as a backend software developer. During this time I made technical contributions to enhance Ticketly's infrastructure services. From September 2011 to March 2012 (7 months) San Francisco Bay AreaSenior Software Engineer @ Slack Scaling Data Infra and more! San Francisco Bay AreaSoftware Engineer @ Uber Shortened road to Self-Driving vehicle being a reality.Domain expert in AWS software migration.* Self-service platform allows teams to define novel rules and query for data (i.e. locate all occurrences of unprotected left-turns in Pittsburgh) (GoLang, PostgresQL, AWS).* Coalesced duplicative efforts across the company into a centralized solution; allowed teams to focus on their core missions.* Achieved Executive Team buy-in by quickly delivered Proof of Concept for immediate value-add; team expanded from 2 to 6.* Coached best practices for developing Cloud (AWS) software to teams trained in data-center centric workflows. From May 2018 to February 2020 (1 year 10 months) San Francisco Bay AreaSenior Software Engineer @ Strava Platform and Data Teams* Team leader responsible for all aspects of services, from initial scoping and design, through implementation, deployment, monitoring, and support.* During this time, the company grew from 20,000 to 35 million customers.* Recognized as domain expert in Apache Cassandra and Spark.* Solidified user trust in the company’s most prized service with a redesign and implementation of the Segment Leaderboards. I lead rebuilding each infrastructure layer to readily scale, reduce support burden and delight customers. (Scala, Kafka, Cassandra, Redis)* Improved company’s data access and trust by architecting and leading the Petabyte-scale migration to the Snowflake data lake. (Spark, Snowflake).* GDPR data compliance; interacting with Management and Counsel.* Novel data products were launched every quarter to users after pioneering Apache Spark to the company. * Built tooling to enable experimentation, led weekly office hours, and lead numerous algorithm migrations.* Contributed to hiring with contributions to the Engineering blog and junior engineers’ daily mentoring.* Entrusted with upkeep of all production systems during 24/7 oncall.* Proactively proposed and achieved numerous scaling challenges including a business-critical Terabyte-scale geoindex which underpins Strava’s most valued services; as well as the Feed, the default landing property for all mobile and web visits. From January 2016 to May 2018 (2 years 5 months) San Francisco Bay AreaSoftware Engineer @ Cisco Systems Member of a development team that work closely with researchers and data scientists to deliver a real-time machine-learning driven anti-spam system.Served as a developer for a team that build a distributed data fetching, processing, and aggregating system, which served as the backbone to most other server-side processes. Apache Storm is the closest open source equivalent to this internal software. From September 2009 to September 2011 (2 years 1 month) San Francisco Bay AreaSoftware Engineer, Growth @ Strava Strava is the social network for athletes - an ecosystem of web and mobile software that provides a platform for friendly athletic competition and aims to improve users'​ quality of life through fitness and community.* Delivered many early features which were the nucleus of Strava’s growth: Performance Analytics, Discover Athletes (TypeScript, D3).* Pioneered use of Typescript at the company and lead adoption effort* Built early Feature Rollout and A/B experimentation frameworks allowing the company to rapidly iterate on their software offerings (Ruby).* Launching Photos backend service and guided integrations across web and mobile platforms after a demonstration MVP. Fast performance and low upload latency helped make it a core company feature. (Ruby, Ruby on Rails, Scala, Finagle) From March 2012 to December 2015 (3 years 10 months) San Francisco Bay Area