EXPERIENCE
• Platform Developer Experience, infrastructure and tooling of: core SDK, desktop, mobile and web clients.
• Deploying Bazel for monorepos, spearheading Gazelle adoption initiative.
Assisted in the growth initiatives of this US-based startup by developing backend and data projects to acquire new customers.
• Implemented a platform-wide pseudonymization system (EU data privacy regulations).
• Created new data connectors: Google Chat, Google Meet, Microsoft OneDrive, Microsoft Teams, Salesforce, Zoom.
• Optimized and improved existing data connectors: Atlassian Confluence, Atlassian Jira, Cisco Jabber, Dropbox, Google Drive.
• Led purchase flow unification project and team: Consolidated all 5 checkout systems into a single one. Improved its reliability and monitoring, increased signal-to-noise ratio by 1000x, and ended with an error-free, fully documented and tested single system.
• Built a high-load checkout service backend.
• Improved legacy services: Python 2 to 3 migrations, containerization, missing and improved CI workflows.
• Spearheaded cross-functional MVP of internal services contract testing tool.
• Assisted engineering a highly scalable microservices SaaS platform, capable of generating up to 200,000 videos/hour.
• Led full-stack team that successfully built and released: web application, public API, mailing & notifications, user accounts, video distribution.
• Engineered scalability rewrites and optimizations: batching, chunking, multi-GB file uploads.
• Built features such as multi-user accounts and LDAP connectors for OpenLDAP and ActiveDirectory, to obtain enterprise customers.
• Implemented new import formats and connectors: ArcGIS, Box, Dropbox, GDrive, GeoTIFF, Instagram, Twitter GNIP.
• Rewritten code and migrated data of website and CMS, to introduce new features and ease future maintenance and development of new features.
• Engineered an asynchronous, job-based user avatar generator, creating +100,000 avatars/month, dramatically increasing user engagement in the platform.
• Built a user avatar items store and multiple payment methods, providing extra revenue sources.
Executed multiple full-stack projects in this social network and messaging platform, at its peak with +15M users, millions of daily chat messages and spikes of 35,000 requests per second.
• Developed and assisted in creating features such as: Home user feed, notifications system, multi-search, friend importers (GMail, Outlook, MSN Messenger, Yahoo), user groups and user pages, full rewrite of the chat client, group chat.
• Orchestrated and improved the mobile website, and mobile apps support tools such as updates delivery backend.
• Built desktop, PDA, TabletPC and web applications such as: e-learning platform, airport passenger boarding bridge software, conversational bots.
• Research and Development of indoor routing algorithms at NAVTEQ: Optimal paths, step-by-step instructions. Achieved sub-second results and 20x less memory footprint.
• Devised and company-wide introduced a .NET Continuous Integration server to test, build and package Windows desktop and tablet applications at a medium-size IT company.
EDUCATION
Part-time enrolment alongside full-time employment; studies discontinued.
Part-time enrolment alongside full-time employment; studies discontinued.
PROJECTS & OPEN SOURCE
• Technical blog: https://blog.kartones.net
• GitHub: https://github.com/kartones
• Past speaker at Conferences and Meetups: https://slides.kartones.net