Stripe is building Global Payments and Treasury Network (GPTN) and I am at the very core of it. I built several payment provider integrations including bank credit transfer with a bank in Europe and credit card clearing acknowledgement pipeline with card network in Asia.

I was asked to help build the backend for this innovative legal budgeting application. The frontend is a React/Redux and the backend was a Node/Sails, but we ported it to Rails. Sails just had too many shortcomings compared to Rails. We made this transition transparent by adding a proxy to Rails and then gradually intercepting more and more calls as we kept porting them. It was originally deployed to AWS Beanstalk and we kept it that way.

Razer acquired OUYA for a number of reasons. One of them was our App Store. The company was in the process of building its own gaming console - ForgeTV and our Game Launcher and App Store were a perfect fit. We ported our code. Had to integrate with a number of internal Razer services. We kept using the same technology stack as it worked perfectly for us.Sadly both OUYA and ForgeTV projects got canceled and our Rails infrastructure got wound down.

When I was hired as a lead server engineer my responsibility was simple ‘Build an App Store’. OUYA was a successful Kickstarter campaign for an Android based TV gaming console. And like any other modern smart device it needed a server backend.We launched in Jun 2013 and immediately had another challenge on our hands: scaling. Consoles were selling like hotcakes and we had a very rapid server load ramp-up which was exacerbated by our quickly increasing games library and a steady addition of new features. We started fine-tuning our architecture with performance optimizations (SQL and code level), multilevel caching (Memoization, Redis, HTTP, CDN), autoscaling (HireFire), message queueing (Sidekiq) and other tricks. We were serving upwards of 200,000 consoles, ~10,000 RPM and still staying within our self-imposed 50 ms response time limit on most of our API calls.There’s been a number of other challenges during the following years: various integrations (WorldPay, BrainTree, InComm, NetSuite), new back-office tools, more apis, more personalization, more analytics. We were acquired by Razer in 2015 where I continued developing App Store.

Fundly is the only integrated platform for social impact that delivers a seamless end-to-end experience for both organizations and individuals to successfully manage and promote their causes. Fundly has been a market leader in crowdfunding and peer-to-peer fundraising, and combined with NonProfitEasy, now offers enterprise-level technology for CRM, volunteer management, membership management, and event registration at a fraction of the price of competing end-to-end platforms.Lead development of next generation social fundraising platform:- established agile dev process: continuous integration/deployment, staging server, sprints, uniform and repeatable dev environments- migrated Python/Tornado/Cassandra platform to RoR/MySQL- set up AWS based infrastructure: ec2, elastic cache/ip, rds.

CNE Media is a respected industry leader at the forefront of cutting-edge online content delivery technology and targeted, cross-platform marketing campaigns. Engineering: video production company backend design and development: workflow, ERP, content processing, CDN/billing integration, affiliate system, fraud prevention, analytics, reporting.Operations: tools development and support, deployments, mysql performance tuning and optimization (load balancing, replication).