I am worked on web-based game engine for playable ads at lunalabs.io.Luna game engine - it is a lightweight runtime for Unity projects on Web.Product includes game engine, Unity plugin and web platform to produce playable ads.My responsibilities were:* Implementing features for game engine * Porting Unity built-in components * Rendering Sorting system * C# to JS code transpilation * 3D Phisycs * Rendering* Profiling and optimizing features for game engine * Optimization of animator component for keyframe animation about 30% on target device * Optimization of animator component for skeleton animations about 25% on target device * Both optimizations were based on algorithm improvements as well as rewritting code in more cache-friendly way and using bleeding edge technologies such as WASM* Adapting third-party solutions (both C# and JS) to integrate them in engine * Adapting of existing Unity packages (e.x. Spine) to make it work in engine* Leading of C# to JS transpilation subsystem * Shipping features for custom compiler * Creation of tooling to improve development processes * Setting up CI/CD and automated tests* Implementing features for packaging system* Creating tools for work automation* Setting up of CI* Setting up and gathering data for analytics * From implementing data gathering in plugin code * Up to setting up complex data referencing systems in analytics platform (Looker)* Managing of localization process * Managing translation processes * Shipping localization artefacts * Developing of automated localization solution for CI (not shipped)My achievements:* As lead developer of custom compilation subsystem I have added support for new C# features (subset of C# 7.3 - 9.0 features)* Setting up CI and automation to improve working processes* Porting inner tools from Bash to JS as lead developer * Architecture and system desing * Developing * Shipping * Support

Worked on various B2B internal systems for USA Top-5 payment processor.- Device management systemAllowed company clients to order and swap equipment for their businesses.Stack:Ember.js + Node.js- Scoring system to estimate how secure is to work with specific clientAllowed company to find evidences of fraud and unwanted client activity.Stack:Ember.js + Node.js + AWS- Sales portalAllowed company to get new clients, guide them through initial steps of paperwork, document signing and other formal activities.Stack:CoffeeScript + RoR + AWS- DataHub system redesignCentralized gate for other systems to enforce security of Data Layer and easy to use API.Stack:.NET + Node.js + AWS