Platform for connecting home service professionals with people and businesses providing a smooth experience for getting jobs done. Ongoing contract as a senior NativeScript/Angular developer, working in a team. Main responsibilities:• building new features using NativeScript + Angular;• designing and supporting multiple mobile apps architecture with a shared platform-agnostic core codebase using NX monorepo and xPlat;• implementing challenging features requiring native iOS/Android knowledge (using Swift/Kotlin or JS bridge to native APIs, wrapping in plugins);

Companion software product for Bluetooth-empowered jumping ropes. The whole product was built fully by myself from scratch: mobile apps, backend, web admin and required infrastructure.Main responsibilities:• setting up and supporting infrastructure on AWS (EC2, RDS, S3, SES);• building REST API for mobile apps and web admin for managing users, payments, workouts etc. (Ruby on Rails) + Shopify integration;• building mobile apps (NativeScript + Angular);• service stability and health monitoring (Grafana, Telegraf, Sentry);

Platform for connecting freelancers from creative industries with opportunities.The whole product was built fully by myself from scratch: web platform, mobile apps, backend and required infrastructure.Main responsibilities:• building web platform (Angular) with E2E testing (Selenium) and CI (TeamCity);• managing product requirements, tasks and issues in conjunction with CI;• developing backend for web and mobile apps (Ruby on Rails);

Own IT company built from the ground-up with no investments from 3rd parties. Initial focus was on developing native mobile apps for iOS and Android, but eventually it evolved into providing a full range of services usually required for a mobile product: gathering requirements, creating UI/UX, building backend/API, promo web site or a web version of the product. All development and delivery stages were accompanied by QA and followed by further support in product launch and promotion.Main responsibilities:• creating an effective company growth strategy;• developing relationships with new clients;• recruiting employees and building a team;• managing development, quality assurance and delivery processes;• making clients and employees happy;

The core project of the company M2Active™ is a proprietary solution for cross-platform mobile app development (iOS/Android/BlackBerry/Windows Phone).Main responsibilities:• building core platform components;• covering platform components with E2E tests;• writing API documentation;Noteworthy projects (built natively):• Rabobank: mobile banking for the most popular bank in the Netherlands. (allows to manage accounts, view balances, payments and make transactions); • UPC: mobile app for UPC Digital TV Subscribers (allows to set recordings and reminders on DVR remotely, view program guide, TV tips and VODs);• Ajax Mobile: mobile app for Ajax football club (latest news, matches & players information, videos and other useful information about the club);

Fully functional office suite for mobile devices.Built from scratch a spreadsheet viewer/editor for Windows Mobile with support for native Excel files (97-2007, *.xls/*.xlsx parsing). After the first beta release of iOS SDK in early 2008 ported it to iOS. Afterwards, led the whole iOS team and was involved in development of cross-platform core engine of the whole suite.Main responsibilities:• building new features for iOS version of the suite;• leading iOS team from technical and management perspectives;• cross-team communication;

Building software for a wide range of embedded systems, mainly for controlling AC/DC motors, within hardware solutions for industrial automation.Noteworthy projects (built fully by myself):• control system for shaft winders: multiprocessor embedded system which controls a DC motor (includes software for DSP, software for operator control panel and software for desktop which provides real-time control and data visualization);• control system for oil pump rocker-machines: based on mathematic model of rocker-machine allows to improve petroleum production process;