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Joined through the Acquisition from Verys, LLC.(Jan 2024 – Apr 2024) Working on the internal Project • Responsibilities: ◦ Building and maintaining Backend Service in C#; • Stack: Azure; C#, RESTful; MSSQL; GitHub; Confluence, Jira;(Mar 2023 — Dec 2023) As a Consultant to Epicor Software, LLC I designed and developed a Backend Service, that worked as a Middleman between a Mobile Client and a Point-of-Sale (Ingenico Pinpad, Zebra Android, etc) Device.The Communication happened via Websockets (WS) Protocol, and the Service has implemented both WS Server and WS Client Behavior in One. The current State of the Transactions and/or Devices was maintained using State Machine. • Responsibilities: ◦ Building and maintaining Backend Service in Python; ◦ Extensive Use of Websockets (Client / Server), RESTful; ◦ Writing Integration and Unit Tests; • Stack: AWS; Python/Django; Websockets, RESTful; State Machines; PostgreSQL; Redis; Docker, GitLab, Jira; pytest/unittest;(Jan 2022 — Dec 2022) As a Consultant to ZeniMax Media, Inc. I designed, developed and maintained various Content Management and Delivery Services, used by the Game Clients like “Doom”, “Quake”, “Wolfenstein”, “Starfield”, etc., including User-generated Content (Mods) Service, used by the World-famous Franchises “Fallout” and “Skyrim” (“The Elder Scrolls”). • Responsibilities: ◦ Building and maintaining Backend Services in GoLang; ◦ Documenting and sharing the Knowledge with Engineers and Leads during the "Lunch and Learn" Sessions; ◦ On-boarding and mentoring new Team Members; ◦ Extensive Use of AWS, RESTful, gRPC; ◦ Writing Load/Performance, Integration and Unit Tests; • Stack: AWS; GoLang; RESTful, gRPC; MySQL, PostgreSQL, Redis, Memcached; Nginx, Docker, NewRelic, GitHub, Confluence, Jira, Contentful; Locust, httpexpect, pytest/unittest;

As a Consultant to ZeniMax Media, Inc. I designed, developed and maintained various Content Management and Delivery Services, used by the Game Clients like “Doom”, “Quake”, “Wolfenstein”, “Starfield”, etc., including User-generated Content (Mods) Service, used by the World-famous Franchises “Fallout” and “Skyrim” (“The Elder Scrolls”). • Responsibilities: ◦ Building and maintaining Backend Services in Python, GoLang; ◦ Migrating Python 2.7 Backend Services to Python 3.7; ◦ Migrating Python Backend Services to GoLang; ◦ Documenting and sharing the Knowledge with Engineers and Leads during the "Lunch and Learn" Sessions; ◦ On-boarding and mentoring new Team Members; ◦ Extensive Use of AWS, RESTful, gRPC; ◦ Writing Load/Performance, Integration and Unit Tests; • Stack: AWS; Python, GoLang; RESTful, gRPC; MySQL, PostgreSQL; Redis, Memcached; RabbitMQ, Nginx, Docker, NewRelic, GitHub, Confluence, Jira, Contentful; Locust, httpexpect, pytest/unittest;

The Mission of GravityBrands is to create and launch well-loved Brands, and connect the with a vast Audience.The proprietary Flagship Brand, Fragrant Jewels, has over 100 Employees creating engaging Content and leveraging Real-Time Analytics to deliver an awesome User Experience for the Customers. • Responsibilities: ◦ Designed and developed:(I) eCommerce Platform, using Shopify (as a CMS), and the Payment Processors (e.g. Stripe);(II) Loyalty Engine for the Rewards Program (including Points, Bonuses and Subscriptions);(III) RESTful API for the React/Redux based Front-end; ◦ Created Gateways to the Shopify, Stripe, BrainTree, Spreedly, and Recurly API; ◦ Migrated Data (saved CC Payment Methods) among the Payment Processors; ◦ Customized Django Admin for the Needs of the Product Development Team; ◦ Writing Automation and Unit Tests; • Stack: Heroku; Python/Django; jQuery, JavaScript, Riot JS, React/Redux; RESTful API; Selenium, pytest/unittest;

The Company provides sophisticated economic, statistical, and financial Analyses, Business Operations Advice, and specialized Software Solutions to leading Law Firms, Fortune 500 Companies, and Government Agencies. • Responsibilities: ◦ Developed the Web Application “ResolutionView”, where the Client could: (I) create Employees’ Profiles and enroll them to the Facial Recognition Engine (“Kairos”) Database;(II) add Facilities; review the Analytics; and(III) check the Time-keeping System Clock-Ins/Outs against the Snapshots, taken from the local IP and/or Web Cameras. ◦ Developed the Desktop Application, designed to: (I) take the Snapshots from the IP and/or Web Cameras Video Stream; (II) perform preliminary Face Detection; and (III) send the appropriate Snapshots to the Kairos API for further Facial Recognition. Supported Platforms are Windows, Linux, Mac OS X. ◦ Developed the API Gateway to the Facial Recognition Engine (“Kairos”), and to “ResolutionView” interim API Server, used by the Desktop Application. ◦ Reviewed Developers Team’s Source Code. ◦ Held the technical Meetings with Partners from “Kairos”. ◦ Writing Automation, Integration and Unit Tests; • Stack: AWS; Django/Python/Cython; PyQt, OpenCV; Selenium, pytest/unittest;

Fuisz patented a Technology for creating intuitive, interactive Experiences for any Video, new or existing. • Responsibilities: ◦ Developed/maintained Web Applications; ◦ Worked on interactive Layer, and internal Tools, like SmartSheet + GitHub Integration, Slack + GitHub Integration, etc; ◦ Developed automated Process for creating MRAID compliant HTML5 Tags and Google Engagement Ads (GEA Lightbox); ◦ Developed Command Line Tool for transferring Projects’ Data between Environments (AWS S3 Buckets and Databases) and invalidating AWS CloudFront Objects; ◦ Created native Android App for testing the MRAID Tags. • Stack: AWS; JavaScript (Node.js); MongoDB;

Next-generation digital platform for Real Estate. Building the first master-planned community that fully integrates smart contracts and NFTs. • Responsibilities: ◦ Totally reworked Website Design; ◦ Developed/maintained Web Applications. • Stack: Django/Python; Twitter Bootstrap, jQuery, LessCSS.

Dream World Partners is a Multimedia, Digital Services Company. Specializes in a variety of Services, including Web Development, Digital Marketing, SEO, Social Media Marketing, and Customer. • Responsibilities: ◦ Developed/maintained Web Applications and Front-end Design; ◦ Created Admin Dashboard with Charts on the Website Usage, average Length and Number of Users in the Video/Text Chat; ◦ Fixed Issues with Text/Video Chat, Payment System, mailing; ◦ Writing Automation and Unit Tests; • Stack: Django/Python; RESTful; HTML, CSS, jQuery, JavaScript, node.js; Apache, PostgreSQL; Selenium, pytest/unittest;

– Created Python application for speed-test of different types of DBCS.– Developed/maintained web-application for project managing needs.– Developed/maintained project for Google Translation Tool (GTT).– Created/maintained HTML layout and design using HTML, CSS, jQuery, JavaScript.– Created unit-tests.– Used AJAX, REST API between different web-applications.– Deployed projects using Git +AWS + Ubuntu + Apache + MySQL/PostgreSQL

– Simulation of emergency processes at existing power units of nuclear power plants (NPP) of Ukraine by means of computational codes RELAP/SCDAP and MELCOR.– Probabilistic safety analysis (PSA) of existing NPP power units of Ukraine.Supporting of works:– As part of the Memorandum between Ukraine and the European Union about mutual understanding, concerning to cooperation in energy industry;– Assessment of NPP design safety as part of joint EC-IAEA-Ukraine project;– Enhancement of NPP design safety.– Development of organizational and administrative documentation.– Preparation of reports concerning safety enhancement.– Problems of NPP seismic safety.– Contractual activity.– Interaction with regulation authorities on nuclear and radiation safety.– Maintenance of international programs on experience exchange of NPP operating.

– Developed/maintained web-applications (http://youthmonument.com, http://filterfoundry.com, http://gigit.com) using Django/Python, Ruby on Rails.– Designed database.– Created/maintained HTML layout and design using HTML, CSS, jQuery, JavaScript.– Created unit-tests.– Used AJAX, REST API.

– Implementation of PSA for oil and gas refineries.– Assistance for development of Declarations for objects of high risk.