Designed and built the machine learning platform powering several product recommendations services across different verticals (fashion, furniture, art, sports): - Content Understanding: Integrated multiple AI models to extract image and text features, improve existing product attributes and create brand new ones using Generative AI models and combine them with user preferences, user behavior and purchase history (Go, Python, CPU/GPU TensorFlow, Transformers, AWS). - Analytics Platform: built a platform for understanding the way users interact with the client’s website and Visii’s product recommendations to run and analyze A/B tests in order to offer real-time personalized recommendations (Go, PostgreSQL). - User Facing Services: designed frontend applications to easily review and assess recommendations, compare model accuracy, inspect analytics results, improve product metadata, generate marketing tags for Ads platforms. - The services were exposed through public APIs and deployed in a very cost efficient way across a high availability infrastructure on AWS (EC2, RDS, S3, SQS, Cloudfront, etc.).In charge of all client integrations (across US, UK, EU, ME), starting from identifying and analyzing client needs to offering customized solutions with partial or complete implementations.Hired, upskilled and led a small and focused team through the launch of several AI based products.Refs: www.visii.com, docs.visii.com.

Designed and implemented scalable pipelines for extracting image feature vectors for Visii's patented visual exploration service for large image sets, using Go (golang) and Python on AWS (EC2, SQS, S3, RDS).Built and managed the AWS infrastructure using CloudFormation, Terraform, custom AMIs and deployed microservices for Visii’s public APIs on EC2 (Docker, Ansible, Packer, Rundeck, Jenkins).Implemented lightweight frontend recommendations widgets and a Shopify app to reduce the barrier to entry and speed up adoption of Visii’s solutions (NodeJS, Javascript).Responsible for the full development cycle of public APIs, and for the infrastructure scalability and resilience.Managed a team of contractor developers for building frontend applications for our B2B clients.Refs: www.visii.com

Part of a new agile team in charge of Geolocation, Tracking and SEO aspects, working on all ventures of the Gamesys group: Jackpotjoy, Virgin Games, Tropicana Casino and others.Enhanced the geolocation module to improve detection and decide if the user is authorized to play.Implemented new gaming regulatory changes that affected the registration process and terms and conditions for the company’s UK ventures.Technologies and tools used: Java, Tapestry, Dropwizard, JavaScript, HTML, CSS, JIRA, Confluence.

RAIN - scalable NodeJS platform for distributed rendering of loosely coupled web componentsLed an agile team of 6 engineers and actively participated in the design and implementation of RAIN.Implemented dev and operations tools, configured the initial production cluster and transitioned live instances to Operations department under strict SLAs, while conforming to internal security regulations.Coordinated RAIN adoption within core company products (domains registration, web hosting) facilitating the development of components by developers in distributed team across Romania, Germany and UK, impacting millions of users.SSL - infrastructure for reselling third party SSL certificates to 1&1 hosting customersIn charge of the technical takeover of an existing solution from another team and tasked to design a solution that will make 1&1 a player in the market.Persuaded third party vendors to co-fund the development of the new project. The new solution was modeled using BPM technologies and made available to partners through public APIs. The implementation used Java, Spring, Hibernate, PostgreSQL and RAIN.

RAIN (github.com/rainjs/rainjs) is a highly scalable open-source frontend platform that orchestrates distributed rendering of loosely coupled components. RAIN enables developers to focus on their core competence by providing simple feature reusage and tooling.Participated in the design and implementation of a distributed rendering architecture and developed web components for both the client and server side.Developed as a side project a plugin for Eclipse that used the RAIN SDK commands for creating projects and components, generating translation files, starting and stopping the server.Technologies used: NodeJS, JavaScript, HTML5, CSS3, Git, MongoDB, Socket.IO, Jasmine, Websockets, JSCoverage, Jenkins CI, Eclipse, JIRA, HAProxy, Stunnel.

Erbix is a PaaS for development and hosting of server-side JavaScript applications. The platform allows developers to write web applications using an online editor and included integrations with third party APIs, SVN, Git, OpenID, Facebook and PayPal.Developed a marketplace where developers could publish their applications and users could install them. Wrote JavaScript applications for creating online forms, managing projects, scheduling events, blogs.The platform was developed using Java, Spring, JUnit, Mozilla Rhino, RingoJS, PostgreSQL, Tomcat and the example applications were written in JavaScript, HTML and CSS.

Development Gateway is a non-profit organization that delivers information solutions to the people on the front lines of international development work.Responsible for the continuing development and maintenance of dgmarket.com (multi-site, multi-language web application that offers subscriptions to worldwide government procurements). In charge of aggregating procurements from multiple sources with different formats.The application was developed using Java, Spring, Struts, Hibernate, Oracle, HTML, CSS. Other tools and services used: JBoss, Tomcat, JIRA, Bamboo.Refs: www.developmentgateway.org, www.dgmarket.com.

Participated in the development of a revolutionary software for on-site United States casinos (board and floor management, player tracking, tournament registration, revenue reporting).Developed a software licensing and anti-piracy solution for ISIS M3 products.Technologies used: C#, ASP.NET, VB.NET, MSSQL.Refs: www.itcasinosolutions.com

Developed a Java application that generates automatic testing modules for embedded applications.Technologies used: Java, Eclipse Modeling Framework, UML.