Java Developer | Technical Lead

Software Engineer and Technical Lead role across teams on analytics and backend projects.
 

Made the main business process smarter by implementing an AI solution for processing shopping receipts in real-time using Java, AWS, and in-house LLMOps resulting in new user experience.

• Achieved a 15x cost reduction compared to the previous vendor.
• Reduced delay from 20 seconds to 5 seconds and increased data quality drastically.
• Simplified the workload for manual reviewers, increasing approval rates by 20%.

Unblocked a project aimed to support user referrals and special Rabble offers; led the team of eight backend and frontend developers from defining the contract to deploying a Spring Boot service and feature release to users.

Led the Consumer Data & Analytics project along with the CEO and a pilot client, as project manager for the new team of five BI developers and data engineers behind this mvp utilizing (Python, Prefect cloud, BigQuery).

• Developed a shopping items classification across 93 product categories.
• Led the dashboard development with 30 metrics and filter modes/presentations.
• Onboarded an ex-head of data department level consultant to lead with product research.

Increased product maturity by solving issues in the Java application backend; caused a 90% reduction in alerts.

Software Engineer developing interactive solutions for client engagement and data processing.
 

• Led development of a customizable 3D virtual gift card, delivering a functional solution in 10 weeks using React.
• Built an SMS and email notification services using Google Cloud Functions and Mailchimp integration.
• Engineered a product data extraction service utilizing Python and machine learning libraries; conducted performance benchmarking that resulted in an accuracy improvement of 45% during testing phases.

Software Engineer in the Payments Team, developing backend components for new features and integrations.
 

• Developed key components of the state machine for the new instant payouts feature in the Payouts backend service (Spring, AWS). Added 5 new time zones of payout handling and mutual encryption setup for the JPM integration, essential for the US launch.
• Led cross-team dialogue to integrate with SFMC and solve a vendor payment transactions tagging issue.

Software Engineer Consultant focused on frontend and backend enhancements for AML systems.

• Led frontend development and backend refactoring for an AML system using AWS, Spring Boot, and React, optimizing workflows for KYC specialists.