Veaceslav Rabota

Project: HR & Immigration Platform (SaaS) - Global HR and immigration platform enabling companies to hire, relocate, and manage international employees with full legal compliance.

• Helped scale Deel Immigration into a product exceeding $50 million in ARR by delivering core product capabilities across a platform serving 70+ countries.
• Built and launched a self-service Digital Nomad Visa experience that generated more than $700,000 in new annual recurring revenue.
• Re-architected critical billing workflows, improving platform reliability and eliminating recurring operational bottlenecks.
• Introduced AI-powered development workflows that accelerated engineering execution and improved team efficiency.
• Increased automated test coverage from 20% to 85%, enabling faster and more reliable releases.
• Drove end-to-end delivery of high-impact product initiatives, collaborating across engineering, product, legal, and operations teams.

Project: Risk Portfolio Management Tool - for asset managers, hedge funds, and financial institutions, supporting investment analysis and risk monitoring.

• Built real-time portfolio risk dashboards that gave traders and analysts instant visibility into rapidly changing market data.
• Modernized the front-end architecture by migrating from Redux to React Query, reducing state-management boilerplate by 30%, accelerating feature development, and improving long-term maintainability.
• Established reusable UI patterns for data-intensive applications, enabling multiple engineering teams to deliver features more consistently.
• Improved product quality by increasing automated test coverage from 40% to 85%, cutting QA-reported bugs by nearly 50%.

Project: Telecom Microsoft Teams App Integration - Cloud-based telephony solution integrating full PSTN calling and business communication directly into Microsoft Teams, enabling hardware-free enterprise calling.

• Architected a serverless AWS back end (Lambda and DynamoDB, SQS) for in-app calling, replacing always-on infrastructure with pay-per-use compute and cutting hosting costs by 60%.
• Built the integration layer between Microsoft Teams APIs and the company's PSTN services, bringing in-app calling to thousands of end users.
• Designed an event-driven monitoring flow with SQS and Lambda that tracked call setup state and ran background checks for DNS propagation, keeping the process reliable without a human watching it.
• Built a React and Node.js self-service admin portal so customers could manage call routing and user settings themselves, cutting out routine support tickets.
• Built an interactive demo of the Teams telephony integration for the sales team to use when pitching enterprise prospects.