Hey there,I'm Tumee.

Migrated a legacy telecom Online Charging System (OCS) core to Go, refactoring critical API flows and data-migration pipelines to improve performance by 30%. Built e-law–compliant KYC (face-to-ID matching) that cut manual onboarding time by 40%, and shipped a multi-role admin platform for customer-facing operations.

Designed and launched a secure ticketing and payment platform that processed 5,000+ ticket sales through registration, validation, and access-control flows. Built and deployed a microservice architecture on DigitalOcean with automated CI/CD, and scaled full-stack features for a science discussion community.

Automated UI/UX testing for a production React Native banking app, cutting manual QA effort by 50% with reusable suites. Built native UI component libraries that accelerated mobile delivery across teams, and optimized internal microservices to resolve performance bottlenecks.

Implemented and validated APIs for the Insurance microservice, enabling faster provider data retrieval and verification. Strengthened Loan microservice stability with extensive unit tests that reduced regression risk in production releases.

Freelance React Native developer building responsive, user-friendly mobile interfaces, with a focus on performance on lower-end devices and improving day-to-day user engagement.