Alexandr Negrea

Architected and led the development of healthcare-focused web and mobile applications, collaborating with cross-functional teams to deliver innovative solutions. Developed responsive, user-centric interfaces for web and mobile using micro frontends, increasing user engagement by 30%. Improved accessibility and load times by optimizing frontend architecture, resulting in a 25% performance improvement. Built and maintained RESTful and GraphQL APIs that integrate with HL7/FHIR-compliant systems for seamless EHR interoperability. Integrated OAuth 2.0, JWT, and multi-factor authentication to enhance security and ensure HIPAA compliance. Implemented unit and integration testing with Jest and Mocha, maintaining over 85% test coverage, and integrated tests into CI/CD pipelines. Led migration from monolithic systems to microservices, reducing system outages by 20%. Designed and optimized relational and NoSQL databases to improve query performance. Architected and deployed serverless microservic

Developed scalable retail solutions enhancing customer experience, inventory management, and sales operations. Created dynamic, responsive dashboards for seamless web and mobile shopping experiences. Led cloud migration of legacy retail ERP system to AWS serverless architecture, boosting availability to 99.99% and cutting operational costs by 25%. Developed and optimized B2B SaaS solutions integrating DocuGen for automated document generation, improving efficiency and compliance. Built customizable UI components for enterprise clients to streamline document creation and management. Designed APIs and microservices integrating DocuGen with CRM and ERP systems, ensuring GDPR and SOC 2 compliance. Led development and deployment of decentralized applications on Ethereum and Solana, enhancing blockchain transaction efficiency and user experience. Architected smart contracts automating financial transactions, reducing gas fees and improving security for DeFi applications. Collaborated cross-f

Contributed to development of web and mobile applications focused on maintainability and user experience for iGaming and e-commerce. Assisted in designing and integrating RESTful APIs, setting up unit testing, and CI/CD pipelines to maintain code quality. Supported migration of legacy apps to modern frameworks and optimized embedded JavaScript widgets for third-party sites. Implemented real-time communication features such as chat and push notifications, and helped develop web-based native mobile apps. Collaborated closely within the team to ensure smooth project delivery, applying strong communication and problem-solving skills.