Costin Florea
Development
Masovian Voivodeship, Poland
Skills
React.js
About
COSTIN FLOREA's skills align with Programmers (Information and Communication Technology). COSTIN also has skills associated with Web Professionals (Information and Communication Technology). COSTIN FLOREA has 6 years of work experience.
Work Experience
Senior Full Stack Developer
Tenet Healthcare
May 2022 - May 2024
- United States Healthcare IT Consulting • Developed an ASP.NET Core MVC architecture to enhance application performance, rendering views based on category, reducing in a 40% reduction in page load time and improved user experience. • Upgraded from .NET 6 to .NET 7 and optimized performance. • Optimized the ASP.NET Core 6 Web UI--removed redundant code and enhanced partial view usage. • Implemented a micro-front-end architecture. Pages were moved from the web forms application to Angular with a microservice REST API in stages while maintaining a single application feel and consistent styling. • Engineered a responsive single-page application ՄSPAՅ using JavaScript, React, ASP.NET Core, and Azure Cosmos DB, enhancing user interaction and satisfaction. • Designed and implemented scalable front-end architectures for a large-scale React application, enhancing component reusability. • Elevated application reliability and reduced post-deployment bugs by 40% by integrating automated testing and QA into the Azure DevOps pipeline. • Worked with CI/CD pipeline tools such as Git, Jira, GitLab, Jenkins, Docker and Kubernetes. • Orchestrated the frontend migration of a SaaS platform from Angular to React, crafting and leveraging RESTful APIs and GraphQL with Node.js and ASP.NET Core backend. • Led a team of five developers, provided technical advice to external teams within the company on .NET-based API designs, and mentored junior developers. Software Engineer *instinctools
International Software Engineering Company
March 2020 - March 2022
- United Kingdom International Software Engineering Company • Established ASP.NET Core API services that works as a middleware between the application and third party APIs resulting in a 25% reduction in response time in overall system performance. • Led the transition to a component-based and micro-frontend structural design through strategic use of Next.js and TypeScript. • Built a live result-tracking hybrid application using NestJS and Firebase. • Ensured synchronous communication based micro-services using NestJS, and Apache Kafka. • Developed a user notification service and designed a preferences model which allowed individual customers to create notification lists and configure how they want to be notified. • Developed Node.js microservices for processing B2B financial transactions using RabbitMQ and Azure message bus to process messages. • Designed a new Azure landing zone architecture putting into consideration the network, compute and other Azure Cloud Adoption Framework principles and deployed Azure resources.
Full Stack Developer
GLOBALDEV
February 2018 - February 2020
- Poland Certified IT Development Company • Utilized HTML, CSS, and JavaScript to create 100֡ responsive landing pages for both Company and client. • Created a secure, scalable web application with C#, ASP.NET, and AJAX. The web application was required to handle 10,000s of users. • Employed the React Hooks to amplify both user and developer experience by generating testable functional components. • Coordinated closely with the QA Engineers, ensuring applications undergo strict testing and devoid of critical issues before production. • Expanded and improved a WinForms application that synchronized data via message queues to a hosted web application. • Thrive in a collaborative, remote-first work culture where teamwork, camaraderie, and being Together Everywhere are key. • Have a strong focus on Quality of Coding through Best Practices, Testing, Logging and Metrics.
Education
