I am an enthusiastic and skilled full-stack engineer with over 12 years of experience building scalable web applications. I specialize in modern front-end frameworks like React, Next.js, Angular, and Vue, and have strong expertise in Python-based backend development using Django, Flask, and FastAPI. I'm passionate about designing RESTful APIs, integrating microservices, and deploying cloud-native applications. I enjoy delivering robust, user-focused solutions and thrive in fast-paced, agile environments where collaboration is key. Leveraging the latest tools and technologies, I continuously aim to improve efficiency and quality in my projects while ensuring an excellent user experience.

Mihai Alexandru Rosu

I am an enthusiastic and skilled full-stack engineer with over 12 years of experience building scalable web applications. I specialize in modern front-end frameworks like React, Next.js, Angular, and Vue, and have strong expertise in Python-based backend development using Django, Flask, and FastAPI. I'm passionate about designing RESTful APIs, integrating microservices, and deploying cloud-native applications. I enjoy delivering robust, user-focused solutions and thrive in fast-paced, agile environments where collaboration is key. Leveraging the latest tools and technologies, I continuously aim to improve efficiency and quality in my projects while ensuring an excellent user experience.

Available to hire

I am an enthusiastic and skilled full-stack engineer with over 12 years of experience building scalable web applications. I specialize in modern front-end frameworks like React, Next.js, Angular, and Vue, and have strong expertise in Python-based backend development using Django, Flask, and FastAPI. I’m passionate about designing RESTful APIs, integrating microservices, and deploying cloud-native applications.

I enjoy delivering robust, user-focused solutions and thrive in fast-paced, agile environments where collaboration is key. Leveraging the latest tools and technologies, I continuously aim to improve efficiency and quality in my projects while ensuring an excellent user experience.

See more

Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
See more

Language

English
Fluent
Romanian, Moldavian, Moldovan
Fluent
Polish
Advanced

Work Experience

Software Engineer - Team Lead at Plavno
April 1, 2021 - June 24, 2024
Engineered a modular banking automation platform using micro frontends and Java Spring Boot microservices, enabling domain-driven development and parallel team deployment. Developed secure RESTful APIs integrated with Angular 17 micro frontends. Built micro frontend architecture with Webpack Module Federation for independent deployment and dynamic module loading. Integrated Keycloak for SSO and role-based access control. Improved deployment efficiency through containerization with Docker and Nginx, and implemented asynchronous multithreaded communication using Kafka, increasing throughput by 35%. Collaborated with UI/UX designers to enhance user experience and satisfaction by 25%. Utilized Spring Cloud Gateway and Config Server for centralized routing and configuration. Designed automated banking document workflows, reducing manual handling by 50%. Leveraged GENAI and GitHub Copilot to reduce development time by 30%. Created and automated test cases using Jira and Playwright.
Freelance Consultant - Full Stack Engineer at Additiv
April 1, 2017 - March 31, 2021
Contributed to fintech web applications using Angular with NgRx for advanced state management and RxJS for reactive programming. Integrated JWT for secure authentication, implemented real-time communication with WebSocket, and established CI/CD pipelines with Jenkins and GitLab CI. Improved application performance via profiling and caching. Collaborated with UX/UI designers using Angular Material to increase user engagement by 15%. Integrated AWS services such as Lambda and ECS for serverless computing and container orchestration. Developed personalized chatbot systems using OpenAI language models, boosting sales by 25%. Enhanced web app functionality with Zoom and Grafana dashboard integration.
Full Stack Developer at Fortech
January 1, 2016 - April 30, 2017
Developed and maintained high-traffic websites using React.js, Java, Spring Boot, Hibernate, and MongoDB ensuring 99.9% uptime. Integrated third-party services including payment gateways and OpenAI APIs. Conducted code reviews and unit testing with Jasmine and Karma. Optimized platform performance via caching, SQL query optimization, Redis, and Kafka. Built automated testing suites using JUnit, Mockito, TestNG, and Log4j. Designed and developed resilient banking applications using JSON and HTML. Contributed to cloud infrastructure design leveraging Azure, AWS, GCP, Kubernetes. Innovated with Web3 and Rust in decentralized technology, Blockchain, and cryptocurrency. Managed project versions and servers through scripting and container orchestration.
Frontend Developer at Softvision
August 1, 2014 - December 31, 2015
Developed and maintained high-traffic e-commerce and healthcare SaaS platforms using AngularJS and Angular 5. Implemented RESTful APIs with PHP and Laravel for efficient data handling. Managed backend infrastructure with Terraform and tracked projects using Trello. Improved database performance with PostgreSQL optimizations. Participated in agile development including sprint planning and retrospectives. Conducted research to optimize MVC workflows and spearheaded projects with C#, ASP.NET, and .NET Core. Delivered cross-browser compatible, business-critical web applications.
Software Engineer - Team Lead at Plavno
April 1, 2021 - June 17, 2024
Led development of a modular banking automation platform using micro frontend architecture and Java Spring Boot microservices, enabling domain-driven development and parallel deployment. Developed secure RESTful APIs integrated with Angular 17 micro frontends and implemented dynamic module loading via Webpack Module Federation. Integrated Keycloak for SSO and role-based access control, containerized components with Docker, and enhanced system throughput by 35% using Kafka for asynchronous multithreaded communication. Collaborated with designers to create Angular components that improved user satisfaction by 25%. Utilized Spring Cloud Gateway and Config Server for centralized routing and configuration and implemented backend rule engines reducing manual processing time by 50%. Leveraged GENAI and GitHub Copilot to reduce development time by 30%, and automated testing processes with Playwright.
Freelance Consultant - Full Stack Engineer at Additiv
April 1, 2017 - March 31, 2021
Contributed to fintech web applications using Angular, incorporating advanced state management with NgRx and reactive programming with RxJS. Secured applications via JWT and integrated real-time communication with WebSocket. Established CI/CD pipelines automating testing, build, and deployments. Improved application performance with profiling and caching. Collaborated with UX/UI designers to boost user engagement by 15%. Utilized AWS Lambda and ECS for serverless and container orchestration. Developed AI-powered chatbot systems using ChatGPT and LangChain, increasing sales by 25%. Enhanced web app functionality through Zoom and Grafana integrations.
Full stack Developer at Fortech
January 1, 2016 - April 30, 2017
Developed high-traffic websites using React.js, Java, Spring Boot, Hibernate, and MongoDB, achieving 99.9% uptime. Integrated third-party payment gateways and OpenAI APIs to enhance e-commerce transactions. Conducted code reviews and unit testing with Jasmine and Karma to maintain code quality. Optimized platform performance using caching, Redis, and Kafka. Developed automated testing suites with JUnit, Mockito, TestNG, and Log4j. Played a key role in cloud infrastructure design using Azure, AWS, GCP, and Kubernetes. Engaged in blockchain and decentralized technology innovation using Web3 and Rust.
Frontend developer at Softvision
August 1, 2014 - December 31, 2015
Developed and maintained high-traffic e-commerce and healthcare SaaS platforms using AngularJS and Angular 5. Implemented RESTful APIs with PHP and Laravel, and managed backend infrastructure with Terraform. Improved database design and performance using PostgreSQL. Participated in agile workflows and sprint planning. Led projects using C#, ASP.NET, and .NET Core. Ensured cross-browser compatibility and developed web designs delivering strong user experiences.
Software Engineer - Team Lead at Plavno
April 1, 2021 - June 15, 2024
Engineered a modular banking automation platform with independent micro frontends and microservices using Angular 17 and Node.js. Developed secure RESTful APIs, integrated Keycloak for SSO and fine-grained access control, and improved deployment efficiency through Docker containerization. Implemented asynchronous communication with Kafka, increasing throughput by 35%. Collaborated with UI/UX teams to enhance user satisfaction by 25%. Leveraged GENAI and GitHub Copilot to reduce development time by 30%. Created test cases, manual and automated testing using Playwright.
Freelance Consultant - Full Stack Engineer at Additiv
April 1, 2017 - March 31, 2021
Contributed to fintech web application development using Angular and NgRx for optimal user experience. Integrated JWT authentication and real-time WebSocket communication. Established CI/CD pipelines, optimized performance via code profiling and caching, and used AWS Lambda and ECS for serverless computing. Developed AI-powered personalized chatbot systems with OpenAI models, boosting sales by 25%. Integrated Zoom and Grafana dashboards to enhance app functionality.
Software Engineer at Fortech
January 1, 2016 - April 30, 2017
Developed and maintained high-traffic websites with React.js, Java, Spring Boot, and MongoDB, achieving 99.9% uptime. Conducted code reviews and unit testing, optimized platform performance using caching, Redis, and Kafka. Developed automated testing suites with JUnit, Mockito, TestNG, and Log4j. Designed cloud architecture for mobile apps and employed Web3 and Rust for blockchain and decentralized tech innovation. Managed servers and project versions on Microsoft Azure, AWS, and GCP.
Software Developer at Softvision
August 1, 2014 - December 31, 2015
Developed and maintained high-traffic e-commerce and healthcare SaaS platforms using AngularJS and Angular 5. Designed RESTful APIs with PHP and Laravel. Managed backend infrastructure using Terraform and PostgreSQL databases. Participated in agile development processes and improved MVC workflows. Spearheaded projects using C#, ASP.NET, and .NET Core. Delivered cross-browser compatible web designs ensuring exceptional user experience.
Software Engineer at PLAVNO
April 1, 2021 - Present
Engineered a modular banking automation platform using micro frontend architecture and Python Django microservices, enabling domain-driven development and parallel team deployment. Designed and implemented RESTful APIs with Django REST Framework and Flask for core banking functions, securing and optimizing performance. Integrated Angular 17 micro frontends through shared interface contracts and built micro frontend architecture using Webpack Module Federation. Configured dynamic module loading allowing runtime consumption of federated modules. Integrated Keycloak for SSO and role-based access control. Improved deployment efficiency via containerization with Docker and Nginx. Implemented asynchronous, multithreaded communication using Kafka for event processing, enhancing throughput. Collaborated with UI/UX teams for dynamic Angular components, improved deployment with Spring Cloud Gateway. Automated banking document workflows and leveraged GENAI and GitHub Copilot to optimize developme
Full Stack Engineer at ADDITIV
March 31, 2021 - July 29, 2025
Developed high-performance fintech web applications using Angular with advanced state management via NgRx, ensuring optimal user experience across devices. Optimized performance with RxJS for reactive programming and integrated JWT for secure authentication. Added real-time communication through WebSocket, established CI/CD pipelines with Jenkins/GitLab, and resolved performance bottlenecks by profiling and caching. Worked closely with designers using Angular Material to enhance UI, increasing user engagement by 15%. Integrated AWS services like Lambda and ECS for serverless and container orchestration. Developed AI-powered chatbot systems with OpenAI models, increasing sales by 25%. Enhanced web app functionality through Zoom and Grafana dashboard integration.
Full Stack Developer at KAIZEN
April 1, 2017 - July 29, 2025
Developed and maintained high-traffic websites using React.js, Java, Spring Boot, Hibernate, and MongoDB with 99.9% uptime. Integrated payment gateways and OpenAI APIs to improve e-commerce transactions. Conducted code reviews and unit testing for stability, optimized platform performance using caching, SQL query optimization, Redis, and Kafka. Built automated testing suites with JUnit, Mockito, TestNG, and Log4j. Created secure banking applications ensuring optimal user experience and data security. Designed cloud infrastructure for mobile apps with Kubernetes-based container orchestration across Azure, AWS, and GCP. Innovated with Web3 and Rust in blockchain/cryptocurrency projects, managing project versions and servers effectively.
Junior Frontend Developer at SOFTVISION
December 31, 2015 - July 29, 2025
Developed and maintained high-traffic e-commerce and healthcare SaaS platforms using AngularJS and Angular 5. Implemented RESTful APIs with PHP and Laravel for efficient data handling. Managed backend infrastructure with Terraform and monitored project progress using Trello. Assisted database design using PostgreSQL, improving retrieval speed by 20%. Participated in agile workflow and sprint processes. Conducted MVC workflow optimization research to streamline development. Led innovative projects using C#, ASP.NET, and .NET Core. Excelled in web design ensuring cross-browser compatibility and excellent user experiences.

Education

Bachelor of Science at Baku State University
April 1, 2010 - March 31, 2014
Bachelor of Science at Baku State University
April 1, 2010 - March 31, 2014
Bachelor of Science at Baku State University
April 1, 2010 - March 31, 2014
Bachelor of Computer Science at UITM
April 1, 2010 - March 31, 2014

Qualifications

Java Certification
January 1, 2023 - December 31, 2023
JavaScript Certification
January 1, 2023 - December 31, 2023
Java Certification
January 1, 2010 - December 31, 2010
JavaScript Certification
January 1, 2010 - December 31, 2010
JavaScript Certification
January 1, 2023 - December 31, 2023

Industry Experience

Software & Internet, Financial Services, Professional Services, Media & Entertainment, Healthcare