Vo Hoang Son

Summary
Involved in the development and maintenance of B2B Insurance Portals for the Swiss customer Mobiliar.

• Maintained, fixed bugs, and optimized performance of the legacy MPE (Makler Portal) system built with JEE, Flywild, and PrimeFaces.
• Developed the new MPP (Makler Portal Partner) system with a modern architecture stack (Java 21, Quarkus, Angular).

Responsibilities

• Developed backend APIs (Java 21, Quarkus) to handle Partner, Document, and Attestation business processes.
• Built and optimized Angular front-end modules (Reactive Forms, Signal API, overlays).
• Wrote unit, integration, and Playwright tests for both backend and frontend.
• Deployed and monitored services on Azure, integrated CI/CD pipelines using GitLab.
• Supported data migration and ensured compatibility between MPE and MPP during transition.

Technologies

• Backend: Java 21, Quarkus, Kafka, REST, MapStruct, JBoss EAP.
• Legacy: JEE, PrimeFaces.
• Frontend: Angular 17–19, RxJS, Nx monorepo.
• DevOps: GitLab CI/CD, Azure, Docker, Kubernetes.
• Others: OpenHTMLtoPDF, Terraform, OIDC Security.

Collaboration

• Worked closely with Business Owners in Switzerland, including onsite workshops in Bern.
• Conducted pair-programming and code reviews with colleagues in both Vietnam and Switzerland.
• Actively participated in Agile Scrum ceremonies: sprint planning, daily stand-ups, retrospectives.

Achievements

• Successfully refactored Partner Case Creation, reducing production defects by 30%.
• Designed and implemented the nationality update workflow, ensuring automatic synchronization of partner data.
• Delivered a Proof of Concept for SAP service integration, enabling future system extensibility.
• Successfully released the new MPP system, replacing the legacy MPE system that had been in operation for more than 20 years, ensuring a smooth transition with zero major service disruptions.

Summary
Contributed to the development and maintenance of the e-Letter module within KLARA.ch, an online business and accounting management platform in Switzerland. The e-Letter module enabled SMEs to send, receive, and manage digital business correspondence directly on the platform, replacing traditional postal workflows.

Responsibilities

• Developed and extended features for the e-Letter module using Java EE (Servlets, JSF/PrimeFaces).
• Integrated third-party APIs (e.g., electronic mail and notification services) to enhance connectivity.
• Debugged, fixed bugs, and optimized performance to ensure smooth user experience.
• Designed RESTful APIs to support communication between e-Letter and other KLARA.ch modules.
• Assisted in the migration from monolithic architecture to microservices (Docker/Kubernetes).

Technologies

• Backend: Java EE, Servlets, JSF, PrimeFaces, Microservices.
• DevOps: Docker, Kubernetes.
• API: RESTful API, third-party API integration.

Collaboration

• Worked closely with Business Analysts and QA to ensure e-Letter business requirements were implemented correctly.
• Collaborated with development teams in Switzerland during testing and release phases.
• Actively participated in Agile Scrum ceremonies: sprint planning, daily stand-ups, retrospectives.

Achievements

• Contributed to the successful launch of the e-Letter module, enabling thousands of Swiss SMEs to send and manage official correspondence electronically.
• Optimized processing performance of e-Letter, reducing system response times by ~20%.
• Supported integration of external e-mail APIs, expanding the service offering of KLARA.ch.

Summary
Participated in the training program at Fsoft Academy, focusing on building foundational web applications. The main project was a Quiz Test Exam system that allowed students to take online tests with automatic scoring, feedback, and performance tracking.

Responsibilities

• Built responsive web interfaces using HTML, CSS, JavaScript, ensuring cross-browser and multi-device compatibility.
• Developed quiz exam features including question creation, answer options display, and answer validation.
• Implemented back-end logic with Spring Boot and Spring JPA for scoring, feedback generation, and storing user performance data.
• Optimized quiz functionality for performance, responsiveness, and usability.
• Used Git for version control and collaborative development.

Technologies

• Backend: Spring Boot, Spring JPA.
• Frontend: HTML, CSS, JavaScript.
• Version Control: Git.

Collaboration

• Worked in a team with other academy trainees to build a full-stack project.
• Collaborated with instructors for code reviews and design improvements.
• Presented the final product demo to the evaluation board at the end of the program.

Achievements

• Successfully delivered a Quiz Test Exam application with automated scoring and real-time feedback.
• Improved user experience by ensuring the application worked smoothly across desktop, mobile, and tablet devices.
• The project was highly rated and later used as a reference model for subsequent training batches.

• Developed responsive websites using HTML, CSS, JavaScript, and Bootstrap to improve user experience.
• Conducted code reviews and testing to ensure high-quality code and maintain web security standards.
• Developed responsive website for library catalog system to improve user experience.
• Implemented automated book rental process to streamline library operations.
• Techs: Spring boot, Spring JPA, HTML, CSS, JavaScript, Git