Senior Fullstack Engineer (Product/ System/ SaaS/ PaaS)

Our client is an international software development company, delivering custom software solutions for enterprise clients in Europe. They deliver solutions according to the latest technical standards for different industries and sectors, using new technologies and modern approaches.

We are currently seeking a Senior Full-stack Engineer to join our growing team in Vietnam. You will play a key role in designing and developing sophisticated SaaS/PaaS applications that prioritize performance, usability, and accessibility.

Responsibilities

• Design, develop, and maintain scalable full-stack applications across both front-end and back-end systems.
• Build and maintain robust microservices using Java Spring Boot.
• Develop complex, high-performance front-end applications using Angular 19 and PrimeNG.
• Design and implement distributed, scalable solutions aligned with business requirements.
• Develop advanced UI features using tools such as ELKjs, Mermaid, Monaco Editor, and Ngx-Markdown.
• Utilize RxJS and TypeScript to build reactive and maintainable front-end architectures.
• Design and manage databases using PostgreSQL and ensure efficient data integration across services.
• Containerize applications using Docker and manage deployments with Kubernetes (K8S).
• Implement secure authentication and authorization using OAuth2 and OpenID Connect.
• Deploy and scale applications on cloud platforms such as AWS and Azure.
• Collaborate closely with designers, product managers, and cross-functional teams to deliver high-quality products.
• Participate in requirement analysis, solution design, and technical decision-making across the stack.
• Ensure code quality through best practices, including testing (unit/integration), code reviews, CI/CD, and documentation.
• Work effectively in global teams and contribute to Agile/Scrum development processes.

Requirements

• Fluent in English with strong communication skills for both technical and non-technical stakeholders.
• 7+ years of experience in software development, with strong exposure to both front-end and back-end technologies.
• Strong proficiency in Java Spring Boot and microservices architecture.
• Solid experience with Angular (v19 preferred) and modern front-end development practices.
• Advanced knowledge of TypeScript and RxJS for building reactive applications.
• Experience with PrimeNG or similar UI component libraries.
• Strong understanding of HTML5, CSS/SCSS, and responsive design principles.
• Experience with PostgreSQL and solid database design knowledge.
• Hands-on experience with Docker and Kubernetes.
• Familiarity with cloud platforms (AWS/Azure), including deployment and security practices.
• Solid understanding of software engineering best practices: testing, CI/CD, design patterns, and documentation.
• Experience in API integration, testing, and mocking.

Preferred Qualifications (Nice to Have)

• Experience building SaaS/PaaS products.
• Exposure to AI/ML projects or foundational understanding of machine learning concepts.
• Familiarity with visualization and editor tools like ELKjs, Mermaid, Monaco Editor.
• Experience with additional databases (e.g., MongoDB, MySQL).
• Prior experience in a startup environment.
• Experience working in Agile/Scrum teams.
• Ability to take ownership of technical decisions across the full stack.

Why you’ll love working here

• Working time: Monday-Friday 9:00-18:00 (Hybrid, at least 2 days/week at the office)
• Annual personal review meeting
• Full payment during probation period
• Full 13th salary
• 12 annual leaves
• Company trip
• Variable bonus.
• Gifts on special events.
• Monthly team bonding.
• Full Equipment for your work