Senior Full Stack Engineer – Java/React

This is a fully remote position, open to applicants in Vietnam.

📋 Description

• Design, develop, maintain, and enhance applications utilizing Spring Boot (MVC and WebFlux), React, and the Microsoft/Java technology stack where applicable.

• Convert business needs into functional, secure, and scalable solutions.

• Construct and maintain REST APIs, integrate messaging queues, and implement asynchronous/event-driven architectures.

• Oversee database schema design and migrations for MySQL/PostgreSQL; enhance queries and performance.

• Engage in infrastructure-as-code initiatives and deploy across multiple AWS environments.

• Secure APIs using OAuth2/Spring Security, JWT, and policy-based authorization methods.

• Maintain, upgrade, and refactor existing codebases for improved performance.

• Write and uphold unit and integration tests; assist in CI/CD and observability practices.

• Collaborate with product, QA, and distributed engineering teams; take part in Agile sprints and code reviews.

• Ensure code adheres to best practices, design patterns, and security protocols.

• Mentor colleagues, investigate and resolve production issues, and support ongoing improvement efforts.

• Work alongside Business Analysts and US-based stakeholders to clarify project requirements.

• Suggest technical strategies and detailed implementation plans.

• Execute daily tasks, troubleshoot issues, and assist team members as needed.

• Conduct unit and cross testing and document findings.

• Perform technical research and provide internal training sessions.

⛳️ Requirements

• At least 6 years of practical experience with Java and Spring Boot (MVC and/or WebFlux/Reactor).

• Strong proficiency in React, REST APIs, HTML5, CSS3, and responsive UI using Bootstrap.

• Solid background with relational databases (MySQL, PostgreSQL), including schema design, migrations, and performance optimization.

• Familiarity with messaging systems such as RabbitMQ, AWS SQS/SNS, or similar, and event-driven architectures.

• Practical experience with AWS services including Lambda, ECS, S3, RDS, and SSM.

• Knowledge of OAuth2/Spring Security, JWT, and policy-based authorization frameworks.

• Testing proficiency with JUnit, Mockito, or similar testing frameworks.

• Strong grasp of performance, security, best practices, and design patterns.

• Experience with Web Services.

• Bachelor’s Degree in Computer Science, Information Systems, or a related field, or equivalent professional experience.

• Familiarity with WCF or .NET is advantageous but not mandatory.

• Desirable skills include knowledge of fintech/payments domains, Terraform or equivalent IaC, reactive programming, observability, distributed applications, Agile/Scrum methodologies, and strong communication abilities.

🏝️ Benefits

• Competitive Salary Package – Enjoy a rewarding income from day one.

• Full salary during probation plus complete social insurance coverage.

• Comprehensive health insurance for you and your loved ones (spouse/children).

• Monthly childcare support.

• 15 days of annual leave.

• 6 weeks of paternity leave.

• 10 days of bereavement leave.

• Opportunities to join Football, Billiards, Badminton, and E-sports clubs.