Senior Full-stack Software Engineer (Java and ReactJS)

  • Full-time

Company Description

KMS Technology was established in 2009 as a U.S.-based software services company. With development centers in Vietnam and Mexico, we have been trusted globally for the superlative quality of our software consulting & development services, technology solutions, and engineers' expertise. 

We pride ourselves on creating brilliant solutions for our clients by leveraging deep expertise, advanced technologies, and delivery excellence—achieving a shared success where everyone can reach their fullest potential. We believe that the business success we contribute to reflects our commitment to making a difference for our community, providing solutions that create long-lasting impacts within 3 main business sectors:

  • Enterprise software development services: Leverage software domain expertise to help clients make better business decisions in technology platforms, increase speed-to-market, and gain critical development support through innovative technology solutions
  • Healthcare technology solutions: Build transformative next-gen technologies to solve healthcare’s most challenging problems, providing innovative tools and expertise to providers, payers, life sciences, and medical technology vendors
  • Banking, Financial Services & Insurance (BFSI) technology solutions: Empower BFSI businesses to embrace the digital finance revolution and expedite clients’ journey towards complete digitalization, technology consulting, data analytics, software development, and software quality

Job Description

  • Design, develop, and maintain full-stack web applications with Java (core focus), Spring Boot/ Quarkus on the backend and ReactJS on the frontend.
  • Design and implement RESTful APIs, ensuring scalability, security, and performance.
  • Participate in system design, technical solutioning, and code reviews.
  • Collaborate with Product Owner, QA, and DevOps to deliver features end-to-end.
  • Work with AWS/Azure cloud services to deploy, operate, and troubleshoot applications in production.
  • Write and maintain unit tests and integration tests to ensure high code quality.
  • Mentor and support junior engineers.
  • Participate in Agile/Scrum activities (planning, estimation, demo, retrospective).

Qualifications

General requirements:

  • At least intermediate English communication (working with international clients).
  • Likely having 4+ years of experience (flexible depending on how fast your learning and technical developing capabilities are)
  • Strong ownership mindset; able to work independently with minimal guidance.
  • Proactive learner, adaptable to new technologies and domains.
  • Experience in collaborating with the client's development team

Technical requirements:

  • Strong experience in Java (main core) with Spring Boot/Quarkus for back-end and building RESTful APIs
  • Hands-on experience with ReactJS for front-end
  • Good understanding of OOP design, design patterns, and clean code principles
  • Experience with PostgreSQL and writing efficient queries
  • Solid understanding of SPA concepts: component-based architecture, state management, REST integration
  • Good experience in unit testing and API testing (JUnit, Mockito, Jacoco, Postman)
  • Experience with Docker for building and running applications
  • Experience using Git with GitHub workflow and GitHub Actions
  • Good understanding of CI/CD pipelines and modern software delivery practices
  • Strong focus on code quality, maintainability, reusability, and code review

Nice to have:

  • Experience with Spring Cloud or microservices architecture
  • Experience in microservices and cloud environments (Azure/AWS/GCP) 

Additional Information

Perks You'll Enjoy 

  • Working in one of the Best Places to Work in Vietnam
  • Building large-scale & global software products
  • Working & growing with Passionate & Talented Team
  • Diverse careers opportunities with Software Outsourcing, Software Product Development, IT Solutions & Consulting
  • Attractive Salary and Benefits
  • Performance appraisals every year and performance bonus
  • Onsite opportunities: short-term and long-term assignments in North American (U.S, Canada), Europe, Asia.
  • Flexible working time
  • Various training on hot-trend technologies, best practices and soft skills
  • Premium healthcare insurance for you and your loved ones
  • Company trip, big annual year-end party every year, team building, etc.
  • Fitness & sport activities: football, tennis, table-tennis, badminton, yoga, swimming…
  • Joining community development activities: 1% Pledge, charity every quarter, blood donation, public seminars, career orientation talks,…
  • Free in-house entertainment facilities (foosball, ping pong, gym…), coffee, and snack (instant noodles, cookies, candies…)

And much more, join us and let yourself explore other fantastic things!

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