Senior Full-stack Software Engineer (ReactJS, Java)
12/18/2025
The Senior Full-stack Software Engineer will perform hands-on coding, code reviews, and develop applications based on customer requirements. They will also participate in Agile/Scrum activities and provide mentoring for junior members.
Working Hours
40 hours/week
Company Size
501-1,000 employees
Language
English
Visa Sponsorship
No
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
- Perform hands-on coding and code review as other peer developers as needed.
- Understand the requirements of the customer or business and utilize this knowledge to develop applications that are consistent with this.
- Design, develop, review, implement, maintain and manage continuous integration, build management and deployment scripts, systems, and any code as required.
- Participate in Agile/Scrum activities: daily standup, demo session, retrospective, estimate, and planning, etc.
- Provide mentoring/training for junior members if any.
- Perform other tasks assigned by the Line Manager.
Qualifications
General requirements:
- At least intermediate English communication (able to work with international clients)
- Likely having 5+ years of experience (flexible depending on how fast your learning and technical developing capabilities are)
- Ability to obtain deep knowledge of the project technologies and work independently with minimum guidance
- Ability to self-learn and adapt to new technologies quickly
- Familiar with Agile development methodologies (Scrum, XP, Kanban)
Technical requirements:
- Expert in ReactJS, HTML5, CSS3 and JavaScript/ES6
- Hands-on experience in Java, Spring framework
- Experience in building a single page application including front-end routing, 2-way data binding, client-side rendering, and JSON-based RESTful APIs
- Experience with Responsive Layouts
- Experience in the Unit Test frameworks such as Jest, Testing Library, Mocha, Jasmine
- Hands-on experience in Platform as a Service like AWS
- Practice knowledge of website optimization techniques and fast page load times
- Understand practices for high code quality: maintainability, reusability, code reviewing, and unit testing.
Nice to have:
- Experience with front-end architectures such as Monorepo, Micro frontend.
- Experience with large-scale web-based applications, setting up CI/CD pipelines and web security issues.
- Experience in microservices and cloud environments (Azure/AWS/GCP)
- Demonstrated interest and ability to learn other coding languages as needed
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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