Senior Java Developer

Job Description
We are looking for an experienced Senior Fullstack Developer to join our team in developing large-scale software systems for e-Government, digital transformation, and key projects for government agencies, ministries, and enterprises.
In this role, you will be responsible for designing, developing, and optimizing Backend and Frontend services using modern software architectures, ensuring high performance, robust security, and scalability. You will work closely with Business Analysts, Project Managers, QA Engineers, and DevOps Engineers to deliver high-quality software solutions.
Requirements
Key Responsibilities
Analyze business requirements, propose technical solutions, and design Backend and Frontend functionalities.
Design, develop, and optimize Backend services using Java and Spring Boot, following RESTful API and Microservices architectures.
Develop user interfaces using React, ensuring application performance, compatibility, and component reusability.
Design data models and optimize SQL queries, database structures, and data processing performance.
Implement authentication, authorization, security mechanisms, and integrations with external systems.
Contribute to software architecture design, coding standards, code reviews, and continuous improvement of code quality.
Collaborate with BA, PM, QA, and DevOps teams throughout the software development, testing, deployment, and maintenance lifecycle.
Investigate and resolve technical issues, perform root cause analysis, and recommend solutions to improve system performance and reliability.
Provide technical guidance and mentorship to Junior and Mid-level Developers and contribute to internal knowledge sharing and training.
Technical Qualifications
At least 5 years of professional software development experience with Java.
Strong proficiency in Java 17/21, Spring Boot, Spring MVC, Spring Data JPA, Hibernate, and Spring Security.
Hands-on experience in designing and developing RESTful APIs, Microservices, and system integrations.
Practical experience in Frontend development using React.
Experience working with Oracle, PostgreSQL, or MySQL, with strong SQL optimization and database performance tuning skills.
Good understanding and practical experience with JWT, OAuth2, Maven/Gradle, and common Design Patterns.
Experience with Git, Docker, and CI/CD pipelines.
Strong knowledge of software architecture, Object-Oriented Programming (OOP), SOLID principles, and Clean Architecture.
Benefits
Minimum 13 months salary per year - not including other bonuses such as KPI bonus for work efficiency, project bonus and revenue bonus. We do performance review twice a year. You will work in a professional, dynamic and friendly environment.
VTI offer annual health check-ups and fully pay social insurance, health insurance and unemployment insurance premium following the Labor law.
We offer one vacation/company trip and 4 teambuilding trips per year for every employees, along with various entertainment activities including: Swimming Clubs, Yoga, Zumba, Kendo and music order via internal Radio channel.
Two MVPs will be rewarded with a free trip to Japan, Taiwan, Singapore, or else.
We offer variety promotion opportunities and chance to raising income for people with capacity, enthusiasm, and long-term commitment.
We offer free Japanese class at the company.
We provide training opportunities to help our people to improve their skills. We support our members to learn and get Cloud, AWS, PMF, PMP certification.
Working hour from: 08:30am to 05:30pm. From Monday to Friday.
Expired at Nov 13, 2026
Job Details
Quantity
5
Locations
Hà Nội
Experience Required
Above 5 years
Level
Senior
Job Type
Bodyshop
Skills
Java