Middle/Senior Backend Engineer (Java/ MySQL/ Spring)

Responsibilities Operate, develop and optimize back-end systems (Java /Spring framework /SQL). Responsible for managing, operating and optimizing server and database systems. Receive, analyze and develop functions as required, ensure code quality and maintain functional integrity. Monitor and troubleshoot servers and databases through logging and alerting tools. Configure, deploy, and manage physical (on-premise) or cloud AWS servers. Research and develop new technology to increase project efficiency. Requirements Bachelor's Degree in Computer Science/Information Technology or relevant fields. From 3 - 7 years of hands-on experience in using Java to design and develop WEB applications. Upper-intermediate English is a must, including 4 skills: reading, writing, speaking and listening (able to work in English-speaking environment). Experience working with relational databases (MySQL, PostgreSQL, MS SQL) and NoSQL (MongoDB, Redis, Cassandra). Proficient in ORM (JPA, Hibernate), query optimization, and managing cloud databases (AWS RDS, Google Cloud SQL). Skilled in schema migration (Flyway, Liquibase) and performance tuning (HikariCP, replication, partitioning, backup & recovery). Proficient in developing RESTful APIs using Spring Boot or JVM languages (Kotlin, Scala). Skilled in caching, authentication (JWT, OAuth2, Keycloak), and third-party integrations. Experienced in API documentation (Swagger/OpenAPI), reactive libraries (Feign, RestTemplate, WebClient), and API gateways (Kong, Zuul, Spring Cloud Gateway). Experience deploying and monitoring in cloud environments with Docker, Kubernetes, and CI/CD. Familiar with Git and SVN. Strong analytical and problem-solving abilities; Experienced in ERP/CRM functional development and selecting suitable tech solutions for scalable, high-performance systems EducationDegreeBachelor in Information System, Infrastructure, Information TechnologyCertificationBenefitsIncome & Achievement Full SHUI as Vietnamese Law Competitive salary, salary review once a year 13th month salary and Annual Performance Bonus MVP and Shining star awards at the end of year Workplace Happiness Premium Private Medical Insurance PVI and annual health check 15-day annual leave, Christmas leave and 90-min menstrual leave for women Company trip, YEP and monthly gathering time Gifts on special occasion and fully stocked snack corner Sponsored training courses and book purchase quarterly Be well-equipped with new working equipment Global and professional working environment Recruitment ProgressRound 1Interview with Tech Lead, CTORound 2Salary Negotiation