Senior Java Developer at GTEMAS

Confirmed open

GTEMAS seeks a senior Java developer for large enterprise applications serving banking and fintech clients. The work combines Spring-based services, messaging and secure data access.

GTEMAS

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Location: Remote
Advertised region: VN / Vietnam
Employment: CONTRACTOR
Work arrangement: remote
Technologies: Java, SQL

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Role overview

GTEMAS seeks a senior Java developer for large enterprise applications serving banking and fintech clients. The work combines Spring-based services, messaging and secure data access.

Responsibilities

Develop and maintain Java 17+ applications with Spring Boot and design microservices using Spring Cloud gateway, configuration and circuit-breaker tools.
Build asynchronous flows with Kafka or RabbitMQ; improve Hibernate/JPA data access and complex SQL queries.
Apply OAuth2, JWT and Spring Security, and work with DevOps on Jenkins or GitLab delivery pipelines.

Qualifications

At least five years of Java development and deep experience with Spring Boot, Data, Security and Cloud.
Understanding of microservice patterns including Saga, CQRS and API gateways, along with multithreading and problem solving.
Experience with Oracle or PostgreSQL relational databases and Redis caching.

Technology in this role

Java: GTEMAS seeks a senior Java developer for large enterprise applications serving banking and fintech .
SQL: improve Hibernate/JPA data access and complex SQL .
PostgreSQL: Experience with Oracle or PostgreSQL relational databases and Redis .
Redis: Experience with Oracle or PostgreSQL relational databases and Redis .
Kafka: Build asynchronous flows with Kafka or .
Jenkins: Apply OAuth2, JWT and Spring Security, and work with DevOps on Jenkins or GitLab delivery .
Spring Boot: Develop and maintain Java 17+ applications with Spring Boot and design microservices using Spring Cloud gateway, configuration and circuit-breaker .
RabbitMQ: Build asynchronous flows with Kafka or .

Role-specific candidate guide

Preparation notes based on the employer’s stated responsibilities and qualifications.

Understanding the scope. This Senior Java Developer position at GTEMAS is best assessed through the work described in the employer’s posting, rather than the title alone. The available role overview says: “GTEMAS seeks a senior Java developer for large enterprise applications serving banking and fintech clients. The work combines Spring-based services, messaging and secure data access.” Read that statement together with the responsibilities below to understand the likely balance between delivery, coordination and technical decision-making. The role belongs to the software engineering area, but that label is only a guide to the work; the employer’s own requirements remain decisive. Before applying, check the original listing for reporting lines, product or team assignment, employment terms and any details that may have changed since this copy was checked. Where this page says a fact is not specified, treat it as an open question rather than an implied promise.

What the responsibilities signal. The posting specifically names “Develop and maintain Java 17+ applications with Spring Boot and design microservices using Spring Cloud gateway, configuration and circuit-breaker tools.”; “Build asynchronous flows with Kafka or RabbitMQ; improve Hibernate/JPA data access and complex SQL queries.”; “Apply OAuth2, JWT and Spring Security, and work with DevOps on Jenkins or GitLab delivery pipelines.”. For each duty, identify a project where you performed comparable work and be ready to describe the context, your own contribution, constraints, decisions, and measurable result. Explain how you moved from the initial need to implementation, review, release or operational follow-through, where those stages apply. If the work involved other teams or users, distinguish your decisions from the group’s contribution. Avoid presenting a technology keyword as proof by itself: connect it to the problem you solved, the scale or complexity involved, and what changed after your work. The source may contain additional duties; review it directly before preparing your application.

How to read the requirements. The listed qualifications include “At least five years of Java development and deep experience with Spring Boot, Data, Security and Cloud.”; “Understanding of microservice patterns including Saga, CQRS and API gateways, along with multithreading and problem solving.”; “Experience with Oracle or PostgreSQL relational databases and Redis caching.”. Mark each requirement as demonstrated, adjacent experience or a genuine gap, then use a concise example for the first two categories. A strong example explains what you personally owned, how you made trade-offs, how you validated the result and what you learned. If the posting specifies years of experience, language ability, certifications, location or eligibility, address those facts plainly in your CV or application rather than relying on the employer to infer them. Do not claim a qualification from exposure alone. For a requirement you do not meet, describe relevant transferable experience accurately and ask the recruiter whether it is mandatory.

Technology and working evidence. The technology terms associated with this listing are Java, SQL. Treat this as a set of posting-derived signals, not a guarantee that every tool is used daily or.

About GTEMAS

GTEMAS (Global Tech Masters) presents itself as a global engineering partner and talent ecosystem. It connects businesses with software professionals to build digital products, scale delivery teams and support longer-term engineering partnerships. The company describes a model that combines technical assessment, structured delivery and professional development for its engineering community.

Its public materials highlight work across software engineering, quality, cloud and security, with an emphasis on measurable delivery, learning and client collaboration. A role at GTEMAS may serve a client engagement, so the specific product, customer context and day-to-day team can differ by assignment. Candidates should ask which project this vacancy supports and how responsibilities are divided between the GTEMAS team and the client.

Employer website

How to apply

Review the original posting and apply through the employer’s careers page.

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Source checked: 2026-11-08