Senior Java Architect: Scale Backend Systems & Lead Impact

GBL Tech; Portugal; On-site; EUR 60,000 - 90,000; Full time

Job summary

GBL Tech is seeking a Senior Java Engineer in Portugal to lead backend architecture for a strategic client project. You will own outcomes, craft scalable solutions, and bridge code to business impact.

You will design for high availability, mentor teammates, and ensure security-by-design in a dynamic, global-scale environment. Proficiency in English is mandatory for cross-team collaboration.

Qualifications

• 5+ years of hands-on Java development experience, with cloud-native architectures (AWS preferred).
• Deep knowledge of Spring Boot and related Java frameworks for scalable backend services.
• Solid experience with relational and non-relational databases, choosing the right tool for the data pattern.
• Self-starter who defines problems clearly and makes timely, well-founded decisions.
• Ability to build relationships across teams and navigate complex discussions with diplomacy.
• Strong command of English is mandatory.

Responsibilities

• Design for high availability, including monitoring, logging, and graceful degradation as standard.
• Act as the technical compass, translating trade-offs into terms clients care about.
• Mentor teammates, conduct thorough code reviews, and foster security-by-design within the client’s engineering team.

Skills

Java

AWS

Spring Boot

Databases (RDBMS/NoSQL)

Leadership & Mentoring

Job description

GBL Tech is seeking a Senior Java Engineer in Portugal to lead backend architecture for a strategic client project. You will own outcomes, craft scalable solutions, and bridge code to business impact.

You will design for high availability, mentor teammates, and ensure security-by-design in a dynamic, global-scale environment. Proficiency in English is mandatory for cross-team collaboration.