Mid-Level Java Backend Engineer - Microservices & AWS

Expleo Group; Lisboa; Hybrid; EUR 40,000 - 55,000; Full time

Job summary

Expleo collaborates globally to drive innovation through engineering, technology and consulting services. The team seeks a backend developer with 3–4+ years of experience specializing in Java, microservices, REST APIs, and GraphQL, with strong knowledge of authentication flows and event-driven/messaging systems.

Proficiency in AWS SQS and fluent English are preferred to collaborate effectively across pan-European centers and client projects.

Qualifications

• 3–4+ years experience as Backend/Java developer or similar role.
• Strong proficiency in Java, microservices, REST APIs, and GraphQL.
• Solid knowledge of authentication and authorization flows.
• Experience with event-driven development and messaging systems.
• Experience with AWS Cloud (SQS).
• Good communication skills in English and detail-oriented.

Skills

Java

Backend development

REST APIs

GraphQL

Authentication flows

Event-driven development

Messaging systems

AWS SQS

English communication

Tools

AWS SQS

Job description

Expleo collaborates globally to drive innovation through engineering, technology and consulting services. The team seeks a backend developer with 3–4+ years of experience specializing in Java, microservices, REST APIs, and GraphQL, with strong knowledge of authentication flows and event-driven/messaging systems.

Proficiency in AWS SQS and fluent English are preferred to collaborate effectively across pan-European centers and client projects.