Remote Full‑Stack Engineer (Java/React) – AI & Microservices

Adentis Portugal; Portugal; Remote; EUR 70,000 - 100,000; Full time

Benefits offered by this job

Work-Life balance

Flexible routine

Health benefits for you and family

Discounts & perks network

Training and Certification

Job summary

Adentis Portugal seeks an experienced software engineer to develop and maintain enterprise-scale applications. You will design backend solutions with Java, Spring Boot, and Spring Cloud, and build scalable microservices and REST APIs.

You will also develop AI/GenAI integrations, emphasize API-first architectures, and operate in a fully remote, international team environment. Fluency in English (C1/C2) is required.

Qualifications

• 8+ years of hands-on software engineering experience.
• Expert-level Java with strong Spring/Spring Boot/Spring Cloud.
• 4+ years of frontend development, mainly with React.
• Strong experience with microservices, REST APIs and integration architecture.
• Experience with AI/GenAI, LLMs, RAG, vector databases/search and AI integrations valued.
• Excellent communication and collaboration skills.
• English at C1/C2 – mandatory for a fully remote international environment.

Responsibilities

• Develop and maintain enterprise-scale fullstack applications.
• Design and implement backend solutions using Java, Spring Boot and Spring Cloud.
• Develop scalable microservices, REST APIs and integration architectures.
• Design distributed systems focused on resilience, scalability, performance and observability.
• Develop and integrate AI/GenAI solutions, including LLM models, RAG pipelines and AI-enabled applications.
• Apply API-first architecture, service discovery and circuit breaker patterns.
• Work effectively in a fully remote and international environment.

Skills

Java

Spring Boot

Spring Cloud

Microservices

REST APIs

React

AI/GenAI

LLMs

Distributed systems

Observability

English (C1/C2)

Tools

React

Java

Spring

Job description

Adentis Portugal seeks an experienced software engineer to develop and maintain enterprise-scale applications. You will design backend solutions with Java, Spring Boot, and Spring Cloud, and build scalable microservices and REST APIs.

You will also develop AI/GenAI integrations, emphasize API-first architectures, and operate in a fully remote, international team environment. Fluency in English (C1/C2) is required.