Mid-Level Full Stack Engineer — SaaS, Java/React, Remote

AgileEngine; Barcelona; Hybrid; EUR 80,000 - 107,000; Full time

Benefits offered by this job

Professional growth

Competitive compensation

Exciting projects

Flextime

Job summary

AgileEngine, LLC. in Spain is seeking a Mid-level Full Stack Developer to build secure, scalable software for public safety clients, including a client integration system built from scratch.

The role requires 3+ years SaaS experience and strong Java, React, and SQL skills, plus microservices, CI/CD and observability practices. You will collaborate with design and product teams, estimate work, plan sprints, and contribute to docs and deployment processes.

Qualifications

• 3+ years of SaaS experience.
• Proficient in Java, React, and SQL.
• Knowledge of microservices architecture.
• DevOps mindset with automation and CI/CD.
• Strong observability and CI/CD practices; meet deadlines; English proficiency.

Responsibilities

• Build a clean, reusable client integration system following secure cloud software practices.
• Collaborate with design and product teams to understand requirements, plan sprints, and meet delivery timelines.
• Estimate construction and delivery timelines accurately.
• Contribute to technical documentation and automated build/deploy processes.
• Review code and participate in pull-request deployment.

Skills

SaaS experience

Java

React

SQL

Microservices architecture

CI/CD

Observability

Upper-intermediate English

Tools

AWS

Job description

AgileEngine, LLC. in Spain is seeking a Mid-level Full Stack Developer to build secure, scalable software for public safety clients, including a client integration system built from scratch.

The role requires 3+ years SaaS experience and strong Java, React, and SQL skills, plus microservices, CI/CD and observability practices. You will collaborate with design and product teams, estimate work, plan sprints, and contribute to docs and deployment processes.