Middle/Senior Full Stack Engineer ID73950 Full time | AgileEngine | Spain

Posted On 07/16/2026

Job Information City: Valencia

State/Province: Valencia / València

Postal Code: 46003

Department: IT Services

AgileEngine is an Inc. 5000 company that creates award‑winning software for Fortune 500 brands and trailblazing startups across 17+ industries. We rank among the leaders in areas like application development and AI/ML, and our people‑first culture has earned us multiple Best Place to Work awards.

Why Join Us If you're looking for a place to grow, make an impact, and work with people who care, we'd love to meet you!

About the Role We are looking for a

Senior Full Stack Engineer to build robust server‑side solutions for a SaaS platform operating at scale, working across Java, React, SQL, Redis, and Elasticsearch. You will contribute to architecture decisions, design reusable client integration systems, and participate in code reviews and CI/CD processes as a trusted technical resource. The role requires 5–6 hours of daily EST overlap and prior SaaS production experience.

What You Will Do

Build a reusable client integration system following secure cloud software best practices

Collaborate with design and product teams to gather requirements,



create estimates, plan sprints, and meet delivery timelines

Plan and accurately estimate development and delivery timelines

Contribute to technical documentation and automated build and deployment processes to improve engineering efficiency

Review code submitted by other engineers and participate in the pull-request review process

MUST Haves

4+ years of SaaS experience

High level of proficiency in Java, React, and SQL

Knowledge of Microservices architecture

DevOps mindset focused on automation and continuous improvement

Understanding of observability and familiarity with strong CI/CD practices

Proven ability to meet deadlines, motivate others, and consistently produce high-quality, impactful results

Nice to Haves

Experience building software in the cloud, preferably with AWS

Perks and Benefits

Professional growth: mentorship, tech talks, and personalized growth roadmaps

Competitive compensation: USD-based pay with education, fitness, and team activity budgets

Exciting projects: modern solutions with Fortune 500 and top product companies

Flextime: adaptable schedule with remote and office options

📌 Middle/Senior Full Stack Engineer (Madrid)
🏢 AgileEngine
📍 Madrid