Skillwell helps the world's leading companies measure and develop skills to drive business performance. Employees apply workplace skills in realistic scenarios while the simulation platform measures their strengths and gaps.
As a Senior Software Engineer, you won't just "write code"; you will be a steward of technical excellence and evolutionary architecture, ensuring our platform remains adaptable to changing business needs:
Test-Driven Development & Refactoring : Embrace a rigorous Test-First approach to feature design and implementation. Proactively engage in continuous refactoring to ensure the codebase remains clean, highly maintainable, and free from technical debt.
Behavior Driven Development (BDD) : Partner with stakeholders to translate user stories into executable specifications using BDD frameworks, ensuring the "Definition of Done" meets both functional and quality standards.
Continuous Improvement & DevOps Culture : Beyond monitoring build health, you will actively seek ways to optimize our CI/CD pipelines to reduce lead time and improve deployment frequency.




Agile Mentorship & Leadership : Lead by example in pair programming and code reviews. Foster a culture of Kaizen (continuous improvement) by facilitating knowledge-sharing sessions on design patterns, SOLID principles, and emerging tech.
Evolutionary Architecture : Use the C4 model and UML to document our system, ensuring that architectural decisions are collaborative, transparent, and capable of evolving as the platform scales.
Requirements
Required:
Java Mastery : 7+ years of experience with Java/Jakarta EE, with deep expertise in modern versions (Java 17+).
Test-Driven Development : At least 2 years of professional experience where TDD was your primary development workflow, ensuring all production code is designed, written, and evolved through a test‐first approach. You should be comfortable explaining the benefits of "Red‐Green‐Refactor" and how it facilitates agile delivery.
Continuous Deliver

📌 Senior Software Engineer (España)
🏢 Skillwell
📍 España