Decskill

Java developer server-side applications

In short

Senior Java developer role at Decskill, an IT consulting company with 800+ professionals across Lisbon, Porto, and Madrid, building and maintaining server-side applications and integrations for business-critical systems. The role requires 5+ years of experience, strong expertise in Java 17+, distributed systems design, and application modernization experience, working in a hybrid format in Lisbon. The team emphasizes Agile methodologies, code quality, and production support.

About the Company
We are growing. And we are looking for talented people. At Decskill, we believe that technological excellence is driven by human talent. We are an IT consulting company with more than 10 years of consolidated experience in the market, focused on building long-term relationships with both our clients and our people. Today, we are a community of over 800 professionals, working from Lisbon, Porto, and Madrid, contributing to impactful technology initiatives.
Responsibilities
•Develop and maintain server-side applications and core platform components
•Design and implement new features and enhancements for business-critical systems
•Build and maintain integrations with internal and external systems
•Ensure applications meet high standards of quality, security, performance, scalability, and reliability
•Write clean, maintainable, high-performance, and testable code following software engineering best practices
•Collaborate with cross-functional teams throughout the software development lifecycle
•Support application releases, maintenance activities, and production deployments
•Work closely with business stakeholders to gather requirements and deliver technical solutions
•Provide advanced production support and troubleshoot complex technical issues when required
Requirements
•Minimum of 5 years of professional software development experience
•Experience working in fast-paced, business-critical environments
•Experience with Agile software development methodologies
•Experience with application modernization, migration, or refactoring initiatives
•Strong expertise in Java 17+
•Extensive experience developing server-side applications
•Strong understanding of object-oriented programming principles and software design patterns
•Proven ability to develop scalable, high-performance, maintainable, and testable applications
•Experience designing and implementing distributed systems and system integrations
•Strong debugging, troubleshooting, and performance optimization skills
•Bachelor's degree or higher in Computer Science, Software Engineering, Mathematics, or another quantitative discipline
•Strong analytical and problem-solving abilities
•Excellent communication and collaboration skills
•Attention to detail and commitment to delivering high-quality software
•Ability to work independently while contributing effectively within a team
•Strong sense of ownership and accountability
•Good command of English (written and spoken)
What We Offer
Are you looking for an environment that values curiosity and commitment? Here, your contribution has real impact and individual growth is taken seriously.
•Long-term projects with national and international context
•Opportunities to grow technically and professionally
•A people-first culture, focused on transparency and trust
•Teams that value ownership, collaboration and stability

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