Senior Java Developer

Decskill; Lisboa; On-site; EUR 55,000 - 75,000; Full time

Job summary

Decskill is seeking a Senior Java Developer to join our growing team in Portugal. You will develop and maintain server-side applications and drive modernization initiatives using Java 17+ in a fast-paced environment.

You will design features, build integrations, and ensure quality, security, and performance while collaborating with cross-functional teams. A Bachelor's degree and strong English communication are expected.

Qualifications

• 5+ years of professional software development experience.
• Experience with Agile software development methodologies.
• Experience with application modernization, migration, or refactoring initiatives.
• Strong debugging and performance optimization skills.

Responsibilities

• Develop and maintain server-side apps and core platform components.
• Design and implement new features for business-critical systems.
• Build and maintain integrations with internal and external systems.
• Ensure applications meet standards of quality, security, performance, and scalability.
• Write clean, maintainable, high-performance, and testable code.
• Collaborate with cross-functional teams throughout the SDLC.
• Support releases, maintenance, and production deployments.
• Gather requirements and deliver technical solutions with stakeholders.
• Provide advanced production support and troubleshoot issues.

Skills

Java 17+

Distributed systems

Agile methodologies

Code quality & testing

English communication

Education

Bachelor's degree in Computer Science or related

Job description

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.

As part of the Astek Group, we combine a strong local culture with a global presence, being active in around 23 countries across 4 continents. This allows us to offer an international context, diverse challenges, and long-term career opportunities, while staying close to our teams.

We are looking for an Senior Java Developer!

Responsabilities:

• 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+.
• 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).

Are you looking for an environment that values curiosity and commitment? Here, your contribution has real impact and individual growth is taken seriously.

Find with us the right opportunity to grow!

What you can expect from us

• 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

Decskill is committed to equality and non-discrimination with all our talents. We recruit and promote talent, based on diversity and inclusion, regardless of age, gender, ethnicity, race, nationality or any other form of discrimination incompatible with the dignity of the human being.