Java Software Developer

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

Job summary

Decskill is growing and seeking a Java Software Developer to design, develop and maintain back-end systems supporting financial operations from Lisbon. You will work with Java, Spring Boot, and UML, contributing to the lifecycle from design to deployment while ensuring code quality and timely delivery.

Join a community of over 800 professionals, part of the Astek Group, with opportunities in a multinational setting across Portugal, Spain and beyond.

Qualifications

• Strong experience in Java development and object-oriented programming.
• Professional experience with Spring Boot applications.
• Proficiency in Oracle SQL.
• Knowledge of Unix/Linux systems and scripting is beneficial.
• Experience with DevOps tools and SDLC concepts.

Responsibilities

• Design, develop, test, support and enhance back-end systems for financial operations.
• Develop and maintain applications using Java and Spring Boot.
• Collaborate with functional and technical teams to understand business needs.
• Document solutions with UML diagrams and models.
• Create prototypes and proofs-of-concept to validate requirements.
• Prepare and execute unit, integration, and functional testing with automation.
• Deploy components and databases across environments.
• Participate in application support, troubleshooting, and bug fixes.
• Conduct code reviews and promote best practices.
• Estimate development efforts and ensure on-time delivery.
• Contribute to process improvements and innovative practices.

Skills

Java development

Spring Boot

Oracle SQL

Unix/Linux

DevOps tools

SDLC

Automated testing

Problem solving

Communication

Teamwork

Independent work

Organisational skills

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 searching for a Java Software Developer!

Responsibilities:

• Design, develop, test, support and enhance back-end systems supporting financial operations.
• Develop and maintain applications using Java and Spring Boot.
• Work closely with functional and technical teams to understand business functionalities, technical modules, integration mechanisms and data sources.
• Contribute to the technical design phase and document solutions using UML diagrams and models.
• Develop prototypes and proof-of-concepts to validate business requirements and technical solutions.
• Prepare and execute Unit, Integration, Regression, Performance and Functional Testing using automated testing frameworks.
• Deploy application components, shell scripts and databases across relevant environments.
• Participate in application support, troubleshooting and bug fixing activities.
• Work with teams to investigate and resolve complex technical issues.
• Ensure application quality and prioritise the resolution of critical issues.
• Conduct code reviews and promote software development best practices.
• Prepare and maintain technical and release documentation.
• Estimate development efforts and schedules and ensure delivery within agreed deadlines.
• Ensure compliance with software development lifecycle standards and organisational guidelines.
• Contribute to initiatives aimed at improving development processes and delivery efficiency.
• Identify opportunities for innovation and suggest new technical practices and improvements.
• Participate in out-of-hours or daytime support activities when required.
• Continuously develop technical skills and take on increasing levels of responsibility.

Requirements:

• Strong experience in Java development and object-oriented programming.
• Good knowledge of the Java ecosystem.
• Professional experience with Spring Boot applications.
• Good knowledge of the Java Collections API.
• Strong understanding of control structures, access modifiers and exception handling.
• Proficiency in Oracle SQL.
• Good knowledge of Unix/Linux systems, including scripting.
• Experience with DevOps tools.
• Thorough understanding of the complete Software Development Lifecycle (SDLC).
• Experience with automated testing frameworks is valued.
• Strong analytical and problem-solving skills.
• Excellent communication and coordination skills.
• Ability to work independently as well as collaboratively within a team.
• Strong organisational skills and attention to detail, particularly when working under pressure and tight deadlines.
• Self-motivated and proactive approach to problem-solving.
• Flexible and adaptable when dealing with technical challenges.
• Passion for technology and willingness to continuously learn and adopt new technologies and frameworks.
• Strong interest in financial markets and Finance-related topics.
• High level of integrity, discipline, transparency and accountability.
• Ability to contribute positively to a culture of good conduct and responsible risk management.

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

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.

Find with us the right opportunity to grow!

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