Senior Java Software Engineer

Thales Group; Paço de Arcos; Hybrid; EUR 48,000 - 72,000; Full time

Job summary

Thales Group in Paço de Arcos, Portugal is seeking a Senior Java Software Engineer to design and develop robust Java applications and scalable architectures. The role emphasizes secure coding, unit testing, and collaboration with cross-functional teams.

You will work in a hybrid model with Java 21, Spring Boot, and Agile practices, requiring strong English communication and continuous learning to stay current with evolving technologies.

Qualifications

• Bachelor degree in Engineering or similar field.
• Around 3 years of experience with Java and Spring Boot (mandatory).
• Experience in software development and software engineering.
• Comfortable with Agile Methodology.
• Written and oral proficiency in English.

Responsibilities

• Develop high-quality, maintainable, and secure Java applications (Java 21).
• Design scalable and efficient software architectures.
• Write, execute, and maintain unit tests, troubleshoot and resolve bugs.
• Collaborate closely with cross-functional teams.
• Create and maintain clear technical documentation and stay updated with emerging technologies and best practices.

Skills

Java

Agile

English proficiency

Education

Bachelor degree in Engineering or similar

Tools

Spring Boot

Job description

Senior Java Software Engineer### Senior Java Software EngineerApply: Hybrid: Paço de Arcos - Q45: Full time: Posted Today: R0347029Location: Paço de Arcos - Q45, PortugalFor more than 35 years, Thales acts in Portugal for global **Defense and Aerospace markets** and promotes and delivers innovative solutions that enhance its customer’s critical systems ́ security, on land, sea, air, space and cyberspace, through a technical team of excellence. If you want to be part of **Thales in Portugal** and have experience as a **Software Developer** with **Java**, this is the right opportunity for you! **Responsibilities:*** Develop high-quality, maintainable, and secure Java applications (Java 21);* Design scalable and efficient software architectures;* Write, execute, and maintain unit tests, troubleshoot and resolve bugs;* Collaborate closely with cross-functional teams;* Create and maintain clear technical documentation and stay updated with emerging technologies and best practices. **Requirements:*** Bachelor degree in Engineering or similar area;* Around 3 years of experience with JAVA and Springboot (mandatory);* Experience in software development and software engineering;* Comfortable with Agile Methodology;* Written and Oral proficiency in English. The Group invests more than €4.5 billion per year in Research & Development in key areas, particularly for critical environments, such as Artificial Intelligence, cybersecurity, quantum and cloud technologies. In **2025,** the Group generated **sales of €22.1 billion.**For our more than **85,000 employees** in 65 countries we open up visionary perspectives, realise individual career paths and enable creative freedom. This is achieved with courage, versatility and the firm intention to make the demanding challenges of our time safer and more inclusive. **With our sustainable value-focused management we support diversity actively.** **If you are interested send you CV in English**. **Say HI\\* – Your journey to us**At times of change our international teams are ready to meet the complexity of today with the industry-leading technologies of tomorrow. Will you be part of it? Your contact **Jéssica Carrasqueira** is looking forward to your online application on our Career portal. Jéssica Carrasqueira – Talent Acquisition Partner#LI-JC1 #LI-HYBRID \\*Human Intelligence