Senior software developer, Java & AWS Cloud H/F
Veröffentlicht am 04/02/2026
Hays Luxembourg
- Luxemburg
- IT Entwicklung
- Zwischen 500 und 600 € / Monat
We are looking for our client, a major company in the banking sector in Luxembourg, a Senior Software Developer Java & AWS Cloud.
Backend Development :
- Design, develop, and maintain backend services and APIs using Java 21, Spring Boot with either Spring Boot Data, Hibernate or pure JDBC database connectors.
- Integrate and optimize solutions with Oracle or Aurora PostgreSQL databases.
- Ensure robust, secure, and scalable code following established architecture and best practices.
Cloud & DevOps :
- Build and deploy applications on AWS, utilizing services such as ECS, Lambda, StepFunction, RDS, S3, SQS, SNS and CloudWatch.
- Develop and manage Infrastructure as Code using Terraform, ensuring reliable and repeatable cloud environments.
- Participate in CI/CD pipeline setup and maintenance.
Python & Cross-Technology Development :
- Handle Python developments as required for automation, data processing, or integration tasks.
- Collaborate with data engineers to ensure effective data integration, exchange, and transformation between systems.
Collaboration & Support :
- Work closely with cross-functional teams to gather requirements, design solutions, and deliver features.
- Participate in troubleshooting, monitoring, and user support activities as part of the product team.
- Mentor junior team members and contribute to a culture of continuous improvement.
Continuous Improvement :
- Stay up to date with the latest industry trends, technologies, and best practices in software development, cloud, and DevOps.
- Proactively suggest improvements to enhance system performance, scalability, and maintainability.
Our ideal candidates should have :
- University degree in Computer Science, Engineering, or a related discipline.
- Proven experience in backend development with Java 21, Spring, Spring Boot Data, Hibernate, and pure JDBC.
- Strong command of relational databases.
- Proven experience developing and deploying solutions in AWS environments (ECS, Lambda, StepFunction, RDS, S3, SQS, SNS, CloudWatch, etc.).
- Proficient in Python for scripting and backend tasks.
- Experience managing infrastructure using Terraform.
- Solid understanding of RESTful API design, microservices architecture, and secure coding practices.
- Experience with version control tools such as GitHub or GitLab.
- Familiarity with CI/CD tools and practices.
- Experience with version control tools such as GitHub or GitLab
- Knowledge of containerization (Docker, Kubernetes) is a plus.
- AWS certification (e.g. Solutions Architect or Developer) is preferred.
- Experience with Agile methodologies and tools such as Jira.
- Knowledge of monitoring and alerting solutions.
- Fluent in English, Portuguese and/or French is a plus
- Team player with a proactive approach to challenges and continuous improvement.
If you are passionate about the banking sector, have good interpersonal skills, and are looking for a new and rewarding opportunity, send us your resume now.