HubMub
-
Complete Assistance

Java & Cloud AWS Developer

Complete Assistance
Luxembourg · Full-time · Entry
Project Context

We are looking for passionate individuals eager to be part of this new chapter. You will join a dynamic and collaborative environment, contribute to meaningful projects, and help shape the future of AWS oriented Java development practices, always with a long-term vision and a deep commitment to the Group's success.

We are seeking a Senior Software Developer with deep expertise in Java and Spring, who is also proficient with Spring Boot Data, Hibernate, and relational databases. The ideal candidate will have a strong background in designing and developing robust, scalable solutions within AWS environments, and will be comfortable working with Python and Infrastructure as Code (Terraform). You will work closely with data engineers to ensure seamless integration and data flow between systems. Experience with AI tools is a valued plus. You will join the Scrum team of one of our products, collaborating with fellow developers, architects, and business stakeholders to deliver and maintain high-quality software in line with sprint objectives.

Backend Development

In this context, your role will include:

  • 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:

Mandatory skills

  • 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.

Valued assets

  • Experience collaborating with data engineering teams and integrating backend systems with data pipelines.
  • Experience with AI tools or frameworks.
  • 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.

And also:

  • An agile mind-set. It's not a buzz word: agility is about collaboration, growing together, supporting more junior team members, intellectual humility and strong desire to learn
  • Proven ability to deliver against deadlines with a strong analytical and problem-solving skills
  • Detail-oriented with a focus on quality and performance
  • Ability to work effectively in an Agile environment using tools like Jira
  • Excellent communication skills
  • Fluent in English and/or French is a plus
  • Team player with a proactive approach to challenges and continuous improvement.

Key Skills

Ranked by relevance

spring boot java terraform python aws infrastructure as code ai tools gitlab cloud cicd jira sqs ecs ai s3 containerization microservices kubernetes postgresql docker devops oracle scrum
Login to Apply
🇱🇺

Country Guide

Luxembourg

High-value international enterprise and fintech hub

Posted
Jan 27, 2026
Type
Full-time
Level
Entry
Location
Luxembourg
Company
Complete Assistance

Industries

Outsourcing/Offshoring

Categories

Engineering Information Technology

Related Jobs

3 roles aligned with this opportunity

View all jobs
View Job Details
Complete Assistance
Related

Développeur Java Full Stack

2026-03-31

Full-time
Not Applicable
Luxembourg
Outsourcing/Offshoring
Engineering
View Job Details
Complete Assistance
Related

Data Scientist

2026-04-01

Full-time
Not Applicable
Luxembourg
Outsourcing/Offshoring
Engineering
View Job Details
Complete Assistance
Related

Data Scientist

2026-03-05

Full-time
Not Applicable
Luxembourg
Outsourcing/Offshoring
Engineering