Full Stack Developer (Cloud / AWS)

Arηs Group, Part of Accenture, specializes in the management of complex public sector IT projects, including systems integration, informatics and analytics, solution implementation and program management. Our team helps lead clients through digital and information systems design, bringing expertise in a variety of areas ranging from software development, data science and security management to machine learning, cloud, and mobile development.

Arηs Group was acquired by Accenture in July 2024.

Arηs Group, Part of Accenture, is looking for a Full‑Stack Developer (Cloud / AWS) for one of its clients in Brussels, a key player in the Belgian Health Insurance domain.

Context

You will join a large-scale digital initiative focused on strengthening prevention through the use of validated scientific evidence and recognized clinical guidelines. The objective is to design and deliver a modern platform capable of identifying and generating personalized prevention signals for end users and healthcare stakeholders, covering all stages of prevention.

To support this initiative, a new dynamic and autonomous team is being set up. The platform is built on cloud-native technologies and requires experienced engineers to develop and maintain its various application components within a flexible, hybrid working environment.

Role & Responsibilities

• Design, develop, and maintain backend and frontend components of the platform
• Translate business requirements into pragmatic, scalable, and maintainable technical solutions
• Contribute across the full software lifecycle, from analysis and development to quality assurance and optimization
• Take an active role in architectural discussions and technical decision-making
• Apply DevOps principles, including automation, quality control, and cost optimization
• Ensure high code quality through best practices such as test-driven development (TDD)
• Collaborate closely with multidisciplinary team members in an agile environment
• Support continuous improvement of processes, tools, and solutions

Your Profile

• Strong analytical and problem-solving skills, with the ability to synthesize complex information
• Proactive, autonomous, and entrepreneurial mindset, with a strong sense of ownership
• Excellent communication skills, able to interact effectively with both business and IT stakeholders
• Flexible and solution-oriented, with the ability to perform under deadlines
• Quality-driven and customer-focused attitude
• Team player who can also work independently
• Comfortable working in an agile (Scrum) environment
• Fluent in either Dutch or French. Good passive understanding of the other national language
• Professional working proficiency in English is required

Technical Skills

• Senior-level experience as a full-stack software engineer with architectural exposure
• Strong experience with cloud-based environments, particularly AWS
• Hands-on development experience with:• TypeScript
• Python
• Angular (frontend)

• Familiarity with DevOps practices and CI/CD pipelines
• Experience with test-driven development (TDD) and continuous improvement practices
• Knowledge of the following technologies is considered a strong asset:• AWS services such as Aurora, DynamoDB, Athena
• Data processing technologies (Apache Parquet, ETL pipelines, Airflow)
• Big data processing

• Proven experience in projects with high performance requirements and large transaction volumes
• Relevant certifications (e.g. AWS Associate Developer) are a plus

WHAT´S IN IT FOR YOU?

• We value your contribution, which is why we offer a competitive and attractive salary package.
• Your wellbeing is our priority – from day one, you are covered by a comprehensive health insurance plan.
• Benefit from a convenient meal allowance provided through a ticket restaurant card.
• Take part in impactful projects that make a difference at both the national and European level.
• Continue to grow with us through in-house training sessions and a wide range of online learning opportunities.
• Join a collaborative culture where we regularly celebrate achievements and milestones together.