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Salary
≈ $61k – $111k per year (Estimated)
Location
In office (The Hague)
Seniority
Senior · 6+ years exp
Employment
Full-Time

Confirmed on the employer's own hiring board on Oct 14, 2026. First seen by Alion on Oct 14, 2026. Arhs Group scores B on the Alion truth index.

Overview
Company
Impact
Profile match
Arhs Group is a Luxembourg information technology company founded in 2003. It builds custom software, data platforms and digital systems largely for European Union institutions and public administrations. The group employs thousands of specialists and was acquired by Accenture.

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.

As a Software Developer, you will perform the following tasks/services:

  • Perform the design, implementation, and optimization of scalable AI based software solutions indicated by the client.
  • Research, review, test and suggest for selection by the client of open source AI models to perform specific data processing tasks.
  • Integrate AI models indicated by the client in modular components and build pipelines combining multiple AI based modules.
  • Implement features and fixes in existing software products using Python as programming language.
  • Compile relevant technical documentation, recording technical decisions, and provide usage instructions so others can understand and work with the software concerned.
  • Perform unit and integration tests, finding and fixing defects, and verifying that the software behaves as intended.
  • Perform any other relevant task as requested.

Mandatory:

  • Bachelor's degree
  • English language proficiency at minimum B2 level
  • At least 6 years of experience in the IT field
  • A minimum of 2 years of experience in ICT development of AI based software solutions.
  • Participation in a minimum of 1 project integrating AI models.
  • Participation in a minimum of 1 project involving the integration of AI models in modular components and/or building pipelines combining multiple AI based modules.
  • A minimum of 2 years of experience with: writing clean, efficient, and scalable code using Python as programming languages.
  • Good working knowledge of Python.
  • Good knowledge of AI and machine learning fundamentals.
  • Good knowledge of software architecture, APIs, microservices, and Docker.
  • Good knowledge of software development methodologies (e.g. AGILE).

Desirable:

  • Experience with: performing design, implementation, and optimization of scalable AI based software solutions.
  • A minimum of 1 year of experience with: building test sets and automated evaluations to measure system performance and model accuracy, detecting regressions after model or prompting changes, and complementing standard unit and integration tests.
  • Good knowledge of basic statistics and evaluation metrics (precision, recall, F1, error rates).
  • Ability to participate in multi-lingual meetings, ease of communication.
  • Capability of integration in an international/multi-cultural environment.
  • Ability to cope with fast changing technologies used in application developments.
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