InterSystems IRIS Database Administrator / Engineer

HumanInTech; Brussel Hoofdstad; Hybrid; EUR 85,000 - 110,000; Full time

Job summary

HumanInTech is seeking a Senior InterSystems IRIS-focused Database Engineer to design, manage and optimise a critical IRIS environment within a Belgian public-sector transformation project. You will work in a hybrid setting, collaborating with internal and external colleagues to ensure stable, secure information systems.

The role supports backend development in Python, with potential to work across microservices architectures.

Qualifications

• Expert-level knowledge of InterSystems IRIS (or Caché/Ensemble)
• Operational database management experience: journaling, mirroring, ECP, sharding, fail-over configurations
• Expert-level Python, SQL and NoSQL
• Expert-level Linux server management and script automation
• Experience designing databases for microservices or event-driven architectures
• Experience with GitLab CI/CD pipelines and Ansible deployments
• Strong documentation, autonomy, and initiative
• Excellent written and spoken English, Dutch and French

Responsibilities

• Design, manage and optimise a critical InterSystems IRIS database environment
• Perform daily health checks, monitoring, patch management, journaling, WIJ configuration, mirror sets and fail-over testing
• Model data and integrate: designing globals and SQL tables, configuring business services and BPL
• Analyse performance and scalability: index analysis, query tuning, parallel SQL, ECP cache servers and shard clusters
• Document and test database solutions tailored to application needs
• Automate deployments with GitLab CI/CD and Ansible
• Support backend development in Python and other DBMS when needed

Skills

InterSystems IRIS

Python

SQL

NoSQL

Linux administration

GitLab CI/CD

Ansible

Documentation

Education

Bachelor's degree or higher

Tools

GitLab

Ansible

Job description

What you will do

You will design, manage and optimise a critical InterSystems IRIS database environment within a public-sector organisation undergoing digital transformation. Your work supports operational processes, data-driven services and the modernisation of legacy systems.

Your responsibilities include:

• Operational database management: daily health checks, monitoring, patch management, journaling, WIJ configuration, mirror sets and fail-over testing
• Data modelling and integration: designing and managing globals and SQL tables, configuring business services, processes and operations (BPL), including BPL debugging
• Performance and scalability optimisation: index analysis, query tuning, parallel SQL, ECP cache servers and shard clusters
• Designing, implementing, testing and documenting database solutions tailored to application needs
• Automating deployments using GitLab CI/CD pipelines and Ansible
• Supporting backend development in Python
• Where needed, implementing and configuring other DBMS systems

You will work in a multidisciplinary team with a mix of internal and external colleagues, contributing to stable, secure and reliable information systems.

What we are looking for

• Expert-level knowledge of InterSystems IRIS (or Caché/Ensemble), particularly ObjectScript and the Python API for IRIS
• Confirmed experience with operational database management: journaling, mirroring, ECP, sharding and fail-over configurations
• Expert-level proficiency in Python, SQL and NoSQL
• Expert-level experience with Linux server management and script automation
• Expert-level experience designing databases for microservices or event-driven architectures
• Expert-level experience with GitLab CI/CD pipelines and Ansible deployments
• Accuracy and attention to detail, essential given the critical nature of the data
• Autonomy and initiative: you can work independently, propose solutions and adapt quickly
• Strong documentation skills: you document analyses, configurations, performance optimisations and technical decisions clearly and in a structured way
• Good written and verbal communication skills in Dutch, French and English
• Ability to manage priorities in a complex environment with multiple systems, projects and technical dependencies
• A client-focused, solution-oriented attitude: stress-resistant, creative, constructive and methodical

The setting

This assignment runs until the end of December 2026, with the possibility of extension. The start date is as soon as possible.

You will work full-time in a hybrid setting, with a minimum of two days per week on-site in Brussels. Remote work is permitted from your home address or employer address in Belgium.

The working environment is a public-sector organisation focused on digital transformation, modernisation and data-driven service delivery.

You can join us for this assignment as a freelancer or as an employee of HumanInTech. Same role, same team. If you join as an employee, your employment continues beyond this assignment. When it ends, we’ll work together to find your next assignment.

Location: Brussels, hybrid

Work address: Belgium

Employer / contracting party: HumanInTech

Applications close (Brussels time): November 2, 2026 at 1:00 AM

Engagement: Freelance or employed by HumanInTech

Working hours: Full-time

Experience: 3–5 years or more

Education: Bachelor's or more

Published: October 2026