SquareDev Tech Stack

AI application infrastructure with built-in safety monitoring and security

Software Development Brussels, Brussels 11–50 employees Founded 2018 Privately Held

SquareDev operates a data and AI platform stack centered on Python, Spark, dbt, Airflow, and Databricks, with deep security tooling (SIEM, XDR, SOAR, EDR, CSPM, IAM) woven throughout. The hiring mix—heavily weighted to senior engineers and security specialists—reflects their core challenge: scaling AI infrastructure safely. Active projects span data pipeline optimization, cloud hardening, and legacy system migration, all pointing to a company building developer-facing AI ops tools where reliability and auditability matter as much as performance.

Tech Stack 77 technologies

Core StackPython BigQuery Delta Lake Apache Spark dbt Apache Airflow Prefect Databricks Snowflake AWS Terraform ServiceNow JavaScript FastAPI React TypeScript IBM Watson IBM Business Process Manager SQL Fabric Git SIEM XDR SOAR EDR CSPM IAM Azure GCP PowerShell+44 more

What SquareDev Is Building

◆Challenges

Strengthening cyber security team
Migrating legacy repositories
Maintaining automated regression testing suite
Investigating test failures
Ensuring system stability
Security vulnerabilities

▲Active Projects

Analytics and ai data pipelines
Data lake/warehouse maintenance
Etl/elt workflow optimization
Security platform design and deployment
Automation workflow development
Cloud hardening implementation
System integration and migration from legacy repositories
Scalable data exchange and publication services
Metadata standards for digital preservation
Automated regression testing suite

Hiring Activity

Accelerating15 roles · 10 in 30d

Department

Engineering

Security

Data

Seniority

Senior

Mid

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About SquareDev

SquareDev, founded in 2018 and headquartered in Brussels, provides a platform for developers to build and operate AI applications with integrated safety, observability, and monitoring. The product targets engineering teams building production AI systems, offering frameworks and infrastructure designed around explainability, responsible AI, and operational governance. The company operates lean (11–50 employees) with concentrated technical depth: the engineering and security hiring focus, paired with active work on cloud security hardening and data pipeline reliability, suggests SquareDev is solving problems in the AI ops and governance layer where traditional ML platforms fall short.

HeadquartersBrussels, Brussels

Company Size11–50 employees

Founded2018

Hiring MarketsGreece, Belgium, Luxembourg

Frequently Asked Questions

What tech stack does SquareDev use?

Python, SQL, Apache Spark, dbt, Apache Airflow, Databricks, Snowflake, BigQuery, Delta Lake, Prefect, React, FastAPI, TypeScript, and AWS/Azure/GCP. Security stack includes SIEM, XDR, SOAR, EDR, CSPM, and IAM tools.

What is SquareDev working on?

Core projects include AI and analytics data pipelines, ETL/ELT workflow optimization, data lake/warehouse maintenance, security platform deployment, cloud hardening, legacy repository migration, and automated regression testing infrastructure.