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Keystone Solutions Tech Stack

IT services and custom software for enterprise digital transformation

Information Technology & Services Brussels, Brussels 51–200 employees Founded 2014 Privately Held

Keystone Solutions delivers IT consulting, custom software, and hyperautomation services to mid-market enterprises in Belgium. The tech stack—anchored in .NET, Azure, and Kubernetes—reveals a company executing large-scale platform migrations: they're moving SQL Server workloads to Databricks, adopting OpenAI, and shipping legacy system overhauls into modular API-driven architectures. Hiring is accelerating across engineering (21 open roles) and security (11), with a 27-senior-to-2-junior ratio indicating execution-heavy work rather than team-building.

Tech Stack 100 technologies

Core Stack.NET Kubernetes Postman Databricks Delta Lake Unity Catalog Apache Spark Python Azure Data Factory ServiceNow Java Fortinet Palo Alto Networks C# SQL Server Docker UML BPMN OpenAPI Enterprise Architect draw.io Azure SQL SailPoint Azure Entra ID Spring Framework Check Point ASP.NET Web API Entity Framework Core Dapper+64 more

AdoptingDatabricks OpenAI

ReplacingSQL Server SAS

What Keystone Solutions Is Building

◆Challenges

Data migration to databricks
Central governance compliance
Detecting cyber threats
Maintaining legacy applications
Ensuring compliance with iso 27001
Migrating legacy .net 8 to .net 10
Legacy system transformation
Digital presence enhancement
Compliance with dora requirements
Migrating legacy etl to cloud

▲Active Projects

Adobe campaign implementation
Legacy system transformation to modular api-driven architecture
Transforming data flows between sources and visualization layers
Horizon 2026 program
Migration from sql server to databricks
Deployment of infrastructure on azure
Deploy unified iam platform
Implement automated user lifecycle
Greenfield deployments
Brownfield integrations

Hiring Activity

Accelerating50 roles · 25 in 30d

Department

Engineering

21

Security

11

Data

7

Marketing

4

Ops

2

Consulting

1

Finance

1

HR

1

Seniority

Senior

27

Mid

22

Junior

2

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About Keystone Solutions

Keystone Solutions is a Brussels-based IT services provider founded in 2014, operating at 51–200 employees. The company serves enterprises through four service lines: IT consulting (strategy and digital transformation), custom software development, IT security (risk assessment and incident response), and hyperautomation (RPA, AI, and ML-driven process optimization). Active engagements span Adobe Campaign implementations, legacy .NET migrations, SQL Server-to-Databricks data warehouse moves, and unified identity platform deployments. The hiring velocity and project mix signal a growing practice around infrastructure modernization and compliance (ISO 27001, DORA).

HeadquartersBrussels, Brussels

Company Size51–200 employees

Founded2014

Hiring MarketsBelgium

Frequently Asked Questions

What tech stack does Keystone Solutions use?

Primary: .NET, C#, Azure, SQL Server, Kubernetes, Docker. Data layer: Databricks, Delta Lake, Apache Spark, Azure Data Factory. Security: SailPoint, Palo Alto Networks, Fortinet. Now adopting Databricks and OpenAI; migrating off SQL Server and SAS.

What is Keystone Solutions working on?

Major projects include SQL Server to Databricks migration, legacy .NET system transformation to API-driven architecture, Azure infrastructure deployment, unified IAM platform rollout, automated user lifecycle management, and Adobe Campaign implementation.