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PRINCIPAL Tech Stack

European IT services group spanning software development, data platforms, and AI prototyping

IT Services and IT Consulting Prague, CZECH REPUBLIC 201–500 employees Founded 2003 Privately Held

Principal is a Prague-based holding company operating IT services across Europe and North America, with ~8,000 people in its portfolio. The stack spans legacy (PHP, SQL Server, Sybase) alongside modern infrastructure (Kubernetes, AWS, GCP, Azure, Snowflake, BigQuery), and includes emerging AI layers (Semantic Kernel, LangChain, AutoGen). Active hiring is concentrated in engineering (6 roles) with seniority skewed senior (5 of 9 roles), while their project list—AI agent prototyping, RAG/CAG pipelines, enterprise data architecture—signals a shift toward AI delivery. Pain points around legacy maintenance and 'getting AI into production' reveal a company threading the needle between sustaining older codebases and scaling newer AI capabilities.

Tech Stack 43 technologies

Core StackJira Confluence Postman PHP SQL Server jQuery Kubernetes AWS Snowflake BigQuery Redshift dbt Apache Airflow Fivetran Python Kafka LangChain Node.js SWIFT iOS Android Zend Framework Sybase GCP Azure SQL Spark Streaming Google Cloud Pub/Sub Semantic Kernel AutoGen+11 more

AdoptingReact Symfony

What PRINCIPAL Is Building

◆Challenges

Maintaining legacy applications
Refactoring legacy code
Getting ai into production
Scaling ai initiatives
Process analysis and optimization

▲Active Projects

Internal application development
Large digital platform development
Erp clone development
Contract management tool development
Poc for top clients
Design data architecture solutions for enterprise customers
Ai agent prototyping
Rag/cag pipeline development
End-to-end ai solution architecture
Creating it requirements

Hiring Activity

Accelerating9 roles · 6 in 30d

Department

Engineering

6

Data

1

Product

1

Seniority

Senior

5

Mid

2

Junior

1

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About PRINCIPAL

Principal was founded in 2003 and operates as a holding company and startup incubator with offices in Prague, Bratislava, Toronto, and Pittsburgh. The group delivers software development, testing, consulting, outsourcing, and team-leasing services to mid-market and enterprise clients across the EU and North America. Services span traditional IT consulting (project management, Agile, bodyshopping) and newer practice areas in data architecture, AI solution design, and RAG/CAG pipeline development. The company invests in and scales portfolio companies and supports internal entrepreneurs.

HeadquartersPrague, CZECH REPUBLIC

Company Size201–500 employees

Founded2003

Hiring MarketsCanada, Romania, Czechia

Frequently Asked Questions

What tech stack does Principal use?

Principal uses Jira, Kubernetes, AWS, GCP, Azure, Snowflake, Python, SQL, and Kafka for core infrastructure; PHP, Node.js, and Android/iOS for application development; and LangChain, Semantic Kernel, and AutoGen for AI prototyping. They are adopting Symfony and React.

What is Principal working on?

Active projects include large digital platform development, AI agent prototyping, RAG/CAG pipeline development, enterprise data architecture design, ERP clone development, and contract management tools. Pain points center on legacy code refactoring and scaling AI initiatives to production.