eSky Group Tech Stack

Multi-brand online travel agency operating 50+ countries with package tours and ancillaries

Travel Arrangements Katowice, Silesian 501–1,000 employees Founded 2004 Privately Held

eSky Group operates a portfolio of online travel brands across 50+ countries, serving 3.3 million customers in 2023. The tech stack reveals a data-driven infrastructure (BigQuery, Python, Kubernetes, Tableau) layered atop a .NET/C# backend, with active work on data governance and platform architecture—suggesting internal scaling challenges as the company integrates Thomas Cook (acquired September 2024) and expands from point-sales (flights, hotels) into packaged offerings. Hiring is concentrated in marketing and support roles, consistent with post-acquisition integration and customer-facing complexity across multiple brands.

Tech Stack 22 technologies

Core StackTableau Google Analytics BigQuery Python Kubernetes GitHub ArgoCD Terraform Helm Docker .NET C# Angular GCP SQL Google Search Console Ahrefs Semrush Screaming Frog ChatGPT Gemini Perplexity

What eSky Group Is Building

◆Challenges

Monitoring add-on services performance
Optimizing pricing and trend utilization
Cost optimization of data platform
Data governance strategy alignment
Data pipeline reliability
Automation of processes
Post-sales inquiries across multiple travel services
Post-sales reservation support in internal tools
Improving operational processes
Optimizing ticket handling

▲Active Projects

Creating distribution policy
Developing pricing policy
Data platform architecture
Data governance strategy
Idp platform
Ci/cd pipeline
Operations panel
Ticket handling optimization
Ai visibility optimization
Content strategy development

Hiring Activity

Accelerating10 roles · 5 in 30d

Department

Marketing

Support

Data

Engineering

Legal

Ops

Product

Seniority

Mid

Senior

Lead

Notable leadership hires: Team Lead

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About eSky Group

eSky Group is a Polish travel technology company founded in 2004, headquartered in Katowice. It owns and operates multiple online travel agency brands including eSky, Thomas Cook (acquired in September 2024), and eDestinos. The business spans flights, hotel bookings, city breaks, holiday packages, travel insurance, car rentals, and transfers. The company holds IATA membership and achieved €18.7 million EBITDA in 2023 while serving 3.3 million customers. It is part-owned by MCI, a private equity fund focused on digital and climate technology in Central and Eastern Europe. Operations span over 50 countries with particular strength in Central and Eastern Europe and South America.

HeadquartersKatowice, Silesian

Company Size501–1,000 employees

Founded2004

Hiring MarketsPoland

Frequently Asked Questions

What tech stack does eSky Group use?

eSky runs on .NET and C# for backend services, Angular for frontend, Kubernetes and Docker for orchestration, and uses Python for data engineering. Analytics and data warehousing rely on BigQuery and Tableau; CI/CD is managed via GitHub, ArgoCD, and Terraform.

What is eSky Group working on?

Current projects include data platform architecture, data governance strategy, CI/CD pipeline improvements, pricing and distribution policy, an IDP platform, operations panel, ticket handling optimization, and content strategy development—indicating internal infrastructure scaling.