Yellow! GNU

Yellow! GNU — Enterprise Software Engineering & Technology Integration

Yellow! GNU is a Romanian software engineering company backed by Matrix Rom's 30+ years of experience in developing business software.

We help startups, growing businesses and established enterprises design, build, integrate and modernize software systems. Our focus is on practical engineering, dependable delivery and long-term technical partnerships.

Our Core Expertise

Custom Software & Enterprise Applications
Backend platforms, SaaS solutions, business applications, REST APIs, distributed systems and legacy software modernization.

Fintech & Open Banking
Banking API integrations, financial data connectivity, consent management, secure information exchange and financial software platforms.

Web & Mobile Applications
Enterprise portals, customer-facing platforms, management dashboards, native Android and iOS applications, and cross-platform solutions.

Data Engineering & AI

Database integrations, data migration, processing pipelines, AI-assisted matching systems, intelligent workflows and proof-of-concept development.

Our applied AI experience includes an internally used construction resource–product matching solution powered by the Google Gemini API, and a recruitment CV–profile matching proof of concept developed using Google Cloud Vertex AI.

Cloud & Connected Systems
Cloud-native applications, systems integration, IoT platforms and connected-device software.

Technical Experience

Our experience includes Java, Spring Boot, C++, C#, .NET, React, Angular, PHP, Laravel, SQL, Oracle, Cassandra, Kotlin and Swift.

How We Work

We support three main engagement models:

• Independent Project Delivery — Complete software development projects, from architecture and implementation to testing and deployment.
• Dedicated Engineering Teams — Developers who work alongside existing engineering organizations.
• Technical Consulting & Modernization — System architecture, integrations, performance optimization and evolution of existing applications.

Our project experience spans financial services, healthcare, construction, retail, e-commerce, telecommunications and connected technologies.

International Collaboration

Yellow! GNU serves international customers from Romania and works with Software Outsourcing to support business development and collaboration in Israel.

We combine engineering expertise, clear communication and flexible delivery models to help clients build and maintain software that meets real business requirements.

Yellow! GNU — Engineering Expertise. Reliable Delivery.