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Onelity Tech Stack

European nearshore software development and modernization

IT Services and IT Consulting Cologne 51–200 employees Founded 2020 Privately Held

Onelity is a nearshore software development firm based in Cologne with operations in Greece, focused on legacy modernization and custom solutions for European clients. The tech stack—PHP, Laravel, Angular, Node.js, PostgreSQL, AWS—reflects a web-first modernization shop; the active project list (PHP monolith refactoring, identity platforms, microservices) and pain-point overlap confirm that migrating clients off legacy systems is the core operational bottleneck. Hiring is concentrated in Greece and weighted toward senior engineers, suggesting both geographic cost optimization and the need for experienced leads on complex refactoring work.

Tech Stack 14 technologies

Core StackAngular PHP Laravel Jest Node.js Prisma Redis RabbitMQ AWS PostgreSQL C# Jasmine Fastify NET Core

What Onelity Is Building

◆Challenges

Legacy php monolith modernization
Time-sensitive client demands
Migrating legacy php monolith

▲Active Projects

Modernizing legacy php monolith
Integrating third-party payments
Next-generation identity management platform
Core microservices for authentication and real-time access control
Building modules and 3rd party integrations
Feature implementation for european stakeholders
Integration with third-party systems

Hiring Activity

Accelerating5 roles · 2 in 30d

Department

Engineering

5

Seniority

Senior

3

Mid

2

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About Onelity

Onelity delivers software development and nearshore services to mid-market and enterprise clients across Europe. Founded in 2020, the company operates from Cologne, Germany, and Thessaloniki, Greece, positioning itself as a nearshore alternative to offshore outsourcing. Core service lines include custom application development, legacy system modernization, and professional training (Agile, ISTQB testing, CI/CD). The product portfolio centers on replacing aging monoliths with microservices-based architectures, integrating third-party payment and identity systems, and building real-time access control platforms for European stakeholders.

HeadquartersCologne

Company Size51–200 employees

Founded2020

Hiring MarketsGreece

Frequently Asked Questions

What tech stack does Onelity use?

Onelity's primary stack includes PHP, Laravel, Angular, Node.js, Fastify, Prisma, PostgreSQL, Redis, RabbitMQ, AWS, and C# / .NET Core. The mix reflects web-centric development with both legacy (PHP/Laravel) and modern (Node.js microservices, Angular frontend) layers.

What is Onelity working on?

Active projects include modernizing legacy PHP monoliths into microservices, building next-generation identity management platforms, implementing authentication and real-time access control systems, and integrating third-party payment and system connectors for European clients.