Back-End Developer

About the role

At Invertus, we don’t just develop eCommerce platforms—we shape the future of online shopping. From building scalable solutions for global merchants to creating integrations that make everyday transactions seamless, we’re committed to driving innovation.

With offices in Copenhagen and Kaunas and a growing presence in the US, South-East Asia, and the Middle East, we’re scaling fast—but our success is built on our people. If you’re a mid-to-senior Back-End Developer who thrives on solving complex problems and building robust systems, we’d love to have you on board.

Your Core Responsibilities as a Back-End Developer:

Build and maintain scalable back-end solutions for global eCommerce projects.
Collaborate with cross-functional teams to design technical solutions that solve real-world problems.
Optimize applications for performance, scalability, and reliability.
Develop automated integration tests to ensure seamless functionality.
Work with external APIs and manage queue systems like RabbitMQ to enable smooth processes.

What We’re Looking For in a Back-End Developer:

Proficiency in PHP (8.x) with experience in the Symfony framework.
Expertise in databases: MySQL and MongoDB; familiarity with ElasticSearch/OpenSearch is a plus.
Basic knowledge of JavaScript, CSS, and HTML.
Hands-on experience with Docker and automated testing tools.
Excellent verbal and written communication skills in English.
Bonus: Knowledge of AWS or experience with platforms like Sylius or PrestaShop.

What We Offer:

A monthly salary of €2,455–€4,959 gross, tailored to your experience.
Opportunities to collaborate with leading global brands and decision-makers.
A hybrid work model: 3 days in our modern Kaunas office and 2 days remote.
An inspiring culture built on ownership, accountability, and transparency.

Back-End Developer

About the role

Your Core Responsibilities as a Back-End Developer:

What We’re Looking For in a Back-End Developer:

What We Offer:

Join our team