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Back-end Developer

Copernica · Amsterdam

Amsterdam · RemoteFull-TimePosted Jan 8, 2026

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Job description

Copernica is looking for junior to senior Back-end Developers. You will create, maintain, and test databases, integrations, APIs, and other back-end processes for our principal products: Marketing Suite, MailerQ, and SMTPeter.

Technologies

Our back end is primarily built with PHP, and uses C++ extensions for the components where speed matters most. Our software deals with large amounts of data on a daily basis, which often requires that we build custom software solutions. That is why we create and maintain many libraries, both in-house, and open source, such as our own MapReduce framework Yothalot , our C++ library for developing PHP extensions and many more.

What we offer you

Flexibility with regard to working hours;

The possibility to work from home;

A training budget;

Expense allowance for travel, internet, and telephone;

A beautiful office situated directly beside Amsterdam Central Station;

Social events;

Pension scheme.

Environment

We put great effort into creating maintainable code with best programming practices in mind. To that end, we have created a feedback-rich environment that allows you to work with experienced colleagues, learn useful skills and stay updated with relevant technologies. At Copernica, we prefer to work smart rather than hard. Where possible, we automate processes and organize them as efficiently as we can. How does this manifest further? Our colleagues:

Are honest, direct, and straightforward

Are independent in thought and action

Can give and receive feedback

Are pragmatic problem solvers

Copernica's open source libraries

PHP-JS : A bridge between PHP and JavaScript. This library allows for executing JavaScript code right from PHP code and to share variables between them.

PHP-CPP : A well documented C++ library for developing PHP extensions. Extensions built on top of PHP-CPP are easy to understand and simple to maintain. No more deep knowledge of the Zend engine and pointer manipulation required.

AMQP-CPP : A C++ library for asynchronous non-blocking communication with RabbitMQ. The library can be used to parse incoming data from a RabbitMQ server and to generate frames that can be sent to a RabbitMQ server.

REACT-CPP : An event loop library that utilizes the C++ lambda functions to notify you when there is activity on a filedescriptor or on a timer. Internally. It is a wrapper around the libev library and does therefore also depend on that library.

Take a look at our Github page for more information.

Requirements: Required skills

PHP or C++;

Experience with Object Oriented Programming;

Fluent English in both spoken and written form.

Preferred skills

Familiarity with SOLID principles;

MySQL;

MongoDB;

WebSockets;

Docker;

Kubernetes;

RabbitMQ;

Linux (we like Ubuntu).

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