Will you be our new Back-end developer?

Would you like to boost your career at a growing company with a high focus on personal development?
Send your CV and motivation to jobs@copernica.com

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.


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.


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.

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.

And many more! Take a look at our Github page .

Required skills

  • PHP or C++;
  • OOP;
  • Fluent English in both spoken and written form.

Welcomed skills

  • Familiarity with SOLID principles;
  • MySQL;
  • MongoDB;
  • WebSockets;
  • Docker;
  • Kubernetes;
  • RabbitMQ;
  • Linux (we like Ubuntu).

Salary: €3500 - €5400

What can you expect from Copernica?

Hybrid work

Hybrid work

Pension premium

50% employer contribution pension premium

Travel allowance

Full travel allowance


25 vacation days

Training budget

Generous training budget

Career opportunities

Career opportunities


Nice trips


Virtual shares in Copernica

Hybrid work

At Copernica we think it is important that you feel comfortable in your own skin. That is why you get the opportunity to work from home, where your workplace is facilitated by Copernica. Of course you are always welcome at our cozy office, at one of the most beautiful locations in Amsterdam (next to Central Station). In consultation with your manager and your teammates, there is a lot of flexibility to plan your working hours yourself.

Who will be your colleagues?

Our team is culturally diverse and consists of approximately 40 entrepreneurial, innovative, passionate and highly skilled professionals. The company culture is informal. To strengthen our team spirit in this time of hybrid work, we regularly organize fun activities and events in the Netherlands and abroad.

Meet your new colleagues

Interested or do you want to know more?

Do you have questions about this vacancy or do you want to join our team? Please contact our HR coordinator Nikki.

Nikki Prass

About Copernica

Since 2000, Copernica has been the market leader in technical solutions for email marketing and sending bulk email campaigns for SMEs in the Netherlands. Copernica's customers appreciate the reliability of the software and hardware and the customer focus of all employees in the organization. The company is growing steadily and is continuously looking for new talents for all departments. If you know someone who would be a good fit for Copernica, feel free to get in touch.

Copernica products

With our SMTP servers and Mail Transfer Agent, we also take care of transactional emails and very high email volumes.

Copernica logo

Our Copernica Marketing Suite is a complete and simple web application for marketers to design and send email templates using our drag-and-drop template editor.

Read more about Copernica Marketing Suite
MailerQ logo

MailerQ is our flexible and super fast MTA (Mail Transfer Agent) that uses message queues and JSON, making it easy to manage a massive email flow.

Read more on the MailerQ website
SMTPeter logo

SMTPeter is our email service for developers and has an extensive API to send emails easily, securely and quickly.

Read more on the SMTPeter website

Apply directly

Do you recognize yourself in this role and do you want to strengthen our great team? Send your CV and motivation to jobs@copernica.com.

Employment agencies should not respond to this vacancy.