CERTUS Port Automation is a leading technology company in innovative automation solutions for container and intermodal terminals worldwide. Headquartered out of Sliedrecht, (Rotterdam Area), we also have an R&D facility in Israel and partners companies in the USA, Dubai, UAE and Brazil.

Our systems empower marine and railway terminal operators to increase their performance while reducing operating costs. Deployed in over 50+ countries, terminal operators worldwide have successfully optimized their gate, crane and rail processes using our advanced OCR technology, kiosk systems and advanced software.

We thrive on innovation, providing unique business solutions to container and intermodal terminals worldwide. Our work culture is where innovation is expected, hard work is valued, and creativity is rewarded. All this within a no-nonsense organization with diverse disciplines and a great team spirit.

The operation within maritime and intermodal terminals is highly automated. The individual system solutions for terminal operations are accompanied by complex logic, which together result in optimization the use of CHE (container handling equipment), (IT) systems and resources.

CERTUS standard software platform PASS (Port Automation & Security System) is designed as middleware between the various subsystems and a (TOS) Terminal Operating System. The CERTUS PASS system runs on 50+ terminals at 30 ports in 25 countries around the world. For our customers we deliver 24/7 remote and local support on hardware and software.

For more information


Within our location at Sliedrecht (Rotterdam Area) we work with a dedicated team of in total 45 people.


We are looking for a dynamic individual with at least 6 years or more demonstrable experience as a developer and a higher professional education level.

We are looking for someone who is ambitious and professional and can thrive in a challenging environment.

In addition, we are looking for someone who wants to develop himself further and is enthusiastic about expanding and sharing his knowledge. You are someone who has insight and analytical skills and is able to oversee an application in the larger picture. Above all, you have to be someone who also has both feet on the ground and has a pragmatic approach. You have to have a service-oriented attitude, both to the customers and to your colleagues. We also ask for a proactive attitude towards improving our products.

A nice aspect of the function is that you occasionally have the opportunity to visit abroad. This can be an international destination and you go with a colleague consultant and hardware engineer to a customer to test on location and deliver a project. This involves a short stay of one week to 2 weeks and always in good consultation.

Since a lot of communication is in English, you are expected to have a good level of English in word and writing.


The Backend Developer will develop the architectural en technical base for (complex) systems. The Backend Developer works as a twin unit with the Frontend Developer(s), where the Frontend Developer concentrates on functionality and (user interaction) design, and the Backend Developer provides and creates the necessary datalayer and businesslogics. The Backend Developer is service providing to the Frontend Developer, as the functionality and user interaction in the products to deliver form the starting point.

Purpose of the position

  • Developing and maintaining the (backend of) higl level systems in which the functional demands of the client are key.
  • Development of complex backend codes and delivering modules.
  • Creating, writing and delivering of technical designs, supported by the lead developer.
  • Contributing in the delivering of products with a team of developers.
  • Contributing at coaching and supporting junior and medior developers.


  • Design

Checking the feasibility of functional designs, both for the technical aspects and the available architecture and infrastructure.

Setting up the draft and updates of technical documentation.

Budgeting of the development process based on (functional) specifications.

  • Realization and testing

Developing of backend code for systems and setting up test- and production facilities.

Guarding the consistency between the functional specifications and the actual realized systems.

Supporting setting up and executing all testplans and system tests.

Guarding source code and documentation conform the rules and frameworks set up for version control. Executing code reviews.

  • Support

Offering 2nd  or 3rd line support and advice and assisting in operational trouble shooting.

Updating programs in order to prevent and solve operational problems.

Advising and supporting 1st line support

  • Team

Supporting and coaching colleagues in the development team in executing their tasks.

Follow the internal guidelines towards quality, arbo and environmental care.


At least 6 years of demonstrable experience with programming in C#. This can be done through work within a fixed job and / or on the basis of completed projects.

Minimum of 6 years of proven experience in setting up IT systems and technical system documentation.

Minimum higher professional education level; Bsc or Msc

Good level of English language in word and writing

Training and knowledge of the following issues is a plus:

• Bachelor or Master in informatics

• Knowledge of the Maritime and Offshore sector

• Knowledge of the logistics sector

Specific knowledge disired

OOP; Complex SQL instructions; .NET; Realtime webtechniques (SignalR/Websockets); Microsoft Service Architectures; conceptual knowledge of hardwareplatforms, operating systems and protocols; conceptual knowledge of XML/HTML/CSS unittests/program tests.

You will work (among more) with:

• The latest versions of .Net

• The latest versions of Visual Studio

• Raspberry Pi (Windows IOT)

• Microsoft SQL Server

• Microservices (WCF / TCP-IP / REST / SOAP / Web sockets)



• HTML5 / XML / XSLT / XSD / XPath / WSDL / XHTML / JSON techniques

• Rabbit MQ

• NHibernate

• ReSharper

• Unit tests

• TeamCity

• Git


  • Must be willing to travel based on business needs and have the ability to work extended hours under tight deadlines to successfully meet objectives
  • Typically, a CERTUS Consultant can travel internationally for a period of 1 to 2 weeks
  • Positive enjoyment of teamwork especially in relation to multi-disciplinary virtual teams in disparate geographical locations


General Corporate competences:

Co-workership: when interacting with colleagues, showing them that you recognize their feelings, attitude and motivation and that you are open for that. Willing to provide your colleagues with advice and action, even when it is not directly in favour of your own proceedings.

Reliability: delivering on promises and accepting its consequences. When you do not succeed, you take the consequences for your own account and eliminate negative consequences for others as good as possible.

Loyalty: to comply with the policy and the interests of the organisation and the group of which you are a part. To support, or at least do no harm to, the position of your own devision in dilemmas where those interests come face to face with others.

Initiative: to seek opportunities and take action thereon. Rather act on your own initiative than to wait passively.

Job Related competences:

Analysis of problems: to analyze a problem and its different components; to describe its origin and the internal coherence. To trace possible causes, to collect relevant data.

Quality orientation: To be high demanding of the quality of your work, as well as others’; to constantly pursue improvements.

Handling details: to show attention for details; to be able to handle detailled information effectively during a long time.

Customer focus: researching the needs and demands of the customer and to show you think and act from that perspective.

Cooperation: to contribute actively to cooperation on common goals, even when this does not directly serve a personal interest; therefore promoting mutual communication

Result orientation: to aim actions and decisions at actual realization of intended results.

Organisational skills: to identify and obtain the people and recources that are needed for a plan; to put these to such use that intended results will effectively be achieved

Learning orientation: to show interest in new information, to take this in and to practice it effectively. You keep your knowledge concerning your job up to date.

Conceptual thinking: to provide a better insight in problems or situations by thinking of them in a wider spectrum or by linking them with other information.

Communication: to communicate ideas and information in clear and correct language, so that the essence is being understood by others.

Adaptability: continue to act effectively by adapting to changing environments, tasks, responsibilities or people.

Self-dependence: to be able to work effectively during a longer period of time without supervision, where both production and quality remain on level; and whereby, in case of disturbances or deviations, adequate action is provided.

Creativity: to provide original solutions for problems that relate to your function. To think of new methods.

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