(Senior) Software Developer at Centre for Human Drug Research

We are looking for a (Senior) Software Developer.

About the organization  

CHDR is an independent institute specializing in innovative, early-stage clinical drug research (www.chdr.nl). By combining cutting edge methods and technologies, state-of-the-art facilities, and talented researchers, we help maximize our clients’ success. We are located in Leiden, the Netherlands, and collaborate closely with the University of Leiden and the clinical departments of the LUMC.   

What does the job look like?  

A senior developer takes the lead in designing and implementing major pieces of functionality in Promasys software system. As senior developer you program the lead system, Promasys, based on the created specifications and requirements. You are able to define test cases and run the tests. You are in close contact with the customer for direct support.  

Our Software Development team currently consists of 2 members. We all like to learn and develop, so we share our knowledge. Does this appeal to you, then do not hesitate to contact Jos Hennen at +31 71 524 64 37.   


You are able to understand concepts and develop in-depth working knowledge of the application products, development tools and systems in assigned area of responsibility. Other responsibilities are designing and participating in design review sessions for product systems and subsystems, and developing systems and subsystems based upon design sessions and requirement specifications. 

We are looking for someone who can take the lead in introducing new technologies into the development team and mentor other staff in the proper use of those technologies. Also you must be able to maintain and enhance the quality of the Promasys software system by:  

  • Providing support for users of the software  
  • Analyzing and solving defects in the software  
  • Assisting with installation of production environments  
  • Assisting with customer training and presentations  

You will be developing new or enhancing functionalities for Promasys software by:  

  • Writing functional and technical specifications  

  • Programming the specified functionality  

  • Organizing, creating and performing adequate testing of programmed functionality  

  • Writing technical and user documentation 

  • Improves the infrastructure of the development environment by:  

  • Setting up and supporting a source code control system  

  • Setting up and supporting a defect tracking system  

  • Describe standard operating procedures  

  • Maintaining the web and data server environment  

  • Maintains and develops professional knowledge by:  

  • Attending and participating in applicable company training  

  • Attending educational training and reviewing professional publications  

  • Participating in professional societies  

Required technical skills  

  • 5 years of software development and solution architect experience  

  • Strong working knowledge on Progress OpenEdge ABL, WebSpeed, relational databases; HTML, CSS, XML, JavaScript, jQuery; Xcode and Objective-C 

  • Experience in architecture, algorithms, design and cross-platform commercial software development (expert level) 

  • Experience in developing web services 

  • Knowledge of EDC and experience with applications that comply with 21 CFR Part 11 is preferred 

  • Experience with clinical trial software systems is an advantage 

Preferred soft skills 

  • Proven ability to participate in multiple projects simultaneously and work to tight deadlines 

  • Proven ability to understand complex user requirements and ability to translate to application requirements 

  • Excellent verbal and communication skills with the ability to work with all levels within the organization 

  • Ability to perform independently and under pressure of time constraints 

  • Strong analytical and problem-solving skills, computer proficiency, and ability to follow through with projects from inception to completion 

  • Excellent English written and oral communication skills 

  • Strong work ethics 

  • Team player  

  • Self-starter 

Our offer  

You will join a dynamic, passionate organization and work within a small team in a multi-disciplinary environment. We offer you a pleasant workplace with an open work environment and good secondary employment conditions such as an end of year bonus, development opportunities and all kinds of social events.  

Find the right employees! You can easily upload your vacancies at the My Park section. Please contact the office.