This research presents the design of Career Counselling Information System (CCIS), a web-based career counselling information system. The research aims to reveal a design framework for a web-based career information system integrated with universities' labour market performance to support career guidance processes. This research is structured as a design-based research approach. This research presents the results of the first cycle of design-based research. The research follows a five-step process: (1) analysis, (2) design, (3) development, (4) implementation, and (5) evaluation. The analysis phase identifies indicators, universities/departments, and labour market profiles. The design phase configures the system architecture. The development phase creates the platform. A pilot study involved 30 career counsellors after CCIS development. The system was examined with 14884 career counsellors during implementation. Feedback from 40 career counsellors guided improvements. CCIS digitally transforms Türkiye's universities and departments labour market performance profiles. Career counsellors highlight CCIS indicators as essential for career decisions. The research's performance indicators and systems are expected to enrich career guidance, labour market information, and career information system literature.