An engineering signature (whether traditional or electronic) is the most important form of assuming professional responsibility, carrying legal, professional, and financial consequences. By signing a document, the engineer certifies that the documentation complies with applicable legislation, professional standards, and safety requirements.
Areas of responsibility associated with an engineering signature
Professional and technical responsibility
The engineer is responsible for ensuring that the design is technically feasible, safe, and compliant with applicable technological requirements.
Legal compliance
The designer is responsible for ensuring that the documentation complies with all relevant legislation, including regulatory and authority requirements.
Copyright responsibility
By signing the documentation, the engineer acknowledges the design as an intellectual work and assumes responsibility for legal warranties related to authorship.
Financial liability (compensation for damages)
If damage occurs due to faulty design or incorrect certification through the signature, the engineer may be held financially liable for compensation.
Ethical and disciplinary responsibility
Violation of the rules or ethical standards of the Chamber of Engineers may result in disciplinary proceedings.

Responsibilities of the Designer
The designer is responsible for
Ensuring that the documentation complies with applicable legislation and that its technical content is professionally prepared.
The designer is also responsible for selecting the discipline-specific designers, interior designers, and landscape architects involved in the project, as well as coordinating their work and ensuring the proper integration of their designs.
Furthermore, the designer must ensure that they maintain professional liability insurance that provides coverage for potential damages arising from their professional activities.
All above might vary from country to country. On the other hand we all experience the power of signature on hazardous area classifications, Ex certificates, Ex inspections, or even on exposion protection document.
...
The BLOG post above addresses all in charge, and yes - we shall have to deal with that responsibility.
Keep up the good work!
Note: Your comment will only appear on the site after review. Your email address will not be visible, only your name and comment.