Answer: Certifications are one of the most common alternatives used by organizations when looking for competent personnel, as well as for professionals to demonstrate their knowledge and, for some certifications, experience. So, getting certified can improve your career opportunities.
Regarding if there are better certifications than those related to ISO 27001, this will depend of your objectives. There are certifications focused on technical aspects of information security (e.g., CISSP), certifications covering the link between information security and the business (with a wider approach on information security management) (e.g., CISM). ISO 27001 certifications focus on the requirements of the ISO 27001 standard for the implementation of information security management.
2) If yes, then should I go with ISO 27001 Lead Implementer certification first before I approach the Lead Auditor certification?
Answer: There is no specific order to pursue ISO 27001 certifications. This decision will depend of your career objectives. If you plan to work on an information Security Management System certification process, then you should consider the Lead Implementer certification. If you plan to ensure the operation of an ISMS, then you should consider the Lead Auditor certification.