Score for Custom Job Description:
1. Job Title: 10/10, 10/10, 10/10
2. Introduction/Overview: 0/10, 0/10, 0/10
3. Roles & Responsibilities (or Job responsibilities): 9/10, 9/10, 9/10
4. Years of Experience: 10/10, 10/10, 10/10
5. Education Qualification: 10/10, 10/10, 10/10
6. Skills/Knowledge: 9/10, 9/10, 9/10
7. Domain/Industry: 0/10, 0/10, 0/10
8. Key Competencies: 8/10, 8/10, 8/10
9. Employment Type: 10/10, 10/10, 10/10
10. Company Overview: 0/10, 0/10, 0/10
11. Benefits & Opportunities: 0/10, 0/10, 0/10
12. Location & Travel: 9/10, 9/10, 9/10

Explanation of Scores:

1. Job Title:
The custom job description clearly states the job title, which is complete and relevant to the industry standard.

2. Introduction/Overview:
No details are provided in the custom job description, resulting in a score of 0 for all parameters.

3. Roles & Responsibilities:
The custom job description provides clear and relevant responsibilities that are nearly complete when compared to the benchmark, but it lacks some details such as engaging in the full software development life cycle and maintaining high attention to detail in all aspects of coding and development.

4. Years of Experience:
The custom job description is clear, complete, and relevant, matching the benchmark's requirements.

5. Education Qualification:
The custom job description provides clear, complete, and relevant educational requirements, aligning with the benchmark.

6. Skills/Knowledge:
The custom job description lists clear and relevant skills and knowledge, but it is slightly less complete than the benchmark as it does not explicitly mention awareness of SEO principles and accessibility standards.

7. Domain/Industry:
No details are provided in the custom job description, resulting in a score of 0 for all parameters.

8. Key Competencies:
The custom job description mentions problem-solving skills, attention to detail, and effective team work, which are clear and relevant. However, it is not as complete as the benchmark, which also emphasizes communication skills for technical and non-technical audiences.

9. Employment Type:
The custom job description clearly states the employment type, which is complete and relevant to the benchmark.

10. Company Overview:
No details are provided in the custom job description, resulting in a score of 0 for all parameters.

11. Benefits & Opportunities:
No details are provided in the custom job description, resulting in a score of 0 for all parameters.

12. Location & Travel:
The custom job description provides clear and relevant details about the location and travel requirements, which are nearly complete but do not mention the option for fully remote work as explicitly as the benchmark does.