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, 10/10
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, 10/10
7. Domain/Industry: 0/10, 0/10, 0/10
8. Key Competencies: 0/10, 0/10, 0/10
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, 10/10

Explanation of Scores:

1. Job Title:
The job title is clear, complete, and relevant to the industry standard.

2. Introduction/Overview:
No details are provided in the custom job description regarding the company's introduction or overview, hence the score is 0 for all parameters.

3. Roles & Responsibilities:
The roles and responsibilities are clearly defined, almost complete (missing suggestion for improvements to UI or software architecture), and relevant to the benchmark job description.

4. Years of Experience:
The years of experience required are clearly stated, complete, and relevant.

5. Education Qualification:
The education qualification is clearly stated, complete, and relevant.

6. Skills/Knowledge:
The skills and knowledge required are clearly stated and relevant, but slightly less complete as they could be more detailed in comparison to the benchmark (e.g., mentioning proficiency in version control systems).

7. Domain/Industry:
No specific domain or industry knowledge is mentioned in the custom job description, hence the score is 0 for all parameters.

8. Key Competencies:
Key competencies are not explicitly mentioned in the custom job description, hence the score is 0 for all parameters.

9. Employment Type:
The employment type is clearly stated, complete, and relevant.

10. Company Overview:
No company overview is provided in the custom job description, hence the score is 0 for all parameters.

11. Benefits & Opportunities:
No details on benefits and opportunities are provided in the custom job description, hence the score is 0 for all parameters.

12. Location & Travel:
The location and travel requirements are clearly stated, almost complete (missing the equal opportunity employer statement which could be considered part of this section), and relevant.