Mongo Database AdministratorLocation: Philadelphia, PAPosition Type: contractRate: DOEUS citizen, Green Card and EAD preferred, no visa sponsorship available for this job and no third party agencies –C2C.Job Description:A Bachelor's Degree in Computer Science, Information Systems or a related field, or equivalent work experience.10+ years of IT work experience in DBA, DBMS design and support and relevant computing environments.5+ years of MongoDB experience in a Linux environment.Experience with physical collection creation, access pattern tuning, sharding implementation, index creation, and debugging query execution to obtain optimum database performanceExperience in MongoDB security.Hands-on experience in server performance tuning and recommendations.Hands-on experience in root cause analysis for business impacting issues.