
This summer 2026 internship places candidates within Mariner's Performance Reporting or Defined Contribution Support Services teams to gain hands-on experience in investment operations. Key responsibilities include collecting and filing critical client documents, maintaining investment manager compliance spreadsheets, and uploading portfolio data into reporting systems. The role appeals to students seeking to develop practical skills in evaluating portfolio performance and assessing data integrity while working in a fast-growing financial services firm. The position offers a supportive culture focused on professional growth, teamwork, and work-life balance, with opportunities to contribute to real client deliverables in a professional office environment.



















