The executive director has been with the retirement system since 2016.
The firm has appointed a president of its newly formed asset management pillar.
The fund received roughly $11.8 billion in external commitments.
The plans expect to issue an award notice on Dec. 19.
The pension plan also made two commitments at its real estate committee meeting in May.
The investment officer departed the plan last month to join the Qatar Investment Authority.
The retirement fund disclosed eight commitments totaling $1.1 billion in July.
Thoma Bravo will fund the transaction from its balance sheet.
The pension plan hired two infrastructure managers as the result of a newly approved asset allocation policy in the second quarter.
The new hires include a managing director of portfolio operations, v.p. of investments and assistant controller.