Operations & People Admin at Fast-Growth Startup

TAR; Austin (TX); Hybrid; USD 45,000 - 65,000; Full time

Job summary

TAR in Austin is seeking an Administrative Assistant to own the operational backbone, including office operations, payroll and core HR administration, travel, expenses, and team events.

You will work closely with founders, leadership, and the finance team, ensuring accurate paperwork, repeatable processes, and a single source of truth as TAR grows in Texas.

This on-site role requires 3+ years of startup experience, keen attention to detail, and the ability to move fast while getting it right.

Qualifications

• 3+ years in office management, people operations, HR, executive support, or a generalist operations role at a startup or similar environment.
• Hands-on payroll and core HR administration, including onboarding, offboarding, benefits, PTO, and employment paperwork.
• Working knowledge of US employment compliance and HR recordkeeping; know when to escalate to counsel or an outside advisor.
• Exceptional attention to detail and reliability; manages many moving parts without dropping them.
• Practical problem-solving; finds the vendor or workaround quickly and knows when to move fast or slow down to get it right.
• Clear, direct communication and follow-through to coordinate across a busy team.
• Discretion and sound judgment with sensitive payroll, HR, and financial information.

Responsibilities

• Run day-to-day office operations end to end, including supplies, equipment, vendors, and facilities.
• Own payroll and core HR administration, including onboarding and offboarding, benefits enrollment, PTO tracking, employment paperwork, and basic compliance.
• Plan and book travel for the team, including recurring site trips to West Texas, flights, hotels, transportation, and logistics.
• Own the expense process: collect and organize receipts, track spend, and reconcile records for the finance team.
• Plan and run team events, offsites, and the annual office party, maintaining a strong culture as the team grows.
• Pick up urgent unowned work, resolve it, and close the loop with minimal supervision.
• Build and improve lightweight systems across HR, payroll, expenses, and scheduling as the company scales.
• Manage scheduling and operational needs for founders and leadership, protecting their time and commitments.

Skills

Office management

Payroll

HR administration

Executive support

Attention to detail

Communication

Job description

TAR in Austin is seeking an Administrative Assistant to own the operational backbone, including office operations, payroll and core HR administration, travel, expenses, and team events.

You will work closely with founders, leadership, and the finance team, ensuring accurate paperwork, repeatable processes, and a single source of truth as TAR grows in Texas.

This on-site role requires 3+ years of startup experience, keen attention to detail, and the ability to move fast while getting it right.