Senior Accounts Payable Specialist

About Longmark Group

Longmark Group is an alternative asset management platform specializing in residential real estate. With a mission to redefine the industry, Longmark approaches asset management differently, starting with operational excellence as its foundation and evolving into a leader in capital markets innovation.

Since 2021, the team at Longmark has acquired and managed single-family rental properties in high-demand markets across the Midwest and Sun Belt. Backed by a 100+ person team with expertise at top institutions like Blackstone, Progress Residential, and Goldman Sachs and led by CEO Brian Hardecker, Longmark embodies its core values:

• Innovative Thinking, Grounded Execution: Longmark challenges traditional approaches, combining innovative strategies with disciplined execution to drive smarter investments.
• Principled Leadership: Trust is built on fairness and transparency. Longmark commits to doing what’s right, ensuring every decision reflects a focus on sustainable success.
• Entrepreneurial Spirit and Strength: Longmark fosters bold action, empowering its team to think critically, act decisively, and innovate confidently within a framework of operational excellence.
• Data Sophistication: Advanced data capabilities drive precision in decision-making, ensuring exceptional outcomes for investors and partners.

We’re building the world’s largest alternative asset manager the smart way and are seeking dynamic professionals who want to be part of this journey.

We are seeking a detail-oriented and proactive Senior Accounts Payable (AP) Specialist to support the day-to-day execution of the AP function for our operations. This role will act as a key contributor in ensuring timely and accurate invoice processing, maintaining strong vendor relationships, and supporting internal stakeholders across the organization. The ideal candidate will bring strong AP experience, a hands-on approach, and the ability to operate effectively in a fast-paced, high-volume environment. This role will also support process improvements and help strengthen controls as we continue to scale.

Responsibilities

• Support the end-to-end accounts payable process, including invoice intake, coding, approvals, and payment processing.
• Review and process a high volume of invoices, ensuring accuracy and compliance with company policies and approval workflows.
• Assist with weekly payment runs (ACH, check, wire) and ensure timely vendor payments.
• Monitor AP aging and follow up on outstanding invoices, discrepancies, and approvals.
• Partner with internal teams (operations, accounting) to resolve invoice and vendor issues.
• Maintain vendor records, including onboarding, W-9 collection, and payment details.
• Ensure adherence to controls around invoice processing, vendor changes, and payment approvals.
• Identify and escalate duplicate payments, discrepancies, or process gaps.
• Support month-end close activities, including accruals and reconciliations.
• Assist with audits, reporting, and ad hoc projects as needed.
• Contribute to continuous improvement of AP processes, systems, and automation efforts.

Qualifications

• 3+ years of Accounts Payable experience.
• Strong understanding of AP processes, controls, and best practices.
• Experience in real estate, property management, or construction AP is strongly preferred.
• Experience in high-volume or fast-paced environments.
• Proficiency with accounting systems (e.g., NetSuite or similar ERP systems).
• Strong attention to detail and organizational skills.
• Ability to manage multiple priorities and meet deadlines.
• Effective communication skills and ability to collaborate cross-functionally.
• Experience with AP automation tools or system integrations is a plus.

Why Join Us?

You’ll be joining a dynamic, mission-driven company at the intersection of real estate and innovation. If you’re excited by operational excellence, scaling processes, and building trusted vendor and team relationships, this is a great opportunity to make a meaningful impact. ---

Benefits

• Generous PTO to recharge and maintain a healthy work-life balance.
• Paid maternity and paternity leave to support your growing family.
• 401(k) program with matching to help you plan for a secure future.
• Opportunities for professional growth and development.
• A collaborative, team-oriented environment.

Why Join Longmark Group?

At Longmark Group, our innovative strategies and culture empower every team member to make meaningful contributions and drive exceptional outcomes for investors and communities alike. Joining Longmark means joining a company that values expertise, collaboration, and a commitment to excellence.