Accounts Receivable Specialist [Remote]

About Lumary

Lumary is a high-growth global healthtech company on a mission to revolutionise technology for the healthcare industry. We do this by developing solutions that support and empower service providers, working together to ensure better outcomes for people that need care. This commitment to partnership has been a key part of our success so far, and we are driven to continue evolving our products and our people so we can impact the healthcare community to thrive on a global scale.

About ten years ago, Lumary’s founder and CEO was building custom Salesforce solutions for therapy practices in Australia focused on care for the elderly and disabled. As demand grew and he hired a team, Lumary was formed and created a dynamic set of products to help practices in this part of the healthcare space to scale.

After significant growth in Australia, Lumary launched into the US ABA space. Here, we primarily serve companies who provide help to children and adults with autism through ABA therapy, but also occupational, physical, and speech therapy among others. Lumary provides a full practice management solution to our clients.

Our clients in the ABA space are truly special. Many of them started from a single BCBA whose love and skill for her clients created demand that led her to starting a company. It’s typical for a single founder to grow over a short time to build a company of 50, 100, 500, up to thousands of staff, all dedicated to the mission of serving a community of clients with autism who nearly always are in need of high quality and accessible therapy.

Join Lumary and grow with us

You will be working in an agile and start-up environment, with plenty of opportunities for you to lean in and develop your skills to make a meaningful contribution to Lumary’s mission and your career development. We push ourselves to build innovative products and deliver a first-rate customer experience to enable better outcomes for healthcare providers and their clients receiving care.

Our culture evolves with us on our scale-up journey. We focus on connection and building deep relationships with each other. We act in service of others to enable collective success and support. We think strategically and take ownership in our domains at every level. We remain positive and adaptable through change and growth.

You will find yourself quickly growing in your career, led by you and supported by us, and backed by a collaborative team that is open to new ideas and encourages everyone to bring their best selves to work.

About the Role

The Accounts Receivable Specialist is a vital member of the Lumary RCM Department, responsible for owning the collection of outstanding ABA claims and driving down aged receivables. This is a collections-focused role for a tenacious problem-solver who treats every unpaid or underpaid claim as a case to investigate and resolve. You will spend the majority of your time pursuing payers, working aged AR, appealing denials, and chasing down the root cause of why claims aren't paying, then fixing it.

While the primary focus is collections and AR resolution, you will also handle a limited amount of upfront claim submission and payment posting as needed to support the team. Your real strength is investigation: digging into payer behavior, spotting patterns across denials and underpayments, and pursuing every dollar owed through to resolution.

This role reports to the Director, Revenue Cycle Management.

What you'll do

• Own and work the aged accounts receivable, prioritizing the highest-value and oldest outstanding claims to maximize collection.


• Investigate unpaid, underpaid, and denied claims, determining root cause and pursuing resolution directly with payers.


• Manage the full denials and appeals process, ensuring denials are addressed promptly and appeals are pursued through to outcome.


• Conduct payer follow-up by phone and portal, escalating and documenting each step until claims are resolved.


• Identify and report developing claim issues, denial trends, and payer patterns, escalating to leadership with recommendations.


• Review and manage overpayments, initiate recoupment processes when necessary, and ensure payers post reconciliations appropriately.


• Audit each month in the quarter for missed billing, unacknowledged claims, and aging that requires action.


• Coordinate with providers to write off uncollectable claims only after a thorough appeals and collection effort.


• Provide support with primary and secondary claim submission and payment posting as needed.


• Monitor and address assigned tasks in Lumary, including provider communications.

About You

• Collections or accounts receivable experience is required. You have a track record of working aged AR, denials, and appeals - ideally in a medical billing or healthcare RCM setting.


• Strong investigative ability. You dig into the details, ask the right questions, and don't stop until you've found why a claim isn't paying and resolved it.


• Strong understanding of the medical claim lifecycle, denials management, and payer reimbursement processes.


• Confident and persistent in payer follow-up and appeals, with excellent documentation and follow-through.


• Familiarity with ERA/EOB processing and electronic claim submissions.


• Prior experience in Medicaid billing.


• Experience in ABA or behavioral health billing is a plus.


• Detail-oriented with a high level of accountability and a solutions-first mindset, collaborating with senior team members to find resolutions.

Lumary’s Core Values

Skills can be taught, but values are lived. At Lumary, our core values aren't just posted on our website and covered once at induction, they guide every decision we make and every interaction we have. We look for team members who naturally resonate with these principles, not just a list of qualifications or experience. If these values speak to you, you’ll likely find that you thrive in our environment.

• We ‘Lead with an open heart’ - meaning we cultivate trust even when there is no trust, assume good intentions and have the courage to be vulnerable.


• We ‘Start with the end in mind’ - meaning we focus on the long-term impact of our actions, making decisions with purpose and sustainability in mind.


• We ‘Take action in uncertainty’ - meaning we are proactive in taking the next best step in uncertainty and complexity, exercise autonomy and we learn by doing.


• We ‘Enable others for our collective good’ - meaning we are kind and act in service of others. When we take care of ourselves and each other we take care of the community.

Benefits of Working With Lumary

• Flexibility to work from home and the office - hybrid working environment if based at an office location in Denver, alternatively fully remote if not based near Denver


• Flexible start and finish times - have a routine but on the days you need to book an appointment or finish early, go for it


• Monthly town halls for connection and company alignment


• Monthly dedicated Social Connection days


• Quarterly employee engagement surveys (currently at 82% engagement and trending upwards)


• Internationally growing company working towards a purposeful vision: Empowering sustainable healthcare

We are proud of the work we are doing and the team we have built so far.

Join us and be part of a team working together to do better. From the advanced products we build to our philanthropic work, we connect with the belief that what we do every day is positively impacting the lives of our community.

At Lumary, we value diversity and believe in a culture of inclusivity, regardless of race, religion, age, gender identity, sexual orientation, physical or mental ability, or ethnicity. We are committed to building a welcoming workplace where everyone feels safe, valued and respected.

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The successful candidate will be required to undergo employment screening checks relevant to the healthcare industries we serve.

This is a full-time, permanent employment position. We are currently only accepting applications from candidates who are located in the United States and are authorized to work for any employer without sponsorship.