Project Billing Coordinator

Description Engineering excellence, built on people-first values.

At LUZCO, we’re more than an engineering firm — we’re a familia. We pair technical excellence with a culture rooted in respect, flexibility, and genuine care for one another. Here, you're known by name, supported as a whole person, and encouraged to bring your authentic self to work with competitive benefits, and the flexibility to support life both inside and outside of work.

We’re proud to be a

2025 and 2026 Best Place to Work in St. Louis

and a woman-owned, minority-owned boutique firm, delivering impactful engineering solutions in a workplace where people feel valued and empowered to grow.

Why You’ll Love LUZCO Benefits that take care of you:

Top-notch medical, dental, and vision insurance; a competitive 401k match; generous PTO; student loan repayment assistance; and an employee recognition platform that celebrates your wins big and small. Flexibility that fits your life:

We get that life doesn’t always stick to a schedule. You’ll work with your supervisor to create a schedule that’s flexible and works for both you and the team. Diversity that fuels innovation:

Our team brings together a wide range of backgrounds, perspectives, and experiences. That diversity isn’t just something we talk about; it’s what drives our creativity and helps us find better ways to solve problems. Growth that feels personal:

Whether you’re continuing your education, earning new certifications, or stepping into new challenges, we’re here to help you grow in the direction that’s right for you. You’ll collaborate with experienced mentors and leaders who want to see you succeed. A culture that gives back:

We’re passionate about our communities. Every year, we dedicate paid time off for volunteering and encourage our team to use their talents to make a difference whether that’s mentoring students, serving local nonprofits, or getting hands-on in community projects. A workplace that feels like you:

We keep things relaxed and welcoming. Expect weekly happy hours, team lunches, a stocked kitchen, dogs in the office, and a casual dress code. It’s a space where you can be yourself and do your best work. The Role We’re looking for a Project Billing Coordinator who is organized, responsive, and genuinely enjoys helping people. You’ll be a key partner to our Project Managers and Accounting team, helping ensure client invoices are accurate, submitted on time, and any billing questions or issues get resolved quickly. Billing will be the primary focus of this role, but we’re looking for someone who is also comfortable jumping in wherever needed. You’ll help maintain project information, research questions, track project updates, and provide additional project accounting support as you learn the business. This is a great opportunity for someone who likes working with both people and numbers, enjoys solving problems, and wants a role with variety and room to grow.

What Your Day Will Look Like Prepare and issue accurate and timely client invoices. Review project activity and supporting documentation before billing. Submit invoices through client portals and follow up on questions, rejections, or other issues. Work closely with Project Managers to gather information, answer questions, and keep billing moving. Review unbilled work and help identify and resolve items holding up invoicing. Research invoice and project-related questions to support collection efforts. Maintain project information such as billing terms, labor categories, funding limits, and rate schedules. Track purchase orders, change orders, funding updates, and other project changes. Help keep project financial information accurate and up to date. Jump in on other project accounting needs and special projects as needed. Requirements What You'll Bring to the Familia: Essentials to Succeed: 1+ years of experience in billing, accounting support, project administration, or a related role. Strong attention to detail and organizational skills. Comfortable working in Microsoft Excel. Strong written and verbal communication skills. Ability to manage multiple priorities and keep things moving in a fast-paced environment. A service-oriented mindset and ability to build strong working relationships. Resourceful problem-solving skills; you’re comfortable researching an issue, asking questions, and finding an answer. Flexibility and willingness to jump in wherever the team needs support. What Will Make You Stand Out: Experience with Deltek Vantagepoint, Deltek Vision, Ajera, BST, Oracle Projects, or similar software. Previous experience with client or project billing. Experience in engineering, utilities, consulting, architecture, construction management, or another project-based professional services environment. Familiarity with WIP, project funding, budgets, purchase orders, or change orders. Experience managing billing or administrative support across multiple projects or clients. Ready to Make an Impact?

We know you might not check every single box on the job description—and that’s totally fine. At LUZCO, we care about potential, collaboration, and diverse perspectives. If you’re passionate about joining a supportive and innovative team, we encourage you to apply and show us what you can bring to the familia.