Senior Collections Specialist

517 Ambipar Holding USA, Inc.; Fort Worth (TX); On-site; USD 52,000 - 78,000; Full time

Job summary

The Senior Collections Specialist at Ambipar in Fort Worth, TX will manage and collect outstanding receivables while maintaining positive client relationships. This temporary full-time role is 2–3 months and involves timely payments, resolving billing issues, and reporting progress to leadership.

You will review aging reports, negotiate payment plans, collaborate with Operations, Sales, and Accounting, and ensure compliance with company policies and applicable laws.

Qualifications

• Associate’s or bachelor's degree in Finance, Accounting, or Business.
• 12+ years of experience in collections or AR.
• Experience serving in a lead role.
• Strong communication, negotiation, and conflict-resolution skills.
• Proficiency with Microsoft Office, especially Excel.
• Ability to handle sensitive customer interactions professionally.
• Ability to run reports and summarize data for executives.
• Ability to communicate with customers via phone/Teams.

Responsibilities

• Review and monitor accounts receivable aging reports.
• Contact customers to collect past-due accounts.
• Negotiate payment arrangements and plans.
• Investigate and resolve billing discrepancies.
• Maintain detailed records of collection activities.
• Process payments and update account information.
• Collaborate with Operations, Sales, Accounting to resolve concerns.
• Escalate to legal or external agencies when necessary.
• Ensure compliance with policies and applicable collection laws.
• Prepare reports on collection status and delinquency trends.
• Summarize progress and report to leadership.
• Prioritize collection efforts.
• Provide guidance to junior team members.

Skills

Strong communication

Negotiation

Excel

Attention to detail

Time management

Leadership

Education

Associate degree or bachelor's in Finance/Accounting/Business

Tools

Workday

Job description

About Ambipar

Are you looking for an opportunity to truly make a difference? Do you want to join a collaborative, mission-driven team that protects the planet, strengthens communities, and supports businesses when they need it most? Are you seeking a place where your work contributes directly to an organization known for excellence in environmental services, crisis management, and emergency response? If your answer is “yes,” then you belong at Ambipar.

Ambipar is a global leader in environmental and emergency management solutions. In the United States, our diverse portfolio spans emergency consulting and risk mitigation, grants management support, 24/7 emergency response, environmental remediation, industrial services, business continuity, and disaster recovery. Through our Witt O’Brien's consulting business, we help communities build resilience in a rapidly changing world -advising clients on how to mitigate risk, prepare for crises, respond effectively, and recover stronger. Across the country, our emergency response teams manage environmental incidents of all types—from chemical and hazardous waste spills to silo fire suppression and industrial vacuum services. We also deliver specialized training programs that equip emergency responders with the skills they need to act swiftly and safely. As the frequency and complexity of both natural and human-made disasters continue to grow, the need for our expertise has never been greater. We invite you to join an ambitious, forward-thinking team of top professionals who are committed to safeguarding people, communities, and the environment. Together, we can take our organization- and your career to the next level.

Position Summary

The Senior Collections Specialist will be responsible for managing and collecting outstanding accounts receivable and minimizing overdue balances while maintaining positive relationships with Ambipar customers. This individual will contact clients regarding overdue payments and will monitor customer accounts to ensure timely payments. The Senior Collections Specialist will resolve billing issues and outstanding balances in a professional and efficient manner. This individual will generate reports to demonstrate progress and provide frequent status updates to leadership. This position is expected to be a full-time schedule, Monday through Friday, for a period of 2-3 months.

Position Details

Reports to: Director of Administration / Finance, Ambipar Field Services North America

Location: Fort Worth, TX

Position Type: Temporary Full-Time

FLSA Status: Non-Exempt

Pay: Hourly

Compensation: Travel: <5%

Essential Job Functions

• Review and monitor accounts receivable aging reports.
• Contact customers via phone, email, and written correspondence regarding past-due accounts.
• Negotiate payment arrangements and establish payment plans when appropriate.
• Investigate and resolve billing discrepancies, disputes, and payment issues.
• Maintain detailed records of collection activities and customer communications.
• Process payments and update account information accurately.
• Collaborate with Operations, Sales, Accounting, and other internal teams to resolve account concerns.
• Recommend accounts for escalation, legal action, or external collection agencies when necessary.
• Ensure compliance with company policies and applicable collection laws and regulations.
• Prepare reports on collection status, delinquency trends, and account performance.
• Summarize overall collections progress and provide status updates to leadership.
• Assist with prioritization of collection efforts based on operational needs.
• Provide guidance to more junior team members as needed.

Minimum Job Requirements

• Associate’s or bachelor's degree in Finance, Accounting, or Business.
• 12+ years of prior experience in collections, accounts receivable, customer service, or related financial roles.
• Experience serving in a lead role with influence over other team members.
• Strong communication, negotiation, and conflict-resolution skills.
• Proficiency with Microsoft Office, especially Excel.
• Strong attention to detail and organizational skills.
• Ability to handle sensitive customer interactions professionally and confidentially.
• Time management skills with the ability to prioritize multiple accounts.
• Candidate must have the ability to verbally communicate with customers in a clear and concise manner.
• Ability to run reports and summarize data for executive leadership review.
• Candidate must have the ability to listen to clients over the phone or Teams calls via the laptop computer.

Preferred Job Requirements

• Knowledge of accounts receivable processes and collection practices.
• Ability to analyze account histories and payment trends.
• Strong problem-solving and decision-making abilities.
• Familiarity with relevant debt collection regulations and compliance requirements.
• Experience with Workday or similar accounting ERP system.

Work Schedule/Work Environment

The Senior Collections Specialist position is expected to be a full-time schedule, Monday through Friday, for a period of 2-3 months. This position will be performed primarily in an office setting. Employee will spend most of the day sitting at a desk while using a laptop computer to review financial records and manage customer account information. This position will require extended periods of time on the phone communicating with customers.

Physical requirements include:

• Ability to remain seated for extended periods while working at a laptop computer.
• Frequent use of a computer, keyboard, mouse, and telephone.
• Ability to communicate clearly and professionally in person, over the phone, and through electronic communications.
• Frequent reading of computer screens and written documents; ability to distinguish text and numerical data.
• Manual dexterity sufficient to operate standard office equipment, including computers, printers, copiers, and scanners.
• Ability to occasionally stand, walk, bend, reach, and lift or carry office materials weighing up to 10-15 pounds.
• Ability to maintain concentration and attention to detail while performing repetitive tasks and handling multiple accounts.
• Ability to work in a standard office environment with normal levels of noise and interruptions.

Reasonable accommodations may be made to enable qualified individuals with disabilities to perform the essential functions of the position.

Job Description and Hiring Disclaimer

This position description incorporates the core responsibilities of the job. It recognizes that other related duties not specifically mentioned might also be performed, and that not all responsibilities may be carried out depending on operational needs. The hiring department will conduct interviews of qualified individuals prior to requesting a criminal background check, and no job application submitted prior to such interview shall inquire into an applicant's criminal history. If this position is subject to a background check for any convictions related to its responsibilities and requirements, employment will be contingent upon successful completion of a background investigation including criminal history. Criminal history will not automatically disqualify a candidate. Employment will also be contingent upon successful completion of a drug test.

Commitment to Diversity

Ambipar is always looking for the most qualified and experienced professionals with a passion for public safety, emergency management, homeland security, disaster response, and continuity of operations. We are an equal opportunity employer, and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability status, protected veteran status, or any other characteristic protected by law.

Equal Opportunity Employer/Veteran/Disabled With you when it counts.