Sr Collection Specialist
Gatx
Remote · Chicago, IL · Posted September 17, 2026
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Where Chicago, IL ranks
Where Chicago, IL placed in our monthly rankings, month by month. Each month stays online at its own address.
November 2026
- #1Best cities for government pay after cost of living$146k · of 18
- #1Cities with the most jobs that do not need a four-year degree in the Midwest684 jobs · of 51
- #1Cities with the most jobs that do not need a four-year degree in the Great Lakes684 jobs · of 36
- #1Best cities for software and engineering jobs in the Midwest1,140 openings · of 59
- #1Best cities for software and engineering jobs in the Great Lakes1,140 openings · of 48
- #1Best all-round cities for mid-career professionals in the Midwest80 / 100 · of 20
Rankings about finance jobs
- Best cities for finance jobs #1 New York (1,932 openings)
- Best cities for finance pay after cost of living #1 San Mateo ($162k)
- Most requested AI skills in finance jobs #1 AI tools in daily work (4.3%)
- AI tools named most often in finance jobs #1 Claude (0.55%)
- Employers with the most finance jobs #1 Amazon (475 roles)
How AI is used in this kind of work
AI use among tax examiners and collectors, and revenue agents is little observed so far. Measured exposure for tax examiners and collectors, and revenue agents: 3% (little observed).
Share of this job’s tasks that AI is already used for at work, from real usage. It is not a forecast of job loss, and a low number means no use seen yet. Source: Anthropic Economic Index.
Skills this job asks for
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About the job
Overview Founded in 1898 and headquartered in Chicago, IL, GATX Corporation (NYSE: GATX) is an industry leader with 125+ years of success—success that is powered by our people. We are proud of our high-performance culture, hard-working and enthusiastic management team, and beautiful office space in the Willis Tower. At GATX, we hire the best and offer our employees a dynamic, energetic, collaborative environment to enable them to make an impact from day one. Enjoy the perks and benefits of a global company with the close-knit culture and community of a much smaller one. In the same way we strive to empower our customers to propel the world forward, we are dedicated to providing our people with the tools and resources they need to advance in their careers. The Sr. Collection Specialist is responsible for managing and collecting receivables for a portfolio of customers in North America. Responsibilities encompass calling customers, researching billing and cash application issues, and performing customer account reconciliations. This is a remote position; however, candidates must be based in the Chicago area to attend initial training and occasional in‑office meetings. Responsibilities Monitor customer balances using accounts receivable and cash receipt reporting to identify and prioritize balances in need of collection action. Maintain accurate and thorough records of collection activities (a log/tracker with detailed notes on communications with customers and internal business partners, dates, and action items) Contact customers (via phone and email), applying timely, diligently, and appropriate collection efforts to address balances past due. This customer portfolio often requires more diligent investigation and troubleshooting (meetings w/ customer and internal partners) to resolve issues. Identify and resolve past due balances and short payments by researching billing, cash application and adjustments utilizing various contacts at the customer’s organization and within GATX. Own the entire process to bring the matter to resolution. Perform all necessary follow-up to ensure actions are taken by the responsible parties Escalate accounts to appropriate parties when collection efforts stall Monitor and resolve kick-outs (differences between payments and invoices) on a daily basis Pinpoint issues and work proactively to address them before accounts become past due (PO accuracy, appropriate contacts, etc.) Communicate account status to management timely and accurately in format and level of detail required Prepare account status/summary for weekly meetings with manager Prepare account status/summary for monthly review meetings with leadership Prepare account status/summary for ad hoc review meetings with business partners Respond to inquiries/requests for account details from business partners and customers timely Prepare documentation and process routine transactions for customer portfolio Customer refunds Customer write-offs Customer summary for accounts escalated to the legal team Customer adjustments Perform other projects or duties as assigned by the Manager/Director Qualifications Some college and/or work experience of 3-5 years in credit/collection and/or customer service fields. Knowledge and understanding of rail billing process is extremely helpful. Proficiency and/or work experience in collections. SAP experience is extremely helpful. Proficiency in Microsoft Excel is essential for managing data, creating reports, using basic formulas and VLOOKUPS. Strong attention to detail and accuracy in collections. Excellent communication skills, both written and verbal, to effectively resolve any issues related to collections. Ability to work independently and manage multiple tasks efficiently. Strong problem-solving skills to effectively address any discrepancies or issues. Typical knowledge of other Microsoft applications such as Outlook, Word, Teams and other Microsoft Office products. Posting Duration This posting will remain open until the role is filled. As of the post date, the salary range for this position is: Min USD $70,300.00/Yr. Max USD $86,000.00/Yr. This role may be eligible to participate in the Company’s short-term incentive plan, the details of which will be provided to the applicant upon hire. This range is a reasonable estimate and takes into account several factors that are considered in making compensation decisions, including, but not limited to, geographic location, skill set, experience, education, training, internal equity, and other business needs.