Accounts Receivable, Specialist

DayOne; Jakarta Pusat; On-site; IDR 66,960,000 - 133,920,000; Full time

Job summary

DayOne is seeking a Billing and Collections Operations professional to issue invoices, ensure timely billing, and protect cash flow across live client accounts. You will handle overdue payments, customer inquiries, and dispute resolution in collaboration with Sales, Operations, and Project teams.

The role requires 1–2 years in billing/AR or finance operations, a Finance/Accounting diploma, and proficiency in Excel and SAP. Equal opportunity employer with a global footprint across APAC and Europe.

Qualifications

• 1 to 2 years in billing, AR, collections, or finance operations.
• Diploma in Finance, Accounting, or related field.
• Familiarity with AR systems and SAP.
• Experience with billing disputes is a plus.
• Proficient in Excel and standard reporting tools.

Responsibilities

• Issue invoices based on validated charges and ensure timely billing.
• Follow up on overdue accounts and manage collections.
• Communicate with customers on invoice status and adjustments.
• Record collection activity and prepare management reports.
• Resolve billing disputes and coordinate with Sales/Operations.

Skills

Billing & AR

Excel

Reporting

Dispute resolution

Communication

Education

Diploma in Finance/Accounting

Tools

SAP

AR systems

Job description

Join DayOne – Shaping the Future of Data Infrastructure

DayOne is a global leader in the development and operation of high-performance data centers. As one of the fastest-growing companies in the industry, we’ve built a robust presence across Asia and Europe — and we’re just getting started. As we expand into new international markets, we’re looking for talented, driven individuals to join us on this exciting journey. This is more than a job — it’s an opportunity to be a key contributor to our dynamic team and help shape the future of global data infrastructure. If you're passionate about innovation, technology, and growth, we invite you to be part of DayOne’s next chapter.

About DayOne

DayOne builds and operates hyperscale data centers across nine markets in APAC and Europe. We raised US$4.5B in Series C funding and are in active build across the region. Johor is where DayOne's Malaysian operations are concentrated, at the heart of the SIJORI corridor connecting Singapore, Johor, and Batam. In 2026, DayOne committed RM28+ billion to Malaysia and secured a landmark partnership with TNB for over 1GW of renewable energy. Functions based here work close to live campuses, which means the work connects directly to the infrastructure it supports rather than sitting at a distance from it.

About the Role

Billing and Collection Operations

Issue invoices based on validated charges, coordinating with relevant departments to confirm billable items. Ensure timely, accurate billing that protects cash flow and DSO. Follow up on overdue accounts and manage payment collection through to resolution. Handle customer communication on invoice status, payment queries, and adjustments. Record collection activity and prepare status reports for management.

Dispute Resolution

Handle billing disputes at first point of contact; escape unresolved or recurring disputes to the Billing Center Manager or AR Analyst for root-cause review. Coordinate with Sales, Operations, and Project teams to resolve disputes and prevent recurrence.

Process and Compliance

Maintain AR records in line with internal controls and audit requirements. Flag recurring billing issues and recommend process fixes. Support month-end closing and reporting.

Requirements

Technical Skills

• 1 to 2 years of experience in billing, AR, collections, or finance operations.
• Diploma in Finance, Accounting, or a related field.
• Familiarity with AR systems and SAP is preferred.
• Experience with billing disputes and escalation is an advantage.
• Proficient in Excel and standard reporting tools.

Soft Skills

• Escalates aging accounts through the right channel rather than letting them sit.
• Manages multiple billing cycles and deadlines without losing accuracy.
• Keeps disputes moving toward resolution through clear communication with internal teams and customers.

Nice to Have

• Prior experience in a data center or large corporate billing environment.
• Exposure to automation tools within AR or billing systems.

Why DayOne?

DayOne is scaling fast across nine markets, and billing accuracy at this stage directly protects cash flow for a company deploying capital at pace. You'll work closely with Sales, Operations, and Project teams on live client accounts, with clear ownership of your portfolio. DayOne is proud to be an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees.

DayOne is a data center pioneer that develops and operates next‑gen digital infrastructure for industry leaders who demand reliable, cost‑effective and quickly scalable solutions. Our cutting‑edge facilities empower hyperscalers and large enterprises to achieve rapid deployment and enhance connectivity, driving transformative engagement and innovation as we shape the future of industries. DayOne's data centers are located across key markets, including Singapore, Johor (Malaysia), Batam (Indonesia), Greater Bangkok, Hong Kong SAR, Tokyo, and beyond. Headquartered in Singapore, DayOne’s leadership team draws on over two decades of industry experience and a track‑record of building Asia's largest data center business. With DayOne, they have created the SIJORI (Singapore, Johor, and Riau Islands) market as a global data center hub. As demand for strategically located and customized data centers rises, DayOne's entrepreneurial spirit, customer‑first strategy, deep local partnerships, and agile executional capabilities uniquely position us to power the growth ambitions of leading hyperscalers and large enterprises around the world.