[Hiring] QA Lead @IDT

Role Description

We are looking for an experienced Lead QA Engineer to own quality for the Net2Phone billing platform. You will focus on testing billing correctness end-to-end, including:

• How a call becomes a rated record and then an invoice line.
• Identifying where usage gets lost or double-counted between the switch and the bill.
• Understanding how proration behaves when a customer changes plans mid-cycle.
• Verifying the output of a third-party tax engine.

This is a manual-testing-heavy position, where automation leadership involves planning, prioritization, and coverage governance, rather than day-to-day framework development. You will not be the primary implementer but will be expected to read, review, and debug the team's suites.

PLEASE SUBMIT CV IN ENGLISH. ONLY ACCEPTING CANDIDATES FROM LATAM. ADVANCED SPOKEN ENGLISH IS REQUIRED.

Qualifications

• 8+ years in QA, including hands-on experience with a production billing, rating, or payments system.
• Working knowledge of rating and usage billing, including rate decks, prefix matching, billing increments, minimum durations, connection fees, and destination zones.
• Subscription billing experience, covering recurring and non-recurring charges, mid-cycle proration, upgrades, downgrades, trials, promotions, and discounts.
• Invoicing experience, including invoice generation, line-item totals, usage detail, credit memos, manual adjustments, refunds, and dunning.
• Strong SQL skills (joins, aggregations, window functions) sufficient to reconcile usage against invoices independently.
• Precision and rounding literacy, including decimal vs. floating-point representation, rounding modes, and identifying where each produces cent-level defects.
• Proven experience leading or mentoring QA engineers.
• A track record of pushing back with evidence, including rejecting untestable requirements and holding releases based on data.
• Proficiency with a formal Test Management System (TMS) and Jira.
• Professional English proficiency (spoken and written) with reliable overlap with US Eastern business hours.

Requirements

• Act as an active member of a Scrum team, participating fully in all agile ceremonies and maintaining all related artifacts.
• Own the test strategy for billing, covering rating, mediation, invoicing, taxation, payments, credits, adjustments, dunning, and reseller/white-label billing hierarchies.
• Design and document test coverage for month-end billing cycles, including cutoff and timezone boundaries, reruns, partial failures, and retry safety.
• Perform revenue-assurance testing, reconciling CDR volumes against invoiced amounts and quantifying the financial impact of any discrepancies.
• Trace billing discrepancies to their root cause, distinguishing rating-engine defects from mediation or switch-side issues.
• Enforce the requirement intake gate, ensuring no user story enters a sprint without testable acceptance criteria.
• Set and enforce documentation standards, ensuring requirement-to-test-case traceability and reviewable per-epic coverage.
• Drive the automation roadmap, deciding what gets automated, in what order, and with what expected ROI.
• Establish and report billing quality metrics, including defect escape rate, coverage, defect density, and release readiness.
• Mentor billing QA engineers and provide clear technical direction.
• Communicate and escalate product quality risks, holding ground when supported by data.

Benefits

• Remote work opportunity!
• B2B Employment ($, gross).
• Stable job with long-term growth perspective.
• Competitive salary with annual performance review.
• Really good hardware.
• An exciting and challenging job with talented people around.
• Continuous learning and career growth opportunities.
• Compensation for professional training, seminars, and conferences.
• Referral program: get rewarded for helping us grow the team with talented people.
• Company-supported English classes to enhance your professional growth.