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GreenLight.ai

Payroll Implementation Support Specialist – Contract

GreenLight.ai

. Support the payroll implementation project plan, including workstream tracking, milestone management, dependency tracking, issue/risk logs, and status updates .

Posted 9/23/2026contractRemote • United StatesMid-LevelSeniorWebsite

Core Competencies

Role fit
Core Competencies

Use this summary to align your resume positioning with the role.

Demonstrates expertise in payroll operations and implementation, with a strong focus on data validation, reconciliation, and cross-functional coordination. Proficient in managing complex payroll environments and integrations with various operational systems.

Highest-signal resume keywords
Payroll Implementation SupportData Validation and ReconciliationCross-Functional CoordinationU.S. Multi-State Payroll ExperienceExcel Data Analysis

ATS Keywords

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Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills
Payroll OperationsPayroll SystemsData MigrationPayroll Configuration ValidationIntegration TestingUser Acceptance TestingParallel Payroll TestingIssue ResolutionProcess DocumentationAPI-Based Integrations
Soft Skills
Strong CommunicationProject CoordinationDocumentation Skills
Tools & Technologies
HCM/HRISTime and Attendance SystemsBenefits SystemsGeneral Ledger Systems
Certifications & Qualifications
CPPFPCPMP
Industry Keywords
High-Volume Hourly PayrollComplex Payroll EnvironmentsInternational Payroll ImplementationsThird-Party Implementation PartnersContingent Workforce

Tech Stack

Tools & technologies
PMP

About the role

Key responsibilities & impact
  • Support the payroll implementation project plan, including workstream tracking, milestone management, dependency tracking, issue/risk logs, and status updates
  • Coordinate across Payroll, HR, Finance, Engineering/Product, the selected payroll provider, and implementation partners
  • Support requirements validation, payroll process documentation, system readiness, and operational handoff planning
  • Assist with payroll data migration, mapping, cleansing, validation, and reconciliation
  • Support validation of payroll configurations, including earnings and deduction codes, tax setup, payroll calendars, worker setup, and payroll processing rules
  • Coordinate integration work between GreenLight’s platform and the payroll provider
  • Validate data flows including worker records, payroll inputs, payroll results, tax/deduction data, payment status, and reporting outputs
  • Support user acceptance testing, integration testing, and parallel payroll testing
  • Investigate testing discrepancies, document root causes, and track issues through resolution
  • Support cutover planning, go-live readiness, payroll calendar alignment, and post-implementation stabilization
  • Develop process documentation, testing materials, cutover checklists, job aids, and knowledge transfer materials
  • Provide hands-on hypercare support during the first payroll cycles after go-live

Requirements

What you’ll need
  • 5–8+ years of experience in payroll operations, payroll systems, payroll implementation, or payroll implementation support
  • Hands-on involvement in at least one complex payroll system or payroll provider implementation
  • Strong understanding of complex payroll environments, including U.S. multi-state payroll
  • Experience with high-volume hourly payroll, variable pay, frequent worker changes, payroll cutoffs, exceptions, and reconciliation
  • Experience supporting data validation, payroll reconciliation, parallel payroll testing, and issue resolution
  • Ability to coordinate cross-functional workstreams across payroll, HR, finance, engineering/product, vendors, and implementation partners
  • Comfortable working with technical teams on integrations, data flows, field mapping, testing, and issue tracking
  • Strong Excel skills and ability to analyze large datasets and identify discrepancies
  • Strong communication, documentation, and project coordination skills
  • Availability for a 3–5 month contract
  • CPP, FPC, PMP, or similar certification is helpful but not required (preferred)
  • Experience supporting payroll implementations across multiple countries or multiple payroll providers (preferred)
  • Experience with U.S. and international payroll implementations, ideally including Canada, the UK, and EU countries (preferred)
  • Experience supporting payroll integrations with HCM/HRIS, time and attendance, benefits, finance, general ledger, or other operational systems (preferred)
  • Experience working with API-based integrations, vendor technical teams, sandbox testing, integration test scripts, and system-to-system reconciliation (preferred)
  • Experience with complex hourly, contingent workforce, staffing, EOR, or payrolling environments (preferred)
  • Experience working with third-party implementation partners in a complex enterprise or multi-entity environment (preferred)

Benefits

Comp & perks
  • Temporary contract role expected to last approximately 3–5 months