2,100,573open jobs
132,004companies
239,675added this week
Browse all
Location
In office (Mexico City)
Seniority
Senior · 5+ years exp

Confirmed on the employer's own hiring board on Nov 5, 2026. First seen by Alion on Sep 18, 2026. Scale AI scores B on the Alion truth index.

Overview
Company
Impact
Profile match
Scale AI is an American company founded in San Francisco in 2016 that supplies the training data, evaluation and tooling behind large artificial intelligence systems. It began with human-labelled annotation for autonomous driving and computer vision, then expanded into reinforcement learning from human feedback, expert data generation, model evaluation and full-stack deployment platforms for enterprises and governments. In 2025 Meta acquired a large minority stake and hired co-founder Alexandr Wang, after which the company continued under new leadership serving defence, public sector and commercial customers.

We are seeking an experienced and detail-oriented US Payroll Specialist to oversee our end-to-end multi-state payroll operations. In this role, you will ensure accurate, timely, and compliant payroll processing for all US-based employees while managing internal payroll initiatives. The ideal candidate is a strategic problem-solver with deep expertise in US labor laws, taxation, and ADP+Workday payroll systems.

You will:

  • Full-Cycle Payroll Processing: Oversee the accurate and timely processing of multi-state bi-weekly and semi-monthly payrolls for over a thousand exempt and non-exempt employees across most of the USA.
  • Compliance & Taxation: Ensure strict adherence to federal, state, and local tax laws, as well as FLSA regulations. Monitor regulatory changes and update internal systems accordingly.
  • Year-End Processing: Manage year-end payroll activities, including W-2 and W-2c generation, fringe benefit reporting, and annual tax reconciliations.
  • Cross-Functional Collaboration: Partner closely with HR to ensure accurate data flow for onboarding, offboarding, benefits deductions, and compensation changes. Ability to work with Accounting to ensure accurate general ledger mapping, month-end close procedures, and payroll account reconciliations.
  • System Administration & Optimization: Act as the primary subject matter expert for our payroll system (e.g., Workday, ADP). Identify bottlenecks, recommend process improvements, and lead system upgrades or implementations.
  • Issue Resolution, Continuous Improvement & Auditing: Conduct regular audits of payroll data to identify and resolve discrepancies. Serve as the ultimate point of continuous improvement with AI and other methodologies to ensure Scale’s payroll processes are best in class.

Ideally you'd have:

  • 5+ years of payroll experience.
  • Strong organizational skills; the ability to get all priority tasks completed by the end of each day.
  • Confidentiality and integrity.
  • Accuracy under pressure and extreme attention to detail.
  • Experience with ADP WorkforceNow and Workday.
  • Bachelor’s degree.
  • Technical proficiency.

Nice to haves:

  • Advanced AI technical skills.
  • Excellent communication skills.

PLEASE NOTE: Our policy requires a 90-day waiting period before reconsidering candidates for the same role. This allows us to ensure a fair and thorough evaluation of all applicants.

About Us:

At Scale, our mission is to develop reliable AI systems for the world's most important decisions. Our products provide the high-quality data and full-stack technologies that power the world's leading models, and help enterprises and governments build, deploy, and oversee AI applications that deliver real impact. We work closely with industry leaders like Meta, Ernst & Young, Mayo Clinic, Time Inc., the Government of Qatar, and U.S. government agencies including the Army and Air Force. We are expanding our team to accelerate the development of AI applications.

We believe that everyone should be able to bring their whole selves to work, which is why we are proud to be an inclusive and equal opportunity workplace. We are committed to equal employment opportunity regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability status, gender identity or Veteran status. 

We are committed to working with and providing reasonable accommodations to applicants with physical and mental disabilities. If you need assistance and/or a reasonable accommodation in the application or recruiting process due to a disability, please contact us at [email protected]. Please see the United States Department of Labor's Know Your Rights poster for additional information.

We comply with the United States Department of Labor's Pay Transparency provision. 

PLEASE NOTE: We collect, retain and use personal data for our professional business purposes, including notifying you of job opportunities that may be of interest and sharing with our affiliates. We limit the personal data we collect to that which we believe is appropriate and necessary to manage applicants’ needs, provide our services, and comply with applicable laws. Any information we collect in connection with your application will be treated in accordance with our internal policies and programs designed to protect personal data. Please see our privacy policy for additional information.

Free account
Stop reading job ads. Get the ones that fit.
One free account turns this page into a shortlist built around your stack, your level and your pay.
Match on every job. Stack, seniority, pay and location, scored against your profile.
2,100,573 open roles. Read straight off company career pages, refreshed every day.
Unlimited applications. Every one you send is tracked in one place, on-site or on a company board.
3 tailored CVs a month. Rewritten for the exact job you are applying to. Included free.
Create a free account Continue with Google
Free forever. No card. Under a minute.

Recommended for you based on this role

Finance
Similar stack
Same company
Mexico City
Auditor de campo 1 hour ago
$115k per year (gross) · In office · Full-Time · Mexico City
Apply
Hybrid · Contractor · Santa Fe
Analytics
Microsoft Excel
Apply
In office · Full-Time · 1+ year exp · Bachelor's Degree · Mexico
Apply
$7.8k – $11k per year · In office · Full-Time · Ulaanbaatar
Analytics
Microsoft Excel
Apply
$9.4k – $11k per year · In office · Full-Time · Ulaanbaatar
1C
Analytics
Microsoft Excel
Management
QuickBooks
Apply
Senior Accountant 21 days ago
$95k – $130k per year · Equity · In office · Full-Time · 3+ years exp · Bachelor's Degree · San Francisco · New York
SQL
AI/ML
Scale AI
Analytics
Microsoft Excel
Management
Jira
Apply
$180k – $225k per year · Equity · In office · Full-Time · 3+ years exp · San Francisco · New York
Databases
PostgreSQL
Snowflake
AI/ML
ChatGPT
Dagster
dbt
Fine-tuning
RLHF
Reinforcement Learning
Pre-training
DevOps
Terraform
CircleCI
CI/CD
AWS
Docker
Kubernetes
AWS Step Functions
Analytics
ETL/ELT
Apply
Contracts Manager 15 days ago
$138k – $173k per year · Equity · In office · Full-Time · 5+ years exp · Bachelor's Degree · Washington
Management
Airtable
Jira
Apply
$120k – $150k per year · Equity · In office · Internship · PhD · New York · San Francisco
Python
JavaScript
AI/ML
Reinforcement Learning
Multimodal AI
AI Agents
NLP
Synthetic Data
Post-training
Red Teaming
Machine Learning
Apply
≈ $101k – $204k per year (Estimated) · In office · 5+ years exp · London
DevOps
Terraform
GCP
GitHub Actions
CircleCI
Azure
CI/CD
GitOps
AWS
Docker
Kubernetes
Apply
In office · Full-Time · 3+ years exp · Bachelor's Degree · Mexico City
Apply
In office · Full-Time · 6+ years exp · Bachelor's Degree · Mexico City
Apply
In office · Full-Time · 6+ years exp · Bachelor's Degree · Mexico City
Apply
Hybrid · Bachelor's Degree · Mexico City
SQL
Analytics
Microsoft Excel
Apply
Remote (Mexico) · Full-Time · Bachelor's Degree · Mexico City
Life Sciences
Good Clinical Practice
Apply
See all jobs
This is one of many
2,100,573 more open roles from verified company boards, updated every day.