Rex
rex.inc
Actively hiring
Machine Learning
Financial Software & Embedded Finance
As featured in
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Overview
News
Technologies
Salaries
Products
People
Growth
Offices
Jobs
Financials
Funding and backers
Team
11-50
employees, estimated range
Hiring now
2
+2 posted in 30 days
Backers
1
Y Combinator
Momentum
42/100
hiring for its size, in the news
Last sign of life
this month
a posting or a news item
The story so fareach stage dated by its source: the company's releases, the press, registers, filings
Tractionpublic signals, read monthly
Web presence
top 7%
of 133.2M domains by links, Common Crawl
Backed byfrom the funds' portfolios and accelerator catalogs
Y Combinator Investors in similar startupsfunds that back the companies most like this one
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Overview
Rex is an artificial intelligence and enterprise financial technology company specializing in automated order-to-cash (O2C) and accounts receivable operations. Headquartered in San Francisco, California, United States, the platform deploys AI agents that integrate directly with enterprise ERPs, CRMs, and procurement portals to manage invoice collections, remittance processing, cash application, and dispute resolution. By replacing manual administrative workflows with autonomous, auditable task execution, the enterprise enables corporate finance teams to accelerate cash collection, clear operational backlogs, and optimize working capital efficiency.
Tech stack
Technologies named in job postings at Rex over the last 12 months, by layer, with the share of postings for each.
Technologies in use
4
Postings analysed
2
Stack modernity
74/100
Cloud & platforms
Apache Kafka
Practices & domains
AI Agents
Function Calling
Tool Use
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Salary insights
Compensation ranges based on this company's open jobs
Median
$185k
Typical range
$120k – $250k
Open positions
2
2
Jobs
Junior
100%
| Level | Jobs | Median | Typical range |
|---|---|---|---|
| Junior | 2 | $185k | $120k – $250k |
Highest paying role
Founding AI Engineer (Enterprise Finance Operations)
$250k
Normalized to USD per year
Growth
Hiring Momentum
53/100
Stable
Open positions
2
2 opened / 0 closed in 30 days
ATS activity
Every ~5 hours
Today
Hiring Dynamics
0%
Hiring Focus
The percentage next to each role is its share of the company's job openings over the last 90 days; the arrow shows the shift versus the previous period.
AI/ML
50% ▲
Finance
50% ▲
Offices
Where the company hires and what each office is for
Cities
2
Hiring now
1
Countries
2
Busiest office
London
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Headquarters
Builds here
Office with open vacancies
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San Francisco
United States
HQ
London
United Kingdom
2 open roles 2 posted in 90 days 50% engineering 10-50 est. staff $185k Avg Salary
hires for AI/ML, Finance
Jobs
$150k – $250k per year • Equity 0.1–1% • In office • Full-Time • 1+ year exp • London
Apache Kafka
AI/ML
Function Calling
AI Agents
Tool Use
Apply