Sirius
Marketing & Sales AI · AI Agents
3open roles
1backers · a16z speedrun
Growinghiring pace, 69 of 100
3team · US Form 5500 (plan participants) · Dec 2025 · -25% in a year
Overview
Explore the AI retention platform built to recover your revenue automatically across your app and AI agents.
How Sirius hires
Truth index
B 75/100
Ghost roles
0%
Stale roles
100%
Reposted roles
0%
Sirius scores B on the Alion truth index (A is best, E worst), measured over 4 open roles re-checked against its own hiring board: 0% look like ghost listings, 100% have gone stale and 0% are the same role posted again. It measures how much of what this employer publishes turns into a real, finite search - not the employer as a workplace. How the index is computed
Funding and backers
Team
3
US Form 5500 (plan participants) · Dec 2025 · -25% in a year
Hiring now
5
+1 posted in 30 days
Backers
1
a16z speedrun
Momentum
23/100
hiring for its size, in the news
Last sign of life
1 mo ago
a posting or a news item
The story so fareach stage dated by its source: the company's releases, the press, registers, filings
Mar 2026
Website went live first capture in the Wayback Machine
Tractionpublic signals, read monthly
Web presence
top 9%
of 133.2M domains by links, Common Crawl
Backed byfrom the funds' portfolios and accelerator catalogs
Investors in similar startupsfunds that back the companies most like this one
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Jobs
$120k – $180k per year · In office · Full-Time · San Francisco
AI Agents
LLM
DevOps
Terraform
AWS
Platform Engineering
IAM
DNS
Apply
$120k – $180k per year · In office · Full-Time · 1+ year exp · San Francisco
JavaScript
TypeScript
AI Agents
Apply
$120k – $180k per year · In office · Full-Time · 1+ year exp · San Francisco
AI Agents
Apply
Salary insights
Compensation ranges based on this company's open jobs
Median
$180k
Typical range
$160k – $180k
Open positions
4
3
Jobs
Junior
66.7%
Middle
33.3%
| Level | Jobs | Median | Typical range |
|---|---|---|---|
| Junior | 2 | $180k | $180k |
| Middle | 1 | $160k | $160k |
Highest paying role
Backend Engineer
$180k
Normalized to USD per year
Growth
Hiring Momentum
69/100
Growing
Open positions
5
1 opened / 0 closed in 30 days
Median time-to-fill
19 days
faster than 60% of the market
ATS activity
Every ~4 hours
Today
Hiring Dynamics
+100%
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.
Marketing
50% ▲
Sales
50% ▼
Activity Timeline
Added SQL to stack
Nov 2026
Added LinkedIn to stack
Nov 2026
Added DNS to stack
Sep 2026
Tech stack
Technologies named in job postings at Sirius over the last 12 months, by layer, with the share of postings for each.
Technologies in use
12
Postings analysed
5
Stack modernity
85/100AI adopter
Languages
TypeScript
JavaScript
SQL
Cloud & platforms
AWS
Figma
AI & ML
LLM
Sign in to see how your skills match this stack
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Full Sirius tech stack
12 technologies · by team · pay by technology · changes · similar stacks
Connections
List
Graph
Found in company registers, site code, DNS and hiring. Each connection shows how sure we are and the evidence, with its source and date.
Shared investors
a16z speedrunVia a fund
Click a company to open it. Dashed lines are likely connections. The second step of the network is part of the Pro plan.
Owner
Same company
Same group
Likely
News
Sirius XM Stock Is Up 53% in 2026: Take Profits, or Buy More?
Sirius XM just pulled off a 53% run while its entire sector sits in the red, and now shareholders face the hardest part: figuring out whether the rerating is finished or just getting started.
Read more
Report
Sirius: The Brightest Star Explained - Facts, Location & How to See It
Learn all about Sirius, the brightest star in the night sky! Find out why it's so prominent, when and where to see it and how to easily locate it in the sky.
Read more
Report
Sirius Emerges From a16z Speedrun With an AI Platform for Customer Retention
/PRNewswire/ -- Sirius, an AI-powered retention platform for subscription businesses, is announcing its participation in a16z Speedrun Cohort 006 as the...
Read more
Report
Why Sirius XM Holdings Rallied Nearly 50% in the First Half of 2026
Sirius XM rallied on the back of a big YouTube partnership, inflecting revenue, and speculation over its wireless spectrum assets in light of the SpaceX IPO.
Read more
Report
Is Sirius XM Stock a Buy, Sell, or Hold in 2025?
The satellite radio monopoly has a lot to prove this year. Investors need to pick a side.
Read more
Report
Report
Judge rules SiriusXM's annoying cancellation process is illegal
A New York judge has ruled that SiriusXM's
Read more
Report
Show more news
Offices
Where the company hires and what each office is for
Cities
1
Hiring now
1
Countries
1
Busiest office
San Francisco
San Francisco
United States
HQ
5 open roles 2 posted in 90 days 40% engineering 20% remote 10-50 est. staff $175k Avg Salary
hires for Backend, Frontend, Marketing