Diamond Foundry
df.com
Actively hiring
Semiconductor Manufacturing
Advanced Materials
Jewelry
As featured in
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Overview
News
Technologies
Salaries
Products
People
Growth
Offices
Jobs
Financials
Funding and backers
Total raised
$200M
1 round on record
Latest round
$200M
Venture round · Mar 2021 · 5 yr ago
Team
368
US Form 5500 (plan participants) · Dec 2024
Hiring now
26
+10 posted in 30 days
Backers
2
Long Journey Ventures, Obvious Ventures
The money's age
Long since its last round
67 months since the last round · and hiring
Momentum
25/100
hiring for its size, a new city
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
Aug 13
First executive search Marketing Director
May 5
First role in Peru Facilities Electrical Engineer - Substations and High Voltage Infrastructure Specialist
Mar 11
First role in Spain Mozo de Almacén
Mar 15, 2021
Raised a round Venture round $200M · SEC Form D
2012
Founded
Tractionpublic signals, read monthly
Web presence
top 9%
of 133.2M domains by links, Common Crawl
Hacker News stories
1
best: 5 points
Funding rounds
| Round | Date | Amount | Investors | Source |
|---|---|---|---|---|
| Venture round | Mar 2021 | $200M | — | SEC Form D |
Registers and programsofficial lists and records that name the company
| Legal entity | Diamond Foundry Inc. | SEC Form D |
Founders and leadersfrom filings, registers and the company's site
R. RoscheisenExecutive Officer, DirectorSEC Form D
Backed byfrom the funds' portfolios and accelerator catalogs
Long Journey Ventures 
Obvious Ventures Investors in similar startupsfunds that back the companies most like this one
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How Diamond Foundry hires
Truth index
B 79/100
Median time to fill
59 days
Ghost roles
0%
Stale roles
86%
Reposted roles
0%
Diamond Foundry scores B on the Alion truth index (A is best, E worst), measured over 7 open roles re-checked against its own hiring board: 0% look like ghost listings, 86% have gone stale and 0% are the same role posted again. Its roles close in a median of 59 days. 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
Overview
Headquartered in San Francisco, California, Diamond Foundry is a technology firm that specializes in the production of lab-grown diamonds and high-performance single-crystal diamond wafers. The company leverages zero-emission, proprietary plasma reactor technology to manufacture synthetic gems for the luxury jewelry market as well as diamond substrates for semiconductor applications. Additionally, it supplies ultra-thermal conductivity solutions to optimize power efficiency in advanced microelectronics, electric vehicle systems, and artificial intelligence hardware.
News
World's First Single-Crystal Diamond Wafer Diamond Foundry
Explore Diamond Foundry's insights about Technology, read our Oct 02, 2023 article about World's First Single-Crystal Diamond Wafer.
Read more
Report
Diamond Disruptor: Meet The Nerdy King Of Bargain Bling
Prices for old-fashioned mined diamonds remain robust-for now.
Read more
Report
Diamond Foundry Confirms Truth of Rihanna
/PRNewswire/ -- Diamond Foundry Inc., the Greenhouse Gas Crystallizer founded ten years ago in San Francisco, California, today announced it has moved Beyond...
Read more
Report
Pope Francis Blesses Foundry-Grown Diamond
/PRNewswire/ -- Diamond Foundry Inc., the world
Read more
Report
You've Got It Man-Made: Lab-Grown Diamond Jewelry for Everyone
Fleur ring with lab-created simulant Nexus Diamonds; starting at $1,465; Diamond Nexus; 800-509-4990; diamondnexus.com
Read more
Report
Please Don't Use Frost & Sullivan's Lab-Grown Eco-Impact Report
A few months back, when I looked into the eco-impact of lab-grown diamonds, I considered discussing Frost & Sullivan's 2014
Read more
Report
Lab-grown gems are giving mined diamonds a run for their money
As shoppers become more environmentally conscious, the market for lab-grown gems is quickly growing. Gayle MacDonald asks, if it looks like a diamond, and feels like a diamond, does it matter that it didn't come from the earth?
Read more
Report
Report
Show more news
Tech stack
Technologies named in job postings at Diamond Foundry over the last 12 months, by layer, with the share of postings for each.
Technologies in use
15
Postings analysed
13
Stack modernity
74/100
Languages
Python46%
SQL31%
JavaScript15%
MATLAB15%
Cloud & platforms
AWS15%
Azure15%
GCP15%
Active Directory15%
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Full Diamond Foundry tech stack
15 technologies · by team · pay by technology · changes · similar stacks
Salary insights
Compensation ranges based on this company's open jobs
Median
$70k
Typical range
$29k – $270k
Open positions
23
20
Jobs
Junior
15%
Middle
45%
Senior
25%
Principal
5%
Architect
10%
| Level | Jobs | Median | Typical range |
|---|---|---|---|
| Junior | 3 | $36k | $29k – $56k |
| Middle | 9 | $61k | $36k – $150k |
| Senior | 5 | $140k | $67k – $175k |
| Principal | 1 | $180k | $180k |
| Architect | 2 | $225k | $180k – $270k |
Highest paying role
Director, Laser Technology
$270k
Normalized to USD per year
All salaries at Diamond Foundry
By role, level and city, against the market · 23 jobs with pay
People
R. Roscheisen
Executive Officer, Director
Brad Buss
Director
Names and roles come from public filings, company registers and the company's own site. Is this you? Correct or remove · How we handle this data
Growth
Hiring Momentum
78/100
Scaling fast
Open positions
27
8 opened / 16 closed in 30 days
Median time-to-fill
60 days
faster than 24% 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.
Field & Service
30%
Industrial Engineering
30% ▼
Backend
6% ▼
Operations
6% ▲
DevOps
3% ▲
Hardware
3% ▼
Actively hiring for Field & Service (+4 in 30 days)
Activity Timeline
New location: Wenatchee
Oct 2026
Added Windows to stack
Sep 2026
Added Linux to stack
Sep 2026
Added Active Directory to stack
Sep 2026
Added Rest API to stack
Sep 2026
Added Microsoft Office to stack
Sep 2026
Added TCP/IP to stack
Sep 2026
New location: Toronto
Sep 2026
New location: Washington
Sep 2026
New location: New York
Sep 2026
Added Google Workspace to stack
Sep 2026
Added OPC UA to stack
Sep 2026
Offices
Where the company hires and what each office is for
Cities
5
Hiring now
4
Countries
3
Busiest office
Trujillo
Loading the map
Headquarters
Builds here
Office with open vacancies
No open vacancies right now Tap a pin for the office
San Francisco
United States
HQ
Trujillo
Peru
Plant / site
8 open roles 8 posted in 90 days 200-500 est. staff $40k Avg Salary
hires for Field & Service, Industrial Engineering, Management
Zaragoza
Spain
Plant / site
6 open roles 10 posted in 90 days 33% engineering 200-500 est. staff $53k Avg Salary
hires for Industrial Engineering, Backend, DevOps
Wenatchee
United States
Support & operations
4 open roles 4 posted in 90 days 50-200 est. staff $73k Avg Salary
hires for Operations, Field & Service
New York
United States
1 open roles 1 posted in 90 days 10-50 est. staff $180k Avg Salary
hires for Marketing
Earlier presence
Toronto, Canada
Jobs
$62k – $67k per year • In office • Full-Time • 7+ years exp • Zaragoza
Linux
Windows
Cybersecurity
Active Directory
Apply
$195k – $270k per year • In office • Full-Time • 8+ years exp • Master's Degree
Python
MATLAB
Apply
≈ $38k – $92k per year (Estimated) • In office • Full-Time • 3+ years exp • Bachelor's Degree • Zaragoza
Python
SQL
C#
Rest API
Apply
$150k – $175k per year • In office • Full-Time • 3+ years exp • Bachelor's Degree
Python
JavaScript
SQL
GCP
Azure
AWS
Apply
$90k – $140k per year • In office • Full-Time • 2+ years exp • Bachelor's Degree
Python
SQL
C++
Computer Vision
DevOps
Git
TCP/IP
IoT
MQTT
Apply
Financials
Total raised
$200M
Latest round
Venture - Series Unknown
Funding rounds
1
Funding rounds
| Round | Announced | Amount | |
|---|---|---|---|
| Venture - Series Unknown | 2021 | $200M | Details |