Proper Voltage
propervoltage.com
Actively hiring
Musical Instruments
Electrical & Electronic Engineering
As featured in
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Overview
News
Technologies
Salaries
Products
People
Growth
Offices
Jobs
Financials
Funding and backers
Total raised
$43.5M
3 rounds on record
Latest round
$6.5M
Venture round · May 2026 · 4 mo ago
Team
17
US Form 5500 (plan participants) · Dec 2025 · +31% in a year
Hiring now
10
+2 posted in 30 days
The money's age
Fresh money
4 months since the last round · and hiring
Momentum
28/100
hiring for its size, fresh money
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
May 12
Raised a round Venture round $6.5M · SEC Form D
Jul 19, 2022
Partnership 1 min read Jul 19, 2022 Insights 1 min read Proper Voltage Partners with Toshiba To Create Longer Lasting Battery · forbes.com
Feb 15, 2019
Raised a round Venture round $18.5M · SEC Form D
Feb 15, 2019
Raised a round Convertible Note $18.5M · SEC Form D
2019
Founded
Tractionpublic signals, read monthly
Web presence
top 15%
of 133.2M domains by links, Common Crawl
Funding rounds
| Round | Date | Amount | Investors | Source |
|---|---|---|---|---|
| Venture round | May 2026 | $6.5M | — | SEC Form D |
| Convertible Note | Feb 2019 | $18.5M | — | SEC Form D |
| Venture round | Feb 2019 | $18.5M | — | SEC Form D |
Registers and programsofficial lists and records that name the company
| Legal entity | Proper Voltage, Inc. | SEC Form D |
Founders and leadersfrom filings, registers and the company's site
Charles WelchExecutive Officer, DirectorSEC Form D
Gregory SlawsonExecutive OfficerSEC Form D
David FelzerExecutive Officer, DirectorSEC Form D
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Tech stack
Technologies named in job postings at Proper Voltage over the last 12 months, by layer, with the share of postings for each.
Technologies in use
19
Postings analysed
4
Stack modernity
59/100
Languages
Embedded C
C
MATLAB
Python
Frameworks & libraries
Embassy
Cloud & platforms
FreeRTOS
RTOS
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Full Proper Voltage tech stack
19 technologies · by team · pay by technology · changes · similar stacks
Salary insights
Compensation ranges based on this company's open jobs
Median
$195k
Typical range
$90k – $300k
Open positions
9
7
Jobs
Junior
14.3%
Middle
14.3%
Senior
14.3%
Staff
14.3%
Principal
14.3%
Architect
28.6%
| Level | Jobs | Median | Typical range |
|---|---|---|---|
| Junior | 1 | $145k | $145k |
| Middle | 1 | $165k | $165k |
| Senior | 1 | $195k | $195k |
| Staff | 1 | $200k | $200k |
| Principal | 1 | $205k | $205k |
| Architect | 2 | $275k | $250k – $300k |
Highest paying role
VP of Sales
$300k
Normalized to USD per year
People
Charles Welch
Executive Officer, Director
Gregory Slawson
Executive Officer
David Felzer
Executive Officer, Director
Craige Bertero
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
24/100
Hiring freeze
Open positions
9
0 opened / 0 closed in 30 days
Median time-to-fill
53 days
faster than 29% of the market
ATS activity
Every ~1 days
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.
Operations
40% ▲
Hardware
20% ▲
Industrial Engineering
20% ▼
Robotics
10% ▼
Sales
10% ▼
Offices
Where the company hires and what each office is for
Cities
1
Hiring now
1
Countries
1
Busiest office
Carlsbad
Carlsbad
United States
HQ
8 open roles 8 posted in 90 days 38% engineering 38% remote 50-200 est. staff $191k Avg Salary
hires for Operations, Hardware, Robotics
Jobs
$115k – $145k per year • Equity • In office • Full-Time • 2+ years exp • Bachelor's Degree • Carlsbad
Python
Rust
C
Embassy
C
Embedded C
DevOps
RTOS
Prometheus
Git
QEMU
Cortex
Robotics
CANopen
Chips/EDA
JTAG Debuggers
IoT
FreeRTOS
Apply
$165k – $205k per year • Equity • Remote (United States) • Full-Time • 6+ years exp • Bachelor's Degree • Carlsbad
MATLAB
Simulink
AI/ML
Quantization
Robotics
CANopen
Chips/EDA
LTspice
Apply
$130k – $165k per year • In office • Full-Time • 5+ years exp • Bachelor's Degree • Carlsbad
SolidWorks
Apply