Flox
flox.dev
Actively hiring
Custom Software Development
DevOps & Platform Engineering
View 2 jobs
Claim pageClaim
Follow
Overview
News
Technologies
Salaries
Products
People
Growth
Offices
Jobs
Financials
Funding and backers
Total raised
$48.2M
3 rounds on record
Latest round
$24.9M
Venture round · Aug 2025 · 14 mo ago
Team
51-200
employees, estimated range
Hiring now
2
open roles
Backers
3
Illuminate Financial, Hetz Ventures
The money's age
Due for its next round
14 months since the last round · hiring slowed
Momentum
15/100
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
Nov 10, 2025
On the Hacker News front page Run Nix Based Environments in Kubernetes · 111 points
Sep 10, 2025
Launched on Hacker News Show HN: Flox – Nvidia CUDA available for the Nix ecosystem
Aug 1, 2025
Raised a round Venture round $24.9M · SEC Form D
Jan 18, 2023
Raised a round Venture round $15.9M · SEC Form D
Mar 9, 2022
Raised a round Venture round $7.4M · SEC Form D
2020
Founded
Tractionpublic signals, read monthly
Funding rounds
| Round | Date | Amount | Investors | Source |
|---|---|---|---|---|
| Venture round | Aug 2025 | $24.9M | — | SEC Form D |
| Venture round | Jan 2023 | $15.9M | — | SEC Form D |
| Venture round | Mar 2022 | $7.4M | — | SEC Form D |
Registers and programsofficial lists and records that name the company
| Legal entity | FloxDev, Inc. | SEC Form D |
Founders and leadersfrom filings, registers and the company's site
Ron Efroni RotmanExecutive Officer, DirectorSEC Form D
Ben FutorianskyExecutive OfficerSEC Form D
Backed byfrom the funds' portfolios and accelerator catalogs
Illuminate Financial 
Hetz Ventures 
NEA Investors in similar startupsfunds that back the companies most like this one
Similar startupsby what they do, their industry and backers
RWX is the CI/CD platform for the agentic dev cycle. Validate changes without a commit. Give your agents sandboxes that share your build…
Run AI agents, services, databases, and GPUs in secure microVMs. One governed path from commit to production, on our cloud or your own.
Eden gives platform engineering teams a practical control layer for upgrading data, gateways, and runtime infrastructure while the business…
AI writes the code, preview environments ship it. Release gives every pull request and every AI agent a full-stack, production-like…
Bunnyshell is a Romanian technology company founded in 2017 and headquartered in Bucharest. Its platform creates ephemeral development…
Quali's Agentic AI tools help DevOps, platform engineering, and infrastructure teams deliver and maintain environments faster and more…
News
Making Flox Better for People and Machines
Flox v1.14.1 improves activation, search, and usability as more developers, CI systems, and AI agents rely on Flox. Read more
Read more
Report
Flox Account Tokens for People and Machines
Flox now supports granular, role-based tokens that enable organizations to reduce their blast radius, keep pipelines running smoothly through staff changes, easily rotate credentials on a schedule, and seamlessly authenticate in browserless workflows. Rea
Read more
Report
Flox Auto-Activation Is Now Native in Flox
Native Flox auto-activation enables a seamless, friction-free flow by dynamically discovering, activating, layering, and deactivating Flox environments as you move through your projects.
Read more
Report
One Tool, Every Language: Declarative Dev Environments
Imagine creating declarative, reproducible environments for the toolchains and dependencies you use in your workflows. Declaring compilers, debuggers, dev libraries, and other dependencies as code. Declarative patterns make this convenient, reproducible,
Read more
Report
Flox AI Stack as Code: Define It Once, Run It Everywhere
Learn how AI stacks as code make ML and AI environments reproducible across macOS, Linux, Windows, CUDA, and Apple Silicon with reusable reference patterns.
Read more
Report
Flox Mitigating Shai-Hulud Attacks with Hermetic Builds
Shai-Hulud-style supply chain worms exploit the secrets, permissions, and network access exposed during builds. Reproducible, hermetic build environments can limit the blast radius across local development and CI/CD.
Read more
Report
Flox Training nanoGPT on Slurm with a Nix-Pinned Environment
This article describes a pattern for creating reproducible runtime environments for ML/AI using declared, graph-backed environments based on Nix and Flox. The same Nix and Flox environments run as-is during both model training in local dev to checkpoint v
Read more
Report
A Pattern for Local Dev: Runtime on the Host, Services in Containers
Run project runtimes on your local machine with Nix, Guix, or Flox, let containers handle PostgreSQL, Redis, and other services. Get fast, reproducible local dev that travels from laptop to CI to production ... and back again. Read more
Read more
Report
Platform Teams and the Challenge of Works-on-My-Machine
A practical guide to creating and working with Flox standardized local development environments, including playbooks for defining, reproducing, and managing project environments at scale. Read more
Read more
Report
Radio Free Flox for May 23rd, 2026
This week's Radio Free Flox dishes on the new packages, environments, AI tools, etc. that land in the Flox Catalog + go live on FloxHub. It also spills tea on what's going on internally at Flox-including just how much some Flox employees spend on API toke
Read more
Report
Show more news
Tech stack
Technologies named in job postings at Flox over the last 12 months, by layer, with the share of postings for each.
Technologies in use
18
Postings analysed
3
Stack modernity
76/100
Languages
Python
Go
Ruby
Rust
Cloud & platforms
Kubernetes
AWS
Cloudflare
DLP
Sign in to see how your skills match this stack
Sign In
Full Flox tech stack
18 technologies · by team · pay by technology · changes · similar stacks
Salary insights
Compensation ranges based on this company's open jobs
Median
$215k
Typical range
$210k – $220k
Open positions
2
2
Jobs
Middle
50%
Staff
50%
| Level | Jobs | Median | Typical range |
|---|---|---|---|
| Middle | 1 | $210k | $210k |
| Staff | 1 | $220k | $220k |
Highest paying role
Solutions Engineer
$220k
Normalized to USD per year
People
Ron Efroni Rotman
Executive Officer, Director
Ben Futoriansky
Executive Officer
Pavel Livshiz
Director
Ron Davidson
Director
David Shainok
Director
Aaron Jacobson
Director
Michael Brantley
Director
Todd Arfman
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
29/100
Slowing
Open positions
2
0 opened / 1 closed in 30 days
Median time-to-fill
97 days
faster than 13% of the market
ATS activity
Every ~4 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.
Security
50% ▼
Solutions
50% ▼
Activity Timeline
Added SIEM to stack
Sep 2026
Added DLP to stack
Sep 2026
Offices
Where the company hires and what each office is for
Cities
2
Hiring now
2
Countries
1
Busiest office
New York
Loading the map
Headquarters
Builds here
Office with open vacancies
Tap a pin for the office
New York
United States
HQ
1 open roles 50-200 est. staff $220k Avg Salary
hires for Solutions
San Francisco
United States
1 open roles 10-50 est. staff $220k Avg Salary
hires for Solutions
Jobs
$160k – $210k per year • Remote (United States) • Full-Time • 3+ years exp
Python
CI/CD
AWS
Cloudflare
GitHub
IAM
Cybersecurity
Snyk
Semgrep
ISO 27001
Checkov
SOC 2
Zero Trust
Defense in Depth
Least Privilege
Threat Modeling
SLSA
tfsec
SIEM
DLP
Apply
$170k – $220k per year • Hybrid • Full-Time • 8+ years exp • New York • San Francisco
Python
Go
Rust
TypeScript
Ruby
CI/CD
Docker
Kubernetes
Cybersecurity
SBOM
Apply