MetalBear
metalbear.com
Actively hiring
DevOps & Platform Engineering
Developer Tools
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Overview
News
Technologies
Salaries
Products
People
Growth
Offices
Jobs
Financials
Funding and backers
Total raised
$12.5M
1 round on record
Latest round
$12.5M
Seed · Sep 2025 · 12 mo ago
Team
11-50
employees, estimated range
Hiring now
4
+2 posted in 30 days
Backers
2
TLV Partners, Tq
The money's age
Due for its next round
12 months since the last round · and hiring
Momentum
35/100
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
Oct 2026
Formerly MetalBearEnterpriseOther2022 (metalbear.co)
Sep 25
Launched on Hacker News Show HN: Cafe(s) and the Context You Can't Write Down
Mar 18
Expanded MetalBear Expands into Australia to Support Growing Enterprise Adoption of mirrord · manilatimes.net
Jan 20
Launched MetalBear Launches mirrord for CI to Bring Production-Like Testing into Continuous Integration · YahooFinance
Sep 16, 2025
Raised a round Seed $12.5M
2022
Founded
Tractionpublic signals, read monthly
Web presence
top 0.04%
of 133.2M domains by links, Common Crawl
Funding rounds
| Round | Date | Amount | Investors | Source |
|---|---|---|---|---|
| Seed | Sep 2025 | $12.5M | — | marketwatch.com |
Backed byfrom the funds' portfolios and accelerator catalogs
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Overview
MetalBear is a developer tools company that builds mirrord, an open-source tool that lets engineers run local code against a real Kubernetes cluster without deploying it. The product shortens development cycles, removes the need for per-developer staging environments and is sold to engineering teams as an enterprise edition. The company has teams in New York, London and Tel Aviv and is based in New York, United States.
News
CAFE(S) and the Context You Can
The CAFE(S) framework judges agent context on clarity, actionability, fidelity, efficiency, and security, but its fixes all assume context lives in documents. Some of what an agent needs is system behavior it could observe directly instead.
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Report
Report
How To Get Started With Chaos Testing Using mirrord
Use mirrord chaos testing to inject latency and connection errors into one session
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Report
How We Made mirrord Run Natively on Windows
For a long time mirrord on Windows meant running it inside WSL. Here
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Report
Auto-Verifying Your AI-SRE's Fixes (Part II): HolmesGPT End-to-End on a Real Cluster
Part II of our AI-SRE series: the verification loop from Part I, running end-to-end against HolmesGPT on a real Kubernetes cluster. Two planted bugs, two verdicts - one fix the loop signs off on, one it correctly rejects.
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Report
mirrord for AI Agents Turn Agents into Autonomous Developers
Turn your AI agents into autonomous developers. mirrord gives Claude, Cursor, and Codex instant cluster feedback: no deploys, no staging queues, no conflicts.
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Report
mirrord for CI by MetalBear Brings Production-Like Testing into Continuous Integration
MetalBear, creator of open source Kubernetes development solution mirrord, is introducingmirrord for CI, a breakthrough capability that brings production-like context from real environments directly into continuous integration (CI) pipelines.
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Report
MetalBear launches mirrord for CI to improve testing process for cloud native apps
Mirrord for CI securely connects a runner to a Kubernetes cluster, and then runs a test suite with real services, dependencies, and traffic.
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Report
MetalBear Launches mirrord for CI to Bring Production-Like Testing into Continuous Integration
New capability extends mirrord's environment mirroring into CI pipelines, enabling teams to run tests against real, shared Kubernetes environments without deploying code or spinning up new infrastructureTEL AVIV, Israel, Jan. 20, 2026 (GLOBE NEWSWIRE) --
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Tech stack
Technologies named in job postings at MetalBear over the last 12 months, by layer, with the share of postings for each.
Technologies in use
11
Postings analysed
13
Stack modernity
77/100
Languages
Rust46%
C++8%
Cloud & platforms
Kubernetes62%
Amazon ECS8%
Amazon EKS8%
AWS8%
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Full MetalBear tech stack
11 technologies · by team · pay by technology · changes · similar stacks
Growth
Hiring Momentum
83/100
Scaling fast
Open positions
4
2 opened / 0 closed in 30 days
Median time-to-fill
18 days
faster than 55% 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.
Backend
86% ▼
Sales
9% ▲
Product
5% ▼
Activity Timeline
Added Platform Engineering to stack
Oct 2026
Added LinkedIn to stack
Oct 2026
Added HubSpot to stack
Oct 2026
Added CI/CD to stack
Oct 2026
Added Amazon EKS to stack
Oct 2026
Added Amazon ECS to stack
Oct 2026
Added GCP to stack
Sep 2026
Added Azure to stack
Sep 2026
Added AWS to stack
Sep 2026
Added Docker to stack
Aug 2026
Offices
Where the company hires and what each office is for
Cities
2
Hiring now
2
Countries
2
Busiest office
New York
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Headquarters
Builds here
Office with open vacancies
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New York
United States
HQ
3 open roles 4 posted in 90 days 33% engineering 100% remote 10-50 est. staff
hires for Sales, Backend
London
United Kingdom
2 open roles 4 posted in 90 days 100% engineering 100% remote 10-50 est. staff
hires for Backend
Earlier presence
Warsaw, Poland
Jobs
≈ $63k – $146k per year (Estimated) • Equity • Remote (Germany, UTC-5 – UTC+4 hours) • Full-Time • 3+ years exp
Rust
AI Agents
DevOps
GitOps
Docker
Kubernetes
Apply
≈ $53k – $123k per year (Estimated) • Equity • Remote (Portugal) • Full-Time • 4+ years exp
Rust
C++
AI Agents
DevOps
GitOps
Kubernetes
Apply
Financials
Total raised
$12.5M
Latest round
Seed
Funding rounds
1
Funding rounds
| Round | Announced | Amount | |
|---|---|---|---|
| Seed | 2025 | $12.5M | Details |