MetalBear Tech Stack

Kubernetes development tool for local-remote code mirroring

Software Development New York, NY 11–50 employees Founded 2022 Privately Held

MetalBear builds mirrord, an open-source tool that routes local code execution into remote Kubernetes clusters without deployment. The stack is heavily systems-oriented (Rust, C++, Kubernetes APIs) with infrastructure-as-code discipline (Terraform, Pulumi, ArgoCD), and the hiring profile is top-heavy on senior/VP roles alongside active R&D scaling—typical for a founder-led platform tackling deep distributed-systems problems. Pain points cluster around customer acquisition, engineer retention, and security/compliance at scale.

Tech Stack 18 technologies

Core StackRust Kubernetes Docker C++ Terraform Pulumi AWS GitHub Actions GitLab CI/CD ArgoCD Python mirrord GCP Azure Bash ISO 27001 SOC 2 NIST

What MetalBear Is Building

◆Challenges

Building customer-facing function
Scaling quickly
Scaling r&d organization
Retaining world-class engineers
Growing early-stage product
Deep systems engineering challenges
Debug complex distributed environments
Ensuring scalable, reliable products
Security and compliance scaling challenges
Maintaining iac reliability

▲Active Projects

Mirrord
Customer engineering playbook
Poc and production deployments
Real-time mirroring between local development and remote kubernetes environments
Ci/cd pipeline design
Building kubernetes operators or other components that interact with the kubernetes api
Metalbear platform development
Iac setup improvement
Security architecture certification
Kubernetes operator development

Hiring Activity

Steady15 roles · 7 in 30d

Department

Engineering

Research

Product

Seniority

Senior

Mid

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About MetalBear

MetalBear, founded in 2022, operates the mirrord project: a development workflow tool that eliminates the need to deploy code to see it run in a Kubernetes environment. Instead of maintaining separate staging clusters or slow redeploy cycles, developers run local code in the context of a remote cluster, enabling concurrent development without interference and reducing total cloud infrastructure costs. The company is 11–50 people, headquartered in New York, with engineering-led R&D and active hiring across North America, Europe, and Israel. Current focus spans Kubernetes operator development, CI/CD pipeline design, and production deployment support.

HeadquartersNew York, NY

Company Size11–50 employees

Founded2022

Hiring MarketsCanada, United States, United Kingdom, Israel, Poland

Frequently Asked Questions

What is mirrord and how does it work?

mirrord is an open-source tool that lets developers run local code directly in the context of a Kubernetes cluster without deploying. Multiple team members can mirror the same staging environment concurrently without interrupting each other, improving code quality and reducing cloud costs.

What tech stack does MetalBear use?

Rust and C++ for core development, Kubernetes and Docker for runtime, Terraform and Pulumi for infrastructure, GitHub Actions and GitLab CI/CD for automation, and AWS/GCP/Azure for cloud deployment. Compliance certifications include ISO 27001 and SOC 2.