Blacksmith Tech Stack

GitHub Actions runner platform optimized for speed and cost

Software Development San Francisco, California 11–50 employees Founded 2024 Privately Held

Blacksmith operates a GitHub Actions execution platform positioned as a faster, cheaper alternative to cloud-native CI/CD. The tech stack reveals a systems-focused company: C, C++, Go, Rust, and Zig suggest heavy infrastructure work, while Firecracker (lightweight virtualization) and MinIO (object storage) indicate they're building isolated, containerized execution environments. Notably, they're replacing AWS in their own stack—a direct signal they're betting on unbundling hyperscaler compute for CI workloads, which aligns squarely with their stated pain point around high cloud costs and inefficient pipelines.

Tech Stack 17 technologies

Core StackGitHub Actions C++ Go Rust Ansible Puppet AWS Salesforce C Zig Chef Ceph MinIO GCP Azure Firecracker Claude

ReplacingAWS

What Blacksmith Is Building

◆Challenges

Unbundled from hyperscaler clouds
Faster and cheaper ci
Scaling distributed systems
Rapid scaling of operations
Managing vendors
Scaling go-to-market operations
Optimizing lead routing and forecasting
Improving data governance and system health
High cloud costs
Inefficient ci pipelines

▲Active Projects

Digital native sales motion
Building support engineering best practice
High-roi events and conferences
Diagnosis and resolution of complex technical issues
Customer education docs and onboarding guides
Automating core operational processes
Onboarding employees
Managing vendors
Product launches end-to-end
Repeatable demand channels

Hiring Activity

Steady15 roles · 4 in 30d

Department

Sales

Engineering

Marketing

Ops

Support

Seniority

Mid

Manager

Lead

Senior

Notable leadership hires: Head of Marketing

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About Blacksmith

Blacksmith provides a managed CI/CD execution platform for GitHub Actions, serving over 1,000 customers including public brands in SaaS and developer tools. The company, founded in 2024 and based in San Francisco, is building a systems infrastructure company with an engineering-first tech stack (C, C++, Go, Rust, Zig) and a distributed platform architecture (Ceph, MinIO, Firecracker). Hiring is balanced across go-to-market (sales, marketing), engineering, and operational functions, with projects spanning product launches, sales motion development, customer support engineering, and operational scaling. Core pain points center on managing vendor relationships during rapid scaling and optimizing lead-routing and demand channels as they grow.

HeadquartersSan Francisco, California

Company Size11–50 employees

Founded2024

Hiring MarketsUnited States, Canada

Frequently Asked Questions

What tech stack does Blacksmith use?

Blacksmith uses C, C++, Go, Rust, and Zig for core platform development, alongside Firecracker for virtualization, Ceph and MinIO for distributed storage, and AWS, GCP, and Azure for cloud infrastructure. They're actively replacing AWS in their own systems.

What is Blacksmith working on?

Current projects include scaling operations and go-to-market, building support engineering practices, launching new products, developing a digital-native sales motion, automating operational processes, and creating customer education materials and onboarding guides.