Jobs in the United States

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Added 5 mins ago
O
Principal Core Infrastructure Engineer
Oracle
Nashville, TN
- $114,600 to $234,600 USD / year
As a Principal Software Engineer, you will lead the design and development of FastConnect control plane services that manage a globally distributed fleet of networking infrastructure. You…
Added 6 mins ago
Manufacturing Engineer – Business Process Management
Blue Origin Personnel, LLC
Space Coast, FL
We are seeking a dynamic Manufacturing Engineer – Business Process Management to join our New Glenn Manufacturing Engineering (ME) team at Blue Origin. This role will drive manufacturing…
Added 19 mins ago
AI Content Creator
HIGHSCALE
Remote, United States
Speed up the pre-production process by visualizing lighting setups and set designs virtually.
Added 19 mins ago
AI Content Creator
HIGHSCALE
Remote, United States
Speed up the pre-production process by visualizing lighting setups and set designs virtually.
Added 19 mins ago
AI Content Creator
HIGHSCALE
Remote, United States
Speed up the pre-production process by visualizing lighting setups and set designs virtually.
Added 20 mins ago
Mechanical Engineer
Hii / Hydroid
Pocasset, MA
Added 20 mins ago
Automation Engineer III
Jabil
Clinton, MA
Analyze production data and identify opportunities for process optimization and waste reduction.
Added 20 mins ago
Manufacturing Engineer
GE Aerospace
Lynn, MA
…senior engineers on the shop floor to keep parts flowing, solve process problems, and prevent defects from escaping. You’ll follow standard work and established procedures, but you can…
Added 20 mins ago
Electrical Engineer II
Amazon
North Reading, MA · N Reading, MA
…robotic systems that combine cutting-edge AI, sophisticated control systems, and advanced mechanical design to create adaptable automation solutions capable of working safely alongside…
Added 21 mins ago
Data Engineer
Deloitte
Boston, MA
7+ years of experience as a Data Engineer delivering production-grade data pipelines and curated datasets.
Added 21 mins ago
Senior Full Stack Engineer - NBA
Humana
Boston, MA
The Senior Full Stack Engineer builds and evolves the NBA platform's Action Library and Command Center experience, the operational system used by business and program teams to create,…
Added 21 mins ago
Engineering Technical Lead - I&C Embedded Software
GE Vernova
Boston, MA
Lead preparation of high thru low work planning, scheduling, and resource loading across lifecycle phases of Engineer-Procure-Construct or new product introduction using the applicable…
Added 21 mins ago
C
Full-Stack Software Engineer
CAI
Boston, MA
- $84 to $89 USD / hour
We are looking for a motivated Full-Stack Software Engineer ready to take us to the next level! If you have strong proficiency in TypeScript, Node.js, and Python, and are looking for your…
Added 21 mins ago
KS
Senior Machine Learning Engineer - Boston, MA
Kelly Services
Boston, MA
- $220,000 to $240,000 USD / year
A fast-growing technology company is seeking a Senior Machine Learning Engineer to join its team in the Greater Boston area. This is a hybrid opportunity that combines cutting-edge machine…
Added 21 mins ago
AT
Principal Software Engineer - (Reston or Cambridge)
Akamai Technologies, Inc.
Boston, MA
- $169,300 to $304,700 USD / year
As a Principal Software Engineer Lead, you will be responsible for:
Added 22 mins ago
Staff Systems Design Engineer - Consumables / Microfluidics
Invitrogen Holdings LLC
Pleasanton, CA
We are seeking a Staff Engineer in Consumables & Microfluidics to lead the design and commercialization of next-generation consumables for molecular biology, genetic-analysis and…
Added 22 mins ago
Senior CAD Engineer - Layout/Verification/Simulation
Micron Technology
Boise · San Jose
JR116732 Senior CAD Engineer - Layout/Verification/Simulation (Evergreen)
Added 22 mins ago
Senior CAD Engineer – Physical Verification
Micron Technology
Boise · San Jose
JR116730 Senior CAD Engineer – Physical Verification (Evergreen)
Added 35 mins ago
Staff Mobile Engineer, iOS
Lingo US Inc
CA
As a Staff Mobile Engineer, iOS at Lingo, you will lead the design and development of the iOS applications and shared iOS platform components that power our biosensing experience. In this…
Added 59 mins ago
Software Development Engineer
Amazon.com Services LLC
Seattle, WA · New York, NY
…You'll partner with the science team to bring LLM models into production and contribute to LLMOps, and build the data processing pipelines that power it all. These are greenfield problems…
Added 1 hour ago
Senior CAD Engineer – Physical Verification
Micron Technology, Inc.
Boise, ID · San Jose, CA
Translate process design rules into verification checks, and define the test cases, coverage criteria, and regression methods that qualify them.
Added 1 hour ago
CT
Paint Manufacturing Engineer Supervisor - Ditch Witch
CMW The Charles Machine Works, Inc.
Perry, OK
- $80,000 to $101,000 USD / year
Paint Manufacturing Engineer Supervisor at Ditch Witch:
Added 1 hour ago
Senior Board Product Development Engineer
NVIDIA Corporation
CA · Santa Clara, CA · Santa Clara
We are seeking a creative and experienced Senior Board Product Development Engineer to join our Operations Engineering team. This role is pivotal in ensuring the successful release of…
Added 1 hour ago
sUAS/Drone Software Engineer Asc - Early Career
Lockheed Martin
San Luis Obispo, CA · San Luis Obispo
Lockheed Martin Aeronautics is seeking a full-time Early Career Software Engineer. The engineer will be a member of a team engaged in the design of tactical sUAS and related accessories,…
Added 1 hour ago
sUAS/Drone Software Engineer - Intern
Lockheed Martin
San Luis Obispo, CA · San Luis Obispo
Lockheed Martin Aeronautics is seeking a Summer 2027 Software Engineer - Intern. The engineer will be a member of a team engaged in the design of tactical sUAS and related accessories,…

Blacksmith

Systems Security Engineer

New York City, NY, United States

$225,000 to $300,000 USD / year

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Job details

Pay: $225,000 to $300,000 USD / year
Posting language: English
Posted: Oct 30, 2026

Original job description

ABOUT BLACKSMITH

We started by building infrastructure to run CI workloads really fast. Our first product helps companies run GitHub Actions substantially faster and cheaper by owning and operating our own global fleet of bare-metal machines rather than renting generic cloud VMs.
Today, we orchestrate tens of millions of Firecracker VMs each week, running CI for 10,000+ companies and tens of millions in ARR. We’ve grown 20x so far in 2026.
We operate thousands of bare-metal machines across multiple regions, regularly schedule 300k+ vCPUs concurrently, and run a petabyte-scale Ceph cluster that we manage ourselves.
We’ve raised $125M from Seed to Series C, led by Sequoia, Google Ventures (GV) & Peak XV Partners, and we’re intentionally building a small, but exceptional team.
Blacksmith was founded by a team with deep systems and scaling experience, including building search/ads infrastructure at Faire, and operating large distributed systems at Cockroach Labs. Our GTM is led by Jon Boyer, formerly Head of Sales at Zapier.
We're now extending the same CI infrastructure into a broader platform: running agent sandboxes at scale and building our own background coding agent on top of it.

THE ROLE AT BLACKSMITH

We are looking for a Systems Security Engineer to build and operate security controls at Blacksmith. Your primary focus will be our bare-metal fleet, with responsibility extending to our AWS control plane, application services and the broader organization.

This is a hands-on engineering role. You'll work alongside our systems engineers to harden production systems, strengthen workload isolation, and investigate and remediate security issues. You'll partner with our Security Lead to translate security priorities into engineering work.

WHAT YOU’LL BE DOING

Identify, prioritize and remediate security risks across our bare-metal fleet, AWS control plane, application services and the broader organization.
Strengthen tenant isolation, host hardening, network boundaries and access controls across our platform.
Build and operate automated security controls for secure configuration, vulnerability remediation, intrusion detection and response, validating their effectiveness without compromising production reliability or performance.
Investigate and respond to security incidents, driving remediation through to completion.
Partner with engineering and IT to establish secure defaults and practical security standards across systems and workflows, balancing security, reliability and usability.

YOU’RE A GOOD FIT IF YOU HAVE

Strong Linux systems experience, with the ability to debug production issues across the kernel, networking and storage stack.
A practical understanding of security fundamentals, including least privilege, defense in depth and threat modeling, and the ability to translate risks into technical solutions.
Experience with virtualization and Linux isolation primitives, such as Firecracker, KVM, namespaces and cgroups, and an understanding of their security boundaries and tradeoffs.
An understanding of storage access controls, tenant isolation and secure data deletion.
An understanding of how to use eBPF for runtime security monitoring, including observing process, file and network activity to detect suspicious behavior.
Experience securing production AWS environments, particularly IAM, networking and audit logging.
The ability to write and debug production code in Go, Rust, C, C++ or similar, and automate security changes through configuration management and infrastructure as code.
Strong comfort with agent-driven development and debugging, including directing coding agents, reviewing their changes and validating correctness and security.
A track record of turning ambiguous problems into practical engineering solutions, owning implementation through production rollout, and explaining technical tradeoffs to engineers, leadership and non-technical partners.

We welcome candidates from security engineering, systems engineering and SRE backgrounds. You should bring strong systems fundamentals and a demonstrated interest in securing the infrastructure you operate.

BONUS

You've found or reported CVEs, done container or VM escape research, or competed in CTFs.
You've secured multi-tenant infrastructure running untrusted workloads, such as CI runners, cloud compute or agent sandboxes.
You've built or extended eBPF-based detection tooling, turning runtime telemetry into actionable alerts and investigations.
You've secured software delivery pipelines, including build isolation, artifact signing, image provenance or secrets handling.
You've operated or secured distributed storage systems such as Ceph or MinIO in production.
You've secured macOS infrastructure running untrusted workloads.

COMPENSATION AND BENEFITS

Medical, Vision, and Dental insurance.
Competitive base + equity.
401K match.
Unlimited PTO.
Annual offsite.
Early-exercise stock options.
12 weeks fully paid parental leave (US).

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More about this job

Skills

AWS
Security threats
Security regulations
Linux
Identity and access management
Go
Rust
C
C++
Infrastructure as code
Debugging
Leadership
Research

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