Jobs in the United States

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Added 6 mins ago
TT
Founding Senior Engineer
True Talent Solutions Partners
New York, NY
- $175,000 to $225,000 USD / year
Join an early-stage AI company building growth tools for consumer brands. As a hands-on technical leader, you will help shape the engineering foundations and product while contributing to a…
Added 6 mins ago
TT
Lead Product Engineer
True Talent Solutions Partners
New York, NY
- $225,000 to $275,000 USD / year
Join a lean engineering team building a new internal product for an industrial real estate investment business. As the first product-focused engineer, you will own the front end and work…
Added 6 mins ago
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Software Engineer, Security
True Talent Solutions Partners
Remote, United States
- $200,000 to $250,000 USD / year
Join an early-stage cybersecurity company building enterprise identity software as its first dedicated security engineer. You will partner with engineering across the product lifecycle and…
Added 8 mins ago
Lead Systems Integration Engineer - AirPods
Apple
Cupertino, CA
…influence to bring the whole team up with them. If you love building things, raising the quality of every design that ships, and working on products that millions of people wear every day,…
Added 36 mins ago
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Principal Security Engineer
Citizens
Johnston, RI
- $142,000 to $186,000 USD / year
As a DevSecOps Engineer, you will be responsible for the development, administration, maintenance, promotion, and support of the HashiCorp Vault identity-based secrets and encryption…
Added 36 mins ago
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Environmental Branding Designer
Citizens
Johnston, RI
- $115,000 to $173,000 USD / year
…transformation of our retail branch and ATM network. Review engineer drawings, control drawings and prototypes and manage vendors to execute successfully in terms of quality, efficiency,…
Added 36 mins ago
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AFE Test & Integration Engineer
BioTalent
San Diego, CA
- $140,000 USD / year
Analog Front-End (AFE) Test Engineer | Neurotech / BCI | San Diego, CA (Onsite)
Added 39 mins ago
TT
Technical Product Manager
True Talent Solutions Partners
New York, NY
- $175,000 to $275,000 USD / year
- Five to fifteen years of experience as a product manager, engineer, or founder building B2B software.
Added 39 mins ago
TT
Senior Software Engineer, Distributed Systems (Core)
True Talent Solutions Partners
Remote, United States
- $180,000 to $320,000 USD / year
Join a backend engineering team building and improving the distributed systems behind a data syncing platform. You will help move large volumes of customer data reliably and efficiently…
Added 39 mins ago
TT
Founding Software Engineer
True Talent Solutions Partners
San Francisco, CA
- $200,000 to $250,000 USD / year
Join an early-stage team building AI-powered software for enterprise procurement and supply chains. As a founding engineer, you will help shape the product and engineering direction while…
Added 39 mins ago
TT
Senior Software Engineer, Customer Studio Backend
True Talent Solutions Partners
Remote, United States
- $180,000 to $320,000 USD / year
Join a product-focused backend team building a no-code platform that helps customers activate data directly from their warehouses. You will shape a fast-growing product area, contributing…
Added 39 mins ago
UG
Senior Data Engineer
UnitedHealth Group
Eden Prairie, MN
- $91,700 to $163,700 USD / year
CareData Platform is a Microsoft Azure commercial cloud-based data platform. We are building the technology and data platform to enable OptumCare to pursue complementary strategies of…
Added 40 mins ago
System Software Engineer - Trusted Firmware
NVIDIA Corporation
CA · Santa Clara, CA · Santa Clara
Are you ready to be part of an inclusive team that’s driving the future of technology? As a Tegra System Software Engineer at NVIDIA, you will play a pivotal role in crafting the next…
Added 41 mins ago
Plant Vehicle Team Service Engineer - Louisville Assembly Plant
Ford Motor Company
Louisville, KY
Family building benefits including adoption and surrogacy expense reimbursement, fertility treatments, and more
Added 41 mins ago
Senior Engineer, Occupational Safety
Ford Motor Company
Louisville, KY
The Senior Engineer, Occupational Safety, working without supervision, is the site health and safety subject matter expert responsible for developing innovative solutions to occupational…
Added 41 mins ago
Federal Account Leader- US Navy
Arcadis
Washington
This role requires frequent client engagement, with an emphasis on building and maintaining strong relationships through regular in-person meetings.
Added 41 mins ago
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Product Manager
Bamboo Health Inc
Louisville, KY
- $7.25 USD / hour
BA/BS in Business, Engineer, other relevant field of study or equivalent experience.
Added 41 mins ago
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Staff Software Engineer
Bamboo Health Inc
Louisville, KY
- $7.25 USD / hour
We are actively hiring a full-time Staff Software Engineer who wants to craft something meaningful that will deeply impact people's lives. Bamboo Health supports several customer facing…
Added 42 mins ago
Vertical Sales Engineer II, Spectrum Business
Spectrum
Honolulu, HI
Do you thrive on designing advanced network solutions for clients in specialized vertical markets? As a Vertical Sales Engineer II at Spectrum, you will partner with sales teams and…
Added 52 mins ago
Software Engineer, Full Stack & AI-Native Development (MTS)
Salesforce, Inc.
TX
…Development team is looking for a sharp, curious Full Stack Software Engineer who loves building great software and building it fast with modern AI tooling. This role is first and foremost…
Added 53 mins ago
WI
(USA) Principal, Software Engineer
Walmart Inc.
United States
- $143,000 to $286,000 USD / year
The (USA) Principal, Software Engineer leads the design and delivery of scalable platform capabilities, including cloud-native architectures and AI-enhanced applications. This role drives…
Added 58 mins ago
Product Engineer 2
Lam Research
Tualatin, OR
At Lam, as a Product Engineer, you thrive in high-stakes, dynamic environment, driving product development at the forefront of the semiconductor equipment industry. Collaborating closely…
Added 58 mins ago
RF Engineer 3
Lam Research
Fremont, CA · Fremont
As a RF Engineer at Lam, you play a crucial role in designing, building, and troubleshooting cutting-edge radio frequency (RF) solutions for power delivery and plasma generation in our Etch…
Added 1 hour ago
Supplier Quality Engineer II
COV Covidien LP
Boulder, CO
…unique talents will help shape the future of healthcare while building a career grounded in purpose, growth, and…
Added 1 hour ago
O
Senior/Staff Software Engineer - Tech Lead
OpenMined
Remote, United States
- $125,000 to $258,000 USD / year
We're looking for a Senior / Staff Software Engineer to join OpenMined, a nonprofit building open-source infrastructure for federated AI.

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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