Find work in the United States.

6,291,184 jobs across our US network. How we count

Jobs in the United States

25+ jobs

Save this search

Added just now
Lead Fleet Performance Engineer
GE Vernova
Unspecified, PA
The Fleet Performance Engineer for GE Vernova is responsible for monitoring, analyzing, and interpreting the technical performance of the installed fleet to identify abnormal behavior,…
Added just now
Wiring Technician - 2nd Shift
GE Vernova
Rostraver Township, PA
…with over 12,000 employees. Grid Solutions provides equipment, systems, and services to bring power reliably and efficiently from the point of generation to end power consumers. We…
Added just now
GV
Senior Manager - Engineering Capability & Transformation Leader (m/f)
GE Vernova
Charleroi, PA
- $162,900 to $244,000 CAD / year
Stakeholder Communication & Program Leadership: Connect the Talent & Skills workstream with the four other Engineer 2030 workstreams: Culture, Systems Engineering, Technologists, and…
Added just now
Laboratory Operations Support Engineer
Eurofins US Network
Spring House, PA
Assist with the migration, organization, and maintenance of equipment and operational records within Computerized Maintenance Management Systems (CMMS) and other applicable business systems.
Added just now
GIS FIELD ENGINEER / SUPERVISOR
GE Vernova
Charleroi, PA
GE VERNOVA is looking for a GIS Field Engineer / Supervisor to lead the installation, supervision, maintenance, testing, and engineering oversight of Gas Insulated Switchgear (GIS) systems…
Added 1 min ago
Field Service Engineer
Rivers Agile
Callery, PA
…Rivers Agile is looking for a skilled and driven Field Service Engineer to join our team, supporting a project with one of our clients. In this role, you will be responsible for installing,…
Added 1 min ago
Sr. Sustaining Mechanical Engineer
Philips
Murrysville, PA
Sr. Sustaining Mechanical Engineer (Murrysville, PA)
Added 1 min ago
DevOps II / SRE
Robert Half
Philadelphia, PA
We are seeking a DevOps II / Site Reliability Engineer to help build and mature a growing Site Reliability Engineering (SRE) function supporting large-scale digital platforms. This role…
Added 1 min ago
BH
Field Engineering Intern- Summer 2027 Opportunities
Baker Hughes Inteq
Canonsburg, PA
- $22 to $44 USD / hour
Added 1 min ago
WC
Co-Op, Test Engineer - Transducer (January-June 2027)
Wabtec Corporation
State College, PA
- $25 to $28 USD / hour
Assist Sr. Test Engineer in evaluation, development and implementation of new test systems and protocols
Added 2 mins ago
Electrical Engineer, Protection
FirstEnergy
Greensburg, PA · Reading, PA
Performing timely analysis of automatic tripping of the transmission and sub-transmission systems. Gathering and analyzing SCADA alarm data, relay targets, digital fault recorder and relay…
Added 2 mins ago
Systems Integration/Test Engineer - Level 3 Sr
Lockheed Martin
King of Prussia, PA
As a Senior Systems Integration and Test Engineer, you will plan and execute integration and verification activities for hardware and software components, subsystems, and systems. You will…
Added 2 mins ago
AT
Machine Learning Senior Software Engineer
Akamai Technologies, Inc.
Harrisburg, PA
- $121,400 to $218,600 USD / year
As an ML Senior Software Engineer, you will build and operate systems responsible for model validation, quantization, and safety across the AIC. You'll develop pipelines that scan models…
Added 2 mins ago
Senior Security GRC Engineer, AI & Automation
American Express Global Business Travel
Harrisburg, PA
AmexGBT’s Security GRC team is looking for a talented Senior Security GRC Engineer to design, build, and scale automation and AI-driven solutions that modernize our governance, risk, and…
Added 2 mins ago
Senior Software Engineer (Institutional, Financing)
Coinbase
Harrisburg, PA
As a Senior Software Engineer on the Financing Engineering team within the Institutional group, you'll design, build, and scale the systems that safely manage billions of dollars in loans…
Added 2 mins ago
Head of Forward Deployed Engineering
Bausch + Lomb
Harrisburg, PA
Bausch + Lomb is seeking a Head of Forward Deployed Engineer (FDE) to turn AI from pilots into production capability across B+L. This is a hands-on builder role embedded in manufacturing,…
Added 2 mins ago
Lead Software Engineer
Highmark Health
Harrisburg, PA
The job is an integral member of an agile software engineer team responsible for building scalable software applications across all digital channels to serve our customers. The position…
Added 2 mins ago
Associate Software Engineer
Highmark Health
Harrisburg, PA
This job is an integral member of an agile software engineer team responsible for building scalable software applications across all digital channels to serve our customers. Responsible for…
Added 2 mins ago
Project Engineer
Veolia North America
Harrisburg, PA
…plants, lift stations and the collection system. Leads as project engineer for water and wastewater system additions and modifications working closely with company personnel in…
Added 2 mins ago
AT
Senior Software Engineer
Akamai Technologies, Inc.
Harrisburg, PA
- $121,400 to $218,600 USD / year
As a Software Engineer Senior, you will be responsible for:
Added 2 mins ago
T
Information Security Engineer
TTEC
Harrisburg, PA
- $65,000 to $70,000 USD / year
…award-winning employment experience. As a Information Security Engineer working remote in US, you’ll be a part of bringing humanity to business.…
Added 2 mins ago
Senior Telecom Engineer
Maximus
Harrisburg, PA
Maximus is seeking an experienced Senior Telecom Engineer to lead the design, implementation, and optimization of Genesys Cloud solutions. This role is responsible for executing large-scale…
Added 2 mins ago
TA
Senior Software Engineer (Platform Engineering)-Remote, USA
Tempus AI, Inc.
Remote, United States
- $130,000 to $150,000 USD / year
The Senior Software Engineer is a hands-on technical leader responsible for architecting and delivering the Java-based services at the core of Ambry's platform modernization. This role…
Added 3 mins ago
Network engineer 2 (us citizenship required)
First National Bank
Pittsburgh, PA
…experience without a bachelor's degree. Position Title: Network Engineer 2Business Unit: TechnologyReports to: Manager of Network EngineeringPosition Overview:This position is primarily…
Added 3 mins ago
Network engineer 2 (us citizenship required)
First National Bank
Pittsburgh, PA
…experience without a bachelor's degree. Position Title: Network Engineer 2Business Unit: TechnologyReports to: Manager of Network EngineeringPosition Overview:This position is primarily…

Fly.io

Platform Security Engineer

Remote, United States

$180,000 to $225,000 USD / year

Apply About employer

Applications open in a new tab.

Job details

Pay: $180,000 to $225,000 USD / year
Posting language: English
Posted: Nov 5, 2026

Original job description

About Fly.io

We're building a public cloud that runs on our own hardware all over the world. Customers hand us containers; we convert them into micro-VMs under hardware virtualization, each with its own kernel, on thousands of bare-metal hosts we operate ourselves. A growing share of those workloads are AI agents and inference, which means a growing share of the people attacking cloud platforms are interested in us.

Isolation is the product. The boundary between one customer's workload and the next, and between any workload and our own control plane, is a stack of things we build and run: the VMMs and their jailers, seccomp filters, host networking rules, the identity each host presents to the rest of the fleet, and the custom kernel underneath all of it. When that boundary holds, nobody notices. That's the job.

The Role

We have a security team. It covers application security, trust boundaries and auth, vulnerability research against our own hypervisor stack, corporate security, compliance, and disclosure. What it doesn't have is someone who works alongside the platform team hacking on the platform itself: the kernel, the hypervisor jailers, the syscall filters, host network isolation, and the trust relationships between hosts. That's the gap this role closes.

The work has two halves, and you will own both:

• Keep the guest in the VM. Harden the per-workload boundary on every host.

• Plan for the worst. Limit the blast radius for when the next horrible KVM guest-to-host escape drops.

You will report to the Head of Security, who will set your priorities and review your work, but you will spend most of your day with the Platform team, who own the systems you will be changing. Coordination and communication will be just as important as raw technical skills.

What You'll Be Doing

Isolation and sandboxing. We run two VMMs, Firecracker and Cloud Hypervisor, with jailers around them. You will own the syscall filtering, the process-level confinement, the network confinement around the jailers, and the violation telemetry that feeds our detection pipeline, across both VMMs and the host services that make up the platform.

Host network isolation. A lot of our fleet's isolation rests on nftables and friends. You will own what each host is allowed to talk to, by role, and the health checks and killswitches that tell us the rules in force are the ones we intended.

Blast radius and control-plane trust. The second half of the job. You will own the trust model between hosts and the control plane: how a host identifies itself and how its actions are attributed, how host-to-host operations such as machine migration are authorized, which services run on hosts that also run customer workloads, and what credentials live on a host and what each one can reach. You will design this with the Platform and Networking teams, build the host-local pieces yourself, and verify the rest.

The kernel. We build and patch our own host kernel. You will own the patching cadence and its SLA, keep kernel expertise spread across the fleet team rather than concentrated in one person, and own live kernel patching for the fixes that cannot wait for a reboot cycle.

Agent workloads. The platform increasingly runs agents, including a sandbox product for them. You will take the isolation half of that design seat: VMM confinement, worker-side controls, and what the platform can honestly guarantee an agent workload. This may even include compute where we no longer own the metal, and we will need to design for a fleet that spans trust levels.

When it breaks. A suspected guest escape, a host behaving strangely, weird kernel behavior: these need someone who can lead the technical investigation on the host, not just coordinate it. You will be one of the names we call, and you will help strengthen our forensics playbook.

You will want to be comfortable working with coding agents. We lean on them hard, and the honest truth of low-level security work is that an agent will confidently hand you a kernel patch that is subtly wrong. You will need to be the person who catches it.

Who We're Looking For

• You've shipped non-trivial Linux kernel, KVM or hypervisor, or BPF security work in production.

• You have production experience with seccomp filters, jailer or sandbox configuration, or VM isolation hardening.

• You have one anchoring domain (kernel and sandboxing, or host networking) with credible reach into the others. You will ramp across the rest over 6 to 12 months.

• You've run hardware virtualization on hardware you didn't control: bare-metal cloud instances, nested virtualization, or hosts in a customer's account. Not required, but definitely nice-to-have.

• You've been the platform-security specialist on a security team before, and you've shipped security work in a matrixed org by collaboration rather than authority.

• You're comfortable being the technical authority on low-level work without a more senior security engineer above you.

• You write well asynchronously. Most of Fly happens in Slack threads and written design discussions.

This is not an application-security role. If your background is primarily SAST, code review, or web app pentesting, we already have that lane covered.

Other Important Things to Know We don't want to sell you a bill of goods. A few things about this role are genuinely hard:

• You will be the depth. Nobody in the security function can backstop you on kernel, syscalls, BPF, or network isolation. Your technical sparring partners are our vulnerability researcher and the Platform and Networking teams, and those are relationships you will build.

• Much of the work lives in systems other teams own. You will change code in the platform and networking repositories, and those teams are busy. Getting things shipped depends on collaboration and clear writing more than on org-chart authority. The reporting line is designed to protect your priorities, not to let you dictate theirs.

• The scope is real and the structure is thin. There's no backlog handed to you. Work surfaces from incidents, from Slack, from the fleet. You will manage your own scope, and that is harder than it looks.

• We're on call, and our stuff is global. When isolation breaks, customers notice, in every time zone.

Extrapolate the bad implications, then ask us about them, and we'll be candid.

Our Process for Hiring

This is a senior, fully-remote, full-time position. We offer competitive equity grants with a long exercise window, health care benefits, flexible vacation time (with a minimum), and hardware and phone allowances.

We respect career experience but we aren't hypnotized by it, and we don't trust resumes or interviews to tell us who can do this work. Instead we show you the kind of work we actually do and see if you enjoy doing it. The process is about five hours of your time end to end:

• Short written application. A few questions about your background and how you work.

• Work sample (async, 2 to 3 hours). A kernel live patch for a recent CVE on a preconfigured environment we give you, a short critique of an AI-generated attempt at the same patch, and a paragraph on how you used AI tooling along the way.

Phone Screen - 15-20 min HR Phone Screen

• Workday (live, 2 hours). You and one of our platform engineers will work a host-isolation scenario together over Slack. Coding agents are welcome; we want to see how you drive one.

• Final (30 minutes). A conversation with our CEO.

Apply About employer

More about this job

Skills

Research
Regulatory compliance
Communication skills
Linux
Collaboration
Penetration testing
Reporting

Report this job