Now Hiring 16 Open Positions // 7 Departments

Join the Core.

We build fundamental systems that organizations trust when failure implies disaster. ACX is not a conventional technology company. We operate at the intersection of intelligence, defense, and enterprise infrastructure — where precision is existential.

Team Size
5,891
Countries
23
PhDs on Staff
412
Avg Tenure
4.2yr
Offer Accept Rate
94%
> 01 // Philosophy

How We Operate

ACX hires operators, not observers. Every engineer ships to production. Every analyst defends their thesis. Every designer justifies every pixel. We do not tolerate bureaucracy, politics, or performative work.

Our teams are small, autonomous, and directly accountable to outcomes. We deploy engineers to client sites — sometimes in data centers, sometimes in embassies, sometimes in environments we cannot name. Comfort is not a prerequisite.

Radical Ownership

You own your domain end-to-end. No handoffs. No excuses. If it breaks at 3AM in a classified facility, you fix it.

Institutional Impact

Your work will run inside organizations that cannot afford downtime. The stakes are measured in national security, not sprint velocity.

Hyper-Competence

We hire the top 1% and give them the hardest problems on Earth. Mediocrity is structurally impossible here.

> 02 // Compensation

Benefits & Equity

We compensate at the top of market because we expect output at the top of market. All full-time employees receive equity, comprehensive benefits, and deployment support.

Top-of-Market Salary

90th percentile base comp benchmarked quarterly

Pre-IPO Equity

ISOs with 4yr vest, 1yr cliff, double-trigger acceleration

Signing Bonus

$25K–$100K based on role and clearance level

Deployment Pay

1.5x–2x multiplier for forward-deployed assignments

Healthcare

100% premium coverage, medical/dental/vision

401(k) Match

6% match, fully vested from day one

Clearance Sponsorship

Full TS/SCI + polygraph sponsorship where applicable

Learning Budget

$10K/year for conferences, courses, and certifications

> 03 // Requisitions

Open Positions

All positions require U.S. citizenship or equivalent Five Eyes eligibility unless otherwise noted. Clearance requirements are specified per role. Remote positions available for select engineering roles.

Forward Deployed Engineer

Global // On-Site TS/SCI FDE-2026-001
> Apply Now

Senior Backend Engineer — AIC

Palo Alto, CA // Hybrid SECRET SBE-2026-002
> Apply Now

Infrastructure Engineer — Nexus

Denver, CO // On-Site TS/SCI INF-2026-003
> Apply Now

Embedded Systems Engineer — Horizon

Austin, TX // On-Site SECRET ESE-2026-004
> Apply Now

Platform Reliability Engineer (SRE)

Washington, D.C. // Hybrid PUBLIC TRUST SRE-2026-005
> Apply Now

Compiler & Runtime Engineer

Palo Alto, CA // Remote OK NONE CRE-2026-006
> Apply Now

Product Manager — Vanguard

Washington, D.C. // On-Site TS/SCI PM-2026-007
> Apply Now

Technical Program Manager

New York, NY // Hybrid SECRET TPM-2026-008
> Apply Now

Offensive Security Researcher

Classified Site // On-Site Only TS/SCI + POLY OSR-2026-009
> Apply Now

Cryptographic Systems Engineer

Denver, CO // On-Site TS/SCI CSE-2026-010
> Apply Now

Senior ML Engineer — Ontology

Palo Alto, CA // Hybrid SECRET MLE-2026-011
> Apply Now

Applied Research Scientist — NLP

London, UK // Remote OK NONE ARS-2026-012
> Apply Now

Forward Deployment Coordinator

Washington, D.C. // On-Site SECRET FDC-2026-013
> Apply Now

DevOps Engineer — Classified Cloud

Denver, CO // On-Site TS/SCI DOE-2026-014
> Apply Now

Strategic Account Executive — Defense

Washington, D.C. // Hybrid SECRET SAE-2026-015
> Apply Now

Corporate Counsel — National Security

New York, NY // Hybrid PUBLIC TRUST CCN-2026-016
> Apply Now