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Company · Managed cybersecurity services

Sigma Defense

As of 3 November 2026, Sigma Defense has 58 open roles (26 new in 30 days), its it operations & business systems team is hiring most, and its postings name Linux, Microsoft Windows and Red Hat Enterprise Linux as the tools the team works in.

As of 3 November 2026 · refreshed daily · counts move as websites, DNS and career sites are re-read.

Perry, United States51-200 employees10M-50M revenue, est.B2Gsigmadefense.com ↗LinkedIn ↗
Headquarters
Perry, Georgia, United States
Employees
51-200 employees (estimated)
Sells to
joint command and coalition leaders, cio and cto of defense programs, training commands
Certifications on site
Site languages
EN
Career system
Workable
58open roles · 26 new in 30 days
14tools named in postings
United Stateshiring locations
0change signals read in postings
02What they do, whom they sell to, who else does it

Sigma Defense in one screen

Read from sigmadefense.com: what the company does, the customers it names, the buyers we can actually see, and the companies that sell the same thing.

What Sigma Defense does

Sigma Defense is a technology company that provides command and control, software development, secure networking, cyber operations, radar design, electronic warfare, and training solutions for U.S. and coalition forces. Its offerings include C5ISR systems, CJADC2 integration, the DevSecOps platform Sigma Software Studio, and the Aries Defense sensor-to-network solution. It serves joint command leaders, defense program CIOs and CTOs, training commands, ISR teams, and cybersecurity managers.

C5ISR systemsCJADC2 integrationDevSecOps platformSigma Software StudioAries Defense sensor-to-network solution
Whom it sells to

Named on the site: joint command and coalition leaders, cio and cto of defense programs, training commands, isr and battle management teams, cybersecurity and iss managers, defense and military, government agencies.

Who else sells this

Nearest companies by what they do, sell and whom they serve, 51+ employees. 581 scored.

DefsecintelEstonia · 51-200 employeesMAG AerospaceUnited States · 1001-5000 employeesCitadel EdgeAustralia · 51-200 employeesREDCOMUnited States · 51-200 employeesDunyapacificID · 201-500 employeesTodylUnited States · 51-200 employees
03Tech stack, with the evidence

What Sigma Defense says it runs

Tools named in the company's own postings as the team's systems, with the sentence that says so. What the website and DNS show is listed separately.

LinuxEngineering (non-software) · high confidence · 14 postings
• Lead efforts to harden Windows/Linux systems, applications, network devices, and various hardware within the CANES environment.
1784 - Network Security Engineer III · first seen 2026-10-21
Microsoft Windowshigh confidence · 11 postings
• Review, document, and verify DISA STIG compliance for Windows, Red Hat Enterprise Linux, and supporting infrastructure.
1772 - Information System Security Officer · first seen 2026-10-21
Red Hat Enterprise LinuxIT operations & business systems · high confidence · 9 postings
• RHEL expertise/Admin (RHEL 7+ ideal)
1784 - Network Security Engineer III · first seen 2026-10-21
GitLabIT operations & business systems · high confidence · 7 postings
• Submit configuration updates via GitLab/GitHub, Spork/Spork+.
1785 - Network Security Engineer II · first seen 2026-10-21
Windows Serverhigh confidence · 7 postings
• Basic hands-on experience with Windows Server environments (e.g.
1742 - Junior System Administrator · first seen 2026-10-21
CiscoIT operations & business systems · high confidence · 6 postings
• Cisco
1787 - Application Systems Integration Engineer III · first seen 2026-10-27
Microsoft AzureIT operations & business systems · high confidence · 6 postings
Sigma Defense is seeking a Virtual Desktop Infrastructure Engineer to be a hands-on Azure Virtual Desktop engineer who understands both the user-facing desktop experience and the Microsoft Azure infrastructure supporting it.
1750 - Virtual Desktop Infrastructure Engineer · first seen 2026-10-21
VMwareIT operations & business systems · high confidence · 6 postings
• VMware
1787 - Application Systems Integration Engineer III · first seen 2026-10-21
KubernetesSoftware engineering · high confidence · 4 postings
Sigma Defense is seeking a Senior Kubernetes Infrastructure Developer to be a Kubernetes platform engineer and infrastructure developer, not simply a user of Kubernetes.
1758 - Senior Kubernetes Infrastructure Developer · first seen 2026-10-21
Active Directoryhigh confidence · 3 postings
• Integration points: Active Directory and OpenAM, MS Exchange, VMWare, AWS, OpenShift, MS Systems Center solutions, System Incident and Events Management, IIS, JBOSS, Cisco Integrated Services Engine, and Group Policy Management.
1787 - Application Systems Integration Engineer III · first seen 2026-10-27
Azure PolicyIT operations & business systems · high confidence · 3 postings
• Experience implementing Azure Policy.
1750 - Virtual Desktop Infrastructure Engineer · first seen 2026-10-21
Bitbuckethigh confidence · 3 postings
• Responsible for automating these processes using PowerShell and Ansible along with Git/BitBucket for script and configuration data management.
1787 - Application Systems Integration Engineer III · first seen 2026-10-29
JiraProduct, program & project management · high confidence · 3 postings
The Scrum Master facilitates Agile ceremonies, coordinates cross-functional engineering teams, tracks sprint progress and dependencies, removes impediments, and maintains Jira boards and documentation.
1790 - Scrum Master · first seen 2026-10-27
Microsoft Defender for CloudIT operations & business systems · high confidence · 3 postings
• Experience with Microsoft Defender for Cloud and Microsoft Defender for Endpoint.
1750 - Virtual Desktop Infrastructure Engineer · first seen 2026-10-21
On the website or in DNS

Vendors whose code loads on sigmadefense.com or whose records sit in its DNS. Page plumbing (libraries, fonts, consent banners) is left out.

04Hiring

58 open roles, 29 opened in 90 days

Read hourly from the company's career system. Open roles and new roles in the last 30 days, by team. Companies hiring it operations & business systems in United States →

Open roles by team
open · new 30 d
IT operations & business systems
16 · 6
Software engineering
10 · 6
Engineering (non-software)
7 · 3
Education & training
5 · 0
Product, program & project management
4 · 2
Legal, compliance & risk
2 · 0
Administration & office
1 · 1
Arts media and entertainment
1 · 0
Business development & strategy
1 · 1
Construction and civil
1 · 1
Manufacturing and production
1 · 0
Skilled trades and field service
1 · 0
Newest postings
05Signals

What is changing, read from the postings

Intents are events the employer states about itself, each with the sentence and the posting it came from.

No change signals read in the current postings.

Decision makers at Sigma Defense, with verified e-mails, and every change the moment it is posted.

Sales, marketing and IT leaders by function. Add Sigma Defense to a monitor and get a webhook when a role opens, a tool appears or a signal is read.

Start free, no card. The first 20 are above; e-mails are verified at the mail server when you open them.

06Lookalikes

Companies like Sigma Defense

Nearest by what they do, what they sell and whom they sell to, 51+ employees. 6 of 581 scored.

DefsecintelUav aerospace manufacturers · Estonia51-200 employees
MAG AerospaceOther aerospace & defence manufacturing · United States1001-5000 employees
Citadel EdgeManaged cybersecurity services · Australia51-200 employees
REDCOMDefence systems manufacturers · United States51-200 employees
DunyapacificDefence systems manufacturers · ID201-500 employees
TodylManaged cybersecurity services · United States51-200 employees
07Profile

From the company's own website

Legal nameSigma Defense
IndustryTechnology & software · Managed cybersecurity services
OfferingsC5ISR systems · CJADC2 integration · DevSecOps platform · Sigma Software Studio · Aries Defense sensor-to-network solution
Target customersjoint command and coalition leaders · cio and cto of defense programs · training commands · isr and battle management teams · cybersecurity and iss managers · defense and military · government agencies
Geographic scopeinternational · also United Kingdom
Reviews found
Public contact points0 role addresses · 1 phone numbers
Pages readhome
Datescrawled 2026-10-29 · profiled 2026-10-31 · hiring built 2026-11-02
Cite this

Quote the sentence with the date and the link. The numbers change daily; the link always shows the current ones.

Sigma Defense (Perry, United States, 51-200 employees) has 58 open roles, 26 new in 30 days, and names 14 tools in its postings. (Breaknorm, 3 November 2026, https://breaknorm.co/company/sigmadefense.com)
How we know

Read from the source, not self-reported

Every number on this page can be traced to a page we crawled or a posting we read. Full methodology →

  • ProfileBuilt from sigmadefense.com: summary, offerings, customers, certifications and contact points are extracted from its pages, with a confidence score per field.
  • HiringRead hourly from the company's Workable career site; reposts collapse into one record.
  • Tech stackTools the employer's own text names as the team's systems, with the quote; website scripts counted separately.
  • HeadcountLinkedIn where known, otherwise estimated from the site.
FAQ

Sigma Defense: questions

Does Sigma Defense use Linux?

Yes, by the company's own words: 14 postings name it, first seen 2026-10-21, in the engineering (non-software) team.

Is Sigma Defense hiring?

58 open roles as of 3 November 2026, 26 opened in the last 30 days and 2 closed. The largest team hiring is it operations & business systems.

Where does this profile come from?

From sigmadefense.com itself: we crawled it on 2026-10-29, built the profile on 2026-10-31, and read its career site (Workable) hourly since. Headcount is from LinkedIn.

Who should I write to at Sigma Defense?

The people are behind the login: decision makers by function, verified at the mail server when you open them. 0 public role addresses from the site are there too.

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