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15 offensive security jobs at 13 companies in Elgin, IL

4w
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Lead, Offensive Security
Louisville or New York City or Dallas or Charlotte or Tampa or Miami or Washington or Chicago or Boston or Atlanta or Nashville
$142k-$196k/yr RemoteFull Time
Humana
HumanaNYSE: HUM: Provides health insurance plans and clinical healthcare services.
6+ YOE6+ Mgmt6+ years in red team/penetration testing with leadership experience; production Python engineering; built or operated agentic AI/LLM applications; experience attacking AI/ML systems; production cloud experience (AWS, GCP, or Azure).
Python, PyRIT, Garak, MITRE ATLAS, OWASP Top 10 for LLM Applications, NIST AI Risk Management Framework, AWS, GCP, Azure, Hack The Box Pro Labs
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1mo
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WebApp Offensive Security Engineer
United States or Chicago
$196k-$242k/yr RemoteFull Time
Horizon3.ai
Horizon3.ai: Autonomous penetration testing platform for continuous security assessment.
Extensive hands-on web application penetration testing experience, ability to reproduce and validate edge-case exploits, strong communication, proxy tool experience (Burp Suite), scripting (Python), and history of security research or bug bounty contributions.
NodeZero, Burp Suite, Python, Nuclei, sqlmap, LangChain, LangFlow, Postgres, Neo4j, Jira, Model Context Protocol (MCP)
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2mo
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Security Engineer
Chicago, Illinois, United States
$145k-$195k/yr OnsiteFull Time
Coinflow
Coinflow: Enables instant global payments using stablecoins and blockchain technology.
4+ YOE4+ years in security engineering or DevSecOps; hands-on offensive and defensive security; SIEM; code experience in TS/Node; vulnerability management; AI-native tooling.
Datadog, Splunk, Elastic, Panther, TypeScript, Node.js, Rust, Go, Python, Claude Security, Claude Code, SAST, DAST, CI/CD
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2mo
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SECURITY OFFICER (B) (HCG-BEL)
Beloit, Wisconsin, United States
$22/hr OnsiteFull Time
Ho-Chunk Nation
Ho-Chunk Nation: Sovereign tribal government providing public services and operating enterprises
1+ YOEHigh school diploma or GED; 1 year security/law enforcement experience; background checks; gaming license obtainable; valid driver’s license; no theft/fraud offenses.
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3mo
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Sr. Info Security Specialist
Chicago, Illinois, United States
$122k-$157k/yr OnsiteFull Time
Cboe
CboeBATS: CBOE: Operates global market infrastructure and provides tradable financial products.
5+ YOE5+ years red teaming or offensive security; bachelor’s degree or equivalent; strong attacker tradecraft; hands-on in endpoint, identity, cloud; knowledge of EDR, SIEM; purple team; communications.
Python, PowerShell, Bash, EDR, SIEM, Cloud security tools, Threat modeling tools
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3w
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Lead Penetration Test Engineer
Boston or Chicago or Dallas or Houston or Englewood or Raleigh or Princeton or New York or Southfield or Washington or Toronto or Calgary or Boulder
$135k-$200k/yr HybridFull Time
S&P Global
S&P GlobalNYSE: SPGI: Provides financial data, analytics, and credit ratings worldwide.
8+ YOEBachelor's degree or equivalent, minimum 8 years information security experience focused on penetration testing, expertise with offensive techniques, cloud/app security, scripting, and at least one offensive security certification.
Burp Suite, Nessus, Metasploit, Nmap, DAST, SAST, SCA, CI/CD, Bash, Python, Go, PowerShell, JavaScript, MITRE ATT&CK, OWASP Top 10, CVE, CVSS, CWE
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2w
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Senior Penetration Testing Engineer
Chicago, Illinois, United States
$93k-$144k/yr HybridFull Time
Alliant Credit Union
Alliant Credit Union: Provides digital banking, consumer loans, and mortgage lending services.
3+ YOEBachelor's in CS/related or 6 years' equivalent; minimum 3 years penetration testing/offensive security; preferred offensive security certifications; strong communication and reporting skills.
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3w
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Senior Red Team Operator
Minneapolis or Atlanta or Cincinnati or Cupertino or Portland or New York or Chicago or Englewood or Charlotte or Irving
$133k-$157k/yr HybridFull Time
U.S. Bank
U.S. BankNYSE: USB: Provider of personal, business, and institutional financial services.
8+ YOEBachelor's degree or equivalent, 8+ years in information security with offensive security/Red Team experience; expertise in exploit development, offensive tooling, and scripting; strong communication and leadership.
Cobalt Strike, Metasploit, Mythic, Sliver, Python, PowerShell, C/C++, C#, Go, Shell, EDR, XDR, Infrastructure as Code (IaC)
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1mo
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Staff Attack Engineer, OCI
Chicago or United States
$247k-$275k/yr RemoteFull Time
Horizon3.ai
Horizon3.ai: Autonomous penetration testing platform for continuous security assessment.
10+ YOE10+ years engineering or offensive security experience, hands-on OCI offensive security experience, strong cloud attack path knowledge, Python coding, web and cloud pentesting experience, strong research and documentation skills.
Python, NodeZero, Oracle Cloud Infrastructure (OCI), Oracle Kubernetes Engine (OKE), Kubernetes, AWS, Azure, GCP
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1mo
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Principal Red Team Operator
Johnston or Boston or Iselin or Pittsburgh or Cleveland or Chicago or Philadelphia or Manchester
$120k-$210k/yr HybridFull Time
Citizens Financial Group
Citizens Financial GroupNYSE: CFG: Provides retail, commercial, and private banking services to customers.
4+ YOE4+ years hands-on offensive security experience with red/purple team operations, adversary emulation, campaign-based testing; Bachelor's preferred or equivalent experience; OSCP/OSEP/CRTO/CRTP or similar; AI security exposure; strong communication.
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3w
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Associate Principal, Adversarial Red Team
Chicago, Illinois, United States
$122k-$197k/yr HybridFull Time
Options Clearing Corporation
Options Clearing Corporation: Clearing and settlement for equity derivatives and options.
5+ YOE5+ years in cybersecurity with 3+ years penetration testing; strong offensive security skills (OSINT, red team, C2, evasion), programming/scripting, cloud testing (AWS/Azure), EM/EDR familiarity, excellent communication, and security certifications preferred.
AI/LLM, Model Context Protocol (MCP), AWS, Azure, Crowdstrike, Carbon Black, Kali, Armitage, Metasploit, Cobalt Strike, Nighthawk, Nmap, Qualys, Nessus, Burp Suite, Wireshark, Recon-NG, Ettercap, Bettercap, Hashcat, Bloodhound, Ida Pro, Ghidra, Sublist3r, Rubeus, Mimikatz, CrackMapExec, Exploitdb, Yersinia, Impacket, MSSQL, DB2, MySQL, Microsoft Word, Microsoft Excel, Microsoft PowerPoint, Microsoft Visio, Microsoft SharePoint, ServiceNow, DMS, PolicyTech
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3w
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Lead Penetration Test Engineer
Princeton or Boston or Chicago or Dallas or Houston or Englewood or Raleigh or New York or Southfield or Washington or Toronto or Calgary
$135k-$200k/yr HybridFull Time
S&P Global
S&P GlobalNYSE: SPGI: Provides independent credit ratings, market benchmarks, and financial analytics.
8+ YOEBachelor's or equivalent, 8+ years in information security with penetration testing focus; hands-on with Burp Suite, Nessus, Metasploit, Nmap; scripting (Bash, Python, Go, PowerShell, JavaScript); offensive cert (OSCP or similar).
Burp Suite, Nessus, Metasploit, Nmap, MITRE ATT&CK, OWASP Top 10, DAST, SAST, SCA, CVE, CVSS, CWE, Bash, Python, Go, PowerShell, JavaScript, CI/CD
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3w
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Forward deployed engineer Chicago
Chicago, Illinois, United States
FieldFull Time
Aikido Security
Aikido Security: Developer-first security platform for code, cloud, and runtime.
Strong infrastructure and networking fundamentals (Docker, DNS, TLS), Linux debugging, ability to read Go/TypeScript/Python, familiarity with enterprise networks, basic offensive security knowledge, strong communication; must live in Chicago.
Docker, Postgres, Go, TypeScript, Python, Linux, AWS, Azure, GCP, SSO, IdP, PKI, DNS, TLS
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1mo
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Penetration Tester
New York or Washington or Chicago or Wilmington or Jersey City or Brooklyn or Tampa or Atlanta or McLean or Plano or Houston or Columbus
$152k-$260k/yr OnsiteFull Time
JPMorgan Chase
JPMorgan ChaseNYSE: JPM: Global financial services firm providing banking and investment solutions.
5+ YOE5+ years penetration testing experience across web, API, cloud, infrastructure, thick-client, and mobile; strong manual testing skills, reporting ability, and knowledge of OWASP/NIST frameworks; relevant offensive security certifications preferred.
Burp Suite, Nmap, Metasploit, AWS, Azure, GCP, OWASP Top Ten, NIST Cybersecurity Framework, Python, Java, Rust, Android, iOS, Windows, Unix
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1mo
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Cyber Purple Team Operator
Chicago or Tempe
$100k-$169k/yr HybridFull Time
Northern Trust
Northern TrustNASDAQ: NTRS: Financial services for individuals, families, and global institutions.
3+ YOE3+ years in cybersecurity with purple/red/blue teaming experience; strong MITRE ATT&CK knowledge; coding/scripting (Python/PowerShell/Bash); SIEM/EDR; cloud security; offensive security tools; AI automation; cloud environments; AD/EntraID; OSI/networking concepts; EDR evasion payloads; relevant certifications.
Cobalt Strike, Metasploit, Caldera, Mythic, Breach and Attack Simulation, Python, PowerShell, Bash, Azure, AWS, EntraID, Active Directory, EDR, SIEM
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