Red Team - Sr Security Engineer

WellSky; Overland Park (KS); On-site; USD 130,000 - 180,000; Full time

Benefits offered by this job

Excellent medical benefits

Mental Health support

Paid time off + holidays

401(k) retirement plan

Educational assistance

Job summary

WellSky is seeking a Sr Security Engineer focused on red team activities to strengthen enterprise security across on-prem and cloud environments. You will design and run adversary emulation exercises, lead hardening efforts, and guide development and operations teams on secure practices.

The role requires hands-on offensive security experience, familiarity with MITRE ATT&CK, and proficiency with tools like Burp Suite, Nmap, Metasploit, BloodHound, and Cobalt Strike.

Qualifications

• Bachelor's degree in a related field or equivalent work experience.
• 4-6 years related work experience.
• At least 2 years in an offensive security role: pen testing, red team, adversary emulation, or purple team.
• Hands-on attack lifecycle experience against enterprise networks, cloud, and web apps.
• Familiarity with MITRE ATT&CK framework and offensive tooling.

Responsibilities

• Design, scope, and execute red team engagements and adversary emulation exercises.
• Lead security measures across systems, SDLC, hardening, and incident response.
• Develop security controls in cloud and colocation environments in line with policy.
• Analyze requirements and propose improvements aligned with standards and compliance.
• Provide guidance to dev and IT teams on secure design and deployment.
• Participate in security incident response, detection, containment, and escalation.
• Serve as SME for security tools; optimize configurations and workflows.
• Leverage AI tools to enhance decision-making and automate tasks.

Skills

Penetration testing

Adversary emulation

MITRE ATT&CK

Cloud security

AI-assisted tooling

Education

Bachelor's degree or equivalent

Tools

Burp Suite

Nmap

Metasploit

Cobalt Strike

BloodHound

Job description

The Red Team - Sr Security Engineer is responsible for enterprise information security systems and infrastructure platforms for WellSky. The scope of this job includes information system security administration and maintenance, vulnerability management, and configuration of other security software and solutions.

Key Responsibilities:

• Design, scope, and execute red team engagements and adversary emulation exercises against WellSky systems, cloud environments, and applications, and partner with detection engineering to close the gaps those exercises expose.
• Lead the implementation and enhancement of security measures across systems and software development processes, system hardening, monitoring, vulnerability assessment and remediation, incident response, disaster recovery by enforcing secure software development lifecycle practices and considering emerging cybersecurity threats.
• Develop and enforce security controls in colocation and cloud environments in strategic alignment with WellSky policies.
• Analyze technical requirements and recommend solutions or enhancements to provide actionable guidance for the business that align with industry standards and regulatory compliance.
• Provide technical guidance to development and IT teams by fostering secure software design and deployment.
• Participate in the security incident response process by aiding in detection, notification, containment, resolution, and escalation of incidents as needed.
• Serve as a subject matter expert for security tools (e.g., SIEM, DLP, EDR, SAST, SCA), optimize configurations and workflows, and provide guidance to other information security teammates and assign tasks as needed.
• LeverageAItools and platforms as an integral part of daily responsibilities to enhance decision-making, streamline workflows, and drive data-informed outcomes.
• Perform other job duties as assigned.

Required Qualifications:

• Bachelor's degree in a related field or equivalent work experience
• 4 - 6 years related work experience
• At least 2 years of the above experience in an offensive security role: penetration testing, red teaming, adversary emulation, or purple team
• Hands-on experience executing the full attack lifecycle - reconnaissance, initial access, privilege escalation, lateral movement, persistence, and exfiltration - against enterprise networks, cloud environments, and web applications
• Working knowledge of the MITRE ATT&CK framework for planning engagements and mapping findings to detection coverage
• Proficiency with offensive tooling such as Burp Suite, Nmap, Metasploit, BloodHound, and Impacket, and with at least one command-and-control framework such as Cobalt Strike, Sliver, or Mythic
• Cloud attack and defense experience in AWS, Azure, or GCP, including IAM abuse paths, misconfiguration exploitation, and cloud-native logging and controls
• Demonstrated ability to communicate findings to both engineering teams and executives, including business risk, exploitability, and prioritized remediation guidance
• Demonstrated daily use of AI assistants and agentic coding tools such as Claude Code, GitHub Copilot, or Cursor to accelerate research, tooling development, log analysis, and reporting
• Practical prompt engineering skill, including decomposing security tasks for large language models and critically validating AI-generated output before acting on it
• Understanding of the security and privacy risks introduced by AI tooling, including safe handling of PHI and other sensitive data in prompts and adherence to responsible-use policies

Preferred Qualifications:

Offensive depth

• Detection engineering and purple team collaboration, including writing or tuning SIEM detections based on emulated adversary behavior
• Malware analysis, reverse engineering, or custom payload development and EDR evasion in an authorized testing context
• Active Directory and Microsoft Entra ID attack path analysis and hardening
• Container and Kubernetes security testing, and CI/CD pipeline or software supply chain attack techniques
• Application security depth, including SAST, DAST, and SCA triage, secure code review, and threat modeling
• Contributions to the security community such as open-source tooling, CVE research, CTF placement, conference talks, or published research
• Scripting and automation ability in Python, PowerShell, Bash, or Go to build tooling and automate repetitive testing

AI and machine learning security

• Experience testing AI and LLM-enabled applications for prompt injection, jailbreaks, insecure output handling, data leakage, and agent or tool-abuse paths
• Familiarity with the OWASP Top 10 for LLM Applications, MITRE ATLAS, and the NIST AI Risk Management Framework
• Experience building AI-assisted security automation, such as agents or scripts for alert triage, recon enrichment, log correlation, or evidence collectionUnderstanding of how to secure AI infrastructure, including model endpoints, MCP servers and tool integrations, RAG data stores, and API key management for AI services
• Experience evaluating third-party AI tools for enterprise risk and defining safe-use guardrails

Certifications, any of the following

• Offensive security: OSCP, OSEP, OSWE, CRTO, GPEN, GXPN, or PNPT
• Cloud: AWS, Azure, or GCP security specialty certification
• General: CISSP, GCIH, or GCIA

Healthcare and compliance

• Healthcare industry experience
• Working knowledge of the HIPAA Security Rule, HITRUST CSF, SOC 2, and NIST 800-53 or the NIST Cybersecurity Framework, and how they constrain offensive testing scope and evidence handling
• Experience conducting authorized testing in regulated environments under formal rules of engagement and change-control processes

Job Expectations:

• Willing to work additional or irregular hours as needed
• Must work in accordance with applicable security policies and procedures to safeguard company and client information
• Must be able to sit and view a computer screen for extended periods of time

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WellSky is where independent thinking and collaboration come together to create an authentic culture. We thrive on innovation, inclusiveness, and cohesive perspectives. At WellSky you can make a difference.

Here are some of the exciting benefits full-time teammates are eligible to receive at WellSky:

• Excellent medical with Rx, dental, and vision benefits
• Mental Health support through EAP
• Generous paid time off, plus 13 paid holidays
• 100% vested 401(K) retirement plans
• Educational assistance up to $2500 per year

WellSky provides equal employment opportunities to all people without regard to race, color, national origin, ancestry, citizenship, age, religion, gender, sex, sexual orientation, gender identity, gender expression, marital status, pregnancy, physical or mental disability, protected medical condition, genetic information, military service, veteran status, or any other status or characteristic protected by law. WellSky is proud to be a drug-free workplace.

Applicants for U.S.-based positions with WellSky must be legally authorized to work in the United States. Verification of employment eligibility will be required at the time of hire. Certain client-facing positions may be required to comply with applicable requirements, such as immunizations and occupational health mandates.

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