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Security Engineer Iii Jobs (NOW HIRING)

Deloitte

Security Engineer III

Rosslyn, VA · Remote

Bachelor's degree in computer science, Cybersecurity, Information Technology, Engineering, or a degree in related technical field * 3+ years of experience in cybersecurity, security operations, or ...

Deloitte

Security Engineer III

Washington, DC · Remote

Bachelor's degree in computer science, Cybersecurity, Information Technology, Engineering, or a degree in related technical field * 3+ years of experience in cybersecurity, security operations, or ...

Deloitte

Security Engineer III

Baltimore, MD · Remote

Bachelor's degree in computer science, Cybersecurity, Information Technology, Engineering, or a degree in related technical field * 3+ years of experience in cybersecurity, security operations, or ...

Deloitte

Security Engineer III

Arlington, VA · On-site

Bachelor's degree in computer science, Cybersecurity, Information Technology, Engineering, or a degree in related technical field * 3+ years of experience in cybersecurity, security operations, or ...

Techworkers

Security-Engineer III

Durham, NC · On-site

... Methodologies, DevOps and CI/CD with relevant experience in all phases of the application ... Minimum Qualifications: - 7+ years information security experience. - College degree. - Any ...

Amazon

Security Engineer III - AMZ9081355

Seattle, WA · On-site

$179K - $226K/yr

Security Engineer III Job Location: Seattle, Washington Job Number: AMZ9081355 Position Responsibilities: Lead and architect organization-wide security initiatives, driving technical direction and ...

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How much do security engineer iii jobs pay per year?

As of Jun 7, 2026, the average yearly pay for security engineer iii in the United States is $152,773.00, according to ZipRecruiter salary data. Most workers in this role earn between $143,000.00 and $158,500.00 per year, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive in the Security Engineer Iii position, and why are they important?

To thrive as a Security Engineer III, you need advanced knowledge of cybersecurity principles, network architecture, threat modeling, and incident response, usually backed by a degree in computer science or related fields. Familiarity with security information and event management (SIEM) tools, vulnerability scanners, firewalls, and certifications such as CISSP or CEH are commonly required. Strong analytical thinking, effective communication, and the ability to work collaboratively across teams are crucial soft skills. These competencies ensure the protection of organizational assets against evolving threats, effective risk management, and seamless integration of security within business operations.

What are some typical daily responsibilities of a Security Engineer III?

As a Security Engineer III, your daily responsibilities often include monitoring and analyzing security alerts, conducting vulnerability assessments, and developing strategies to mitigate risks. You may work closely with IT teams to implement security controls, respond to incidents, and participate in security audits or compliance efforts. Additionally, you will likely mentor junior team members and collaborate with other departments to ensure best practices are integrated across the organization. This role offers a dynamic mix of hands-on technical work, problem-solving, and collaboration, creating opportunities for impactful contributions and professional growth.

What is a Security Engineer III job?

A Security Engineer III is a senior-level cybersecurity professional responsible for designing, implementing, and maintaining security systems to protect an organization's networks, data, and infrastructure. They assess vulnerabilities, develop security protocols, and respond to security incidents. This role often involves leading projects, mentoring junior engineers, and collaborating with IT and compliance teams. Strong expertise in risk assessment, threat mitigation, and security tools is essential.

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Security Engineer Iii jobs near you

Cybersecurity Security Engineer III

SOSi

Washington, DC • On-site

Full-time

Posted 3 days ago

Job description

Company Description

Founded in 1989, SOSi is among the largest private, founder-owned technology and services integrators in the defense and government services industry. We deliver tailored solutions, tested leadership, and trusted results to enable national security missions worldwide.

Job Description

*** This position is contingent upon contract award ***

Overview

SOSi is seeking a Cybersecurity Security Engineer III to support cybersecurity engineering activities in alignment with our customer. This role is responsible for supporting security architecture, engineering, technology integration, and modernization initiatives across enterprise cyber defense environments, including Zero Trust, cloud security, DevSecOps, and emerging technologies.
 

Responsibilities

  Support cybersecurity engineering and security architecture activities across enterprise environments

  Support design and integration of Zero Trust Architecture (ZTA) capabilities and security controls

  Develop and support technology roadmaps, engineering recommendations, market research, and proofs of concept

  Support engineering and integration of cloud security, secure authentication, and single sign-on (SSO) capabilities

  Support DevSecOps practices and secure technology integration activities

  Support security engineering activities involving vulnerability scanning tools, cyber defense technologies, and enterprise security platforms

  Support engineering and integration of AI/GenAI-related security capabilities

  Support post-quantum cryptography concepts, cryptographic inventory activities, and PQC-enabled protocols

  Support development and implementation of security CONOPS and engineering documentation

  Use scripting and automation to support engineering, integration, and security operations activities

Qualifications

  Experience:

  • Ten (10) or more years of cybersecurity engineering and/or project management experience
  • Two (2) or more years of leadership experience
  • Experience supporting cybersecurity design and integration
  • Experience supporting Zero Trust Architecture (ZTA)
  • Experience developing technology roadmaps, conducting market research, and supporting proofs of concept
  • Experience supporting security architecture and CONOPS
  • Experience supporting cloud security
  • Experience supporting AI/GenAI security integration
  • Experience supporting DevSecOps
  • Experience supporting vulnerability scanning tools
  • Experience supporting secure authentication and SSO
  • Experience supporting post-quantum cryptography concepts and PQC-enabled protocols
  • Experience with scripting and automation

  Education:

  • Bachelor's Degree in engineering, information systems, cybersecurity, or equivalent experience as defined by role requirements

  Certifications: 

At least one of:

  • Security+ 
  • CCNA 
  • SSCP 

And one of:

  • CISSP 
  • CISSP-ISSAP 
  • CISSP-ISSEP 
  • CCSP
  • GCIA
  • GDSA
  • GCCC
  • GCPN
  • GCIH
  • Clearance/Suitability: Secret (eligible)
Additional Information

Work Environment

  • Normal office conditions with potential to perform duties in deployed locations.
  • Core hours of operation are Monday through Friday, 0600 - 1700.
  • May be requested to work evenings and weekends to meet program and contract needs.

Working at SOSi

All interested individuals will receive consideration and will not be discriminated against for any reason.

Apply