Security Engineer III (Pen Tester)

Our Deloitte Cyber team understands the unique challenges and opportunities businesses face in cybersecurity. Join our team to deliver powerful solutions to help our clients navigate the ever-changing threat landscape. Through powerful solutions and managed services that simplify complexity, we enable our clients to operate with resilience, grow with confidence, and proactively manage to secure success.

Work You’ll Do

• Engagement scoping & planning: Partner with stakeholders to define objectives, rules of engagement, in-scope assets, testing windows, and success criteria; ensure testing is authorized and safely executed.
• Reconnaissance & enumeration: Perform passive and active discovery of attack surface, services, endpoints, APIs, and misconfigurations; map trust boundaries and data flows.
• Manual application testing: Conduct deep testing of web apps, mobile apps (as applicable), and application programming interfaces (APIs), aligned to OWASP Top 10 and common design/implementation flaws.
• Vulnerability validation & exploitation: Safely verify findings and demonstrate impact (where permitted), including:
• Cross-site scripting (XSS)
• SQL injection (SQLi)
• Cross-site request forgery (CSRF)
• Server-side request forgery (SSRF)
• Authentication and authorization flaws (e.g., broken access control, privilege escalation)
• Session management issues, insecure deserialization, security misconfiguration, and business logic vulnerabilities
• Network and infrastructure testing: Identify and validate weaknesses such as exposed services, weak segmentation, insecure protocols, credential issues, and misconfigurations across on-prem and cloud assets.
• Post-exploitation analysis (when in scope): Assess blast radius, lateral movement paths, sensitive data exposure, and persistence risks; collect evidence responsibly and minimize operational impact.
• Reporting & remediation support: Deliver clear reports including reproduction steps, risk ratings, evidence, and prioritized fixes; communicate effectively with both engineers and non-technical stakeholders; retest fixes as needed.

A successful candidate would possess these skills:

• Ability to work independently and collaborate as part of a team
• Effective written and verbal communication skills
• Meticulous attention to detail and quality of work product
• Ability to build and sustain professional relationships
• Ability to lead projects or workstreams
• Ability to manage and prioritize multiple tasks in a fast-paced and dynamic environment
• Strong interpersonal skills and professional demeanor
• Ability to meet deadlines
• Ability to provide clear guidance to others

The Team

Deloitte’s Government & Public Services (GPS) practice – our people, ideas, technology and outcomes – is designed for impact. Serving federal, state, & local government clients as well as public higher education institutions, our team of professionals brings fresh perspective to help clients anticipate disruption, reimagine the possible, and fulfill their mission promise.

Our Cyber Defense & Resilience offering assists clients in defending against advanced threats by transforming security operations, monitoring technology, data analytics, and threat intelligence. Helps manage and protect dynamic attack surfaces and provides rapid crisis and cyber incident response, ensuring clients can be ready for, respond to, and recover from business disruptions.

The Project Delivery Talent Model is designed for professionals with specialized skills that align to a current client need. Team members focus on delivering services to clients, without additional expectations related to business development or promotion. Their employment is tied to their role on a project, and they are eligible for a benefits package that is competitive for project delivery-focused professionals.

Qualifications

Required: 

• Bachelor’s degree required.
• Must be legally authorized to work in the United States without the need for employer sponsorship, now or at any time in the future.
• Must be able to obtain and maintain the required cl