Security Engineer II, DCO Engineer (TS/SCI, Onsite)

Position Summary 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. Recruiting for this role ends on June 19th, 2026. Work You’ll Do Require a Defensive Cyber Operations (DCO) SME with a desire to actively defend the mission systems critical to our national defense. As an engineer the candidate will lead individuals towards common goals and work with engineers to apply extensive expertise on multiple complex work assignments. Assignments may be broad in nature, requiring originality and innovation in determining how to accomplish tasks. Leads the development of DCO methodologies and presents solutions to problems. Contributes to deliverables and performance metrics where applicable. Consults on IT and cyber defensive architecture and technologies. Assesses assigned cyber key terrain to thoroughly understand the mission, architecture and associated threat. Advises on technical design and implementation of DCO capabilities required to effectively protect, detect and respond to cyber threats and attacks. Researches cyber defense technologies for best fit based on mission, architecture and current threat. Leads the design, implementation, configuration and/or tuning of cyber defensive technology. Authors documentation to include SOPs, checklists, implementation guides, architecture diagrams, crew binders, etc. to support DCO. Adapts technologies to meet the mission architecture and threat.A successful candidate would possess these skills:Ability to work independently and collaborate as part of a teamEffective written and verbal communication skillsMeticulous attention to detail and quality of work productAbility to build and sustain professional relationshipsAbility to lead projects or workstreamsAbility to manage and prioritize multiple tasks in a fast-paced and dynamic environmentStrong interpersonal skills and professional demeanorAbility to meet deadlinesAbility 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 Enterprise Security offering embeds security in all aspects of digital transformation by securing a client’s technical backbone while enabling secure digital transformation. Includes security architecture, secure development and deployment, end-to-end cyber cloud capabilities, application security, and security for emerging technologies and connected products. 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.Must be legally authorized to work in the United States without the need for employer sponsorship, now or at any time in the future.Active TS/SCI clearance.Ability to work onsite in Aurora, CO.5 years of technical experience in cyber-defense or cyber security related fields (e.g., engineering, networking, systems integration, solutions etc.).Experience years must come from at least 2 of the following areas:Container or virtual environments (e.g. Docker, Kubernetes, VMware, AWS) In-band and out-of-band test access points for network traffic collection and aggregation (e.g. Gigamon)Data storage solutions (e.g. NFS storage, distributed storage, Ceph Ruck storage, etc.) -Data-analysis toolsets (e.g. Elastic Search, Logstash, Kibana, Splunk, etc.)Agile frameworks for software development, -Linux operating systems (Red Hat, Kali, etc.)Windows operating systemsNetwork infrastructureSecurity applications (Security Orchestration, Automation, and Response [SOAR], Security Information and Events Management [SIEM], Intrusion Detection Systems [IDS], etc.) The wage range for this role takes into account the wide range of factors that are considered in making compensation decisions including but not limited to skill sets; experience and training; licensure and certifications; and other business and organizational needs. The disclosed range estimate has not been adjusted for the applicable geographic differential associated with the location at which the position may be filled. At Deloitte, it is not typical for an individual to be hired at or near the top of the range for their role and compensation decisions are dependent on the facts and circumstances of each case. A reasonable estimate of the current range is $88,600 to $147,600.You may also be eligible to participate in a discretionary annual incentive program, subject to the rules governing the program, whereby an award, if any, depends on various factors, including, without limitation, individual and organizational performance. Deloitte is committed to providing reasonable accommodations for people with disabilities. If you require a reasonable accommodation to participate in the recruiting process, please direct your inquiries to the Global Call Center (GCC) at View email address on click.appcast.io. Recruiting tips From developing a stand out resume to putting your best foot forward in the interview, we want you to feel prepared and confident as you explore opportunities at Deloitte. Check out recruiting tips from Deloitte recruiters. BenefitsAt Deloitte, we know that great people make a great organization. We value our people and offer employees a broad range of benefits. Learn more about what working at Deloitte can mean for you. Our people and culture Our inclusive culture empowers our people to be who they are, contribute their unique perspectives, and make a difference individually and collectively. It enables us to leverage different ways of thinking, ideas, and perspectives, and bring more creativity and innovation to help solve our clients' most complex challenges. This makes Deloitte one of the most rewarding places to work. Our purpose Deloitte’s purpose is to make an impact that matters for our people, clients, and communities. At Deloitte, purpose is synonymous with how we work every day. It defines who we are. Our purpose comes through in our work with clients that enables impact and value in their organizations, as well as through our own investments, commitments, and actions across areas that help drive positive outcomes for our communities. Learn more. Professional development From entry-level employees to senior leaders, we believe there’s always room to learn. We offer opportunities to build new skills, take on leadership opportunities and connect and grow through mentorship. From on-the-job learning experiences to formal development programs, our professionals have a variety of opportunities to continue to grow throughout their career. As used in this posting, "Deloitte" means Deloitte Transactions and Business Analytics LLP, a subsidiary of Deloitte LLP. Please see for a detailed description of the legal structure of Deloitte LLP and its subsidiaries. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability or protected veteran status, or any other legally protected basis, in accordance with applicable law. Requisition code: 352130 Job ID 352130 Engineering and Product | Security Engineering