Senior Security Architect - TS/SCI

Sunayu; Bethesda (MD); On-site; USD 170,000 - 230,000; Full time

Benefits offered by this job

Training and Educational Assistance

Paid Time Off (PTO)

Medical Plan Options

11 Federal holidays

401k plan with up to 6% match

Job summary

Sunayu, LLC is seeking a Cloud Cyber Security Engineer to secure and maintain compliant cloud platforms across multiple networks. You will apply RMF, collaborate with engineers and government counterparts, and design secure architectures for AWS, Azure, GCP, and OCI.

Strong emphasis on vulnerability management, SIEM, and container security. You will work with Kubernetes, security tooling, and rollout of security controls while ensuring performance and regulatory compliance.

Qualifications

• Active TS/SCI with polygraph and ability to obtain Privileged User Account per DoD policy.
• 12+ years of experience as ISSE or System Engineer on customer space programs.
• One IAT and one IAT Level II+ certification (e.g., CISSP, CCNA Security, CySA+).
• Hands-on vulnerability testing experience and RMF.
• Experience with common security tools: ACAS, Prisma Cloud, Splunk/Elastic.
• Knowledge of Kubernetes and container security architectures.

Responsibilities

• Validate security requirements and design for large-scale systems.
• Architect and integrate security solutions across multi-cloud environments (AWS, Azure, GCP, OCI).
• Collaborate with engineers, compliance, and government counterparts.
• Lead program planning, risk assessment, and security posture improvement.
• Tune controls to reduce false positives and maintain performance.
• Provide subject matter guidance on security architecture to programs and teams.
• Evaluate impact of new development on security posture and implement plans.

Skills

Security architecture

Cloud security

RMF

Kubernetes

Vulnerability testing

SIEM

ACAS

Prisma Cloud

Splunk/Elastic

Education

B.S. degree in Computer Science / Information Security / Systems Engineering

Tools

ACAS

Prisma Cloud

Splunk

Kubernetes

STIG Tools

Job description

Location: Bethesda, MD

Category: Cyber Security Architecture and Engineering
Travel Required:No
Remote Type: No
Clearance: TS/SCI

As a Cloud Cyber Security Engineer, you will be responsible for providing technical security expertise in securing, hardening, and maintaining compliance of cloud-based software platforms and infrastructure across multiple secure networks. You will lean on your experience with security technologies, industry best practices, vulnerability management, and risk management frameworks (RMF) to employ effective security solutions. In this role, you will collaborate closely with compliance personnel, software engineers, system engineers, system architects, and Government counterparts to perform the full spectrum of systems and cyber security engineering tasks to ensure system regulatory compliance and security posture.

Key Responsibilities include:

• Validating and verifying system security requirements and establishing system security designs for large-scale systems, major system elements, and interfacing systems that are part of a large complex network environment with geographically distributed components.
• Recommending and developing technical solutions, products, and standards based on current and desired system security architecture.
• Effectively collaborating with other internal technical experts on a day-to-day basis.
• Communicating with Program Managers and POCs from customer organizations when necessary, regarding Security issues of significant importance.
• Participating in Program Increment Planning and related agile team activities.
• Working closely with System Engineering, Test Engineering, and Integration teams to ensure that the hardware and software architecture and implementation meets security requirements.
• Evaluating the impact of new development on the operational security posture of the system.
• Serving as a subject matter expert in security architecture to include providing advice to Program Managers, Customer technical experts, and internal program teams.
• Continuously improve engineering processes, documentation standards, implementation playbooks, migration runbooks, technical standards, and execution models to accelerate delivery, reduce rework, improve operational handoff, and lower sustainment burden.
• Multi-Cloud Security Architecture: Design security architectures and solutions spanning AWS, Azure, GCP, and OCI, identifying common architectural patterns while accounting for CSP-specific capabilities and limitations.
  Security Platform Integration: Architect integrations between native security services and enterprise security platforms, including vulnerability management products, Stig evaluation, and SIEM.
• Containers & Kubernetes: Knowledge of Kubernetes and container security architectures, including image security, admission controls, secrets, identity, network policies, software supply chain security, security scanning, and runtime protection.
• Design, engineer, and implement enterprise network security architecture spanning next-generation firewalls, intrusion detection and prevention, web and TLS proxies, VPN and encryption services, network access control, DNS security, and east-west security controls.
• Evaluate the current network security architecture, identify gaps and improvement opportunities, estimate level of effort, assess implementation risk, and develop practical engineering plans to strengthen enterprise security capabilities.
• Provide specifications for network security architecture, evaluate and recommend emerging security technologies, and perform needs assessments to inform design and investment decisions.
• Tune and optimize security controls to reduce false positives, close coverage gaps, and improve detection and enforcement without degrading network performance or availability.

To be successful in this role you need these skills (required):

• Clearance: Active or current Top Secret/SCI and the ability to obtain Polygraph
• Bachelor of Science degree from an accredited university ideally in Computer Science, Information Assurance, Information Security System Engineering or related field with a minimum of 12 years of experience as an Information Systems Security Engineer (ISSE) or System Engineer on programs and/or contracts with the customer space.
• Certification: At least one IAT and one IAT Level II or higher certification e.g., CCNA Security, CySA+, Security+ CE, CISSP (or Associate) and the ability to obtain Privileged User Account (PUA)/elevated access per DoD policy.
• Must have a solid understanding of security practices and policies and hands‑on vulnerability testing experience using Customer tools.
• Must have experience applying Risk Management Framework.
• Must have demonstrated knowledge of and experience with common security tools, such as ACAS, Prisma Cloud, and Splunk/Elastic.
• Experience with SCAP or STIG based tools and specifications.
• Extensive experience designing enterprise security solutions and translating security requirements into implementable technical architectures.
• Knowledge of Kubernetes and container security architectures, including image security, admission controls, secrets, identity, network policies, software supply chain security, and runtime protection.
• Experience designing solutions involving SIEM, vulnerability management, identity security, network security, secrets management, container scanning, and data protection technologies.
• Monitor system security status, identify risks and vulnerabilities, and coordinate remediation efforts with system owners, engineers, and other stakeholders.
• Experience with data modeling and mapping system data flows for the purpose of cybersecurity analysis.
• Understanding of microservices architecture and service mesh.

You will wow us even more if you have these skills:

• Active TS/SCI with polygraph
• Experience with Commercial Cloud Services (C2S) and cloud-based enterprise services, preferably AWS
• Five (5) years of experience with Defense in Depth Principals/technology (including access control, authorization, identification and authentication, public key infrastructure, network and enterprise security architecture) and applying risk assessment methodology to system development.
• DoD 8570 compliance with IASAE Level 2 or 3.
• Experience installing, configuring, testing, deploying, operating, and maintaining enterprise network based scanning and reporting tools such as Trellix/ESS, ACAS, Evaluate STIG, SteelCloud ConfigOS, Prisma Cloud and STIG Manager.
• Extensive experience hardening modern operating systems, such as Oracle Linux and RHEL, as well as Microsoft Windows environments using Security Technical Implementation Guides (STIGs).
• Information Systems Security Engineering Professional (ISSEP) Certification.
• Computer Information Systems Security Professional (CISSP) Certification.
• Design and Architecture: Design, implement, and maintain Splunk environments including forwarders, indexers, search heads, and deployment servers.
• Hands‑on experience with two or more of the following technologies: Palo Alto Prisma Cloud, Splunk, Elastic, or Evaluate Stig.

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Who We Are

Sunayu, LLC serves as a premier technology partner to the Defense and Intelligence communities, delivering mission-critical engineering solutions across the nation. Our operations are anchored in a commitment to trust, accountability, and ethical transparency, ensuring the high-performance outcomes necessary to protect our country's most vital interests.

Culture

Our strength lies in our community:Our team prioritizes collaboration, professional growth, and encourages open communication. At Sunayu, we don't just secure the mission—we grow together.

Career Development

We support and encourage our team members to continue their professional growth by providing company-reimbursed training and continuing education of up to $5,000 per year. We also participate in many industry conferences and events where we share our expertise and experiences.

Pay Rate

Salary range considers factors such as (but not limited to) scope and responsibilities of the position, candidate's work experience, education/ training, key skills, as well as market and business considerations when extending an offer.

Benefits

• 3 Medical Plan Options
• Dental and Vision
• FSA, DCFSA, HSA
• Life/AD&D Insurance
• Short-Term & Long-Term Disability
• Employee Assistance Program (EAP)
• Training and Educational Assistance
• Paid Time Off (PTO)
• 11 Federal holidays
• 401k plan with up to a 6% match (100% immediate vesting)

Equal Opportunity Employer

Sunayu, LLC is an Equal Opportunity/Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, gender expression, national origin, age, protected veteran status, disability status, marital status, genetic information, medical condition, or any other characteristic protected by law.