IT Application Solutions Architect Senior

Lumen Solutions Group Inc. • Washington, DC

1d

About The Position

Lumen Solutions Group Inc. is seeking a senior IT Applications Solution Architect / Senior Cloud Security Engineer to design, implement, and oversee secure AWS cloud infrastructure and applications. The role requires broad IT knowledge across architecture, infrastructure, operating systems, databases, applications, networking, and cloud implementations, along with substantial hands-on cloud experience.

The position is responsible for developing secure cloud architectures and standards, maintaining AWS landing zones and multi-account environments, strengthening identity and network security, and leading threat modeling and security reviews. It also supports automation, vulnerability and cloud posture management, regulatory compliance, and DevSecOps initiatives in partnership with development, infrastructure, and security operations teams. The role includes providing technical guidance to junior cloud security engineers.

The contractor must provide their own equipment, such as a laptop and monitor. Lumen’s client will provide access to a virtual desktop setup for required systems and technology. Lumen Solutions Group Inc. is an Equal Opportunity Employer and does not discriminate on the basis of minority status, gender, disability, religion, LGBTQI status, age, or veteran status.

Requirements

• At least 7 years of IT experience, with broad knowledge of architecture, infrastructure setup and management, operating systems, databases, applications, networking, and cloud implementations.
• At least 5 years of strong hands-on experience in cloud infrastructure and applications.
• Strong understanding of cloud infrastructure components, including servers, storage, networks, security, data, and applications, to deliver end-to-end AWS cloud infrastructure solutions.
• Deep expertise in AWS security services, such as IAM, Control Tower, Security Hub, GuardDuty, Config, CloudTrail, KMS, and Secrets Manager.
• Strong understanding of Zero Trust and cloud security architecture principles.
• Experience designing secure multi-account AWS environments.
• Expertise in cloud networking and security architecture.
• Strong scripting and automation skills using Python, PowerShell, or Bash.
• Experience with Infrastructure as Code.
• Ability to take ownership of issues and resolve them within service levels using sound judgment.
• Ability to work independently and collaboratively in an integrated team environment; must be self-motivated.
• Strong communication and interpersonal skills.
• Must provide own work equipment, such as a laptop and monitor.

Nice To Haves

• Knowledge of container and Kubernetes security, including ECS and EKS.
• Experience integrating AWS/Azure security controls with SIEM platforms such as Microsoft Sentinel.

Responsibilities

• Design and implement secure cloud architectures aligned with security best practices.
• Define cloud security standards, governance frameworks, and security guardrails.
• Lead security architecture reviews for cloud infrastructure and applications.
• Develop and maintain AWS landing zones, multi-account strategies, and security baselines.
• Architect identity and access management solutions using AWS IAM, IAM Identity Center, and least-privilege principles.
• Design and implement network security controls, including VPC architecture, segmentation, private connectivity, WAF, and security groups.
• Lead cloud threat modeling, risk assessments, and security reviews.
• Drive cloud security automation using Infrastructure as Code, including Terraform and CloudFormation.
• Oversee vulnerability management, cloud posture management, and remediation efforts.
• Mentor junior cloud security engineers and provide technical guidance.
• Support regulatory compliance initiatives, including NIST, CIS, ISO 27001, SOC 2, PCI, and HIPAA as applicable.
• Partner with development, infrastructure, and security operations teams to implement DevSecOps controls.
• Take ownership of issues and use sound judgment and urgency to resolve them within service levels.
• Work independently and collaboratively in an integrated team environment.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Education Level: No Education Listed