Senior Platform Engineer: AWS Networking & FedRAMP Security

Smarsh; Atlanta (GA); On-site; USD 150,000 - 190,000; Full time

Benefits offered by this job

Medical insurance

Dental insurance

Vision insurance

Stock options

Flexible time-off

401(k) match

Sabbatical program

Employee recognition program

Job summary

Smarsh is seeking a Senior Platform Engineer (IC4) in Atlanta to design, automate, and operate secure, scalable network infrastructure across multiple AWS environments with FedRAMP compliance focus.

You will partner with Platform, Security, and CI/CD teams to deliver auditable, highly available cloud networking solutions and mentor junior engineers while maintaining runbooks and SOPs.

Qualifications

• Bachelor’s or Master’s degree in Computer Science, Engineering, or related field (or equivalent experience).
• 8+ years of experience in cloud or platform engineering, with a strong focus on AWS networking.
• Knowledge of supporting FedRAMP‑compliant environments, including familiarity with compliance controls, audit processes, and security documentation.
• Advanced understanding of AWS networking services (VPCs, subnets, routing, Transit Gateway, Route 53, Direct Connect, VPNs).
• Extensive experience with Terraform and Infrastructure as Code.
• Proven experience orchestrating and automating infrastructure provisioning across multiple environments (dev, staging, production).
• Experience integrating infrastructure provisioning into CI/CD pipelines.
• Proficiency in Python, Go, or Java.
• Strong Linux and networking fundamentals.
• Excellent system design, troubleshooting, and problem‑solving skills.

Responsibilities

• Design and implement secure, scalable AWS network architectures.
• Architect hybrid cloud connectivity solutions between on‑premises and AWS.
• Design high‑availability and disaster recovery network architectures.
• Define multi‑tenant isolation, routing boundaries, and segmentation strategies.
• Create and maintain network and architecture diagrams.
• Develop and maintain Terraform‑based infrastructure for AWS networking resources.
• Orchestrate and automate end‑to‑end infrastructure provisioning across multiple environments.
• Design and maintain reusable, environment‑aware Terraform modules.
• Implement promotion workflows for infrastructure changes across environments.
• Ensure consistency, traceability, and auditability of infrastructure changes.
• Identify and remediate configuration drift across environments.
• Support network designs aligned with FedRAMP and NIST 800‑53 requirements.
• Implement and review network security controls including NACLs and Security Groups.
• Partner with Security and GRC teams to support audits and compliance activities.
• Assist in investigating and resolving security incidents involving network systems.
• Maintain documentation required for regulated environments.
• Optimize AWS network performance, resiliency, and availability.
• Design and implement network monitoring and alerting using DataDog, Prometheus, and AWS‑native tools.
• Participate in troubleshooting and root cause analysis of complex network issues.
• Participate in on‑call rotation and operational support.
• Act as a networking subject matter expert across Platform and Infrastructure teams.
• Contribute to architecture reviews, standards, and best practices.
• Mentor junior engineers and provide technical guidance.
• Maintain runbooks, SOPs, and operational documentation.

Skills

AWS networking

Terraform

CI/CD pipelines

Programming (Python/Go/Java)

Linux networking

FedRAMP familiarity

Education

Bachelor’s or Master’s degree in Computer Science/Engineering

Tools

Terraform

Job description

Smarsh is seeking a Senior Platform Engineer (IC4) in Atlanta to design, automate, and operate secure, scalable network infrastructure across multiple AWS environments with FedRAMP compliance focus.

You will partner with Platform, Security, and CI/CD teams to deliver auditable, highly available cloud networking solutions and mentor junior engineers while maintaining runbooks and SOPs.