Senior Software Engineer Chantilly, Virginia Clearance TS/SCI Full

Senior Software Engineer (Python / AWS / Terraform)

Location: Onsite Chantilly, VA

Clearance: TS/SCI and Poly Required

Compensation: $250,000$260,000 base salary

Overview

We are seeking a Senior Software Engineer to design, build, and operate highly scalable cloud-native systems supporting mission?critical national security programs. This role is ideal for an experienced engineer who thrives in hands?on development, infrastructure automation, and modern AWS?based architectures.

You will work onsite in Chantilly, VA alongside a highly technical team delivering secure, resilient, and high?performance solutions in a classified environment.

Key Responsibilities

Design, develop, and maintain production?grade Python services supporting backend systems and APIs

Architect and deploy AWS?based cloud solutions, leveraging serverless and managed services

Build and maintain Infrastructure as Code (IaC) using Terraform across multiple environments

Develop and integrate RESTful APIs and event?driven architectures

Implement cloud?native patterns for scalability, availability, observability, and fault tolerance

Collaborate with cross?functional engineering teams to deliver secure, reliable solutions

Support CI/CD pipelines and automate deployment workflows

Troubleshoot, optimize, and enhance system performance in Linux?based environments

Required Qualifications

Bachelors degree in Computer Science, Engineering, or a related technical field

Expert?level Python experience (this is the core language for the role)

Strong hands?on experience with AWS, including services such as:

Lambda, EC2, S3, DynamoDB

EventBridge, Step Functions

IAM, Organizations, CloudWatch

Strong Terraform experience managing complex, production AWS infrastructure

Experience building and consuming HTTP REST APIs

Strong Linux/UNIX experience

Experience with containers and Docker

Familiarity with distributed systems, cloud networking, and security best practices

Nice?to?Have Skills

Serverless architecture experience at scale

Experience working in classified or regulated environments

Exposure to global scaling, load balancing, and high?availability architectures

CI/CD tooling experience (e.g., Jenkins, GitLab CI, ArgoCD)

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