Senior Cloud Software Engineer

The Josef Group; Chantilly (VA); On-site; USD 250,000 - 260,000; Full time

Job summary

The Josef Group is seeking a Senior Software Engineer to design, build, and operate scalable cloud-native systems for mission-critical programs. You will work onsite in Chantilly, VA with TS/SCI and Poly clearance requirements, delivering secure, resilient solutions.

The role focuses on Python services, AWS architectures, and IaC using Terraform, in a classified environment. Expect hands-on development, automation, and collaboration with a skilled team.

Qualifications

• Bachelor’s degree in Computer Science, Engineering, or a related technical field.
• Expert-level Python experience (core language for the role).
• Strong hands-on experience with AWS (Lambda, EC2, S3, DynamoDB, EventBridge, Step Functions, IAM, Organizations, CloudWatch).
• Strong Terraform experience managing production AWS infrastructure.
• Experience building and consuming HTTP REST APIs.
• Experience with containers and Docker.
• Familiarity with distributed systems, cloud networking, and security best practices.

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

Skills

Python

AWS

REST APIs

Linux

Education

Bachelor’s degree

Tools

Terraform

Docker

Job description

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

Bachelor’s 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

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)