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Software Engineer (Sr.) - Python Job Opening In Springfield Virginia – Now Hiring Quadrant, Inc.

Software Engineer (Sr.) Python

Job description

Principal Software Engineer - Python

Springfield, VA

Pay From: $165,000 per year

MUST:

Experienced Principal Software Engineer

Active Top Secret clearance with ability to obtain SCI

15+ years of experience as a Software Engineer or a related area that demonstrates the ability to perform the duties associated with this work successfully

Strong full-stack Python development experience

Experience building and maintaining APIs (ex.

FastAPI)

Experience with high performance applications in React.js

Experience in PostgreSQL database design

Experience with Kubernetes and DevOps practices to support rapid deployment and sustainment

Proven ability to work with pre-existing code bases, understand them quickly, and adapt functionality for new use cases

Experience with web services architecture, design, and development

Background working in secure cloud environments (e.g., AWS GovCloud, C2S)

Understanding of geospatial systems, including imagery acquisition, geometry, and related workflows

Familiarity with geospatial data tools and libraries (e.g., PostGIS, ArcGIS, GDAL)

Prior exposure to DoD/IC mission applications

BS or Masters equivalent in Computer Science, Engineering, Mathematics, Information Systems, or equivalent technical degree

DUTIES:

Design, build, deploy, and maintain full-stack web applications, primarily in Python, with supporting JavaScript/TypeScript front-end components

Architect, implement, and manage containerized environments using Docker and Kubernetes, ensuring scalability, resilience, and high availability

Define, build, and continually improve CI/CD pipelines (for build, test, deployment) to accelerate delivery while maintaining quality and security.

Implement Infrastructure as Code (IaC) using Terraform, CloudFormation, or similar tools to provision, configure, and manage cloud infrastructure

Integrate automated security scans, vulnerability assessments, static/dynamic code analysis, and compliance checks as part of the development pipeline

Monitor infrastructure, applications, and services to ensure high performance, availability, and reliability.

Use logging, metrics, alerting tools (e.g. Prometheus, Grafana, ELK/EFK, CloudWatch)

Establish and maintain best practices for system configuration, version control, access control, and environment consistency (dev, test, staging, production)

Collaborate cross-functionally with software engineers, security engineers, QA, and operations to ensure secure, efficient, and reliable software delivery

Troubleshoot and resolve production issues (application, infrastructure, deployment, network) in a timely and systematic manner

Ensure compliance with security policies, industry standards, and regulatory requirements (e.g. RMF, NIST 800-53, STIGs) as applicable

Participate in design and architecture reviews to ensure all systems are built with security, performance, and maintainability in mind

Provide technical guidance, mentor junior engineers, and document processes, runbooks, and architecture decisions

Engage with non-technical stakeholders (program managers, clients) to communicate status, risks, and tradeoffs

Stay abreast of emerging trends, tools, and best practices in DevSecOps, cloud, container orchestration, and cyber/security

Quadrant is an affirmative action/equal opportunity employer.

All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, status as a protected veteran, or status as an individual with a disability.

“Healthcare benefits are offered to all eligible employees according to compliance mandated by the Affordable Care Act“.

Required Skill Profession

Other General