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Added 21 hours ago
Cyber Software Engineer
Cornerstone Defense
United States
Added 21 hours ago
Senior Information Systems Security Engineer
Cornerstone Defense
United States
Added 5 days ago
Systems Administrator- Linux / Social Media Services Administrator
Cornerstone Defense
Columbia
Added 6 days ago
Systems Administrator
Cornerstone Defense
Dahlgren, VA
Added 6 days ago
Lead Network Engineer
Cornerstone Defense
Herndon, VA
Added 11 days ago
Senior Solution Train Engineer
Cornerstone Defense
Columbia, MD
Added 11 days ago
Help Desk Technician
Cornerstone Defense
Springfield, VA
Added 11 days ago
Senior Information System Security Manager
Cornerstone Defense
Odenton, MD
Added 11 days ago
Senior Cyber Systems Engineer
Cornerstone Defense
Linthicum Heights, MD
Added 11 days ago
ELM Technical Manager
Cornerstone Defense
Annapolis Jct, MD
Added 11 days ago
Expert Application Developer
Cornerstone Defense
Hanover, MD
Added 11 days ago
Senior Technical Operations Advisor
Cornerstone Defense
Arlington, VA
Added 11 days ago
Security Cooperation Analyst
Cornerstone Defense
Arlington, VA
Added 11 days ago
Senior Offensive Cyber Analyst
Cornerstone Defense
Arlington, VA
Added 11 days ago
Defensive Cyber Analyst
Cornerstone Defense
Arlington, VA
Added 11 days ago
Senior Readiness Data Analyst
Cornerstone Defense
Arlington, VA
Added 11 days ago
Senior Storage Administrator/Engineer
Cornerstone Defense
Annapolis Jct, MD
Added 11 days ago
Teamcenter SME
Cornerstone Defense
Poway, CA
Added 11 days ago
Cyber Systems Engineer
Cornerstone Defense
United States
Added 11 days ago
Program Manager
Cornerstone Defense
United States
Added 11 days ago
Systems Administrator
Cornerstone Defense
United States
Added 11 days ago
Network Engineer
Cornerstone Defense
United States
Added 11 days ago
Senior NOC Technician
Cornerstone Defense
Ford Island, HI
Added 11 days ago
Network Engineer II
Cornerstone Defense
Ford Island, HI
Added 11 days ago
Program Lead/Systems Engineer
Cornerstone Defense
Ft. Meade, MD

Cornerstone Defense

Web Developer - SWE1

Columbia, MD, United States

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Job details

Apply by: May 5, 2027
Posting language: English
Posted: May 5, 2026

Original job description

Title: Web Developer

Location: Annapolis Junction, Maryland

Clearance: TS/SCI w/ Polygraph

Pay Range: 190 - 210K

Company Overview:

Cornerstone Defense, in partnership with our military, intelligence, and civil government customers, supports U.S. operations worldwide through the use of satellite, launch, and cyber technologies. Cornerstone’s Cyber Sector develops and supports solutions for computer network operations, including exploitation, defense, signals intelligence, and information technology missions. Supported organizations include the National Security Agency, the Defense Information Systems Agency (DISA), Aberdeen Proving Ground, the Federal Bureau of Investigation, and several commercial entities.

You will contribute as a core engineer on a small team delivering enterprise web services deployed in AWS. This mid-level role expects you to take ownership of features end-to-end, contribute to design decisions, and improve reliability and maintainability across multiple applications.

Responsibilities:

Design and implement features across the stack (API, UI, and data layer) with limited supervision; write clear technical approaches when needed.
Own services in production, deploy, monitor, troubleshoot incidents, and drive root-cause fixes to improve reliability.
Contribute to system architecture and technical direction (tradeoffs, scalability, security), and participate actively in code reviews.
Collaborate with stakeholders to refine requirements, estimate work, and deliver iteratively in an Agile environment.

Required skills:

Professional work experience with one or more of the following:

PHP
.Net C#
Java
Node.js
Python
HTML
CSS
JavaScript
Vue.js
React
Experience deploying and operating software on Linux (service configuration, logs, basic networking, automation).
Solid understanding of APIs, authentication/authorization basics, and secure coding practices.
Working knowledge of relational databases and performance basics (indexes, query tuning at a practical level).

Desired skills:

Hands-on AWS experience (IAM, EC2, ALB, S3, RDS, CloudWatch) and/or Azure equivalents.
Experience with Nginx/Apache/Tomcat configuration and performance tuning.
Scripting/automation with PowerShell and/or Python; familiarity with CI/CD pipelines.
Experience supporting production services and participating in on-call/incident response.

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More about this job

Skills

PHP
.NET
C#
Oracle Java
Node.js
Python
HTML
CSS
JavaScript
Vue.js
React
Linux
AWS
Identity and access management
Microsoft Azure
Apache Tomcat
Microsoft PowerShell
CI/CD
Incident response

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