Senior Software Developer (TS/SCI) - Python, ETL & Data

Cornerstone Defense LLC; Herndon (VA); On-site; USD 200,000 - 240,000; Full time

Benefits offered by this job

Medical, Dental and Vision Plans

401(k)

HSA and FSA options

Life and Disability Insurance

Tuition Reimbursement and Training

Referral Program

Job summary

Cornerstone Defense in Herndon, VA is seeking a Software Developer to translate requirements into concrete software solutions. You will design components, mentor teammates, and participate in end-to-end SDLC, including CI/CD integration, in an on-site role requiring Active TS/SCI w/ Polygraph.

Ideal candidates will have 3+ years of Python experience, strong ETL and SQL skills, and demonstrated SDLC expertise to debug, test, and deploy across environments.

Qualifications

• Recent experience developing in Python (3+ years).
• Experience with ETL processes and SQL databases.

Responsibilities

• Understand requirements and translate them into implementable solutions.
• Design and develop software components potentially interfacing with other teams.
• Coach junior developers on best practices and code efficiency.
• Participate in code and design reviews.
• Research data sources and solutions to extract, transform, and load data for processing and analysis.
• Follow development processes and standards; contribute to CI/CD improvements.
• Ability to think strategically and present solutions to the team.

Skills

Python

ETL

SQL

Job description

Cornerstone Defense in Herndon, VA is seeking a Software Developer to translate requirements into concrete software solutions. You will design components, mentor teammates, and participate in end-to-end SDLC, including CI/CD integration, in an on-site role requiring Active TS/SCI w/ Polygraph.

Ideal candidates will have 3+ years of Python experience, strong ETL and SQL skills, and demonstrated SDLC expertise to debug, test, and deploy across environments.