Software Engineer (JavaScript/Python/Nifi)
Keylogic
Dulles, VA · Posted October 9, 2026
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November 2026
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- Best cities for software and engineering jobs #1 San Francisco (3,412 openings)
- Best cities for engineering pay after cost of living #1 San Mateo ($216k)
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About the job
Position: Software Engineer/Application Developer
Location: Dulles, VA - ONSITE
Salary: $87k-114k + comprehensive benefits package
Clearance: Active DOD Secret Clearance
KeyLogic is supporting a U.S. Government customer to provide support for onsite incident response to civilian Government agencies and critical asset owners who experience cyber-attacks, providing immediate investigation and resolution. Contract personnel perform investigations to characterize the severity of breaches, develop mitigation plans, and assist with the restoration of services. KeyLogic is seeking an Applications Developer to support this critical customer mission.
Responsibilities: • Designing, troubleshooting, and implementing software code for end-to-end software development • Designs, develops, enhances, debugs, integrates, and implements software • Troubleshoots production problems related to software applications • Researches, tests, builds, and coordinates the integration of new products based on user requirements • Initiates action for evaluation and recommendation of application software packages, application integration and testing tools • Resolves problems with software and responds to suggestions for improvements and enhancements • Design, develop, integrate, and interface with web application RESTful APIs • Implements recommendations for improving documentation and development process standards • Ensures quality control of all developed and modified prototype software • Design, develop, integrate, and interface with web application RESTful APIs
Required Skills: • U.S. Citizenship • Must have an active Secret clearance; TS/SCI is preferred • Must be able to obtain DHS Suitability • 2+ years of directly relevant experience in applications development • Knowledge of secure software development lifecycle and code versioning and maintenance • Experience with assessing and integrating commercial off the shelf (COTS) products • Knowledge and familiarity to work with the installation, demonstration, test, validation and evaluation of new and existing software, tools, methods, and software measurement technologies • Operational experience with Python • Experience working with AWS resources such as S3, SQS, Lambda, Glue, and Route 53 • Knowledge of software application development and RESTful architecture • Knowledge of data transformation and manipulation via code • Experience working and developing in/with containerization software including Kubernetes and Docker • Must have strong communication skills and have experience interacting with customers directly in a project environment or technical demonstration • Must be able to work collaboratively across remote and physical locations
Desired Skills: • Experience with two or more of the following: JSON, Data Analytics, MongoDB, Elastic Search, Databricks, Postgress, Ansible, Vue.js, React, HTML, Podman, Process Automation, UI Development, CI/CD knowledge • Familiarity with data transformation (ETL)
Required Education: BS Computer Science, Computer Engineering, Computer Information Systems, Computer Systems Engineering or related degree; or HS Diploma & 4-6 years of directly relevant experience.
Desired Certifications: • CSSLP • Sec+