Jobs in the United States

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Added 1 day ago
Software Developer (Backend) Senior
Bigbear.ai
Washington
TS/SCI clearance with a current CI polygraph (required).
Added 3 days ago
A
DevOps Engineer
AnaVation
Chantilly, VA
- $92,905.44 to $218,324.12 USD / year
This position requires an active Top Secret (TS) clearance and the ability to obtain SCI access with a CI polygraph. This position is on-site in Chantilly, VA.
Added 3 days ago
A
AI Engineer SME
AnaVation
Chantilly, VA
- $95,352.72 to $212,566.06 USD / year
This position requires an active Top Secret (TS) clearance and the ability to obtain SCI access with a CI polygraph. This position is on-site in Chantilly, VA.
Added 3 days ago
Cyber Exploiter/Vulnerability Assessment Engineer (TS/SCI with Poly Required)
GCI
Chantilly, VA
…building and maintaining trusted and reliable partnerships with our customers and…
Added 4 days ago
Senior Software Engineer, Admin Services Lead
Parsons Government Services Inc.
VA
In a world of possibilities, pursue one with endless opportunities. Imagine Next!
Added 4 days ago
Senior Application Developer (Full Stack)
Belay Technologies
Fort Meade, MD
Belay Technologies is seeking a Senior Application Developer to join our intel team. You will operate as a Full Stack Software Engineer on the Enduring Targets, Global Technology section's…
Added 4 days ago
Software Development Engineer, US ADC Security
Amazon.com Services LLC
Herndon, VA
This position requires that the candidate selected be a US Citizen and obtain and maintain an active TS/SCI security clearance with polygraph.
Added 4 days ago
Software Development Engineer, US ADC Security
Amazon.com Services LLC
Herndon, VA
This position requires that the candidate selected be a US Citizen and obtain and maintain an active TS/SCI security clearance with polygraph.
Added 7 days ago
Systems Development Engineer II, US Amazon Dedicated Cloud Security Engineering
Amazon Web Services, Inc.
Herndon, VA
This position requires that the candidate selected be a US Citizen and must currently possess and maintain an active TS/SCI security clearance with polygraph.
Added 9 days ago
Software Engineer (Full Stack Focus)
Visionist, Inc.
Fort Meade, MD
Active Top Secret (TS/SCI) clearance with polygraph is required.
Added 11 days ago
Senior Software Engineer
Belay Technologies
Fort Meade, MD
…capabilities under compressed timelines. You will collaborate closely with cross-functional teammates, analysts, and security researchers operating within the offensive cyber space to…
Added 14 days ago
Application Engineer (Backend)
CACI International
Linthicum Heights, MD
Minimum Clearance Required to Start: TS/SCI with Polygraph
Added 14 days ago
Software Engineer-TS/SCI with Poly
CACI International
Linthicum Heights, MD
Minimum Clearance Required to Start: TS/SCI with Polygraph
Added 14 days ago
Software Development Engineer, US Amazon Dedicated Cloud Security
Amazon Web Services, Inc.
Herndon, VA
This position requires that the candidate selected be a US Citizen and must currently possess an active TS/SCI security. The position further requires that, after start, the selected…
Added 14 days ago
Intelligence Support Engineer
MANTECH
Annapolis Junction, MD
Unlock the secrets of intelligence with MANTECH! Join a dynamic team at the forefront of national security, providing advanced solutions to government intelligence agencies. Since 1968,…
Added 14 days ago
Senior DevOps Engineer
MANTECH
Annapolis Junction, MD
Unlock the secrets of intelligence with MANTECH! Join a dynamic team at the forefront of national security, providing advanced solutions to government intelligence agencies. Since 1968,…
Added 14 days ago
Senior Database Developer (Web Technologies & Data Migration)
Cornerstone Defense
Annapolis Jct, MD
Clearance: *Active TS/SCI w/ Polygraph needed to apply *
Added 15 days ago
Application Engineer 4 (API)
Power3 Solutions
Linthicum Heights, MD
The developer will provide middleware and backend support to all system applications.
Added 15 days ago
Application Engineer 4 (API)
Themis Insight
Linthicum Heights, MD
The developer will provide middleware and backend support to all system applications.
Added 15 days ago
Application Engineer 4 (API)
FLASH Technology Group
Linthicum Heights, MD
The developer will provide middleware and backend support to all system applications.
Added 15 days ago
Principal Software Developer (Java, JavaScript, Docker)
Power3 Solutions
Fort Meade, MD
We are hiring a Principal Software Developer (Java, JavaScript, Docker) to work in the Ft. Meade, MD vicinity. Position location is subject to change based on central MD client's needs.
Added 15 days ago
Cyber Security Engineer 4
Base-2 Solutions, LLC
Bethesda, MD, MD
Active TS/SCI with ability to obtain a CI Polygraph.
Added 15 days ago
Cyber Security Engineer 3
Base-2 Solutions, LLC
Bethesda, MD, MD
Active TS/SCI with ability to obtain a CI Polygraph.
Added 15 days ago
Cyber Security Engineer 2
Base-2 Solutions, LLC
Bethesda, MD, MD
Active TS/SCI with ability to obtain a CI Polygraph.
Added 16 days ago
SME Systems Engineer
The Swift Group
United States
US citizenship with an active TS/SCI with Polygraph clearance

CACI International

Application Engineer (Backend)

Linthicum Heights, MD, United States

$103,800 - $218,100 · Full-time

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Job details

Pay: $103,800 - $218,100
Job type: Full-time
Posting language: English
Posted: Apr 22, 2026

Original job description

Job Title: Application Engineer (Backend)

Job Category: Information Technology

Time Type: Full time

Minimum Clearance Required to Start: TS/SCI with Polygraph

Employee Type: Regular

Percentage of Travel Required: None

Type of Travel: None

The Opportunity

Join our innovative team as an Application Engineer (Backend) and be a key player in transforming our system security evaluation and authorization process. We are shifting from a manual approach to a cutting-edge model that leverages automation, streamlined processes, continuous monitoring, and comprehensive network data gathering. This is your chance to make a significant impact on our enterprise security and contribute to a dynamic, forward-thinking environment.

Responsibilities

Develop, test, deploy, and maintain various Python-based REST endpoints, microservices, and data model management capabilities using Django and Flask frameworks.
Interact with data models stored in MariaDB or MongoDB and deliver data in JSON format to UI front ends upon request.
Provide middleware and backend support for all system applications.
Collaborate with cross-functional teams to ensure seamless integration and optimal performance of backend services.

Required Qualifications

Active TS/SCI w/ Polygraph
Education and Experience
High School Diploma/GED: Minimum of 12 years of technical experience
Associate’s Degree: Minimum of 10 years of technical experience
Bachelor’s Degree: Minimum of 8 years of technical experience
Master’s Degree: Minimum of 6 years of technical experience
Doctorate’s Degree: Minimum of 4 years of technical experience
All degrees and diplomas must be from accredited institutions, and experience must be directly related to the technical labor category.
Proficiency in Python
Experience with Docker
Expertise in Django or Flask
Database experience with MongoDB or MariaDB
REST endpoint development skills
Understanding of the microservice model

Desired Qualifications

Experience with AWS or other cloud platforms
Knowledge of JSON and/or XML serialization
Familiarity with Jira and Confluence
Proficiency in Git version control
Experience working in an Agile environment

What You Can Expect:

A culture of integrity.

At CACI, we place character and innovation at the center of everything we do. As a valued team member, you’ll be part of a high-performing group dedicated to our customer’s missions and driven by a higher purpose – to ensure the safety of our nation.

An environment of trust.

CACI values the unique contributions that every employee brings to our company and our customers - every day. You’ll have the autonomy to take the time you need through a unique flexible time off benefit and have access to robust learning resources to make your ambitions a reality.

A focus on continuous growth.

Together, we will advance our nation's most critical missions, build on our lengthy track record of business success, and find opportunities to break new ground - in your career and in our legacy.

Pay Range :

There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications. Our employees value the flexibility at CACI that allows them to balance quality work and their personal lives. We offer competitive compensation, benefits and learning and development opportunities. Our broad and competitive mix of benefits options is designed to support and protect employees and their families. At CACI, you will receive comprehensive benefits such as; healthcare, wellness, financial, retirement, family support, continuing education, and time off benefits.

The proposed salary range for this position is:

$103,800 - $218,100

CACI is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, age, national origin, disability, status as a protected veteran, or any other protected characteristic.

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More about this job

Skills

Python
Microservices
Django
Flask
Data models
MariaDB
MongoDB
Docker
AWS
Jira
Atlassian Confluence
Git
Agile

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