Application Engineer (Backend)

CACI; Linthicum (MD); On-site; USD 104,000 - 218,000; Full time

Job summary

CACI in Linthicum, MD is seeking an Application Engineer (Backend) to design, develop, test, and deploy Python-based REST endpoints and microservices using Django and Flask. You will work with MariaDB or MongoDB, return JSON data to UI front ends, and provide robust backend middleware while collaborating with cross‑functional teams to optimize performance.

This full‑time role requires TS/SCI with Polygraph, a relevant degree with extensive technical experience, and hands‑on expertise in Python,

Qualifications

• Strong experience building Python-based REST endpoints.
• Experience with Django or Flask frameworks.
• Database experience with MongoDB or MariaDB.
• Understanding of microservice architecture.
• Experience with Docker.

Responsibilities

• Develop, test, deploy, and maintain Python-based REST endpoints.
• 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.

Skills

Python

REST endpoints

Microservices

Docker

Django/Flask

JSON

Education

High School Diploma/GED

Associate’s Degree

Bachelor’s Degree

Master’s Degree

Doctorate’s Degree

Tools

Django

Flask

Docker

MariaDB

MongoDB

Job description

Job Title: Application Engineer (Backend)Job Category: Information TechnologyTime Type: Full timeMinimum Clearance Required to Start: TS/SCI with PolygraphEmployee Type: RegularPercentage of Travel Required: NoneType 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.