Application Engineer 4, API

Themis Insight, LLC

Application Engineer 4 developing backend solutions utilizing Python and Django for automation in security evaluations. Delivering support for applications using structured data management across various platforms.

Posted 6/19/2026full-timeLinthicum Heights • Maryland • 🇺🇸 United StatesSeniorLeadWebsite

Tech Stack

Tools & technologies

AWSCloudDjangoDockerFlaskMariaDBMicroservicesMongoDBPythonTypeScript

About the role

Key responsibilities & impact

develop capabilities to shift from the current manual system security evaluation and authorization process to a new model that emphasizes automation, streamlined processes and approvals, continuous monitoring and assessment, and network data gathering across the entire life cycle of a project.
The Application Engineer (Backend) will provide the development, test, deploy, and sustainment of various Python based ReST end points, microservices, and data model management capabilities utilizing Django and Flask frameworks to interact with data models stored in MariaDB or MongoDB and send data upon request, in JSON format, to UI front ends.
The developer will provide middleware and backend support to all system applications.

Requirements

What you’ll need

TS/SCI with a Polygraph
Twelve (12) years minimum experience and a High School Diploma/GED.
Ten (10) years minimum experience and an Associate's Degree.
Eight (8) years minimum experience and a Bachelor's Degree.
Six (6) years minimum experience and a Master's Degree.
Four (4) years minimum experience and a Doctorate's Degree.
Python
Docker
Experienced using Django or Flask
Databased experience using MongoDB or MariaDB
ReST endpoint development
Micro service model
AWS or other cloud experience
JSON and/or XML serialization
Jira
Confluence
Git version control
Agile

Benefits

Comp & perks

full health benefit premium coverage
generous contributions toward your retirement
Competitive health, dental, and vision plans with 100% paid premiums
401k: We contribute 6% even if you don't!
Time Off: 11 standard holidays, and 25 days of PTO
Career Development: Get career counseling and individualized career development plans, including education and training.
Employee referral bonuses for successful hires

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

PythonDjangoFlaskReST endpoint developmentMicroservice modelMongoDBMariaDBJSONXML serializationDocker

Certifications

TS/SCI with a Polygraph