Software Engineer 3 - Linux/Python/Docker/Kubernetes/LLM/CI/CD/Grafana

Captivation SoftwareAnnapolis Junction, MD

Posted 4 Nov 2026

Skills in this posting

  • python
  • elasticsearch
  • sql
  • aws
  • docker
  • kubernetes
  • gitlab ci
  • ci/cd
  • linux
  • pytorch
  • tensorflow
  • llm
  • rag
  • git
  • jira
  • testing

About the role

<div class="content-intro"><h1 style="text-align: center;"><span style="color: rgb(230, 126, 35); font-family: georgia, palatino, serif;"><strong data-redactor-tag="strong">Build to something to be proud of.</strong></span></h1>

<hr>

<p style="text-align: center;"><span style="font-family: verdana, geneva, sans-serif; font-size: 10pt;">Captivation has built a reputation on providing customers exactly what is needed in a timely manner. Our team of engineers take pride in what they develop and constantly innovate to provide the best solution. Captivation is looking for software developers who can get stuff done while making a difference in support of the mission to protect our country.</span></p>

<p> </p></div><h1 style="text-align: center;"><span style="color: rgb(230, 126, 35); font-family: georgia, palatino, serif;">Description</span></h1>

<hr>

<p><span style="font-size: 10pt; font-family: verdana, geneva, sans-serif;">Captivation Software is looking for a senior level software engineer who shall design, develop, deploy, and support solutions within a high-performance computing (HPC) Linux environment. The successful candidate will have hands-on experience with Large Language Models (LLMs), LLM orchestration frameworks, knowledge retrieval systems, embedding models, and containerized applications. Candidates must be proficient in Python, Kubernetes, Helm, CI/CD automation, and secure SI system development, with the ability to deliver scalable, production-ready SI solutions in mission-critical environments.</span></p>

<p> </p>

<h1 style="text-align: center;"><span style="color: rgb(230, 126, 35); font-family: georgia, palatino, serif;">Requirements</span></h1>

<hr>

<h3><span style="font-family: georgia, palatino, serif;">Security Clearance:</span></h3>

<ul>

<li style="font-family: verdana, geneva, sans-serif; font-size: 10pt;"><span style="font-family: verdana, geneva, sans-serif; font-size: 10pt;">Must currently hold a Top Secret/SCI U.S. Government security clearance with a favorable Polygraph, therefore all candidates must be a U.S. citizen</span></li>

</ul>

<h3><span style="font-family: georgia, palatino, serif;">Minimum Qualifications:</span></h3>

<ul>

<li style="font-family: verdana, geneva, sans-serif; font-size: 10pt;">Master's degree in Computer Science or related discipline from an accredited college or university, plus five (5) years of experience as a SWE, in programs and contracts of similar scope, type, and complexity.</li>

<li style="font-family: verdana, geneva, sans-serif; font-size: 10pt;">Bachelor's degree in Computer Science or related discipline from an accredited college or university, plus seven (7) years of experience as a SWE, in programs and contracts of similar scope, type, and complexity</li>

<li style="font-family: verdana, geneva, sans-serif; font-size: 10pt;">Nine (9) years of experience as a SWE, in programs and contracts of similar scope, type, and complexity.</li>

</ul>

<h3><span style="font-family: georgia, palatino, serif;">Required Skills:</span></h3>

<ul>

<li style="font-family: verdana, geneva, sans-serif; font-size: 10pt;">Proven experience working in Linux environments, including advanced use of the Linux command-line interface (CLI) for development, troubleshooting, and system administration</li>

<li style="font-family: verdana, geneva, sans-serif; font-size: 10pt;">Recent hands-on software development experience using Python, with a strong understanding of modern software engineering practices and frameworks</li>

<li style="font-family: verdana, geneva, sans-serif; font-size: 10pt;">Experience with containerization technologies, such as Docker, Podman, and containers, for application packaging, deployment, and lifecycle management</li>

<li style="font-family: verdana, geneva, sans-serif; font-size: 10pt;">Experience designing, authoring, and deploying Helm charts to manage Kubernetes-based applications and services</li>

<li style="font-family: verdana, geneva, sans-serif; font-size: 10pt;">Experience developing, testing, deploying, and supporting containerized applications in production environments</li>

<li style="font-family: verdana, geneva, sans-serif; font-size: 10pt;">Experience creating, configuring, and managing Kubernetes resources, including Deployments, Services, ConfigMaps, Secrets, Ingresses, and Operators</li>

<li style="font-family: verdana, geneva, sans-serif; font-size: 10pt;">Working knowledge of Generative SI technologies, including Large Language Models (LLMs), Retrieval-Augmented Generation (RAG) architectures, embedding models, and vector databases</li>

<li style="font-family: verdana, geneva, sans-serif; font-size: 10pt;">Experience implementing and maintaining CI/CD pipelines using tools such as GitLab CI/CD, Flux CD, GitLab Runners or similar tools</li>

<li style="font-family: verdana, geneva, sans-serif; font-size: 10pt;">Experience leveraging observability, metrics, logging, and monitoring solutions including Prometheus and Grafana</li>

<li style="font-family: verdana, geneva, sans-serif; font-size: 10pt;">Proficiency with Git-based source control workflows, including branching strategies, code reviews, pull/merge requests, and collaborative development practices</li>

<li style="font-family: verdana, geneva, sans-serif; font-size: 10pt;">Understanding of software development lifecycle (SDLC) best practices, including automated testing, security scanning, code quality analysis, and DevSecOps principles</li>

</ul>

<h3><span style="font-family: georgia, palatino, serif;">Desired Skills:</span></h3>

<ul>

<li style="font-family: verdana, geneva, sans-serif; font-size: 10pt;"><span style="font-family: georgia, palatino, serif;"><span style="font-family: verdana, geneva, sans-serif; font-size: 10pt;">Familiar with developing, deploying, troubleshooting, and sustaining mission applications in an AWS Cloud environment</span></span></li>

<li style="font-family: verdana, geneva, sans-serif; font-size: 10pt;"><span style="font-family: verdana, geneva, sans-serif; font-size: 10pt;">Experience with the Atlassian suite of tools including Confluence and Jira</span></li>

<li style="font-family: verdana, geneva, sans-serif; font-size: 10pt;"><span style="font-family: verdana, geneva, sans-serif; font-size: 10pt;">Experience working with, and debugging, GPU-enabled applications</span></li>

<li style="font-family: verdana, geneva, sans-serif; font-size: 10pt;"><span style="font-family: verdana, geneva, sans-serif; font-size: 10pt;">Experience using a machine-learning framework (PyTorch, TensorFlow, etc)</span></li>

<li style="font-family: verdana, geneva, sans-serif; font-size: 10pt;"><span style="font-family: verdana, geneva, sans-serif; font-size: 10pt;">Experience with other ML pipelines/frameworks like KubeFlow, NeMo, PyTorch Lightning, etc.</span></li>

<li style="font-family: verdana, geneva, sans-serif; font-size: 10pt;"><span style="font-family: verdana, geneva, sans-serif; font-size: 10pt;">Experience working with and debugging GPU-enabled applications</span></li>

<li style="font-family: verdana, geneva, sans-serif; font-size: 10pt;"><span style="font-family: verdana, geneva, sans-serif; font-size: 10pt;">Experience with SQL, Elasticsearch, and Vector databases</span></li>

<li style="font-family: verdana, geneva, sans-serif; font-size: 10pt;"><span style="font-family: georgia, palatino, serif;"><span style="font-family: verdana, geneva, sans-serif; font-size: 10pt;">Knowledge of SI inferencing solutions such as Nvidia NIM/TRITON, vLLM, and direct deployment (e.g. Ray)</span></span></li>

</ul>

<p> </p>

<p style="text-align: center;"><span style="font-family: verdana, geneva, sans-serif; font-size: 10pt;"><em><strong>This position is open for direct hires only. We will not consider candidates from third party staffing/recruiting firms.</strong></em></span></p><div class="content-conclusion"><h1 style="text-align: center;"><span style="color: rgb(230, 126, 35); font-family: georgia, palatino, serif;">Benefits</span></h1>

<hr>

<ul>

<li style="text-align: left; font-size: 10pt;"><span style="font-family: verdana, geneva, sans-serif; font-size: 10pt;">Annual Salary: $130,000 - $270,000 (Depends on the Years of Experience)</span></li>

<li style="text-align: left; font-size: 10pt;"><span style="font-family: verdana, geneva, sans-serif; font-size: 10pt;">Up to 20% 401k contribution (No Matching Required and Vested from Day 1)</span></li>

<li style="text-align: left; font-size: 10pt;"><span style="font-family: verdana, geneva, sans-serif; font-size: 10pt;">Above Market Hourly Rates</span></li>

<li style="text-align: left; font-size: 10pt;"><span style="font-family: verdana, geneva, sans-serif; font-size: 10pt;">$3,600 HSA Contribution</span></li>

<li style="text-align: left; font-size: 10pt;"><span style="font-family: verdana, geneva, sans-serif; font-size: 10pt;">6 Weeks Paid Time Off</span></li>

<li style="text-align: left; font-size: 10pt;"><span style="font-family: verdana, geneva, sans-serif; font-size: 10pt;">Company Paid Employee Medical/Dental/Vision Insurance/Life Insurance/Short-Term & Long-Term Disability/AD&D</span></li>

</ul>

<p> </p></div>

From Captivation Software's careers page on Greenhouse. See the original posting. OneProfile isn't the employer and doesn't take applications; you apply on their site.

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