Poly clearance is required - ID - 540

Halogen Engineering Group, Inc•Annapolis Junction, MD

22h•$227,000 - $241,000•Onsite

About The Position

Halogen Engineering is seeking a Software Engineer to design, develop, deploy, and support Retrieval-Augmented Generation (RAG) solutions in a high-performance computing (HPC) Linux environment. The role involves working with Large Language Models (LLMs), LLM orchestration frameworks, knowledge retrieval systems, embedding models, and containerized applications. The successful candidate will use Python, Kubernetes, Helm, CI/CD automation, and secure SI system development to deliver scalable, production-ready SI solutions in mission-critical environments. The candidate will design, develop, test, deploy, document, maintain, and enhance complex software systems based on documented requirements. Systems may include processing-intensive analytics, novel algorithms, very large datasets, real-time systems, business management information systems, data repositories, data transport services, and application or systems development and monitoring. The work may be performed individually or as part of a team. Responsibilities also include reviewing and testing software components against design requirements, documenting test results, resolving software problem reports, and applying software development and design methodologies suited to the environment. The role contributes to system design decisions, including hardware/software trade-offs, software reuse, OSS/COTS/GOTS use, and requirements analysis. The position is onsite in Annapolis Junction, Maryland, on the day shift, with no travel required. Current TS/SCI clearance and a polygraph less than seven years old are required. The projected annual compensation range is $227,000 to $241,000.

Requirements

Current TS/SCI security clearance.
Polygraph required; it must be less than seven years old.
Proven experience working in Linux environments, including advanced Linux CLI use for development, troubleshooting, and system administration.
Recent hands-on software development experience using Python and a strong understanding of modern software engineering practices and frameworks.
Experience with containerization technologies such as Docker, Podman, and containerd.
Experience designing, authoring, and deploying Helm charts for Kubernetes-based applications and services.
Experience developing, testing, deploying, and supporting containerized applications in production environments.
Experience creating, configuring, and managing Kubernetes resources, including Deployments, Services, ConfigMaps, Secrets, Ingresses, and Operators.
Working knowledge of Generative SI technologies, including LLMs, RAG architectures, embedding models, and vector databases.
Experience implementing and maintaining CI/CD pipelines using tools such as GitLab CI/CD, Flux CD, GitLab Runners, or similar tools.
Experience with observability, metrics, logging, and monitoring solutions, including Prometheus and Grafana.
Proficiency with Git-based source control workflows, including branching strategies, code reviews, pull/merge requests, and collaborative development.
Understanding of SDLC best practices, including automated testing, security scanning, code quality analysis, and DevSecOps principles.
One of the stated education and experience combinations: a master's degree in computer science or a related discipline plus five years of SWE experience on programs and contracts of similar scope, type, and complexity; a bachelor's degree in computer science or a related discipline plus seven years of such SWE experience; or nine years of such SWE experience.
Experience developing in Unix and ability to perform shell scripting.
Working knowledge of configuration management tools and Web Services implementation.
Experience with agile development processes and source code control systems such as Git.
Ability to develop software using one or more languages such as C, C++, Python, Ruby, Perl, or JavaScript.
Ability to develop relational and non-relational database applications.
Ability to use orchestration frameworks such as Spring and Kafka and familiarity with queue management systems.
Experience with continuous integration practices and container technologies such as Docker.

Nice To Haves

Familiarity with developing, deploying, troubleshooting, and sustaining mission applications in an AWS Cloud environment.
Experience with Atlassian tools, including Confluence and Jira.
Experience working with and debugging GPU-enabled applications.
Experience using a machine-learning framework such as PyTorch or TensorFlow.
Experience with ML pipelines or frameworks such as KubeFlow, NeMo, or PyTorch Lightning.
Experience with SQL, Elasticsearch, and vector databases.
Knowledge of SI inferencing solutions such as Nvidia NIM/TRITON, vLLM, and direct deployment (e.g., Ray).
Experience with Java development using Eclipse IDE and J2EE applications.
Experience with collaboration and software development tools such as Atlassian.
Experience developing event-driven or data-driven analytics and cloud-based solutions.
Ability to design or implement complex algorithms subject to strict timing, system resource, or interface constraints.

Responsibilities

Analyze user requirements to derive software design and performance requirements.
Debug existing software and correct defects.
Design and code new software or modify existing software to add features.
Write or review software and system documentation.
Integrate existing software into new or modified systems or operating environments.
Develop simple data queries for existing or proposed databases or data repositories.
Develop or implement algorithms to meet or exceed system performance and functional standards.
Develop and execute test procedures for software components.
Develop software solutions by analyzing system performance standards, system flow, data usage, work processes, and problem areas.
Modify software to adapt to new hardware or improve performance.
Design, develop, and modify software systems using scientific analysis and mathematical models to predict and measure outcomes of design decisions.
Perform quality control on team products and ensure the quality of developed and modified software.
Recommend improvements to documentation and software development process standards.
Coordinate software installation and monitor system performance against operational specifications.
Confer with system and hardware engineers to derive software requirements and understand project limitations, capabilities, performance requirements, and interfaces.
Recommend technologies and processes for complex software projects.
Serve as a team lead or technical lead, oversee software development teams, and ensure work follows the applicable development process and constraints.
Select the software development process in coordination with the customer and system engineering.
Delegate programming and testing responsibilities to teams and monitor their performance.
Design, develop, test, deploy, document, maintain, and enhance RAG solutions and other complex software systems.
Develop and support containerized applications in production, including Kubernetes resources and Helm charts.
Implement and maintain CI/CD pipelines, observability, monitoring, and logging solutions.
Use Linux command-line tools and shell scripting for development, troubleshooting, and system administration.
Contribute to secure SI system development and deliver scalable production-ready solutions in mission-critical environments.

Benefits

CareFirst medical plans, including two Platinum PPO plans with a $0 deductible and one HSA plan with a $1,500 deductible.
Company payment of 100% of medical premium costs up to $25,000.
CareFirst Wellness Rewards Program.
Dental plan; company pays 50% of plan costs.
Vision plan; company pays 100% of plan costs.
401(k) retirement plan with a 10% company contribution, automatically vested and paid each pay period.
Life insurance, AD&D, and short- and long-term disability coverage.
20 paid time off days.
6 federal holidays.
5 floating holidays.
Performance- and billable-hours-based bonuses.