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reflexiveconcepts.catsone.com

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reflexiveconcepts.catsone.com

Sr. Systems Engineer 3

NewBe an early applicant North AmericaContractSenior

Senior systems engineer doing cybersecurity assessments and long-term vulnerability analysis of large-scale DoD systems with a defensive-cyber mindset, plus IV&V of security requirements and technical leadership of other engineers. Requires 12+ years of systems engineering, Zero Trust experience, and an active TS/SCI with full-scope polygraph.

Cissp Cybersecurity Nist TypeScript Zero Trust

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Software Engineer III

NewBe an early applicant North America

Reflexive Concepts is hiring a Software Engineer III in Annapolis Junction, MD (active TS/SCI with full-scope polygraph required) to develop and enhance complex software systems for classified government programs, including analytics, algorithm development, and large-scale real-time data processing. Core stack: Java, Spring Boot, MongoDB, Kafka, Kubernetes, Docker.

Analytics CI/CD Docker Java Jms +5 skills

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Senior Systems Engineer

NewBe an early applicant North AmericaSenior

Senior systems engineer on an Agile team supporting a suite of government applications built on the Pega low-code platform: analyzing and documenting requirements, writing user stories in Jira, coordinating releases/migrations, and partnering with cybersecurity and infrastructure teams. Requires an active TS/SCI with polygraph; based in Annapolis Junction, MD.

Acceptance Criteria Agile AWS CI/CD Cloud +5 skills

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Software Integration Engineer III

NewBe an early applicant North AmericaFull-time

Integration engineer delivering fast, secure software deployments across high-performance computing environments using Ansible, Helm, Kubernetes, Docker, and Python, while acting as Tier 3 escalation lead performing root cause analysis and building automated remediation. Requires an active TS/SCI with full-scope polygraph; on-site in Annapolis Junction, MD.

Agile Ansible Atlassian Automation CLI +19 skills

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Software Engineer III

NewBe an early applicant North America

Software Engineer implementing access controls and permission mechanisms for a government agency's High-Performance Computing (HPC) systems — building RBAC/ABAC, identity federation/SSO with Keycloak, and secrets management with HashiCorp Vault in Linux. Uses Python, Bash, Ansible, containers, and GitLab CI. Requires active TS/SCI with FS polygraph.

ABAC Agile Ansible Atlassian Automation +26 skills

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Senior Software Engineer 3

NewBe an early applicant North AmericaSenior

Senior software engineer at a cleared defense contractor in Linthicum, MD: leads technical design and integration testing of government software systems and supports testing, documentation, and requirements derivation. Desired work leans cyber — malware analysis, reverse engineering, and exploit development. Requires 11 years of experience and an active TS/SCI with full-scope polygraph.

API Assembly Bash Cissp C++ +7 skills

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System Administrator I

NewBe an early applicant North America

Level 1 System Administrator monitoring, troubleshooting, and sustaining Linux-based systems for a national security mission (Y4 Desktop Services) at Fort Meade, MD. Core work is RHEL-family Linux admin, BASH scripting, and TCP/IP networking; requires DoD 8570 IAT II certification and an active TS/SCI with full-scope polygraph.

Ansible Bash CentOS Confluence Git +13 skills

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Software Engineer I

NewBe an early applicant North America

Reflexive Concepts is hiring a Software Engineer I in Hanover, MD to analyze requirements, design, code, debug, and integrate mission software, working alongside users and system engineers. Requires 7 years of software engineering experience and an active TS/SCI clearance with full-scope polygraph.

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Software Engineer III

NewBe an early applicant North America

Software Engineer III supporting the GHOSTGEM program at Fort Meade, MD: developing, sustaining, and troubleshooting mission software by building Java and Spring-based services, integrating COTS/FOSS components, and deploying containerized workloads to Kubernetes with Helm. Requires an active TS/SCI clearance with full-scope polygraph.

Ansible Atlassian Bash CI/CD CLI +21 skills

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Systems Engineer I

NewBe an early applicant North America

Systems Engineer I supporting a closed government system across multiple sites: administering and automating Linux servers, keeping them compliant with the Agency's STE/STN security requirements, and maintaining technical documentation. Core stack is Linux CLI, Bash/Python automation, Docker/Podman containers, and basic Cisco switching; requires TS/SCI with FS polygraph.

Atlassian Automation Bash Cisco CLI +11 skills

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Junior Software Developer

NewBe an early applicant North AmericaJunior

Junior software developer joining a three-person team to build, maintain, and monitor the Tracking Repository for Incoming Orders application — writing features, fixing bugs, and managing Docker deployments. Stack: Python, Django, VueJS, JavaScript, Java, AWS. Requires an active TS/SCI clearance with Full Scope Polygraph.

Agile AWS CI/CD Containerization Django +9 skills

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DevOps Engineer IV

NewBe an early applicant RemoteNorth America

DevOps Engineer IV supporting an intelligence-community program: builds Infrastructure as Code with Python, Ansible, and Terraform; runs Kubernetes, Docker, and NiFi; manages GitLab CI/CD with Argo CD on AWS; and hardens/complies RHEL systems. Work is on-site in a SCIF; requires active TS/SCI with CI polygraph and on-call rotation.

Ansible Argo CD Athena AWS CI/CD +21 skills

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Software Integration Engineer III

NewBe an early applicant North AmericaFull-time

Maintains and troubleshoots containerized services in the CASA Compute Environment (CCE), a Kubernetes-based SaaS catalog for government mission customers, while upgrading services, assisting users, and developing new features. Core stack: Linux, Python, Java, Bash, Docker, Ansible, GitLab CI. Requires TS/SCI with FS Polygraph; on-site at Fort Meade.

Ansible Automation Bash CI/CD CLI +12 skills

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Software Engineer II

NewBe an early applicant North America

DevOps-focused Software Engineer II at Reflexive Concepts in Fort Meade, MD, who monitors and sustains live production systems: diagnosing service disruptions, troubleshooting, and performing corrective actions with dev/ops teams. Core stack: Linux, Bash, Python, Docker/Kubernetes, GitLab CI, ELK/Prometheus/Grafana. Requires active TS/SCI with full-scope polygraph.

Ansible Atlassian Bash CI/CD CLI +23 skills

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Software Engineer III

NewBe an early applicant North America

Designs, develops, deploys, and supports Retrieval-Augmented Generation (RAG) solutions for a mission-critical customer in a high-performance computing Linux environment. Day-to-day work centers on Python, LLM/RAG pipelines, Docker/Kubernetes/Helm containerization, GitLab CI/CD, and Prometheus/Grafana observability; requires an active TS/SCI with FS Polygraph.

Atlassian AWS CI/CD CLI Cloud +34 skills

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Systems Engineer 4

NewBe an early applicant North America

Senior systems engineer supporting U.S. Government programs in Annapolis Junction, MD: applies systems engineering lifecycle principles (ISO/IEC 15288), facilitates SAFe Solution Train PI planning across multiple Agile Release Trains, and manages solution-level risks and cross-ART dependencies for HPC systems and mission applications. Requires an active TS/SCI with full-scope poly.

Agile HPC TypeScript

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Software Integration Engineer III

NewBe an early applicant North AmericaFull-time

Customer-facing operations engineer for the HPDA intelligence mission: triages incoming requests, scopes technical requirements, and provides standby support. The daily stack is hands-on Linux administration, Spark-based big data processing, and containerized services deployed on Kubernetes.

Ansible Atlassian Automation Bash Big Data +17 skills

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Cloud Software Engineer III

NewBe an early applicant North America

Builds, maintains, and enhances Big-Data cloud systems for intelligence community programs, covering back-end processing, analysis, and indexing using Java, the Hadoop ecosystem (MapReduce, HDFS, HBase), distributed computing, and AWS. Requires an active TS/SCI clearance with full-scope polygraph; on-site in Annapolis Junction, MD.

Analytics Angular Authentication Avro AWS +30 skills