reflexiveconcepts.catsone.com

NewBe an early applicant North AmericaLead

Software Engineer III

Analytics API AWS Cloud Docker +9 skills

Leads the design, development, and debugging of complex software systems (analytics, algorithms, large data sets, real-time systems) on government programs in Columbia, MD, including overseeing development teams. Requires 20 years of SWE experience, a CS degree or equivalent experience, and a polygraph within 5 years; desired stack includes Java/Spring Boot, React/Node.js, AWS, MongoDB, and Elasti

NewBe an early applicant North AmericaContractSenior

Sr. Systems Engineer 3

Cissp Cybersecurity Nist TypeScript Zero Trust

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.

NewBe an early applicant North AmericaLead

Software Engineer III

Angular Elasticsearch Java JavaScript MongoDB +3 skills

Reflexive Concepts is hiring a senior front-end Software Engineer III in Annapolis Junction, MD to act as technical lead across multiple software development teams — designing, developing, and modifying software using AngularJS/NodeJS, JavaScript build tooling, Java/Python, with MongoDB and Elasticsearch backing the solutions.

Software Engineer III

Analytics CI/CD Docker Java Jms +5 skills

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.

System Engineer II

DevOps Kubernetes Linux Rancher Virtualization +1 skills

Reflexive Concepts is hiring a hands-on, DevOps-minded System Engineer for its Analytic Mission Integration (AMI) team in Annapolis Junction, MD. Day to day they administer and troubleshoot Linux, NetApp storage, VMware/vSphere, and Rancher-managed Kubernetes, while writing systems engineering documentation and managing requirements for mission systems.

NewBe an early applicant North AmericaSenior

Senior Systems Engineer

Acceptance Criteria Agile AWS CI/CD Cloud +6 skills

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.

NewBe an early applicant North AmericaFull-time

Software Integration Engineer III

Agile Ansible Atlassian Automation CLI +19 skills

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.

Software Engineer III

ABAC Agile Ansible Atlassian Automation +26 skills

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.

System Engineer III

AWS Confluence Data Pipelines Docker Elasticsearch +13 skills

Watch Desk Engineer monitoring and maintaining DoD mission systems 24x7: tracking health, performance, and data pipelines, handling incidents and recovery, plus producing systems engineering docs (DoDAF, requirements, interfaces). Core stack: Linux, Docker, Kubernetes, AWS, NiFi, Elasticsearch, and monitoring tools like Grafana/Prometheus.

Software Engineer II

Authentication CI/CD Docker Git GitLab +10 skills

Design, develop, integrate, test, and maintain highly available enterprise web services for an Identity, Credential, and Access Management (ICAM) solution supporting Attribute-Based Access Control, integrating with a COTS LDAP directory and other microservices. Core stack: Java, REST, Git/Maven, JUnit, GitLab CI/CD, Docker/Kubernetes.

NewBe an early applicant North AmericaSenior

Senior Software Engineer 3

API Assembly Bash Cissp C++ +7 skills

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.

NewBe an early applicant North AmericaJunior

Software Engineer I

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.

TypeScript

Software Engineer III

Ansible Atlassian Bash CI/CD CLI +21 skills

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.

Signals Software Engineer II

C++ Java Linux Signal Processing

Reflexive Concepts is hiring a Signals Software Engineer II in Columbia, MD to develop, maintain, and enhance RF signal processing software (detectors, demodulators, protocol processors) using C++, Java, and advanced Linux, including complex DSP algorithms. Requires 7+ years of signals experience and a polygraph within 5 years.

NewBe an early applicant North AmericaLead

Software Engineer III

Analytics Angular API JavaScript NgRx +5 skills

Senior software engineer building and leading development of complex, performance-critical software systems (analytics, large datasets, real-time systems) on government contracts, including team-lead duties. Stack focuses on Spring Boot backends with REST APIs and modern JavaScript frontends, ReactJS preferred, with state management via Redux/Jotai/NgRx.

NewBe an early applicant North AmericaJunior

Systems Engineer I

Atlassian Automation Bash Cisco CLI +11 skills

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.

NewBe an early applicant North AmericaJunior

Junior Software Developer

Agile AWS CI/CD Containerization Django +9 skills

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.

NewBe an early applicant North AmericaFull-time

Software Integration Engineer III

Ansible Automation Bash CI/CD CLI +12 skills

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.

Software Engineer II