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System Administrator
System administrator on a cleared government program: day-to-day operations, monitoring, and Tier 1/2 support for enterprise Windows and Linux infrastructure, plus modernization work spanning on-prem, hybrid, and AWS cloud using Terraform, Ansible, Docker, and CI/CD tooling. Requires active TS/SCI with Full Scope Polygraph.
DevOps Engineer
DevOps Engineer at Reflexive Concepts in Annapolis Junction, MD, deploying and troubleshooting distributed web applications: installing/configuring complex software, managing network servers, and monitoring performance. Core stack is Linux, AWS, Docker/Swarm, Terraform, Ansible, and GitLab CI/CD, with a rotating on-call pager week every 4-6 weeks.
Software Engineer II
Software Engineer II supporting the VISTA Development and Sustainment effort on the Integration Services team: designing, coding, debugging, and integrating software, building algorithms and database/data-repository interfaces, and writing test procedures and documentation. Core stack is Python, Kotlin/Java, Terraform, Elasticsearch/OpenSearch, and AWS; an in-scope polygraph within 7 years is requ
Software Engineer II
Backend Software Engineer II on Reflexive Concepts' Data Analysis & Visualization team, building Java/Spring Boot backend services and RESTful APIs that turn mission data into usable analytics. Day-to-day work spans system design, relational schema work, code reviews, and Agile delivery in Linux environments, on-site in Annapolis Junction, MD.
DevOps Engineer
Reflexive Concepts is hiring a DevOps Engineer in Laurel, MD to support cloud migration and operations on a cleared (TS/SCI + Full Scope Polygraph) program. Day-to-day work spans AWS cloud transitions, automation with Ansible and Terraform, CI/CD with Jenkins and GitLab, patching, and containerized deployments.
Full Stack Developer
Reflexive Concepts is hiring a Full Stack Developer (mid/senior preferred) to enhance, maintain, and sustain a high-performance geospatial collaboration tool that serves as a repository for finished intelligence products. The stack includes Java/Spring Boot, C/C++, Python/Bash/PHP, Tomcat, Elasticsearch/Solr, Oracle, and Linux, with rotating 24/7 on-call duty.
Platform Engineer (DevOps / Full-Stack Hybrid)
Reflexive Concepts is hiring a hybrid DevOps/full-stack Platform Engineer to lead deployment of a production system across three network environments using Kubernetes and Docker, while also modifying Java Spring back-end and Vue.js front-end components and building a repeatable CI/CD deployment pipeline.
Software Engineer III
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.
System Engineer III
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.
DevOps Engineer III
DevOps Engineer III on-site in Columbia, MD: builds release pipelines, automates deployments, and serves as technical lead on an Agile team managing Linux/AWS platform infrastructure. Core stack includes Git, Jenkins/Bamboo, Docker, Kubernetes, Puppet/Ansible, MySQL, and Elasticsearch.
Software Engineer III
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.
Cloud Engineer / Full Stack Developer 2 - (Python, Java, AWS)
Cloud engineer / full-stack developer (SWE2) supporting a government customer at Fort Meade, Annapolis Junction, MD; TS/SCI with polygraph required. Day to day: building Python or Java web-based server applications, AWS automation and data pipelines, and data modeling against relational and NoSQL databases on Linux.
Software Engineer 2 - (Python, Kotlin, Java)
Software Engineer 2 building and maintaining complex, processing-intensive software systems (analytics, large datasets, real-time systems) for a cleared government mission in Annapolis Junction, MD. Core stack is Python, Kotlin/Java, Terraform, Elasticsearch/OpenSearch, and AWS; TS/SCI with polygraph and ~14 years of SWE experience required.
Software Engineer 1 - (Java, Python, SQL)
Full-stack software engineer (level 1, but 7 years' experience required) developing and maintaining complex government software systems — analytics, large data sets, real-time and business systems — in C/C++, Python, Java and SQL, with web frontends (Vue/React) and Kubernetes/Docker deployments. TS/SCI clearance with polygraph required; onsite in Annapolis Junction, MD.
Software Engineer 1 - (Python, C++, RF)
Software engineer developing, maintaining, and enhancing complex software systems (analytics, algorithms, real-time, large data sets) for a cleared government mission in Annapolis Junction, MD. Core stack is Python, C++, basic RF, and Git, with desired exposure to Docker, Kubernetes, CI/CD, and Vue/React. Requires an active TS/SCI clearance with polygraph.
Software Engineer 3 - (Python, AI, Vulnerability Research)
Senior engineer building AI-enabled tooling for computer network exploitation and vulnerability research: agentic LLM harnesses, sandbox-based dynamic analysis, and Python backend services (FastAPI/Django, PostgreSQL). Requires TS/SCI clearance with polygraph and ~12 years' experience; based in Columbia, MD.
Full-Stack Software Engineer 3 - (Java, REST APIs, NoSQL)
Full-stack Java engineer on a 3-4 person team building a web platform that integrates publicly available information into an analytical tool for mission customers. Day to day: develop Java REST APIs, data ingest pipelines (Apache NiFi), and NoSQL storage (Elasticsearch, Dgraph, MongoDB, Redis). TS/SCI clearance with polygraph required.
Full Stack Developer 2 - (Full Stack, Backend, Django)
Full stack developer (backend-focused) building and modernizing a mission management and workflow automation system for a government customer at Fort Meade. Day-to-day: Django/FastAPI API development, Docker/Kubernetes migration, and security hardening. Requires TS/SCI clearance with polygraph and ~8 years SWE experience.
Software Developer (Senior) - $164K – $182K
Senior backend-focused software developer on a 200+ FTE program supporting a government sponsor's web applications, working within a large team of developers, DevOps, security, systems, and data engineers. Core stack is Java (Spring Boot, JAX-WS web services) on Linux with Agile workflows; active TS/SCI with polygraph is required.