Tech jobs

System Administrator I

Ansible Bash CentOS Confluence Git +13 skills

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.

reflexiveconcepts.catsone.com

Software Engineer III

Atlassian AWS CI/CD CLI Cloud +34 skills

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.

reflexiveconcepts.catsone.com

Systems Engineer 4

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

New North AmericaFull-time

Software Integration Engineer 4 - (HPC, Linux, Bash)

Ansible Atlassian Automation Bash CLI +12 skills

Integrates, tests, and troubleshoots HPC software stacks for a cleared government customer: Linux administration, Bash/Python scripting, Slurm job scheduling, IaC with Salt/Ansible, plus HPC file systems, interconnects, and monitoring. On-site in Annapolis Junction, MD; TS/SCI clearance with polygraph required.

228K – 279K $

Systems Engineer 4 - (Systems Engineering)

New North AmericaFull-time

Senior systems engineer at a government contractor in Annapolis Junction, MD, applying systems engineering across the full lifecycle (ISO/IEC 15288) on government programs; facilitates SAFe Solution Train PI planning and coordinates Agile Release Trains working on HPC systems and mission applications. TS/SCI clearance with polygraph required.

Software Integration Engineer 3 - (Linux, Kubernetes, Bash)

Agile Ansible Atlassian Automation Bash +19 skills

Administers, maintains, and provides operational support for a Kubernetes-based Platform-as-a-Service within a secure government compute environment at Fort Meade, integrating and sustaining COTS/GOTS software on Linux. Core stack: Linux, Kubernetes, Bash/Python, Ansible, Helm, Docker, Prometheus/Grafana. TS/SCI clearance with polygraph required.

201K – 246K $

Software Integration Engineer 4 - (HPC, Linux, Shell Scripting)

Bash C++ HPC J2EE Java +7 skills

Supports High Performance Computing (HPC) systems for a government customer at Annapolis Junction, MD (TS/SCI with polygraph required): integrating, installing, configuring, and troubleshooting COTS/GOTS software across UNIX/Linux/Windows environments. Day-to-day work centers on Linux shell scripting, GCC/parallel processing, and languages like C/C++, Java, and Python.

203K – 248K $

Software Integration Engineer Level 2 - (HPC, Linux, Python)

Bash C++ HPC J2EE Java +7 skills

Provide on-site customer support for HPC software at a government mission site in Annapolis Junction, MD — installing, configuring, compiling, and troubleshooting software across UNIX/Linux/Windows systems. Core stack includes Python, Linux shell scripting, C/C++/Java, GCC, and parallel/multi-threaded processing. TS/SCI clearance with polygraph required.

154K – 189K $

Software Integration Engineer Level 3 - (HPC, Linux, Python)

Bash C++ HPC J2EE Java +7 skills

Support High Performance Computing (HPC) operations for an intelligence-community customer at Annapolis Junction, MD: keep HPC systems running and support UNIX/Linux/Windows servers, desktops, and networks. Core stack is Linux shell scripting, Python, C/C++/Java, GCC, parallel processing, and GOTS schedulers; TS/SCI with polygraph required.

176K – 216K $

System Administrator - 3 (Linux, Windows, HPC)

Help Desk HPC Linux TypeScript Unix

System Administrator supporting Government high-performance computing (HPC) infrastructure and ECI data systems across two sites: day-to-day operations, monitoring, Tier 1/2 troubleshooting, and configuring/managing Linux, Unix, and Windows systems. Requires an active TS/SCI with polygraph and DoD 8570 IAT II certification.

180K – 220K $

Software Engineer 2 - (Python, Linux, HPC)

Agile Analytics Ansible Atlassian Automation +34 skills

Designs, develops, tests, and maintains system-management infrastructure software for High-Performance Computing (HPC) systems in a Linux environment, including processing-intensive analytics and large-scale data work. Core stack: Python, Bash/Unix scripting, Git/GitLab CI, containers. Requires TS/SCI clearance with polygraph; on-site in Annapolis Junction, MD.

196K – 239K $

Software Engineer 2 - (Python, Rust, Linux)

Agile Analytics Ansible Atlassian Authentication +31 skills

Designs, develops, tests, and maintains secure software for HPC systems — implementing access controls, permissions, and automation in Linux — using Python, Rust, and shell scripting. On-site role in Annapolis Junction, MD requiring TS/SCI clearance with polygraph.

196K – 239K $

Software Engineer 3 - (Python, Java, Apache Spark)

New North AmericaLead

Agile Airflow Analytics Anomaly Detection Atlassian +37 skills

Designs, develops, and optimizes large-scale data pipelines and analytics systems for a government customer at Fort Meade, MD, using Python, Java, and Apache Spark with Airflow orchestration. Requires an active TS/SCI clearance with polygraph; salary ranges $218k–$266k.

218K – 266K $

Software Engineer 2 - (Linux, Python, Docker)

Agile Analytics Ansible Atlassian Automation +35 skills

Software Engineer 2 building and maintaining system management infrastructure for High Performance Computing (HPC) systems in a Linux environment at a government-contractor site. Day-to-day work spans Python and Bash development, Docker containerization, Ansible automation, CI/CD, and database/algorithm work; requires an active TS/SCI clearance with polygraph.

196K – 239K $

NextSilicon

Help Desk HPC Linux macOS Unity

IT Helpdesk Technician

New On-siteMENA

Israel

First point of contact for employee technical support at NextSilicon (a high-performance computing company) in Giv'atayim, Israel. Day to day: handling tickets via email/chat/phone, troubleshooting hardware, software, OS (macOS/Windows/Linux) and network issues, maintaining IT asset inventory and handling procurement.

Vortech PCI Group S.L.

AI Data Science HPC Machine Learning Python

Data Scientist – Quantum & Advanced AI

New Europe

Spain

Data Scientist in Madrid designing, training and validating ML models and applying Quantum Machine Learning to real business cases (optimization, prediction, advanced simulation) in hybrid classical-quantum environments. Core stack: advanced Python, strong statistics, and quantum frameworks like Qiskit or Cirq.

PRAGMATIKE

Acceptance Criteria AI Assembly Bash Cloud +11 skills

Server Engineer

New Contract

Location: Hong Kong — Hybrid (factory floor, test lab and manufacturing sites; this is not a remote or desk-based role) Start date: ASAP Languages: Fluent English and fluent Mandarin are both mandatory Industry: HPC /…

Nscale

AI Ansible Automation Bash BGP +31 skills

Senior HPC Systems Engineer - APAC (GPUs)

Open 117d APACSenior

Singapore

Senior support/escalation engineer on Nscale's GPU cloud (engineered for AI workloads) based in Singapore: diagnoses GPU node faults (drivers, firmware, hardware), InfiniBand/RoCE fabric issues, storage data-path problems, and Slurm job failures across large AI clusters, while running incident response, RCA, automation, and mentoring mid-level engineers.

Nscale