Jobs at Open Systems Technologies Corporation

Designs, deploys, tests, patches, secures, and supports data center network infrastructure across physical and virtual environments. Configures LAN, WAN, VLAN, SDN, firewalls, load balancers, and private cloud networking; monitors performance and availability; resolves critical issues; develops automation scripts; maintains documentation, backups, and redundancy; provides advanced support, reporting, and knowledge transfer to government staff.

Provides information systems security engineering for complex, geographically distributed systems. Responsibilities include designing security architectures, validating requirements, assessing and mitigating risks, applying the Risk Management Framework, conducting vulnerability and security testing, auditing configurations, supporting certification and continuous monitoring, enforcing security policies, and collaborating with engineering, development, integration, test, program management, and customer teams.

Leads complex network projects and teams supporting Department of Justice networks. Responsibilities include network design, administration, maintenance, upgrades, troubleshooting, firewall and encryption configuration, automation, documentation, technology evaluation, and network optimization. Provides technical leadership, manages deliverables and schedules, advises government and technical stakeholders, and mentors junior network administrators.

Design and implement cloud service delivery models (PaaS/IaaS/SaaS/DaaS), automate cloud resources using DevSecOps, migrate and debug on-prem applications to cloud, optimize cost/availability/recovery, manage cloud policies and security, and independently develop new cloud software or major enhancements.

Support RMF lifecycle for classified systems: develop A&A/ATO packages, implement and validate security controls, perform vulnerability and compliance scanning, manage STIG implementation and patch validation, produce RMF artifacts, and participate in continuous monitoring and risk analysis.

Support the full RMF lifecycle for classified systems: develop and maintain authorization packages, conduct security control assessments, track vulnerabilities and remediation, support continuous monitoring, review configurations and scans, collaborate with system owners and administrators, and participate in audits to maintain ATOs and system security.

Design, develop, test, deploy, and maintain scalable full-stack software and platform solutions. Collaborate with cross-functional teams, troubleshoot complex issues, produce technical documentation, and drive continuous improvement and automation for large-data analytics and on-demand software delivery.

Provide system administration, O&M, and security management for a complex, geographically distributed network. Install/configure applications and servers, patch and harden systems, manage virtualization, handle troubleshooting, maintain documentation, and support air-gapped enclaves and off-site locations.

Monitor and analyze cyber threats, support incident response, perform malware analysis, collect and assess threat intelligence from multiple sources, produce reports and advisories, collaborate with internal teams and government/international partners, and develop tools/automation to improve threat intelligence capabilities.

Design, develop, test, deploy, and maintain scalable cloud-based data applications and OpenSearch/Elasticsearch data layers. Build data ingestion pipelines, implement indexing and query optimizations, deploy to AWS (S3, EC2, Athena), collaborate with cross-functional teams, troubleshoot mission-critical issues, and document procedures while driving continuous improvement.

Provide mid-level Oracle DBA support for BRM/ECE within the Oracle Communications/RODOD stack. Responsibilities include RAC/Data Guard administration, production troubleshooting, performance tuning, backup and recovery, high-availability, and on-call rotational support. Require functional understanding of BRM/ECE processes and collaboration across LATAM/EMEA operations.

Develop, test, and maintain software as part of an agile SAFe/DevOps team. Analyze complex requirements, design using CASE tools, author reusable code and automation scripts, support CI/CD, and participate in planning, BDD/TDD practices, and deployment to test/production environments.

Build and maintain ETL pipelines and data architectures to support a security-focused visual analytics application. Design and construct large relational databases, integrate systems with existing data warehouse structures, develop analytics and scripts to transform varied data formats, and scale, monitor, and operate data platforms using SIEM and ETL tools.

Provide application and OSS/BSS support for Oracle Communications (BRM, charging, billing, mediation, provisioning, order management). Perform production troubleshooting, monitoring, KPI analysis, documentation, maintenance, and 24x7 on-call duties. Coordinate with customers, internal teams, and vendors. Work remotely from LATAM with rotational shifts; Spanish and English required.

Provide Linux system administration for mission-critical HPC and operations environments: monitor, troubleshoot, configure, and maintain Linux systems, filesystems, networking, and applications; automate with Bash; support software builds, configuration management, upgrades, and documentation while collaborating with engineering teams to ensure reliability and performance.

Manage and execute complex end-to-end administrative workflows for a work unit or program, interpret and apply policies, coordinate issue resolution across units, provide comprehensive administrative support, train junior staff, and represent the unit in meetings under minimal supervision. Requires Top Secret (FSP).

Designs, deploys, tests, certifies, operates, patches, and maintains DevSecOps infrastructure and tooling for a large SOC environment. Manages Linux servers, IaaS deployments, cluster architectures, monitoring tools, and cybersecurity-focused infrastructure and application software. Uses scripting to automate operations and troubleshoot interoperability issues.

Design, implement, and maintain automation scripts and CI/CD for a DIA PaaS using Ansible and RedHat tools. Deploy and manage containerized applications on OpenShift/Kubernetes, monitor performance, troubleshoot infrastructure issues, and collaborate with development and operations teams.

Support mission-critical SRE infrastructure through Linux administration, automation (Salt, Ansible), monitoring (Nagios, Thruk, Prometheus, Splunk, Grafana), troubleshooting, software integration, and code/repository maintenance while collaborating with engineering and operations teams.

Support deployment of microservices in a Linux multi-tenant environment via DevSecOps pipelines. Develop and maintain GitLab CI/CD, deploy and troubleshoot Docker containers, support developer testing and deployments, perform security remediation, produce DevOps documentation, and provide technical guidance for microservices.