Jobs at Open Systems Technologies Corporation

Monitors networks, investigates cybersecurity incidents, documents breaches, performs vulnerability testing and remediation, and conducts digital forensics. The analyst operates firewalls and encryption tools, analyzes recovered data, confirms intrusions, creates forensically sound duplicates, and supports real-time cyber defense operations for deployable Incident Response Teams.

Designs, deploys, maintains, secures, and optimizes high-performance PostgreSQL database environments. Troubleshoots performance issues, develops SQL queries and stored procedures, manages backups and recovery, ensures data integrity, and collaborates with cross-functional teams on database solutions. The role also requires staying current with PostgreSQL administration practices and technology trends.

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.

Serves as an Information System Security Officer for a large software development and integration program. Responsibilities include enforcing security policies, evaluating security solutions, maintaining system security plans and certification documentation, managing IAVAs and vulnerability remediation, administering identification and authentication, supporting configuration management, and maintaining operational information assurance posture. Requires extensive ISSO experience, security documentation expertise, and a current full-scope polygraph.

Provides database engineering and Oracle DBA support for complex, distributed intelligence systems. Responsibilities include database architecture, design, administration, migration, replication, backup and recovery, performance tuning, security, schema development, scripting, requirements analysis, documentation, and technical issue resolution. Collaborates with engineering, testing, security, management, and customer teams in an Agile environment, supporting high availability, capacity planning, system optimization, and quarterly PI Planning activities.

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.

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.

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.

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.

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.