Top Tech Jobs & Startup Jobs

Administer on-premises Microsoft Exchange and Microsoft 365 Exchange Online in hybrid, enterprise environments. Provide Tier 2 operations, troubleshooting, monitoring, migrations, upgrades, patching, security compliance, and disaster recovery support. Develop PowerShell automation, manage permissions and email security services, conduct FOIA searches and data-spill cleanup, document incidents and root-cause findings, and support 24/7 operations with on-call coverage. The role also requires collaboration across service lanes, mentoring, and technical planning for Exchange infrastructure improvements.

Develops and maintains scalable full-stack knowledge management applications supporting DISA and Joint Force Headquarters DODIN operations. Translates operational requirements into technical solutions, builds front- and back-end applications, APIs, and reusable libraries, automates business processes using SharePoint and related technologies, troubleshoots software, and creates technical documentation. Collaborates with site knowledge managers on testing, bug fixes, updates, policy maintenance, and customer support in high-stress operational environments.

Administer Tanium infrastructure and endpoint modules across enterprise networks for patching, vulnerability management, compliance, monitoring, automation, and reporting. Support SIEM integrations, incident response, forensic data collection, operational documentation, dashboards, and compliance evidence. The role requires cybersecurity infrastructure engineering experience, Computer Network Defense operations expertise, scripting skills in PowerShell or Python, knowledge of RMF and Zero Trust, an approved DoD IAT or IAM Level II/III certification, and an active TS/SCI clearance.

Conducts advanced cyber threat intelligence analysis for DHS, tracking threat actors, campaigns, TTPs, infrastructure, and emerging threats. Supports incident response, threat hunting, malware analysis, host- and network-based forensics, intelligence collection, attribution, and mitigation. Correlates intelligence with Splunk and Analyst1 data, develops detection content and reports, and provides actionable recommendations to improve cyber resilience.

Administer and develop self-hosted Jira and Confluence environments, including workflows, automation, permissions, plugins, upgrades, backups, migrations, integrations, security audits, dashboards, and reporting. The role documents configurations and procedures, supports Agile processes, trains stakeholders, and advises federal and commercial teams on Atlassian best practices. It requires onsite work in Arlington, enterprise Atlassian experience, AWS integration knowledge, and an active DoD TS/SCI clearance.

Engineers, administers, monitors, and sustains Microsoft Defender XDR and Sentinel SIEM/SOAR environments. Responsibilities include designing integrations, analytics, data connectors, RBAC, Azure security architecture, monitoring pipelines, automation, upgrades, troubleshooting, detection engineering, Tier III incident response, documentation, and vulnerability remediation across an enterprise cybersecurity environment.

Designs, configures, maintains, and troubleshoots enterprise networks across on-premises, virtualized, and cloud environments. Responsibilities include Cisco routing and switching, BGP and OSPF, VMware NSX, F5 load balancing, network security, performance tuning, capacity planning, and infrastructure documentation. Supports cyber training and simulation environments, collaborates with technical teams and customers, and resolves complex issues across network, server, virtualization, and application layers.

Leads Agile Release Train execution, PI planning, release management, environment scheduling, configuration governance, and build and branch controls. Facilitates Inspect and Adapt sessions, manages release scope, ensures Jira workflow hygiene, governs Bitbucket pull requests, coordinates deployments, and produces internal and customer-facing release documentation. The role coordinates Engineering, Project Management, Operations, and customer stakeholders to deliver software safely and efficiently in a controlled environment.

The Junior Cyber Analyst will support USCYBERCOM by developing operational plans and coordinating integrated cyber operations, utilizing cybersecurity knowledge to address threats.

Lead NASA’s enterprise firewall engineering architecture function, providing technical direction for firewall, IDS/IPS, perimeter security, zero-trust, segmentation, cloud integration, modernization, and automation initiatives. Oversee architecture strategy, migrations, governance, policy lifecycle management, and security controls while serving as the senior technical escalation point. Lead and mentor multidisciplinary engineering teams, support proposals and estimates, and deliver technical recommendations to NASA and Leidos leadership.