Senior Cybersecurity Specialist

Location: United States Overview TISTA Science and Technology is seeking a Senior Cybersecurity Specialist to join our growing team. At TISTA, you’ll do meaningful, mission‑driven work that improves lives alongside teammates you trust and leaders who are transparent and supportive. We invest in your learning and internal mobility so you can build a career that keeps advancing. We’re proud to serve and hire Veterans, and we put people first in everything we do. TISTA associates enjoy above Industry Healthcare Benefits, Remote Working Options, Paid Time Off, Training/Certification opportunities, Healthcare Savings Account & Flexible Savings Account, Paid Life Insurance, Short-term & Long-term Disability, 401K Match, Professional development reimbursement, Employee Assistance Program, Paid Holidays, Military Leave, and much more! Responsibilities Architect enterprise data platforms supporting large-scale cybersecurity operations across cloud and on-premises environments. Design and implement scalable ETL/ELT data pipelines integrating structured and unstructured data from multiple enterprise systems. Lead enterprise architecture modernization initiatives, replacing legacy platforms with secure, cloud-enabled data solutions. Develop secure REST APIs and enterprise integrations to enable high-volume data exchange and system interoperability. Establish DevSecOps and CI/CD practices to automate deployments, improve release quality, and support multi-environment hosting. Optimize database performance, data models, and platform scalability to support terabytes of daily data processing and thousands of concurrent users. Implement data governance, quality, security, and observability standards aligned with FISMA, RMF, and NIST compliance requirements. Provide technical leadership by mentoring engineers, driving solution architecture, and coordinating cross-functional teams throughout the project lifecycle. Develop executive dashboards, analytics, and data visualizations to deliver actionable insights for senior leadership and operational decision-making. Support business development and proposal efforts by authoring technical solutions, architecture documentation, proof-of-concepts, and RFP/RFI responses. Qualifications Experience supporting the Department of Veterans Affairs or other federal healthcare environments. Familiarity with ServiceNow, CMDB structures, workflow processes, and operational ticketing. Awareness of Azure and AWS cloud services and cloud security concepts. Understanding of virtualization and containerization concepts and their relationship to network security visibility. Familiarity with enterprise WAF technologies. Experience with vulnerability and compliance frameworks such as NIST, CISA, OMB, and FedRAMP. Experience contributing to incident response workflows, detection tuning, and malware analysis processes. Experience supporting SOP lifecycle management and configuration standardization across enterprise systems. Proficiency with Microsoft Teams and SharePoint for communication and content management. Familiarity with SIEM platforms and security data correlation workflows. Strong professional demeanor with the ability to accept direction and contribute constructively to a team environment. Strong accountability and reliability, with consistent availability and responsiveness in a remote work setting. Education: Bachelor's Degree in Computer Science, Electronics Engineering, or equivalent PLUS 10 Years of experience. Eight (8) years of additional relevant experience may be substituted for education. Clearance: The ability to pass a Tier 4/HIGH Background Investigation. Location: Remote, USA. Monday