Senior Systems Engineer with Security Clearance

Position Title: Senior Systems Engineer - Web Applications (SME / Tier 4 Escalation) Location: Hybrid - Fort Belvoir, VA Clearance Requirements: Must be eligible to obtain Interim Security Clearance (U.S. Citizenship required) Position Status: Contract Pay Rate: $70-$80/hr on W2 About the Role We are seeking a Senior Systems Engineer - Web Application SME to serve as the highest escalation point for complex, mission-critical web application issues supporting a secure, government-facing environment.

In this role, you will ensure the stability, performance, and reliability of enterprise web applications running in a containerized (Kubernetes) and distributed environment. This position is ideal for a senior engineer who excels in deep technical troubleshooting, incident response, and cross-functional collaboration with DevOps and engineering teams.

Key Responsibilities

• Serve as Tier 4 escalation point for critical web application incidents and outages
• Perform advanced root cause analysis (RCA) across full-stack systems (frontend, backend, APIs, databases, infrastructure)
• Troubleshoot application issues in Kubernetes/containerized environments
• Lead problem management efforts and drive permanent resolution of recurring issues
• Collaborate with DevOps, Engineering, and Operations teams to improve system reliability
• Use monitoring tools (e.g., Splunk, Grafana, Prometheus, ELK Stack) to diagnose and resolve issues
• Develop and maintain runbooks, documentation, and operational knowledge base content Required Qualifications
• 7+ years of experience in Systems Engineering, Application Engineering, or similar role
• Strong experience supporting complex web applications (full stack: frontend, backend, APIs, databases)
• Proven experience in Tier 3/Tier 4 incident escalation and resolution
• Hands-on experience with Kubernetes or containerized environments
• Experience with monitoring/logging tools (Splunk, Grafana, ELK, etc.)
• Strong troubleshooting, debugging, and analytical skills
• Ability to work effectively in high-pressure, mission-critical environments
• U.S. Citizenship required (must be eligible for interim clearance) Nice to Have
• Cloud experience (AWS, Azure, or GCP)
• Kubernetes certifications (CKA, CKAD)
• Scripting/automation experience (Python, Bash, Ansible)
• Experience in government or highly regulated environments
• Familiarity with CI/CD pipelines and DevOps practices Why This Role This is a high-impact engineering opportunity supporting a mission-critical platform used in secure government environments.

You will work on complex distributed systems and Kubernetes-based infrastructure, helping drive improvements in application performance, scalability, and operational resilience. About Seneca Resources At Seneca Resources, we are more than just a staffing and consulting firm, we are a trusted career partner. With offices across the U.S. and clients ranging from Fortune 500 companies to government organizations, we provide opportunities that help professionals grow their careers while making an impact. We offer competitive pay, comprehensive benefits (medical, dental, vision), 401(k) retirement plans, and a dedicated team that supports your success throughout your engagement. Seneca Resources is an

Equal Opportunity Employer committed to building a diverse and inclusive workforce.