SR Software Engineer - San Antonio with Security Clearance

About the Mission IAMUS Consulting supports mission-critical cyber and network operations across the Department of Defense and the Intelligence Community. This role delivers secure, modern software capabilities—web applications, backend services, and the cloud infrastructure that runs them—directly in support of those operational missions. Position Summary The Senior Software Engineer (SME) provides technical and management leadership on major software development and modernization efforts.

As the authoritative domain expert across the full stack—React frontends, Python (FastAPI and/or Django) backends, and AWS-based containerized infrastructure—this individual establishes technical goals and delivery plans that meet project objectives, directs and controls engineering activities on behalf of the client, and carries overall responsibility for technical outcomes, delivery methods, level-of-effort and financial performance, and staffing. This is a working technical leader role: the SME remains deeply hands-on while also setting direction, negotiating scope and priorities with client leadership, and interfacing with senior stakeholders.

Decisions and domain judgment made in this position have a critical impact on overall project implementation and mission success. The role may supervise or direct other engineers.

Key Responsibilities Technical Leadership & Architecture (SME)
• Serve as the authoritative technical SME across frontend, backend, and cloud/Dev Ops domains, providing expert guidance on architecture, design patterns, and technology selection.
• Establish architectural direction, engineering standards, and technical goals aligned to project and mission objectives.
• Make high-impact technical decisions and resolve complex, ambiguous problems where domain judgment materially affects project implementation. Hands-On Software Engineering
• Design, build, and maintain responsive React frontends with an emphasis on usability, performance, and accessibility.
• Develop secure, scalable backend services and APIs in Python using FastAPI and/or Django.
• Deliver clean, testable, maintainable code and drive quality through code review, automated testing, and technical documentation. Cloud Infrastructure & Dev Ops
• Architect, provision, and manage AWS infrastructure using infrastructure-as-code practices.
• Containerize applications with Docker and deploy, scale, and operate workloads on Kubernetes.
• Design and maintain CI/CD pipelines, observability/monitoring, and automated deployment workflows to ensure reliable, repeatable delivery. Project Planning & Delivery Management (SME)
• Establish goals, roadmaps, and delivery plans that meet defined project objectives.
• Estimate level of effort and own task-level financial and schedule performance, including tracking burn against contract funding.
• Define engineering methods, tooling, and processes, and adapt them to evolving mission and program needs. Client Engagement & Stakeholder Leadership (SME)
• Direct and control engineering activities for the client, holding overall responsibility for meeting technical requirements.
• Interface with client senior management and program stakeholders; negotiate scope, priorities, technical trade-offs, and delivery commitments.
• Translate mission needs and operational requirements into sound technical strategy and communicate progress, risk, and options to leadership. Team Leadership & Staffing (SME)
• Provide technical leadership and mentorship, raising the capability of the engineering team.
• Contribute to staffing decisions, resource planning, and team composition to ensure the right skills are aligned to the work.
• May supervise, direct, and review the work of other engineers. Security & Compliance
• Champion secure-by-design and secure development practices within a CUI-handling, regulated environment.
• Ensure software and infrastructure align with applicable DoD/IC security requirements and organizational compliance obligations.

Required Qualifications
• Demonstrated SME-level mastery across the full stack:
React (modern JavaScript/Type Script), Python backend development with FastAPI and/or…