Sr. Software Engineer Technical Lead

APV is a mission-driven powerhouse transforming organizations through advanced technology and human ingenuity. The Sr. Software Engineer serves as the technical lead and architecture authority for the full client application suite, owning architecture and design decisions while providing technical mentorship and oversight.

Responsibilities:

• Lead systems and data architecture, design, and technical direction across all components
• Own technical sign-off on releases: code quality, integration testing, deployment readiness, and production stability
• Lead root-cause analysis and resolution of complex defects and security vulnerabilities
• Evaluate and recommend GOTS, COTS, cloud-based, and emerging-technology solutions that minimize custom development and operational complexity
• Demonstrate — within the ~6-week knowledge-transfer window — the ability to build and deploy applications through dev/test environments into pre-production and production
• Coordinate with infrastructure, network, and development teams on integration, releases, and schedules
• Support development of required security documentation (SSP, SAR, contingency plans, POA&Ms) and NIST SSDF self-attestation / SBOM generation
• Provide technical mentorship and code-review oversight for the development team
• Provide technical input to release planning, risk identification, and change-control board submissions

Requirements:

• Minimum of 8 years of experience in computer science or software development at the enterprise level
• Expert-level Microsoft .NET Framework and .NET Core (backend services, APIs, enterprise application development)
• Angular front-end development
• SQL Server (Database Engine, SSIS, Service Broker) and T-SQL
• Elasticsearch / Lucene search architecture
• Redis distributed caching
• IIS and Windows Server administration
• Microsoft Azure IaaS and PaaS, Azure Well-Architected Framework, Infrastructure as Code (IaC)
• Git, GitHub, Azure DevOps (Boards, CI/CD pipelines, build/release management), DevSecOps practices
• Object-Oriented Design and Test-Driven Development
• JavaScript, JSON, HTML, XML
• Demonstrated technical leadership on enterprise or federal system O&M / modernization engagements
• Working knowledge of SDLC governance, Section 508 accessibility, and NIST security standards
• Prior experience leading O&M or modernization for a federal civilian agency system
• Experience migrating legacy .NET Framework applications toward .NET Core / cloud-native architectures
• Azure certifications (e.g., Azure Solutions Architect Expert, Azure Administrator Associate)
• Experience with incident-management or case-management platforms