Senior Software Engineer – Secure Fleet Platform

Amazon Web Services (AWS); Denver (CO); On-site; USD 168,100 - 227,400; Full time

Job summary

Amazon Web Services (AWS) in Denver, CO is seeking a Senior Software Development Engineer to design, build, and operate a mission‑critical, multi‑tenant platform for managing large‑scale fleets of embedded devices across secure enterprise networks.

The role emphasizes distributed systems, security engineering, and fleet operations—delivering infrastructure with high reliability, integrity, and compliance. U.S. citizenship and TS/SCI with polygraph eligibility are required.

Qualifications

• 7+ years of leading design or architecture (design patterns, reliability and scaling) of new and existing systems experience.
• 5+ years of non‑internship professional software development experience.
• 5+ years of programming with at least one software programming language experience.
• Experience as a mentor, tech lead or leading an engineering team.
• Strong background in security‑hardened system design, including PKI, mutual TLS, and cryptographic signing.
• Proficiency with PostgreSQL or similar relational databases, including row‑level security and policy‑based access control.
• Current, active US Government Security Clearance of Top Secret with SCI eligibility or above.

Responsibilities

• Architect and develop a microservices‑based platform with scalable subsystems for fleet management, rule execution, device communication, logging, security and presentation.
• Design and implement secure inter‑service communication across REST/mTLS and high‑throughput data streaming surfaces.
• Build cryptographic trust infrastructure with multiple CA hierarchies and offline validation for disconnected environments.
• Implement multi‑tenant data isolation using ABAC, row‑level security, and query rewriting for scale.
• Develop cryptographic integrity mechanisms for configuration and audit data with tamper‑evident logs.
• Engineer break‑glass workflows with time‑bounded credentials and segregated audit trails.
• Ensure cryptographic operations use FIPS 140‑2 Level 3 validated KMS and strict key isolation boundaries.
• Design reconciliation protocols where edge devices remain truth source with synced backend projections.

Skills

Leading design/architecture

Software development experience

Programming experience

Mentorship / tech lead

Security design PKI TLS

PostgreSQL / databases

Security clearance

Education

Bachelor's degree in CS or equivalent

Job description

Amazon Web Services (AWS) in Denver, CO is seeking a Senior Software Development Engineer to design, build, and operate a mission‑critical, multi‑tenant platform for managing large‑scale fleets of embedded devices across secure enterprise networks.

The role emphasizes distributed systems, security engineering, and fleet operations—delivering infrastructure with high reliability, integrity, and compliance. U.S. citizenship and TS/SCI with polygraph eligibility are required.