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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Software Dev Engineer (UM), Bespoke Solutions - **Company:** Amazon.com, Inc. - **Location:** Arlington, VA, United States - **Experience:** Expert - **Salary:** $168,100.0 - $227,400.0 - **Contract:** Internship / Graduate position - **Skills:** Amazon Web Services, Audit Trail, Cloud Computing, Code Review, Data Structures, Relational Databases, Distributed Systems, Federal Information Processing Standards (FIPS), Field-Programmable Gate Array (FPGA), Key Management, PostgreSQL, Network Control, Public Key Infrastructure, Role-Based Access Control, Blockchain, Software Engineering, Software Systems, Data Logging, Cloud Platform System, Backend, Information Technology, Build Process, Software Coding, Software Version Control, Programming Languages, Microservices - **Published:** October 14, 2026 - **Apply:** https://www.clearancejobs.com/jobs/9051550/senior-software-dev-engineer-um-bespoke-solutions ## About the Role 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, Bachelor's degree in computer science or equivalent - 10+ years of full software development life cycle, including coding standards, code reviews, source control management, build processes, testing, and operations experience - Experience operating systems in air-gapped, classified, or FedRAMP/IL5+ environments - Experience implementing ABAC/RBAC authorization models with dynamic policy evaluation - Background in embedded device fleet management or IoT platforms at scale - Knowledge of FIPS-validated cryptographic modules and NIST-approved algorithms - Familiarity with Merkle trees, blockchain-based audit logs, or other tamper-evident data structures - Current, active US Government Security Clearance of TS/SCI with Polygraph ## Description Bespoke Solutions 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 highly secure and enterprise network environments. This is a unique opportunity to work at the intersection of distributed systems, security engineering, and fleet operations - building infrastructure that must meet the highest standards of reliability, integrity, and compliance. We develop AWS owned hardware & software solutions in order to scale globally, minimize cost, and maximize value for our customers. We are a growing team of hardware, software and FPGA engineers with a dedicated product development lab. If Arlington, VA (Arlington HQ): This role will sit in our new headquarters in Northern Virginia, where Amazon will invest $2.5 billion dollars, occupy 4 million square feet of energy efficient office space, and create at least 25,000 new full-time jobs. Our employees and the neighboring community will also benefit from the associated investments from the Commonwealth including infrastructure updates, public transportation improvements, and new access to Reagan National Airport. By working together on behalf of our customers, we are building the future one innovative product, service, and idea at a time. Are you ready to embrace the challenge? Come build the future with us. This position requires that the candidate selected must be a US Citizen and currently possess and maintain an active TS/SCI security clearance. The position further requires that, after start, the selected candidate obtain and maintain an active TS/SCI security clearance with polygraph or commensurate clearance for each government agency for which they perform AWS work., Architect and develop a decomposed, microservices-based platform comprising independently deployable and horizontally scalable subsystems (fleet management, rule execution, device communication, logging, security, and presentation layers) - Design and implement secure inter-service communication across both control plane (REST/mTLS) and high-throughput data plane (streaming) protocol surfaces - Build and maintain cryptographic trust infrastructure supporting multiple certificate authority hierarchies with offline validation mechanisms suited to disconnected environments - Implement multi-tenant data isolation using attribute-based access control (ABAC), row-level security, and transparent query rewriting - designed to scale from single-tenant to hundreds of tenants over a 5-year horizon - Develop cryptographic integrity mechanisms for configuration and audit data, including chained signatures and append-only tamper-evident logging - Engineer emergency access ("break-glass") workflows with time-bounded credentials, multi-party approval, and segregated audit trails - Ensure all cryptographic operations leverage FIPS 140-2 Level 3 validated key management with strict key isolation boundaries - Design reconciliation protocols where edge devices remain the recommended source of truth, with backend systems maintaining synchronized projections A day in the life You'll be building the backbone of a platform that securely manages thousands of embedded devices in some of the most demanding operational environments. Your work will directly impact fleet reliability, security posture, and operational efficiency at scale - solving problems that few engineers ever get to tackle.