Principal .NET Engineer – AWS- Remote within the US

About the role

Interview integrity requirement Candidates must personally complete all interviews and technical assessments. The use of proxies or third-party representatives during any stage of the hiring process is prohibited and will result in disqualification. Final candidates may be required to participate in at least one in-person interview. Some travel for this role is expected. Reasonable accommodations will be provided in accordance with applicable laws. About the Role When an OEM can't fill a backordered part, a vehicle sits off the road. Our Backorder Fulfillment product finds that part across the dealer network and automates purchase, payment, shipping and tracking. We're launching with a major global OEM in Europe and expanding next year. We're unifying our supply chain applications on one cloud-native platform, and you'll help build it from the first commit. Your patterns and code will shape it for years. What You'll Do

Build and ship features end to end in .NET, PostgreSQL and AWS serverless (Lambda, EventBridge, SQS) Own the design of complex capabilities like multi-market OEM support and payments Keep the architecture healthy with clear module boundaries, reliable events and documented decisions Lead production readiness: Datadog observability, incident response and root-cause analysis Make AI agents central to how the team plans, builds, tests and reviews Raise the bar through TDD, thoughtful code review and mentoring

What You Bring

10+ years shipping production software, including 3+ at staff, principal or tech-lead scope Deep modern .NET/C# expertise: DDD, modular monoliths, CQRS and EF Core with PostgreSQL Production experience with AWS serverless and event-driven architecture A daily AI-first workflow and ownership of every line AI helps you write Strong testing discipline and GitHub-based CI/CD Clear written communication, team-first mindset CS or related degree, or equivalent experience

Bonus Points React/TypeScript micro-frontends, Auth0/OIDC, Stripe, data platforms, legacy modernization, or automotive/supply chain experience. The Details Remote (US), standard business hours with occasional flexibility for releases or incidents. Camera-on virtual meetings. What We Offer

Full benefits starting Day 1: Medical, Dental, and Vision 401(k) with company match Unlimited Flex Time Off plus 10 company-paid holidays Remote-first role with monthly communication stipend Professional development programs and tuition assistance Employee resource groups and exclusive employee discounts

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staff+ From the job title

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Location as listed

United States

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