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 will 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.

Want to help shape a new platform and see your code in production fast? OEC is bringing several supply chain applications onto one modern, cloud-native platform, modeled on our proven Backorder Fulfillment architecture. We’re looking for a hands-on senior engineer to help build it.

What you’ll do

Design, build, test and ship features end to end on a .NET modular monolith (DDD, CQRS/MediatR, EF Core on PostgreSQL) running on AWS serverless, event-driven infrastructure
Take on meaty problems like multi-market support, time-boxed order processing and payments integrations
Apply and improve architecture patterns such as transactional outbox, idempotent consumers and tenant-aware data access, and contribute to ADRs
Work AI-first: use agentic tools every day for planning, coding, testing and review, and help shape the team’s shared AI context
Practice TDD, give thoughtful PR reviews, and own your services in production
Pair with fellow engineers and help onboard new ones

What you bring

6+ years building and shipping production software, including business-critical web or SaaS apps
Modern .NET (8+), C#, EF Core and PostgreSQL
Hands-on experience with DDD, modular monoliths and CQRS, or a solid working understanding of them
AWS serverless and event-driven development (Lambda, EventBridge, SQS) and reliability patterns
Daily use of AI development tools, with full ownership of what they produce
Strong testing discipline, Git/GitHub and CI/CD
Bachelor’s in Computer Science or a related field, or equivalent experience

Bonus points
React/TypeScript, OAuth/OIDC, Datadog, legacy migrations (strangler fig), data platforms, or automotive or supply chain experience.

Why OEC
You’ll join a team that values ownership, quality and continuous growth, guided by our principles: Make Others Matter, Dare for Better and Own It. You’ll sometimes need to flex your hours for global meetings, releases and production support.

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