Domain Architect

Stellent IT LLC; Rhode Island; Remote; USD 150,000 - 230,000; Full time

Job summary

Stellent IT LLC is seeking a Domain Architect for a remote, long-term contract. The role requires 10+ years of engineering, with 5+ years building payment systems, and deep domain-driven design experience.

You will lead architectural efforts across teams, implement durable workflow solutions, and ensure secure, scalable payment processing in cloud environments. The ideal candidate brings strong C#/.NET 8+ expertise, experience with Kafka, Kubernetes, and modern observability tooling, and a

Qualifications

• 10+ years engineering experience.
• 5+ years building payment systems.
• Domain-driven design: bounded contexts, domain events, context mapping.
• Expert C# / .NET 8+
• Temporal or durable workflow engine in production is preferred.
• Kafka in production.
• Azure PaaS: App Service, Cosmos DB, APIM, Key Vault or similar on GCP.
• Containerization in Kubernetes.
• Idempotency, saga, and reconciliation patterns.
• PCI DSS and tokenization.
• Observability design: OpenTelemetry or APM.
• Track record of aligning multiple teams on a shared architecture.

Skills

Domain-driven design

C# / .NET 8+

Multi-cloud

Observability

Team alignment

Tools

Kafka

Azure PaaS

Kubernetes

OpenTelemetry / APM

Job description

Job Title: Domain Architect

Location: Remote

Duration: Long term contract

Must-Have:

• 10+ years engineering, 5+ years building payment systems.
• Domain-driven design: bounded contexts, domain events, context mapping.
• Expert C# / .NET 8+ and still codes.
• Temporal (preferred) or similar durable workflow engine in production.
• Kafka in production.
• Azure PaaS: App Service, Cosmos DB, APIM, Key Vault --> similar technology on Google Cloud Platform.
• Containerization, running code in Kubernetes.
• Idempotency, saga, and reconciliation patterns in production.
• PCI DSS and tokenization.
• OpenTelemetry or APM observability design.
• Track record of aligning multiple teams on a shared architecture.

Nice-to-Have:

• Temporal Nexus or Worker Versioning
• EBT SNAP / WIC processing
• Digital wallets: Apple Pay, Google Pay
• Gateway APIs: Aurus, Adyen, Fiserv, Worldpay, Chase
• Network tokens, DPAN, multi-capture, marketplace split settlement
• Multi-cloud: Azure + Google Cloud Platform
• LaunchDarkly-driven migrations
• .NET Aspire, Testcontainers, Mockoon/WireMock
• Retail finance feeds (TLOG, sales audit, GL)
• Grocery/omnichannel retail
• Google Cloud Platform experience