.Net Solutions Architect

.Net Solutions Architect

Cincinnati, OH (Hybrid)

Phone and Web

Long Term Contract

Job Description

• Own solution architecture from discovery through production, translating product and business needs into target-state designs, transition plans, and actionable engineering guidance.
• Define architecture for React-based portals and embeddable widgets, C#/.NET microservices and APIs, Python data pipelines, and PostgreSQL/MongoDB persistence.
• Design AWS-native solutions using appropriate combinations of EKS, Lambda, ECS batch workloads, S3, Step Functions, managed data services, and supporting network services.
• Create and maintain architecture decision records, context and sequence diagrams, API and event contracts, non-functional requirements, and deployment views.
• Guide secure integration with embedded finance providers, partner platforms, identity services, enterprise APIs, file-based exchanges, webhooks, and downstream billing or settlement capabilities.
• Establish patterns for service boundaries, API-first design, event-driven processing, idempotency, resiliency, error handling, auditability, and modular provider onboarding.
• Partner with platform engineering on Terraform/Pulumi infrastructure, Kubernetes deployment patterns, CI/CD, environment strategy, certificate and secret management, and release controls.
• Drive threat-aware design using IAM, encryption, key management, secrets, TLS/certificate management, network segmentation, least privilege, and secure software development practices.
• Define observability standards including logs, metrics, traces, alerts, dashboards, SLOs, and operational runbooks, lead architecture reviews for performance, resilience, and production readiness.
• Coach engineers, facilitate design reviews, resolve cross-team technical decisions, and clearly communicate options and trade-offs to leadership and delivery stakeholders.

Qualifications

Required:

• Be able to work from Cincinnati, OH 2 -3 days a week.
• 10+ years in software engineering and solution architecture, including deep experience with C#, ASP.NET, and .NET Core.
• Strong hands-on AWS architecture experience delivering secure, production-grade distributed systems.
• Demonstrated expertise in microservices, REST APIs, asynchronous/event-driven patterns, and enterprise integration.
• Working knowledge of React-based web architecture, micro-frontends or embeddable components, and browser security considerations.
• Experience with PostgreSQL plus document/NoSQL stores such as MongoDB, including data modeling, performance, and migration strategies.
• Practical experience with Docker, Kubernetes/EKS, infrastructure as code, CI/CD, and automated release controls.
• Ability to design non-functional requirements for availability, scalability, performance, recoverability, security, privacy, and supportability.
• Excellent written and verbal communication with the ability to influence across product, engineering, security, operations, data, and external integration teams.

Preferred:

• AWS Certified Solutions Architect, Professional or Associate.
• Experience in payments, financial services, embedded finance, lending, banking-as-a-service, or regulated platforms.
• Experience with Akamai, AWS KMS/ACM, Argo CD, Snowflake, SFTP/file integration, and enterprise identity or SSO.
• Experience building pluggable provider architectures, white-label portals, embeddable widgets, or multi-tenant platforms.
• Familiarity with architecture governance, threat modeling, PCI-adjacent controls, privacy requirements, and audit evidence.