Strong solution-design expertise, including: Architecture Decision Records (ADRs), Mermaid diagrams (C4, Sequence Diagram), REST and asynchronous API contract design using OpenAPI and AsyncAPI, Enterprise integration patterns, including Claim Check, Transactional Outbox, and Circuit Breaker. Understanding of tools and techniques for design, development, and support of enterprise-grade solutions and applications, databases and data models, BI and data warehousing, IT security models, NoSQL technologies, or IT hardware platforms.