Principal Software Engineer

Requirements:

• 8+ years of software engineering experience, with a strong portfolio of production systems you architected and shipped.
• Expert-level Python: application development, async patterns, type-checking, testing frameworks (pytest), and performance profiling.
• Strong C#/. NET, OOP design, . NET Core/. NET 8, REST APIs, and background services. Candidates without C# experience will not be considered.
• Production experience with generative AI: Azure OpenAI, LangChain, Semantic Kernel, RAG architectures, embeddings, structured output extraction, and evaluation harnesses.
• Hands-on experience with agentic AI frameworks in shipped production systems: LangGraph, AutoGen, CrewAI, or equivalents. This is not optional: we need someone who has built agentic systems, not just read about them.
• Azure platform depth: AKS, Azure Functions, CosmosDB, Postgres, Azure OpenAI, Azure DevOps, Terraform.
• Distributed system design: microservices, event-driven architecture, API design, multi-tenant data isolation, observability.
• Enterprise engineering discipline: TDD, CI/CD, RBAC/IAM, secure coding, SQL performance tuning.
• Ability to communicate architecture decisions in writing and in technical reviews; comfort with client-facing technical interaction.

Preferred:

• TypeScript/React production experience for full-stack coverage.
• Document understanding: vision LLMs (GPT-4o Vision), OCR, and multi-modal extraction pipelines from PDF/DOCX.
• Familiarity with contract management, procurement, or invoice processing domains.
• Experience contributing to or consuming open-source AI frameworks.