Principal Software Engineer

23 hr. ago 10 hr. ago

Patch Infotech Principal Software Engineer

Required:

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), performance profiling.
Strong C#/.NET — OOP design, .NET Core / .NET 8, REST APIs, 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, 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, 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.

Skills