Senior Application Architect / Lead Engineer- .NET / C#

Bizapt Solutions

United States

Remote

USD 180,000 - 260,000

Full time

2 days ago

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Job summary

Bizapt Solutions seeks a senior software architect/lead to design and deliver enterprise-grade applications. You will own the architecture across the .NET backend and Vue 3 frontend, implement microservices, and guide cross-functional teams to deliver scalable solutions.

The role emphasizes AI/LLM integration using OpenAI/Anthropic, LangChain, Semantic Kernel, pgvector, and related tooling, with PostgreSQL as the data backbone.

Qualifications

10+ years in enterprise web apps with 3+ years in architect/lead roles.
Strong backend in .NET/C# and frontend in Vue.js/Nuxt with TS.
Experience delivering scalable web APIs, DI, and microservices.

Skills

Full-stack enterprise apps

Architect/lead experience

Vue.js 3

Nuxt

TypeScript

.NET / C# (DOTNET 8/10)

Web APIs

Dependency Injection

Microservices / modular monolith

PostgreSQL

AI & LLM integration

LangChain

AutoGen

Semantic Kernel

pgvector

Function calling

AI Agents

Tools

pgvector

Function calling

AI Agents

LangChain

AutoGen

Semantic Kernel

OpenAI

Anthropic

Job description

Backend: .NET / C# (.NET 8/10), Web APIs, Dependency Injection, microservices / modular monolith
Database: Strong PostgreSQL
LLM APIs (OpenAI, Anthropic) open-source models
Semantic Kernel, LangChain, AutoGen
pgvector, function calling, AI Agents

Required Candidate profile

10+ years full-stack enterprise apps, with 3+ years in architect/lead role
Frontend: Vue.js (Vue 3, Composition API) and Nuxt (SSR/SSG patterns) with TypeScript
AI & LLM Integration:

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