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Application Developer/Engineering Lead

Prospance Inc.Santa Clara, CA🇺🇸United StatesPosted 24 Aug 2026

Why This Role Stands Out

This hybrid role offers a fantastic opportunity to lead application modernization using cutting-edge AI frameworks, transforming legacy systems into modern architectures with ReactJS and Python. You'll thrive here if you're a skilled .NET developer eager to mentor engineers, drive best practices, and shape the future of application development in a collaborative environment. Apply now to accelerate your career growth and make a significant impact!

Quick Overview

Seniority
Mid Senior
Work mode
Hybrid
Location
Santa Clara, CA, United States
Posted
20 hours ago
FastAPIMicroservicesAWSAzureC#ASP.NETGoogle CloudLLMPythonREST

Job Description

Engineering Lead App Modernization (AI-Assisted)
Role Summary
Lead a modernization POD responsible for transforming legacy ASP/.NET applications into a modern architecture using ReactJS frontend and Python FastAPI microservices. The role will leverage the client s Agentic AI development framework to accelerate code analysis, refactoring, and testing while ensuring engineering quality and delivery.
Key Responsibilities
Lead modernization of ASP/.NET applications to ReactJS + Python FastAPI architecture
Define API-first and microservices modernization approach
Guide engineers on AI-assisted development using agentic frameworks
Review and validate AI-generated code, tests, and documentation
Drive engineering best practices, CI/CD, and automated testing
Conduct code reviews, architecture decisions, and technical governance
Coordinate with stakeholders on delivery roadmap and modernization strategy
Mentor engineers and ensure quality, scalability, and security
Must Have Skills
Core Engineering
Strong experience with ASP.NET / C# application development
Experience modernizing monolithic applications to microservices
Hands-on experience with ReactJS
Experience building REST APIs using Python (FastAPI preferred)
Strong understanding of API design, microservices, and CI/CD pipelines
AI-Assisted Engineering
Experience using AI coding assistants (Copilot, Claude Code, AI IDE tools)
Experience in Prompt Engineering and building Agents, Sub Agents, Workflows using Claude or other AI platforms
Ability to guide teams using AI for code refactoring, documentation, and testing
Experience reviewing and validating AI-generated code artifacts
Nice to Have
Experience with Agentic AI frameworks
Knowledge of LLM prompting for engineering tasks
Exposure to cloud platforms (AWS/Azure/Google Cloud Platform)
Experience with automated modernization or code migration tools
Experience
10+ years software engineering
3+ years in technical leadership or architecture roles

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