Senior Full-Stack Engineer: .NET/C# & React for Catalog

Lifted (an Upwork Company); México; On-site; MXN 1,000,000 - 1,500,000; Full time

Job summary

Lifted (an Upwork Company) is seeking a Senior Full-Stack Software Engineer to help build and modernize a business-critical product catalog platform. You will work across backend services, React frontend applications, and relational data layers, taking ownership of features throughout the full software development lifecycle.

You will design, develop, and implement scalable full-stack solutions, build APIs and UIs, and mentor peers while embracing AI-assisted tooling to deliver production-grade

Qualifications

• 8+ years of professional software engineering experience.
• Strong backend development with C#/.NET, Go, Python, or Java; C#/.NET primary.
• Strong frontend experience with React or similar.
• Strong relational DB knowledge (MS SQL Server, PostgreSQL).
• Experience with REST APIs and microservices.
• Hands-on with AI-assisted development tools.

Responsibilities

• Design, develop and modernize a business-critical product catalog platform.
• Build backend services, REST APIs, business logic, data models, and React-based UIs.
• Own features end-to-end from development to deployment and production support.
• Mentor engineers and contribute to technical direction.
• Participate in code reviews and enforce quality and CI/CD practices.
• Document architecture and decisions; maintain observability and monitoring.

Skills

Full-stack development

C#/.NET

Go

Python

Java

React

MS SQL Server

PostgreSQL

REST APIs

Microservices

CI/CD

AI-assisted tools

Tools

Claude Code

GitHub Copilot

Cursor

Job description

Lifted (an Upwork Company) is seeking a Senior Full-Stack Software Engineer to help build and modernize a business-critical product catalog platform. You will work across backend services, React frontend applications, and relational data layers, taking ownership of features throughout the full software development lifecycle.

You will design, develop, and implement scalable full-stack solutions, build APIs and UIs, and mentor peers while embracing AI-assisted tooling to deliver production-grade