JavaScript Fullstack developer

InnoveusIT; Cupertino (CA); On-site; USD 160,000 - 210,000; Full time

Job summary

InnoveusIT in Cupertino, CA is seeking an experienced full stack contractor to build production-grade web applications and APIs. You will own features end to end—from database schema through backend services to the user interface.

This hands-on role requires comfort with ambiguity, shaping the design as much as coding, and acting as an owner rather than a ticket-taker. Experience: 8+ years in full stack development; frontend React, Python backend, REST APIs; onsite 3 days/week in Cupertino and

Qualifications

• At least 8+ years hands-on experience in full stack development.
• Experience building production-grade web applications and APIs.
• Ability to own features end-to-end from database to UI.

Responsibilities

• Own features end-to-end from database schema through backend services to the UI.
• Build scalable web applications and APIs for production use; work through ambiguity and shape design.

Skills

React (hooks)

Python

FastAPI/Flask

Relational databases

SQL optimization

System design

Problem solving

AI tooling (Claude Code)

Electron

Tools

FastAPI

Flask

Electron

PostgreSQL

MySQL

SQL Server

Job description

• Location: Cupertino, California (3 days onsite)

Experience required: At least 8+ years hands on in full stack development.

Role Summary

We are looking for experienced full stack contractors to build production-grade web applications and APIs. You will own features end to end - from database schema through backend services to the user interface. This is a hands-on build role for engineers who are comfortable working through ambiguity, shaping the design as much as writing the code, and operating as an owner rather than a ticket-taker.

Must-Have Skills

Frontend

• React experience preferred (hooks, state management, component architecture)
• Proficient in Python, writing production-grade code
• Hands-on experience with FastAPI or Flask for building REST APIs

Database

• Experience with relational databases (PostgreSQL, MySQL, SQL Server, or equivalent)
• Good understanding of schema design, joins, indexing, and query optimization

Architecture & Problem Solving

• Ability to think through system design and build scalable solutions
• Strong analytical mindset to break down complex or ambiguous problems

Good-to-Have Skills

• Experience with Claude Code or other AI-assisted development tools — extra points for this
• desktop app based on
• Electron
• framework - Extra points for this

These are weighted equally with technical skill. Candidates who are strong engineers but weak here will not be a fit.