Lead Full-Stack Engineer (W2 Contract)

Confirmed live in the last 24 hours

Tech Holding

Los Angeles, California, United States

On-site

Posted April 15, 2026

Job Description

About us:

Working at Tech Holding isn't just a job, it's an opportunity to be a part of something bigger. We are a full-service consulting firm that was founded on the premise of delivering predictable outcomes and high-quality solutions to our clients. Our founders and team members have industry experience and have held senior positions in a wide variety of companies – from emerging startups to large Fortune 50 firms – and we have taken our combined experiences and developed a unique approach that is supported by the principles of deep expertise, integrity, transparency, and dependability.

The Role:

We are looking for a skilled Lead Full-Stack Engineer to join our team for a project-based assignment supporting one of our clients. The ideal candidate will own end-to-end feature delivery across the full stack, from React front-end architecture to Node.js services and database design. This role is highly hands-on and requires strong technical leadership, with the ability to make architectural decisions that will shape the platform long-term.

You will work closely with client stakeholders, as well as internal product and engineering teams, in a fast-paced, product-led environment, contributing to both technical execution and engineering standards.

Key Responsibilities:

Own end-to-end feature delivery across the full stack (React, Node.js, database layer).
Design and drive architectural decisions including API design, data modeling, service boundaries, and caching strategies.
Set and maintain a high bar for code quality through reviews, tooling, and best practices.
Profile performance and debug issues across the stack, from browser to backend systems.
Design and maintain scalable search infrastructure, with a focus on Algolia.
Mentor mid-level engineers while maintaining strong individual contribution.
Participate in incident response, post-mortems, and long-term reliability improvements.
Collaborate cross-functionally with product, design, and leadership teams to deliver high-impact features.

Requirements:

7+ years of experience in full-stack software engineering.
Strong expertise in JavaScript and TypeScript.
Advanced experience with React (hooks, modern patterns, performance optimization).
Strong backend development experience with Node.js.
Experience designing REST and/or GraphQL APIs.
Strong knowledge of relational databases (PostgreSQL preferred), including query optimization and indexing.
Experience with caching systems such as Redis.
Familiarity with authentication patterns (JWT, OAuth, session management).
Experience with CI/CD pipelines and modern c