Senior Client-Side Frontend / Production Readiness Consultant Hands on

Looking for a Senior Client-Side Frontend / Production Readiness Consultant

Project-based / Freelance

Israel-based only

Hebrew required

Immediate availability preferred

We are looking for a senior frontend developer / consultant to help review, stabilize, and prepare an existing browser-based product for pilot launch.

The product is client-side heavy and includes complex browser-based media, video rendering, recording, preview, export, sharing, and mobile flows.

The most critical focus is stabilizing the browser-based video recording and media flow on mobile, especially iPhone / iOS Safari, before pilot launch.

This includes:

• Recording reliability

• Video rendering and playback stability

• iPhone / iOS Safari behavior

• Browser performance and memory limitations

• Mobile sharing / export flows

• Cross-browser and mobile web issues

• Real-world pilot readiness

We are not looking to rebuild the product from scratch.

This role is not suitable for a junior or intermediate developer. We are looking for senior-level judgment, real production experience, and the ability to identify risks before they become problems in live usage.

The ideal person can combine hands-on technical review with clear architectural thinking — someone who can challenge assumptions, understand what may break under real user conditions, and provide a practical technical assessment before launch.

Relevant experience:

• React / Next.js / TypeScript

• Deep frontend debugging and performance optimization

• Complex client-side web applications

• Mobile web and iOS Safari debugging

• Browser-based media, video, canvas, rendering, recording, or export flows — strong advantage

• MVP-to-pilot or production stabilization experience — strong advantage

If relevant, please apply through this LinkedIn job post.

Please include specific experience related to frontend production stabilization, iOS Safari / mobile browser issues, and browser-based media, video, recording, or rendering flows.