Product-Impact Full-Stack Engineer (Go/React/Flutter)

Jack & Jill; San Francisco (CA); On-site; USD 200,000 - 300,000; Full time

Job summary

Jack & Jill is seeking an Engineering Generalist – Product Impact (Full Stack) to own end-to-end features from instrumentation to UI. You’ll work across a modern stack including React, Go, and Flutter to ship user-facing capabilities that influence growth and retention.

The role is ideal for a generalist who values business outcomes over just code, thrives in a fast-paced startup, and takes ownership of solving complex problems with measurable impact.

Qualifications

• 6 years of professional experience shipping production software.
• Strong full-stack fundamentals with a product-first mindset.
• Owns features from conception to metrics-driven outcomes.

Responsibilities

• Build and ship end-to-end features using React, TypeScript, Go, and Flutter across the stack.
• Run experiments to improve activation and retention of users.
• Harden backend services and optimize performance for reliable UX.

Skills

Full-stack fundamentals

Product-minded

Ownership

Tools

React

Go

Flutter

TypeScript

Job description

Jack & Jill is seeking an Engineering Generalist – Product Impact (Full Stack) to own end-to-end features from instrumentation to UI. You’ll work across a modern stack including React, Go, and Flutter to ship user-facing capabilities that influence growth and retention.

The role is ideal for a generalist who values business outcomes over just code, thrives in a fast-paced startup, and takes ownership of solving complex problems with measurable impact.