Senior Full-stack Engineer

Our Mission

Prose is truly custom hair and skin care made-to-order—just for you. Our line of custom products are made by an in‑house, Paris‑based R&D team of gifted chemists who combine natural ingredients in innovative ways alongside dermatologists, giving consumers clean skin care, hair care and impeccable results.

At the heart of Prose’s success is Singular, its proprietary AI-powered beauty-tech platform, which has revolutionized personalized beauty at scale. Marrying a technology-driven approach with an apothecary-style concept, all Prose hair and skin care products are personalized to your one‑of‑a‑kind hair, skin, goals and environment.

We’re a company that wants to change beauty practices, so we’re changing the way beauty companies practice. As a certified B Corporation, a Public Benefit Corporation and Climate Neutral, we’re proving that good business is always sustainable. With Prose, there’s nothing sacrificed to bring you great products—not trees, materials, wages, or performance.

Prose & Singular in Numbers

• Founded in 2017 , with hubs in Paris, New York, and Los Angeles

• 10M+ consultations completed

• 2M customers and 350K active subscribers

• 21M custom products made, with 1M+ unique formulas

• 350+ team members across disciplines

• $600M+ in lifetime sales, with $165M+ revenue in 2024

• Profitable since 2024

Discover our Company Culture on Welcome to the Jungle here

Discover our Company Mission & Vision in video here

Position Summary

Prose is seeking a Senior Full-stack Engineer to design, build, and ship the systems behind Singular, our proprietary platform. You’ll be part of our Tech organization that designs, builds, and delivers both platform capabilities and product features that power Prose’s personalized beauty experience — from the consultation and e-commerce journey to the manufacturing systems that turn every order into a physical, made-to-order product in our NYC and LA facilities.

We are a deliberately compact, senior engineering team. Every engineer owns a broad scope, ships to production continuously, and works with AI-augmented development practices as a core part of the craft. You’ll join at a moment where we’re evolving toward a modular architecture with clearly separated domains, and you’ll have a real voice in those design decisions.

Few engineering teams get to ship code that ends as a physical product formulated for one specific person. If you’re passionate about end-to-end ownership, technical excellence, and building with the best AI tooling available, we’d love to hear from you.

Key Responsibilities

• Build & Ship

• Architecture & Technical Direction

• Collaboration & Impact

Key Candidate Requirements

• 5+ years of professional software engineering experience, with significant time on both backend and frontend in production systems.

• Strong backend experience with Python, along with common libraries such as Django, Rest Framework, FastAPI.

• Solid modern frontend experience with React and the current JavaScript/TypeScript ecosystem.

• Deep understanding of fundamental design principles behind a scalable application.

• A knack for writing clean, readable, and maintainable code.

• Hands‑on AI fluency and a genuine interest in AI‑assisted engineering workflows.

• Comfortable with cloud‑native environments: GCP, Docker, CI/CD.

• Pragmatic mindset, knowing when to invest in perfection, and when to build a PoC.

• Autonomous on your scope: you own outcomes, elevate when needed, and don’t wait to be told what to do.

• Prior experience in B2C, e-commerce, manufacturing is a plus.

• Fluency in English is required.

Compensation & Benefits

Prose fosters inclusivity, learning, and diversity within our teams and workplace. Just as we celebrate unique beauty, every team member is encouraged to show up as their full self. In addition to creating an environment where all individuals feel welcome, we offer benefits that include:

Compensation

• Competitive base salary — 60.000–70.000€ based on experience

• Variable bonus up to 10% based on company and individual performance

• BSPCE program

Health & Wellness

• 100% coverage of health insurance and life/disability plan (including dependents)

• Access to CSE allowance

Lifestyle & Perks

• Standard French benefits: Swile meal vouchers, transport a