Fullstack Engineer (JS, Java) – Remote

Replika; Paris; À distance; EUR 60 000 - 80 000; Plein temps

Résumé du poste

A leading AI company in Paris seeks a Fullstack Marketing Engineer to create seamless marketing experiences. The ideal candidate has proficiency in JavaScript, TypeScript, and backend experience in Java or Scala. You'll collaborate closely with teams to enhance user journeys and integrate marketing tools, contributing to projects that impact millions globally. Competitive compensation and flexible work arrangements offered.

Prestations

Competitive compensation

Flexible work arrangements

Opportunities for professional growth

Qualifications

• At least 3 years of frontend development experience.
• Proven experience integrating marketing tools.
• Excellent communication skills in English.

Responsabilités

• Develop and maintain marketing web applications and landing pages.
• Build and optimize integrations with marketing tools and platforms.
• Contribute to backend systems supporting data pipelines and APIs.

Connaissances

JavaScript

TypeScript

CSS

React or Vue

Java or Scala or Kotlin

Google Analytics

Segment

HubSpot

Braze

Outils

Git

Cloud platforms

Description du poste

An AI companion who is eager to learn and would love to see the world through your eyes. Replika is always ready to chat when you need an empathetic friend.

About Replika

Replika is an AI companion loved by 35M+ users around the world. We’re redefining what it means to connect with technology — emotionally, intelligently, and personally. From mobile to VR, we’re building an experience that feels less like software and more like someone who gets you.

We’re scaling fast and taking on bold challenges to become the most human AI on the planet.

About the Role

We are looking for a Fullstack Marketing Engineer with a passion for building seamless marketing experiences and the technical skills to connect our brand with millions of users. You will work closely with growth, product, and engineering teams to deliver high-impact marketing solutions, optimize user journeys, and integrate best-in-class marketing tools.

Responsibilities

• Develop and maintain marketing web applications and landing pages using modern frontend technologies (JavaScript, TypeScript, CSS).
• Build and optimize integrations with marketing tools and platforms (e.g., analytics, CRM, A / B testing, attribution, automation, Facebook Pixel, Google Ads, Appsflyer, Conversion tools).
• Contribute to backend systems using Scala, supporting data pipelines, APIs, and marketing automation workflows.
• Work within the Growth team to implement features that drive user acquisition and engagement.
• Ensure high performance, accessibility, and responsive design across all marketing touchpoints.
• Monitor, analyze, and improve site performance and conversion metrics.
• Maintain code quality through reviews, testing, and documentation.
• Stay current with marketing technology trends and recommend new tools or approaches.

Requirements

At least 3 years of frontend development experience : Expert in JavaScript, TypeScript, CSS, and modern frameworks such as React or Vue.

At least 3 years of backend experience : Java, Scala or Kotlin.

Proven experience integrating marketing tools : Hands-on familiarity with platforms such as Google Analytics, Segment, HubSpot, Braze, or similar marketing technologies.

Strong understanding of web performance, SEO, and accessibility best practices.

Experience with version control systems, preferably Git.

Ability to thrive in a fast-paced, cross-functional, and remote environment.

Excellent communication skills in English.

Nice to Have

Experience with server-side rendering and static site generators.

Familiarity with cloud platforms and CI / CD pipelines.

Prior experience in a SaaS or consumer technology company.

Understanding of marketing concepts such as conversion optimization, attribution modeling, and user segmentation.

Why Join Us?

Be part of a collaborative and innovative team redefining the future of AI companionship.

Work on projects that directly impact millions of users worldwide.

Competitive compensation, flexible work arrangements, and opportunities for professional growth.