Full-Time

Senior Backend Engineer

Node.js

Fabulous

Fabulous

51-200 employees

Behavioral science-based habit-building app

No salary listed

Île-de-France, France + 1 more

More locations: Remote in France

Remote

Category
Software Engineering (1)
Required Skills
Kotlin
Software Testing
Node.js
Microservices
REST APIs
Google Cloud Platform

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Requirements
  • Strong coding skills with Node.js, ESLint, unit testing, and end-to-end testing.
  • Experience developing, releasing, and maintaining a modern API layer.
  • Experience with object-oriented languages; Kotlin is preferred.
  • Experience with event-driven microservice architecture inside the Google Cloud ecosystem.
Responsibilities
  • Architect services using well-accepted patterns to enable autonomous development and future scaling.
  • Build innovative new features, including marketing optimization engines and billing reporting, while working closely with the CTO.
Desired Qualifications
  • Experience with Kotlin.

1) What it does: Fabulous is a wellness app that helps people build healthy habits and reach personal goals using principles from behavioral science. It serves a broad audience, including people who want self-improvement and those managing ADHD, and it operates on a subscription model with coaching, resources, and on-demand programs. 2) How it works: The app uses scientifically grounded methods to guide habit formation, offering personalized coaching sessions, a library of resources, and 24/7 access to on-demand series. Different subscription tiers give varying levels of access and support. 3) How it’s different: It combines an evidence-based approach with real-time coaching and a structured habit framework, setting it apart from generic self-help apps by delivering tailored coaching and resources built on behavioral science. 4) Goal: Its aim is to help people form lasting habits and achieve their personal goals by providing structured routines, practical guidance, and ongoing support.

Company Size

51-200

Company Stage

N/A

Total Funding

N/A

Headquarters

Paris, France

Founded

2013

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Simplify Jobs

Simplify's Take

What believers are saying

  • Fabulous claims 37 million users and over 30 million on its July 2026 site.
  • July 2026 ADHD planners and routine builders target a growing neurodivergent segment.
  • App Store updates through July 2026 show active maintenance and monetization strength.

What critics are saying

  • Fabulous lacks ADHD-specific focus rivals like Inflow and Focus Bear in 2026.
  • Premium gating leaves free users with thin utility, fueling billing complaints and churn.
  • Habit trackers with stricter enforcement, like Tiimo and Focus Bear, steal ADHD users.

What makes Fabulous unique

  • Duke-incubated behavioral science still anchors Fabulous's habit system in July 2026.
  • The app combines coached routines, stacked micro-rituals, and run-mode execution.
  • HabitatZero extends Fabulous into desktop planning, widening the product surface.

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Benefits

Flexible Work Hours

Remote Work Options