Frontend/Fullstack Developer

Consultant; Stockholms kommun; On-site; SEK 600,000 - 750,000; Full time

Job summary

Consultant is seeking a Frontend/Fullstack Engineer to join their growth team in Stockholm, working on onboarding and activation strategies. This role requires strong skills in React, TypeScript, HTML, and CSS, along with backend development experience in Python, Go, or Kotlin.

The ideal candidate will enhance user experiences through personalized, data-driven strategies and contribute to full-stack product development. On-site work is required 4 days a week.

Qualifications

• 4+ years of experience with React, TypeScript, HTML, and CSS.
• Experience with backend development (Python, Go, or Kotlin).
• Proven experience in full‑stack product development.
• Experience working with experimentation, tracking, and data‑driven development.

Responsibilities

• Build onboarding flows, nudges, and interactive UI components.
• Work fullstack with React/TypeScript and backend in Python, Go, or Kotlin.
• Drive A/B testing and experimentation within a growth context.
• Develop solutions based on user signals and behavior.

Skills

React

TypeScript

HTML

CSS

Python

Go

Kotlin

A/B testing

Data-driven development

UI components

Tools

Optimizely

Mixpanel

Looker

GCP

Contentful

Job description

emagine is looking for a Frontend/Fullstack Engineer to join a growth/activation team. Start: mid-August 2026; End: December 31, 2026. Location: Required to be on‑site 4 days per week in Stockholm.

About the role

You will join a team focused on a critical stage of the user journey – onboarding and activation. The goal is to improve how new users discover value through personalized, data‑driven experiences and fast iteration cycles.

This is a hands‑on role with both frontend and backend responsibilities, with a strong focus on delivering user impact.

Key responsibilities

• Build onboarding flows, nudges, and interactive UI components
• Work fullstack with React/TypeScript and backend in Python, Go, or Kotlin
• Drive A/B testing and experimentation within a growth context
• Develop solutions based on user signals and behavior
• Ensure system reliability and observability
• Leverage AI‑assisted development workflows

Requirements

4+ years of experience with React, TypeScript, HTML, and CSS; experience with backend development (Python, Go, or Kotlin); proven experience in full‑stack product development; experience working with experimentation, tracking, and data‑driven development; strong ownership mindset and ability to drive work forward.

Nice to have

• Strong frontend architecture and performance optimization experience
• Experience with server‑side rendering
• Experience with GCP and Contentful
• Familiarity with tools like Optimizely, Mixpanel, Looker