Founding Fullstack Engineer — AI-Driven Multiplayer

halcy; Stockholms kommun; Hybrid; SEK 900,000 - 1,300,000; Full time

Benefits offered by this job

Equity

Hybrid in Stockholm

Job summary

halcy seeks a skilled fullstack engineer to craft a multiplayer agentic layer and ship features end-to-end weekly. You will own frontend and mobile integration, from UI to serverless edge functions, ensuring compatibility with frozen TestFlight builds and robust analytics.

You’ll work with a React/TypeScript stack, Tailwind, Postgres and Supabase, building for iOS/Android via Capacitor or React Native, including store submissions and release processes. Hybrid in Stockholm, with equity on offer.

Qualifications

• Proficient in React and TypeScript with production experience.
• Strong experience with Postgres or equivalent databases.
• Knowledge of modern frontend tooling and Tailwind for UI.
• Mobile app development for iOS/Android (Capacitor/React Native) including app store processes.

Responsibilities

• Build multiplayer, agentic features end-to-end and ship weekly across schema, edge function, UI and analytics.
• Work with agents and define the rules, commands and routines they run.
• Address migrations and ensure compatibility with existing builds while delivering value quickly.

Skills

React

TypeScript

Tailwind

PostgreSQL

Supabase edge functions

Mobile development

React Native

Tools

Capacitor

TestFlight

Store submissions

Job description

halcy seeks a skilled fullstack engineer to craft a multiplayer agentic layer and ship features end-to-end weekly. You will own frontend and mobile integration, from UI to serverless edge functions, ensuring compatibility with frozen TestFlight builds and robust analytics.

You’ll work with a React/TypeScript stack, Tailwind, Postgres and Supabase, building for iOS/Android via Capacitor or React Native, including store submissions and release processes. Hybrid in Stockholm, with equity on offer.