Senior Full-Stack Engineer | AI-Powered Health Tech Growth

Simple Life App; España; Hybrid; EUR 90,000 - 130,000; Full time

Benefits offered by this job

Remote and hybrid work opportunities

Stock options

Equipment provided

SIMPLE subscription

21 days annual leave

Flexible hours

Job summary

Simple Life App in Spain is seeking a senior, product-minded engineer to join our technical marketing team and build web products, growth tools, integrations, and automation.

You’ll own initiatives end to end—from gathering requirements and researching solutions to shaping the UX, defining an MVP, designing the architecture, and shipping to production. We value ownership, strong engineering judgment, and effective AI tooling across stacks.

Qualifications

• 5+ years of professional software development with product ownership.
• Hands-on backend and frontend experience across modern stacks.
• Strong system design and API integrations.
• Experience with AI coding agents and automation workflows.

Responsibilities

• Own initiatives from requirements to MVP and production delivery.
• Build web apps, APIs, automation, and internal tools using Node.js, Python, or Go.
• Design user flows and prototype interfaces for intuitive products.
• Make architectural decisions balancing speed, reliability, and maintainability.
• Collaborate with marketing, product, and design; manage testing and releases after launch.

Skills

5+ years software development

Node.js/TypeScript

Python

Go

Frontend development

React/Vue

AI coding agents

SQL & databases

Git & CI/CD

Cloud infrastructure

English communication

Tools

Git

CI/CD pipelines

AWS/GCP/Azure

Job description

Simple Life App in Spain is seeking a senior, product-minded engineer to join our technical marketing team and build web products, growth tools, integrations, and automation.

You’ll own initiatives end to end—from gathering requirements and researching solutions to shaping the UX, defining an MVP, designing the architecture, and shipping to production. We value ownership, strong engineering judgment, and effective AI tooling across stacks.