Full-stack Engineer (Elixir, Phoenix LiveView, React)

MexicoDev; Helsinki; Hybrid; EUR 70,000 - 110,000; Full time

Job summary

Treat Health is building healthcare where the right care takes minutes, not days. We seek a Full-stack Engineer to own the stack across Elixir, Phoenix LiveView, React and TypeScript, collaborating with design and product to ship impactful features in a fast-moving environment.

Based in Helsinki and working onsite, you will work with Cloudflare, GCP, Rust, and mobile apps in Swift and Kotlin, with the team emphasizing end-to-end ownership and EU data privacy.

Qualifications

• Willing to work on site in Helsinki; no relocation or visa sponsorship.
• Experience across the full stack with Elixir, Phoenix LiveView, React.
• Proven ability to work end-to-end in a small, high-trust team.

Responsibilities

• Own end-to-end problems and influence what we build.
• Collaborate across planning, coding, and reviews to ship features.

Skills

Full-stack development

End-to-end ownership

Team collaboration

Tools

Elixir

Phoenix LiveView

React

TypeScript

Tailwind

GCP

Cloudflare

Rust

Swift

Kotlin

Job description

What the posting tells you

• Ownership · The hire will own a whole product area, system or major decisions end to end. “Small team, high trust: you own problems end to end, with real influence on what we build. Health data stays in the EU, every sign-in uses strong identification…”
• Specific responsibilities · Some concrete projects, systems or problems the hire will work on. “Stack: Elixir, Phoenix LiveView, React, TypeScript, Tailwind, GCP, Cloudflare and Rust, with Swift and Kotlin for our native mobile apps. Claude is part of ever…”
• Transparency · One of pay, hiring process or team is described. “Compensation, details and how to apply: https://treat.health/en/careers/full-stack-engineer/”
• Stated working conditions · Several working conditions are stated. “For now, working on site in Helsinki is a must, and we can’t offer relocation or visa support, so you need to already be able to work in Finland. We may hire re…”

Based only on the posting text; anything it does not mention is left unrated.

Original text

Visa sponsorship No “or now, working on site in Helsinki is a must, and we can't offer relocation or visa support, so you need to already be able to work in Finland.”

Work authorization Not stated

Treat Health | Full-stack Engineer (Elixir, Phoenix LiveView, React) | Helsinki, Finland | ONSITE | Full-time | Compensation in the link belowTreat Health is building healthcare where the right care takes minutes, not days. You describe your concern in your own words, our smart intake asks the follow-up questions a doctor would ask, and a licensed doctor reviews the whole picture and decides on the care. Prescriptions and records go straight to Kanta, Finland's national health archive. Right now, agentic frontend engineering and agentic mobile app development matter most to us. We expect you to work across the whole stack, with our assistance and tooling.Stack: Elixir, Phoenix LiveView, React, TypeScript, Tailwind, GCP, Cloudflare and Rust, with Swift and Kotlin for our native mobile apps. Claude is part of everyday work, from planning and coding to review. We care about how well you direct coding agents, not how fast you type. Small team, high trust: you own problems end to end, with real influence on what we build. Health data stays in the EU, every sign-in uses strong identification, and patient data never ends up in logs. For now, working on site in Helsinki is a must, and we can't offer relocation or visa support, so you need to already be able to work in Finland.