Job Description

Full-stack Engineer (Rust / System Performance)

We’re pushing computers beyond their limits
We’re building a platform that removes OS-level bloatand pushes Windows devices beyond their factory performance, extending lifespan, unlocking speed, and reducing global e-waste.

This isn’t another SaaS dashboard- This is system-level performance engineering— close to the OS, where small changes create massive impact.

Backed by 2.6M+ users through AtlasOS and 5,000+ daily downloads, we’re now turning this into a scalable SaaS platform across consumer and enterprise markets.

• We have distribution.

• We have demand.

• Now we’re building the product that scales it.

About eclean
eclean is a B2C & B2B IT optimization SaaS built to extend device lifespan and eliminate performance loss. Created by the team behind AtlasOS, we’re solving a real problem at global scale; slow devices, unnecessary hardware upgrades, and growing e-waste.

By pushing devices to perform better than when they were new, we help consumers, gamers, and enterprises save money while reducing environmental impact.

The role
We’re looking for a Full-stack Engineerwho wants to build something technically challenging and meaningful. You’ll work across Rust, Tauri, Svelte, and Go— shaping both the product and how performance is delivered at scale.

You’ll have real ownership

• Build features end-to-end

• Solve hard technical problems

• Make decisions that directly impact millions of users

What you’ll work on

• Build and evolve our desktop application using Rust + Tauri

• Develop high-performance UI with Svelte

• Work across the stack with our Go backend

• Identify and eliminate performance bottlenecks at system level

• Improve how software interacts with Windows internals

• Ship fast, iterate, and continuously improve real user experience

Tech stack; Rust · Tauri · Svelte · Go · Windows internals

Who this is for

• Enjoys working close to the OS layer

• Likes solving performance problems, not just building CRUD apps

• Prefers ownership over process

• Comfortable figuring things out independently

This role is not for

• Those who want clearly defined tasks and slow-moving environments

• Those who prefer abstraction over understanding system behavior

Requirements

• Strong experience with Rust and modern software development

• Experience with Svelte / Go / Tauriis a strong plus

• Excellent problem-solving and debugging skills

• Fluent in English

Nice to have:

• Experience with Windows APIs / system-level development

• Swedish
  

Why join now

• Proven distribution ( millions of users)

• Early-stage product with real traction

• High-impact technical challenges

• Opportunity to shape architecture and product early

This is a rare moment, before scale is fully unlocked, but after product-market demand is proven.

Engagement

• 6-month contractor role with strong potential to convert to full-time

• Fully remote ( Sweden preferred but can consider EU based)

• You are comfortable working as an independent contractor