Full-stack Engineer (Rust/System Performance)

Full-stack Engineer (Rust / System Performance)
We’re pushing computers beyond their limits
We’re building a platform that removes OS-level bloat and 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 Engineer who 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 / Tauri is 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