Is this job worth applying to?

Pay

Below typicalTops out at $75/hr. The typical top rate across 237 priced coding listings is $90/hr.

Getting in

Hard to get in~1–2 hours of assessments. Valid government photo ID.

Steady work

Work is patchyFeast-or-famine project volume.

Payout record

Some delaysSchedule: weekly, by Friday for the prior Monday–Sunday. Paid via Stripe or PayPal (depends on country).

Freshness

RecentPosted 11d ago. Still listed on Alignerr on Nov 6, 2026.

Where you live

Named countries onlyOpen in United States.

The job description

About the Role

What if your systems programming expertise could directly shape the infrastructure behind some of the world's most advanced AI models? We're looking for a Senior Rust Engineer to build and optimize the high-performance data pipelines, annotation tooling, and evaluation systems that leading AI labs depend on to train and improve next-generation models.

This is a fully remote contract role with serious technical depth. You'll be working on real production systems — not toy projects — alongside research and engineering teams at the frontier of AI development.

What You'll Do

Design, build, and optimize high-performance systems in Rust that power AI data pipelines and evaluation workflows
Develop backend services and tooling for large-scale data annotation, validation, and quality control
Improve reliability, performance, and memory safety across existing Rust codebases
Collaborate with data, research, and engineering teams to support model training and evaluation workflows
Identify bottlenecks and edge cases in data and system behavior — then implement scalable, production-ready fixes
Participate in synchronous design reviews to iterate on architecture and implementation decisions

Who You Are

5+ years of professional experience writing production-grade Rust
Strong systems programming foundation — you think carefully about performance, concurrency, and memory safety
Proven experience building backend services, developer tooling, or data pipelines
Clear, direct communicator — written and verbal — comfortable working across technical and research teams
Able to commit 20–40 hours per week with consistency and reliability

Nice to Have

Prior experience with data annotation systems, data quality pipelines, or model evaluation infrastructure
Familiarity with AI/ML workflows, model training, or benchmarking pipelines
Experience with distributed systems design or developer tooling at scale
Exposure to Go, Python, or C++ in a systems context

Why Join Us

Work directly with leading AI labs on real, production-grade infrastructure that matters
Fully remote — work from anywhere, on a schedule that fits your life
Freelance autonomy with the structure and focus of high-impact, technically challenging work
Contribute to systems that shape how the world's most advanced AI models are built and evaluated
Potential for ongoing engagement and expanded scope as projects grow

How do you apply to Alignerr?

Apply on Alignerr

The Apply button opens this post on Alignerr's own site. You apply with them, not with Rubric. Budget about 1–2 hours of assessments.

Get through screening

What Alignerr asks for after you apply:

Take the TestGorilla skills assessment (usually one attempt per role)
Verify your identity with Persona
Join the Alignerr Slack community
Set up payouts once you are assigned to a project

Start work and get paid

Pay schedule: weekly, by Friday for the prior Monday–Sunday. Paid via Stripe or PayPal (depends on country). You're paid for the work they hand out, not a fixed salary.

Alignerr also needs

Valid government photo ID
Degree or professional experience for expert roles
Webcam for proctored assessments on some roles

Red flags

Red flagLong gaps with no project after passing
Red flagWorker reports of delayed or withheld payments on Glassdoor

What is Alignerr like to work for?

Labelbox's contractor network, which hires generalists and domain experts to label data and write and grade AI training tasks.

Advertised pay	$15–150/hr
Getting in	Hard to get in
Application takes	~1–2 hours of assessments
How you get paid	Weekly, by Friday for the prior Monday–Sunday, via Stripe or PayPal (depends on country)
Payout record	Some delays
Countries	Accepts most countries but blocks signups from about two dozen; posts India-specific roles such as Hindi, Telugu and Indian-English language and cultural review work.

Generalist and bilingual work is around $15–20/hr, coding QA $30–40/hr, and senior software, advanced math, medical and law roles $70–150/hr; some projects pay per approved task.