Alignerr

Backend & Tooling Engineer (Rust)

  • Kind of work: Coding
  • Location: Remote, countries not stated
  • Experience: Expert
  • Hours: Flexible
  • Languages: English

$50–75/hr

Remote coding contract with Alignerr, $50–75/hr. Posted Oct 23.

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 2w ago. Still listed on Alignerr on Nov 6, 2026.
Where you live
Not statedThe listing names no country.

The job description

About the Role

What if your Rust expertise could directly shape the infrastructure powering the next generation of AI? We're looking for a Senior Rust Engineer to build the data pipelines, annotation tooling, and evaluation systems that leading AI labs depend on to train and benchmark their most advanced models.

This is high-impact, production-grade work — not toy projects or throwaway scripts. You'll be embedded in real engineering workflows, solving hard systems problems alongside data, research, and engineering teams at the frontier of AI development.

What You'll Do

  • Design, build, and optimize high-performance systems in Rust powering AI data pipelines and evaluation workflows
  • Develop full-stack backend services and CLI tooling for large-scale data annotation, validation, and quality control
  • Improve reliability, safety, and performance across production 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, well-reasoned fixes
  • Participate in synchronous design and code reviews to iterate on architecture and implementation decisions

Who You Are

  • Native or fluent English speaker with strong written and verbal communication skills
  • 5+ years of professional experience writing production Rust — you know the language deeply, not just the basics
  • Proven track record building high-performance backend web services and robust, user-friendly CLI tools
  • Experienced with type-safe database interactions and connection pooling for large-scale data workloads
  • Able to commit 20–40 hours per week with reliability and focus
  • Self-directed and comfortable working asynchronously across a remote team

Nice to Have

  • Prior experience with data annotation, data quality pipelines, or model evaluation systems
  • Familiarity with AI/ML workflows, model training, or benchmarking infrastructure
  • Background in distributed systems or developer tooling
  • Experience contributing to or maintaining open-source Rust projects

Why Join Us

  • Work on real production systems at the cutting edge of AI development
  • Collaborate directly with leading AI research labs on high-stakes infrastructure
  • Fully remote and async-friendly — work from wherever you do your best work
  • Freelance autonomy with meaningful, technically challenging work
  • Potential for ongoing engagement and expanded scope as projects evolve

How do you apply to Alignerr?

  1. 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.

  2. 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
  3. 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 inHard to get in
Application takes~1–2 hours of assessments
How you get paidWeekly, by Friday for the prior Monday–Sunday, via Stripe or PayPal (depends on country)
Payout recordSome delays
CountriesAccepts 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.

$50–75/hrAdvertised payApply on Alignerr