Is this job worth applying to?

Pay

Above typicalTops out at $150/hr. The typical top rate across 47 priced math 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

Not statedThe listing names no country.

The job description

About the Role

What if your deep mathematical training could directly shape how AI reasons, verifies, and understands formal logic? We're looking for expert mathematicians to translate advanced human-written proofs into machine-verifiable formalizations — working at the exact boundary of what modern proof assistants can and cannot yet do.

This is a fully remote, flexible contract role built for mathematicians who are passionate about rigorous proof construction and formal verification. If you find satisfaction in taking a dense, elegant argument and expressing it with the precision a machine can verify, this role was made for you.

What You'll Do

Translate informal mathematical proofs into Lean (and related proof systems) with a focus on clarity, structure, and correctness
Analyze proofs across domains — identifying gaps, hidden assumptions, and formalizable sub-structures
Construct formalizations that push the limits of existing proof assistants, especially where automation breaks down
Collaborate with researchers to design and refine strategies for improving formal verification pipelines
Develop clean, readable, and reproducible proof scripts aligned with mathematical best practices
Provide expert guidance on proof decomposition, lemma selection, and structuring techniques for formal models
Investigate and articulate why automated provers fail on specific problems — complexity, missing lemmas, insufficient libraries, or otherwise

Who You Are

Hold a Master's degree or higher in Mathematics, Logic, Theoretical Computer Science, or a closely related field
Deeply fluent in rigorous proof writing across areas such as algebra, analysis, topology, logic, or discrete mathematics
Have hands-on experience with Lean (Lean 3 or Lean 4) — or comparable systems like Coq, Isabelle/HOL, or Agda — with Lean strongly preferred
Genuinely enthusiastic about formal verification, proof assistants, and the future of mechanized mathematics
Able to translate informal arguments into well-structured, machine-verifiable proofs with minimal scaffolding

Nice to Have

Familiarity with type theory, the Curry–Howard correspondence, and proof automation tools
Experience contributing to large-scale formalization projects such as mathlib
Exposure to theorem proving contexts where automated reasoning frequently requires manual intervention
Strong communication skills for explaining formalization decisions, edge cases, and proof strategies to collaborators

Sample Tasks

Formalize classical proofs and compare machine-verifiable structures against textbook arguments
Identify where automated provers break down and document why — feeding directly into AI research
Create Lean proofs that surface deeper patterns or generalizations implicit in the original mathematics

Why Join Us

Work at the frontier of AI research alongside leading labs advancing model reasoning and reliability
Fully remote and asynchronous — work when and where it suits you
Freelance autonomy with the structure of meaningful, high-impact technical work
Your expertise directly shapes the next generation of AI formal reasoning capabilities
Potential for ongoing work and contract extension as new projects launch

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.