AlignerrCoding & software eval
Data Infrastructure Engineer (Rust) - High Performance Computing
up to $75/hr
About this role, in Alignerr's words
What if your deep expertise in Rust could directly shape the infrastructure powering the world's most advanced AI systems? We're looking for a Senior Rust Full-Stack Engineer to design and build the high-performance data pipelines, annotation tooling, and evaluation systems that leading AI labs depend on.
What you'll do
- Design, build, and optimize high-performance Rust systems supporting large-scale AI data pipelines and evaluation workflows
- Develop full-stack tooling and backend services for data annotation, validation, and quality control at scale
- Hunt down and eliminate bottlenecks — profiling, identifying edge cases, and implementing durable, scalable fixes
Show all 6 itemsHide the other 3 in What you'll do
- Improve reliability, safety, and performance across production Rust codebases
- Collaborate with data, research, and engineering teams to support model training and evaluation pipelines
- Participate in synchronous design reviews to iterate on architecture and implementation decisions
Candidate background
Who You Are
- 5+ years of professional, production Rust experience — this is a must
- Deep expertise in data parallelism and concurrency patterns to maximize CPU saturation
- Strong command of memory layout, SIMD optimizations, and heap allocation strategies — you know how to find and fix performance bottlenecks
- Native or fluent English speaker with clear written and verbal communication skills
- Able to commit 20–40 hours per week with reliable availability
- Self-directed and confident making high-impact engineering decisions independently
Nice to Have
Show all 4 itemsHide these 4 items in Nice to Have
- Prior experience with data annotation pipelines, data quality systems, or model evaluation infrastructure
- Familiarity with AI/ML workflows, model training, or benchmarking pipelines
- Experience building distributed systems or developer tooling
- Background working with or alongside research engineering teams
Quoted from selected sections of Alignerr's posting. The full posting may state other conditions. Read the full posting
A closer look
More context, when you need it.
Full job descriptionThe original posting, in Alignerr's words
Posted by Alignerr, reproduced here so you can judge the role before clicking. Original posting ↗
Senior Rust Engineer — AI Data Infrastructure
About the Role
What if your deep expertise in Rust could directly shape the infrastructure powering the world's most advanced AI systems? We're looking for a Senior Rust Full-Stack Engineer to design and build the high-performance data pipelines, annotation tooling, and evaluation systems that leading AI labs depend on.
This is a fully remote, flexible contract role for elite engineers who care about correctness, performance, and building systems that actually scale. If you've spent years thinking about memory layouts, concurrency patterns, and squeezing every cycle out of production systems — this is the role for you.
- Organization: Alignerr - Type: Hourly Contract - Location: Remote - Commitment: 20–40 hours/week
What You'll Do
* Design, build, and optimize high-performance Rust systems supporting large-scale AI data pipelines and evaluation workflows * Develop full-stack tooling and backend services for data annotation, validation, and quality control at scale * Hunt down and eliminate bottlenecks — profiling, identifying edge cases, and implementing durable, scalable fixes * Improve reliability, safety, and performance across production Rust codebases * Collaborate with data, research, and engineering teams to support model training and evaluation pipelines * Participate in synchronous design reviews to iterate on architecture and implementation decisions
Who You Are
* 5+ years of professional, production Rust experience — this is a must * Deep expertise in data parallelism and concurrency patterns to maximize CPU saturation * Strong command of memory layout, SIMD optimizations, and heap allocation strategies — you know how to find and fix performance bottlenecks * Native or fluent English speaker with clear written and verbal communication skills * Able to commit 20–40 hours per week with reliable availability * Self-directed and confident making high-impact engineering decisions independently
Nice to Have
* Prior experience with data annotation pipelines, data quality systems, or model evaluation infrastructure * Familiarity with AI/ML workflows, model training, or benchmarking pipelines * Experience building distributed systems or developer tooling * Background working with or alongside research engineering teams
Why Join Us
* Work on production systems that directly power cutting-edge AI research and development * Fully remote and flexible — structure your week around your best working hours * Freelance autonomy with the depth and impact of meaningful, high-complexity engineering work * Collaborate with world-class engineers and researchers at leading AI labs * Potential for ongoing work and contract extension across new projects as they launch
Working with AlignerrPay, getting started and work, from Alignerr's own pages
What the platform publishes in general. These are not extra terms confirmed for this particular role.
- Getting paid
- Billed weekly, Monday to Sunday, with approved work paid by the following Friday, according to Labelbox's help center. Payment goes through Stripe Connect or PayPal depending on your location, with one provider per country. intercom.help/labelbox/en/articles/13600616-alignerr-paym..., alignerr.com/process
- Before your first paid task
- Sign up, apply, verify your identity, set up billing and onboard. Some jobs add a Zara AI interview or domain assessments. alignerr.com/process
- How much work
- Time to your first project depends on demand and your skills, and there is no minimum number of hours. alignerr.com/faqs
- Contract
- Independent contractor, under terms with ALIGNERR LLC. alignerr.com/faqs, alignerr.com/privacy
Read on the pages linked above on 24 Sep 2026. Platforms change these terms, so check the linked page before you rely on one.
How does the pay compare?Across Coding & software eval roles, not this role alone
From our own daily reads of every open listing on the platforms we follow, not from Alignerr's posting. How we count.
Pay across the field: Coding & software eval
Across 391 roles in this field with a stated hourly rate in US dollars, on 14 platforms, the middle half pays $65 to $120 an hour at the top of the range, and the median is $95. This role's top rate, $75, is in the middle half. Of the 140 distinct rates we count, 44 are lower and 92 are higher.
| Platform | Roles | Top of range, per hour |
|---|---|---|
| Alignerr (this platform) | 136 | $50 to $400 · median $100 |
| micro1 | 44 | $60 to $350 · median $120 |
| Handshake AI | 43 | $47 to $125 · median $80 |
| Meridial (Invisible) | 34 | $22 to $150 · median $60 |
| Mercor | 33 | $60 to $200 · median $105 |
Sources and listing historyWhere this information comes from
This listing's history
- First seen here on 27 Aug 2026, and still on Alignerr's list when we last read it on 13 Oct 2026.
- The listed pay has not changed since then.
- Posted by Alignerr
- First seen by AIPayList
- Last seen live
- Listing ID
- 197b603f-7dd4-4170-be53-b33f18a30fc8
Pay as the source states it: “$50-75/hr”.
Platforms sometimes change a rate after posting. Every listing here is re-read at least once a day and corrected when its source moves, so a difference you see on the platform is usually a change made since the last read. How freshness works.
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