Principal Rust Engineer - ML Infrastructure
Alignerr • Remote • Posted 0 days ago
Education
Any
Type
Pay Rate
$62.5/task
Posted
0d ago
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About this Role
What You'll Do
- Design, build, and optimize high-performance Rust systems supporting AI data pipelines and model evaluation workflows
- Develop full-stack tooling and backend services for large-scale data annotation, validation, and quality control
- Improve reliability, performance, and memory safety across existing production Rust codebases
- Collaborate with data, research, and engineering teams to accelerate model training and evaluation workflows
- Identify and resolve bottlenecks and edge cases in complex data and system behavior
- Participate in synchronous design reviews and contribute to high-impact architectural decisions
About the Role
What if your mastery of Rust could directly shape the infrastructure powering the next generation of AI models? We're looking for a Principal Rust Engineer to design and build high-performance systems at the heart of real AI research and production workflows — working alongside leading AI labs on the tools and pipelines that make cutting-edge AI possible. This is a fully remote, flexible contract role for an experienced Rust engineer who thrives on hard technical problems, cares deeply about performance and correctness, and wants their work to matter at scale.
- Organization: Alignerr
- Type: Hourly Contract
- Location: Remote
- Commitment: 20–40 hours/week
Who You Are
- Native or fluent English speaker with clear written and verbal communication skills
- 5+ years of professional experience writing production-grade Rust for data-intensive applications
- Deep expertise in memory management, ownership semantics, and zero-copy deserialization with minimal runtime overhead
- Proven experience integrating Rust with machine learning frameworks or columnar data standards to support model training workflows
- Able to commit 20–40 hours per week with reliable availability
- You write code that other senior engineers learn from — and you're proud of it
Nice to Have
- Prior experience with data annotation, data quality, or evaluation systems
- Familiarity with AI/ML workflows, model training pipelines, or benchmarking infrastructure
- Experience with distributed systems, developer tooling, or systems programming at scale
Why Join Us
- Work on real production systems for leading AI research labs — not toy problems
- Fully remote and flexible — work when and where you do your best thinking
- Freelance autonomy with the structure of meaningful, high-impact engineering work
- Contribute to infrastructure that directly shapes how next-generation AI models are built and evaluated
- Potential for ongoing work and contract extension as projects grow and evolve
Requirements
- Fluent proficiency in English (Written & Verbal)
- Reliable high-speed internet connection
- Bachelor's degree or equivalent professional experience
- Demonstrated expertise in Software Engineering
Eligible Languages
Fluent proficiency in English
Compensation Analysis
What if your mastery of Rust could directly shape the infrastructure powering the next generation of AI models? We're looking for a Principal Rust Engineer to design and build high-performance systems at the heart of real AI research and production workflows — working alongside leading AI labs on the tools and pipelines that make cutting-edge AI po
Skills & Categories
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Frequently Asked Questions
What is the assessment actually like?
Notoriously strict. Alignerr uses TestGorilla for role-specific timed tests — a blank coding environment for engineers, rigorous grammar and fact-checking for writers. There is almost no hand-holding. The critical catch: this is essentially a one-shot process. Fail or abandon the assessment, and you are typically locked out of that role permanently with no option to retake.
How quickly can I start earning after I pass?
Not immediately. Even after passing the assessment and completing identity verification (via Persona) and billing setup (via Deel), you may sit in a waiting pool for weeks or months. You only start earning when a project matching your specific skills launches and you are officially assigned. Do not plan around Alignerr income until you are actively on a project.
Is there a community?
Yes — and it is one of Alignerr's genuine strengths. Once assigned to a project, you are added to Slack channels where you can ask questions, get rubric clarifications from admins, and talk to other AI trainers. This is rare in AI training and makes a real difference when guidelines are ambiguous or change mid-project.
What does the work actually look like?
It is practical, hands-on data work. You might be recording short videos, categorizing images, rating text responses, or analyzing data. The tasks are designed to be short and distinct—typically 5-60 minutes per task.
How flexible is the schedule?
Extremely. This is true "log in and work" flexibility. You can usually work for 20 minutes or 4 hours depending on your availability. There are rarely minimum hour requirements, making it ideal for side income.
Is there an interview?
Usually, no. Hiring for these roles is almost entirely based on passing an automated assessment or "qualification" task. If you pass the test, you get access to the work.
What is the barrier to entry?
Alignerr is known for difficult technical assessments. You must pass a timed test in your specific domain (e.g., Python, Physics, or Language) before you are eligible for any paid projects.