Senior Machine Learning Engineer
AlignerrAbout the role
Senior Machine Learning Engineer (AI Training)
About The Role
What if your deep expertise in machine learning could directly shape how the next generation of AI systems reason, plan, and make decisions? We're looking for Senior Machine Learning Engineers to author high-fidelity reasoning traces that teach large language models how to think — step by step, tool by tool, decision by decision.
This isn't a traditional ML role. You'll work at the frontier of AI development, translating your hard-won technical intuition into structured data that makes AI smarter, more reliable, and more capable in the real world.
This is a fully remote, flexible contract role — work on your schedule, at your pace.
Organization: Alignerr
Type: Hourly Contract
Location: Remote
Commitment: 10–40 hours/week
What You'll Do
Author complex, high-fidelity reasoning traces that capture how an LLM should plan, use tools, and make decisions when solving real technical tasks
Decompose sophisticated ML problems into clear, logical, well-documented step-by-step solutions
Design and implement data strategies that train LLMs to navigate intricate, real-world decision-making scenarios
Review and provide expert-level feedback on reasoning traces produced by other contributors
Ensure traces reflect sound architectural thinking, rigorous logic, and best practices in model reasoning
Work across a variety of advanced technical tasks spanning ML engineering, model evaluation, and system design
Who You Are
Seasoned ML practitioner with significant hands-on experience in machine learning, deep learning, or a closely related technical field
Skilled at breaking down complex, multi-step problems into clear and logical structures — you think in systems and document with precision
Familiar with LLM architectures, training methodologies, and evaluation frameworks
A strong written communicator who can articulate technical reasoning clearly and concisely
Self-directed and dependable — you produce quality work independently without needing hand-holding
Nice to Have
Prior experience in data annotation, data quality assurance, or AI evaluation pipelines
Top-tier Kaggle competition results (Grandmaster or Master level) demonstrating elite-level model performance and feature engineering
Experience contributing to LLM fine-tuning, RLHF, or other alignment-adjacent workflows
Background in AI research or applied ML in production environments
Why Join Us
Work directly with teams building some of the most advanced AI models in the world
Fully remote and asynchronous — work when it suits you, from wherever you are
Freelance autonomy with the structure of meaningful, high-impact technical work
Get rare, hands-on exposure to how frontier LLMs are trained and shaped at the data level
Collaborate with a global community of expert contributors across AI and ML
Potential for ongoing work and contract extension as new projects launch
Responsibilities
- Author complex, high-fidelity reasoning traces for LLMs
- Decompose sophisticated ML problems into clear solutions
- Design and implement data strategies for LLM training
- Review and provide feedback on reasoning traces
- Ensure traces reflect sound architectural thinking and best practices
- Work across advanced technical tasks in ML engineering and system design
Qualifications
- Significant hands-on experience in machine learning or deep learning
- Skilled at breaking down complex problems into logical structures
- Familiar with LLM architectures and training methodologies
- Strong written communication skills
- Self-directed and dependable
Benefits
- Fully remote and asynchronous work
- Freelance autonomy with meaningful technical work
- Exposure to advanced AI model training
- Collaboration with a global community of experts
- Potential for ongoing work and contract extension
Skills mentioned
About Alignerr
We're looking for experts to help train better AI. At Alignerr, we offer paid, flexible projects for writers, coders, and subject matter experts to refine and align advanced artificial intelligence. Work when you want, where you want. Apply today at Alignerr.com or through our open Job Postings.