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Expert roles for frontier AI teams.
Technical specialists across RLHF and alignment, model evaluation and QA, AI safety and red teaming, engineering and data — with creative intelligence as a secondary offering. Every role carries a published hourly rate, with no sourcing fee.
Roles & Rates
25 expert roles across 5 technical domains.
Each card leads with the role and what the specialist actually does. The hourly rate is what you pay for hours worked — no sourcing fee, no mark-up.
RLHF Engineer
Builds and runs reinforcement learning from human feedback pipelines: reward modelling, preference data collection, grading rubrics, and post-training evaluation loops.
Remote · Contract · Full-time available
Human Feedback Expert
Produces the preference comparisons and written critiques that reward models learn from, working to your rubric with measured inter-reviewer agreement.
Remote · Contract · Flexible hours
Prompt Engineering Expert
Designs prompt suites, system instructions, and task taxonomies that surface real model behaviour instead of best-case demos.
Remote · Contract · Flexible hours
AI Model Evaluator
Grades model output against your rubric across reasoning, factuality, and instruction-following, with the written justification your training loop needs.
Remote · Contract · Flexible hours
AI QA Tester
Runs structured regression and behaviour testing across model releases, agent flows, and product surfaces, and files reproducible defects.
Remote · Contract · Full-time available
Code Reviewer
Reviews model-generated code for correctness, security, and idiom, and writes the corrected reference the model is scored against.
Remote · Contract · Flexible hours
AI Coding Specialist
Builds coding tasks, unit-tested benchmarks, and repository-scale problems that measure whether a model can actually ship working software.
Remote · Contract · Full-time available
AI Safety Specialist
Defines safety policy, builds refusal and over-refusal taxonomies, and measures model behaviour against your published safety commitments.
Remote · Contract · Flexible hours
Red Team Evaluator
Attacks the model on purpose: adversarial prompting, jailbreak discovery, hallucination probing, and robustness testing under distribution shift.
Remote · Contract · Project-based
AI Data Scientist
Owns dataset design, sampling strategy, contamination checks, and the analysis that tells you whether a training run actually moved the metric.
Remote · Contract · Full-time available
Programming Language Expert
Senior engineers in a single language who write reference solutions and grade model code on idiom and correctness — Python, TypeScript, JavaScript, Rust, Go, Java, and C++.
Remote · Contract · Flexible hours
Training Data Specialist
Curates, structures, and quality-controls training data at volume, with agreement scoring and an audit trail on every batch.
Remote · Contract · Flexible hours
CUDA & Kernel Engineer
Writes, profiles, and optimises GPU kernels so training and inference runs finish faster on the accelerators you already have.
Remote · Contract · Full-time available
Agent & Tooling Engineer
Builds Model Context Protocol servers, tool connectors, and evaluation harnesses that let agents reach real systems and be measured doing it.
Remote · Contract · Project-based
Creative AI Specialist
Directs generative image, video, and audio workflows end to end, and evaluates creative model output against a brief a client would actually sign off.
Remote · Contract · Project-based
Film Director
Directs branded film, commercial, and purpose-shot production, including capture designed as training data for video models.
Remote / On-set · Project-based
Cinematographer / DOP
Owns lighting design, camera package, and the visual language of the shoot, where footage quality shows up directly in the training set.
On-set · Day rate or project
Post-Production Lead
Runs the finishing pipeline end to end — edit, VFX, colour, sound, and delivery specs — across conventional and generative footage.
Remote · Contract · Project-based
Colorist
Grades commercial, film, and episodic work, delivering consistent looks across formats and mixed generative sources.
Remote · Contract · Project-based
VFX Artist
Compositing and 3D for clean-up, set extension, CG integration, and AI-assisted visual effects pipelines.
Remote · Contract · Project-based
Motion Graphics Artist
Produces title sequences, explainer animation, and brand systems in motion, including generative-assisted sequences.
Remote · Contract · Part-time friendly
Sound Designer
Builds effects, atmospheres, and full sonic identities for film, games, and audio model evaluation work.
Remote · Contract · Project-based
Audio Engineer
Records, mixes, and masters dialogue, voice-over, and music, including reference audio for speech and audio model training.
Remote · Contract · Flexible hours
Video Editor
Edits long-form, social, and performance content from story assembly through polished delivery.
Remote · Contract · Full-time available
Engagements are remote and hourly unless the role says otherwise. Rate bands reflect seniority, technical depth, and scope; the final rate is confirmed on your brief. Fradle provides technical AI expertise only — not general software contracting, cloud infrastructure, or DevOps.