Remote STEM Engineer (India) — AI/ML Data Operations

About The Role

Remote STEM Jobs in India at Rex.zone focus on applied engineering work that supports AI/ML training pipelines, including data labeling, RLHF evaluation, prompt evaluation, and QA evaluation for large language models. You will collaborate with globally distributed teams to produce high-quality training data and improve model performance across NLP, computer vision, and content safety labeling workflows.

Key Responsibilities

* Design and execute annotation and evaluation workflows for NLP, computer vision, and multimodal tasks

* Implement RLHF and prompt evaluation protocols using well-defined rubrics and calibration

* Define and enforce annotation guidelines compliance; maintain edge-case documentation

* Run QA evaluation audits, spot checks, inter-annotator agreement analysis, and error taxonomy tracking

* Curate datasets for named entity recognition, classification, ranking, summarization, and safety policy adherence

* Use Python and data tooling to automate checks, sampling plans, reporting, and quality metrics

Required Qualifications

* Mid-senior STEM/engineering background (CS, EE, math, physics, statistics, or related)

* Strong Python skills; comfort with structured and unstructured data

* Practical understanding of LLM evaluation, data labeling, and QA evaluation concepts

* Experience with NLP tasks (e.g., NER, text classification, relevance ranking, summarization)

* Ability to interpret guidelines, resolve ambiguity, and communicate asynchronously in a remote setting

Preferred Qualifications

* Experience with RLHF pipelines, preference ranking, or rubric-based evaluation

* Familiarity with computer vision annotation (bounding boxes, polygons, segmentation)

* Experience building quality systems (sampling, audits, calibration sessions, disagreement resolution)

* Exposure to content safety labeling or trust & safety workflows

Compensation

* Competitive hourly base pay: $30–$50 per hour

How To Apply

Visit Rex.zone and search for “Remote STEM Jobs in India” to find matching roles and apply. Highlight STEM engineering impact, Python/data tooling, and experience with data labeling, RLHF, LLM evaluation, training data quality, and annotation guidelines compliance.