Artificial Intelligence
4 · Research Engineer / Scientist / Member of Technical Staff
The role everyone pictures. A tenth of the postings, and the hardest to enter laterally.
What the job actually is
Making empirical progress on model capability under a compute budget. In practice that is far more engineering than the word "research" suggests — data pipelines, training runs that fail at hour nine, evaluation harnesses, and a great deal of careful measurement. Member of Technical Staff is worth understanding as a convention rather than a level: several labs use it deliberately flat, so the title carries no seniority signal and you must ask about scope directly.
Titles this hides behind
Who is hiring it
Anthropic, OpenAI, Cohere, Mistral, and — the notable Indian entry — Sarvam, which is posting genuine foundation-model roles: ML Researcher for foundational models, ML Engineer for training infrastructure, and ML Engineer for data. That is new. Until recently, frontier research roles were essentially not available in India.
How to recognise it in a JD
Look for publications, NeurIPS, ICML,
pre-training, RLHF, ablation,
scaling laws. Only 6% of the corpus mentions publications at all, so when
it appears it is a real filter rather than boilerplate.
The loop
Prepare like this
- Reproduce one paper end to end and be able to defend every hyperparameter. A single deeply-owned reproduction beats five shallow ones.
- Interrogate your own past work to three levels before the deep dive. Why that architecture, why that baseline, why you believed the result.
- Write a training loop from scratch in PyTorch or JAX, no trainer abstraction, until it is muscle memory.
- Be honest about negative results. "We tried it, it did not work, here is what we learned" is a strong answer here and a weak one almost nowhere else.
Be ready for
- "You have 100 GPU-hours and a hypothesis. Design the experiment." Testing whether you can scope research to a budget — the actual daily constraint.
- "Your eval improved by 2 points. Convince me that is real." Variance, seeds, contamination, and whether the eval measures what you claim.
- "What is the strongest argument against your own last result?"
Read this before you commit a month to it
This is the highest-effort, lowest-yield archetype for a lateral candidate. It is roughly a tenth of the market, screens partly on credentials you either have or do not, and competes against people with full-time research track records. If you have publications or a research-adjacent history, pursue it. If you do not, the same month invested in archetypes 1, 2 or 6 has a materially better expected outcome — and those roles pay comparably.
Compensation
What this role tests
Themes, and where to learn them
These chapters are shared across every role that tests them, so preparation here compounds rather than being spent once.
Practice questions across all themes → · Back to Artificial Intelligence →