Subhankar Sagnik Roy

Data Scientist at Alder Mobility · NLP · PyTorch, information retrieval

Alder Mobility

Kolkata, India · IST (UTC+5:30)

5+ years experience

IIT Kanpur

English, Hindi, Bengali

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Overview

Currently at Alder Mobility, where I work on NLP. Taught SQL to 76 non-analysts. Before that: Reliance Jio and Siemens. Most at home with PyTorch and evaluation. I mentor students through university programmes.

Good reasons to reach out

Working sessions on transformers
Thoughtful intros to people in my field

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Courses and coaching offers
SEO and link-building offers

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Skills

evaluationPyTorchinformation retrievalPythontransformers

Experience

Data Scientist
Sep 2025 - Present
Alder Mobility · 1 yr 1 mo · Full-time · Kolkata, India
- Replaced 48 hand-built dashboards with one metrics layer people trust.
- Taught SQL to 152 non-analysts.
Data Analyst
Jul 2024 - Sep 2025
Reliance Jio · 1 yr 2 mo · Full-time · Kolkata, India
- Replaced 20 hand-built dashboards with one metrics layer people trust.
Data Analyst
Sep 2021 - Jun 2024
Siemens · 2 yr 9 mo · Full-time · Kolkata, India
- Taught SQL to 88 non-analysts.
- Wrote the metric definitions the leadership team reviews every week.

Projects

Conference talk: lessons from language

2025

What went wrong and what worked while scaling NLP.

References

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Education

IIT Kanpur
B.Tech, Economics
2017 - 2021

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