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Sushant Kumar

Data Science & Machine Learning Enthusiast

Machine Learning & Data Science enthusiast on a mission to simplify open-source, build meaningful tech, and connect brilliant minds.

Professional Experience

Data Engineer Intern - Paid

Euler Motors New Delhi, India Nov 2025 - Present
  • Managed and optimized 15+ Apache Flink and Spark jobs processing over 100K+ events/sec for real-time telemetry data pipelines
  • Designed and implemented scalable hot and cold telemetry data warehouse infrastructure using Apache Druid, Apache Iceberg, ClickHouse, and Amazon S3
  • Built and maintained high-throughput ingestion pipelines using Kafka Connect, AWS Glue, Athena, and Hive
  • Resolved small-file issues using Spark-based compaction jobs, improving query performance, storage efficiency, and long-term data reliability
  • Automated and optimized cron-based workflows using multithreading and batching techniques, reducing execution time by and lowering AWS costs
  • Built monitoring and observability pipelines using Prometheus and Grafana to detect telemetry anomalies and improve production data reliability
  • Developed real-time alerting workflows using AWS Lambda and Amazon SNS for Kafka-to-S3 pipeline failure detection and automated incident reporting
  • Worked with AWS Step Functions, EMR, S3, CloudWatch, and EventBridge to orchestrate scalable stream and batch-processing workflows

AI Model Trainer - Paid

Deccan AI Remote July 2025 - Present
  • Contributed to the evaluation and improvement of Google Gemini , enhancing accuracy, reasoning, and real-world usability
  • Performed large-scale annotation and systematic evaluation across domains including YouTube retrieval, messaging, utilities, and productivity
  • Identified performance gaps in scheduling, workflows, and user-intent understanding, delivering actionable insights for model refinement
  • Improved search relevance and ranking for video and song retrieval through detailed content evaluation
  • Detected hallucinations, factual inaccuracies, and inconsistencies to strengthen model reliability
  • Provided structured, evidence-backed feedback to improve response quality and consistency
  • Collaborated with DataCompute tools to optimize evaluation pipelines and feedback loops
  • Benchmarked multiple Gemini iterations to ensure consistent performance and quality improvements

Campus Partner 2026 - Paid

Perplexity AI Remote Dec 2024 - Feb 2025
  • Represented Perplexity AI as a Campus Partner 2025, driving awareness and adoption within the student community
  • Led campus initiatives and executed outreach programs, workshops, and engagement activities
  • Planned and ran digital and on-ground marketing campaigns to boost visibility and user acquisition
  • Generated leads by onboarding students and encouraging active usage of Perplexity AI tools
  • Organized events ensuring smooth coordination, high participation, and strong engagement
  • Provided technical support and guidance to help students effectively use AI tools
  • Promoted Perplexity’s Comet agentic AI browser and shared actionable feedback with the team to drive product improvements
  • Demonstrated leadership and built strong community engagement through cross-team collaboration

AI Model Trainer - Paid

Outlier AI Remote Dec 2024 - Feb 2025
  • Provided subject matter expertise in Biology, Chemistry, and Mathematics to improve AI model accuracy
  • Evaluated and refined AI-generated responses ensuring quality and scientific validity
  • Collaborated on improving model training pipelines and data quality
  • Tech Stack: Python, LaTeX, Markdown, GenAI, Mathematics, Biology, STEM

Freelancer

Enally.in Remote Since Feb 2021
  • Developed ML solutions integrating data preprocessing, model training, and deployment
  • Utilized Python, TensorFlow, R, Web Dev, Flask, and Google AI services
  • Delivered scalable AI-driven web solutions
  • Tech stack: Python, GenAI, Supervised Learning, R, HTML, CSS, APIs, AWS

Education

Bachelor of Technology - Computer Science and Engineering

Lovely Professional University Punjab, India CGPA: 8.05

Intermediate (Mathematics + Biology)

Mount Sinai Higher Secondary School Kohima, Nagaland 72.40%

Matriculation

Assam Rifles Public School Kohima, Nagaland 84%

Technical Skills

Programming Languages

Python R SQL/NoSQL/HiveQL C C++ Scala Java Go and Rust (Basics)

AI & ML

TensorFlow PyTorch scikit-learn

Core Competencies

Deep Learning
Computer Vision
Data Analysis
Apache Iceberg and Druid
GenAI & NLP
Cloud Computing
Big Data
Amazon Web Services

Key Certifications and Training

Oracle Certified Professional

Oracle

Cloud Computing

NPTEL

Geo Computation

ISRO