Kaushik's Portfolio

My professional journey so far:

Sept 2025 – Present

Ametris (Formerly ActiGraph)

Implemented standalone container integrating wear algorithm with test-driven development.
Developed Python package to compare and validate algorithm results.
Designed and built anomaly detection web-app (Python + React) for data scientists to generate baselines, stats, and surface anomalies.

Jan 2025 – Sept 2025

Ametris (Formerly ActiGraph)

Architected extensible serverless device integration service for Pfizer's Panoramic device, enabling scalable future device onboarding with minimal engineering effort.
Led Sleep-Scratch workflow migration improving throughput from single-day single-wrist (~10 mins) to 24 days across two wrists for 3–4 subjects concurrently within 10–15 minutes.
Redesigned J&J data processing architecture by splitting workloads into extension and helper pods; processed 24GB across 30 subjects successfully.
Automated infrastructure provisioning via Terraform (S3, Athena), reducing manual config effort and deployment inconsistencies.
Reduced security vulnerabilities from 130+ to under 5 by resolving dependency conflicts via Snyk scans.

Apr 2024 – Jan 2025

Biofourmis India Private Limited

Designed Data Lakes and implemented real-time data extraction strategies using Python and Athena.
Took ownership of integrating third-party ML (sleep-scratch) algorithm developed by Pfizer with the Biofourmis system.
Developed custom pipeline to process J&J retrospective accelerometer data using Pfizer algorithm.
Managed release management - rebased multiple repositories to align with major platform release branch.

Aug 2022 – Apr 2024

Biofourmis India Private Limited

Transitioned monolithic services to microservices (Python → Go), significantly improving API response times and load-handling.
Introduced Redis-driven caching reducing latency and enabling the system to handle 3x concurrent requests.
Built RESTful APIs in Python and Go with PostgreSQL and MongoDB, integrating novel clinical trial devices.
Took ownership of internal FDA project codebase enhancements and new feature integration.
Set up CI/CD pipelines in Jenkins and implemented Postman automation for sanity checks.

Technologies I work with:

Languages

PythonRustTypeScriptC

Databases

PostgreSQLRedisMongoDBDynamoDBTimescaleDBAthena

Infrastructure & Cloud

AWSDockerKubernetesKafkaTerraformJenkinsAzureGit

Frameworks & Tools

ReactNext.jsFastAPIPytestPostman

AI / ML

Learning

PyTorchscikit-learnLangChainHugging Face