PK
Preethi Kumar@preethi-kumar

iOS engineer at Airbnb. Swift, SwiftUI, performance obsessive.

0 outcomes·40 followers·40 following·39dcurrent streak(best: 48d)·22 proofs

Activity — last 12 months

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22 proofs in the last 12 months

Completed outcomes

No completed outcomes yet
Jun 11skills-become-ai-engineer

Passed AWS Solutions Architect exam, scored 892/1000

Jun 7skills-become-ai-engineer

Deployed CLI agent that writes commit messages from git diff using GPT-4

Jun 5skills-become-ai-engineer

Built zero-downtime deployment pipeline with blue-green strategy

Jun 5skills-become-ai-engineer

Refactored authentication system to eliminate 3,200 lines of duplicate session handling

Jun 5skills-become-ai-engineer

Contributed CUDA kernel optimization reducing inference latency by 34%

Jun 4skills-become-ai-engineer

Completed Stanford's CS231n: Convolutional Neural Networks for Visual Recognition

Jun 4skills-become-ai-engineer

Contributed CUDA kernel optimization reducing inference latency by 34%

May 30skills-become-ai-engineer

Completed Advent of Code 2024 Day 18 — shortest path in a corrupted memory grid

May 30skills-become-ai-engineer

Refactored authentication system to eliminate 3,200 lines of duplicate session handling

May 30skills-become-ai-engineer

Refactored authentication system to eliminate 3,200 lines of duplicate session handling

May 30skills-become-ai-engineer

Passed AWS Solutions Architect exam, scored 892/1000

May 28skills-become-ai-engineer

Completed first pull request to open source project, merged after 2 rounds of review

May 27skills-become-ai-engineer

Deployed CLI agent that writes commit messages from git diff using GPT-4

May 26skills-become-ai-engineer

Implemented RAG pipeline with LangChain and Pinecone — first real embedding search working

May 26skills-become-ai-engineer

Shipped observability stack: OpenTelemetry + Jaeger + Grafana for our microservices

May 25skills-become-ai-engineer

Completed Stanford's CS231n: Convolutional Neural Networks for Visual Recognition

May 23skills-become-ai-engineer

Built zero-downtime deployment pipeline with blue-green strategy

May 20skills-become-ai-engineer

Built first TypeScript compiler plugin — validates custom decorators at compile time

May 19skills-become-ai-engineer

First code review as senior — gave feedback on a junior's auth implementation

May 19skills-become-ai-engineer

Passed Google L5 interview after 3 months of targeted preparation

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