🧑‍🚀 whoami

package main
type Engineer struct {
 Name string
 Role string
 Company string
 Depth string
 Focus []string
}
func main() {
 me := Engineer{
 Name: "Sarthak Shyngle",
 Role: "Senior SRE / Platform Engineer",
 Company: "Alpheya",
 Depth: "kprobe → cgroup → pod → cluster",
 Focus: []string{"Go", "eBPF", "Kubernetes", "GitOps", "Observability"},
 }
 me.MakeSystemsBoring() // reliability is a feature
}

🔭 Now: Senior Site Reliability / Platform Engineer at Alpheya — scaling from deep-tech niches into large production systems.
🧪 Before: Founding Engineer & Senior SWE at Keploy — turning real API traffic into test suites + mocks, with zero code changes to the app under test.
🐧 Deep end: eBPF (kprobes, cgroup socket programs), L4/L7 transparent proxies, TLS interception, Linux internals.
☸️ Kubernetes: mutating webhooks, custom controllers & CRD testing, Helm + FluxCD GitOps.
🎓 Google Summer of Code mentor, 3 years running (2023–25) — see below.
🏆 #3 all-time contributor at Keploy OSS · 300+ PRs reviewed.
💬 Ask me about: DSA, Go concurrency, API testing, kernel-space networking.
⚡ Off-keyboard: sports and any excuse for a bit of adventure.

🎓 Google Summer of Code

3 consecutive years mentoring for Keploy

Every summer since 2023 I've mentored GSoC contributors through systems programming and Go internals — the parts of open source that scare people off. Proposal review, architecture guidance, code review, and the long unglamorous middle where a contributor turns into a maintainer.

🧠

Systems programming eBPF, syscalls, network proxies, kernel-space debugging

🐹

Go internals Concurrency, memory model, profiling, runtime behaviour

🔍

Review culture 300+ PRs reviewed; turning first-time contributors into maintainers

Selected mentorship — GSoC 2024

Project	Contributor	Co-mentors
Cross-Platform Extensions: Keploy IDE Integration	Akash Singh	Animesh Pathak, Gourav Kumar

_{Considering applying to GSoC with Keploy? Proposals in the systems/eBPF space are the ones I most like to see.}

🛠️ Tech Stack

🔍 Expand for the full breakdown

Languages Go Java TypeScript JavaScript Python C SQL

Systems & Networking eBPF Linux gRPC GraphQL IPC

Platform & Delivery Kubernetes Docker Helm FluxCD GitHub Actions

Data & Storage PostgreSQL MongoDB Redis Kafka PySpark Databricks

📌 Selected Work

Project	What it does	Stack
🧬 Keploy — Core Platform	Standalone binary → distributed microservices over IPC sockets. ×ばつ faster, 85% quicker test runs	`Go` `IPC`
☸️ K8s Proxy & CRD Testing	Mutating webhook injects agents into live pods for in-cluster record & replay	`Go` `controller-runtime`
🐝 eBPF Interception Engine	kprobes + cgroup socket programs → codeless mocks via an L4/L5 transparent proxy	`eBPF` `C` `Go`
🔥 Profiler-MCP	MCP server letting LLMs analyze perf bottlenecks and auto-launch flamegraphs	`MCP` `Go`
🤖 AI Unit-Test Generator	VS Code extension (10k+ installs) + LLM PR agent with Tree-sitter AST parsing	`LLMs` `TypeScript`
🐘 Postgres Wire-Protocol Parser	Binary protocol parser tuned for 2k+ ops/sec live capture and replay	`Go` `Performance`

🔍 Expand full project breakdowns

🧬 Keploy — Core Platform

Led redesign from a standalone binary to distributed microservices, isolating GC-heavy workloads into separate processes over IPC sockets — ×ばつ performance gain. Built a centralized mock-caching layer that cut test execution time by 85%.

Go · IPC · Distributed Systems

☸️ Kubernetes Proxy & CRD Testing

Designed the HLD and led development of Keploy's K8s proxy — a mutating webhook injecting agents into live pods for in-cluster traffic record & replay. Captured and replayed cluster traffic to test custom controllers / CRDs.

Go · controller-runtime · Admission Webhooks

🐝 eBPF Interception Engine

End-to-end interception using kprobes + cgroup socket programs, enabling codeless mock generation through an L4/L5 transparent proxy. Dynamic CA certificate injection to intercept TLS traffic transparently.

eBPF · C · Go · TLS

🔥 Profiler-MCP

An MCP server letting LLMs (Claude, Copilot) autonomously analyze performance bottlenecks across Go, Python, and Java from runtime profiling data — auto-launching interactive flamegraphs.

MCP · Go · Profiling

🤖 AI Unit-Test Generator

VS Code extension (10k+ downloads) plus an AI-powered GitHub PR agent using LLMs, Tree-sitter AST parsing, and vector-based semantic retrieval.

LLMs · TypeScript · Tree-sitter

🐘 Postgres Wire-Protocol Parser

High-performance parser for the PostgreSQL wire protocol, tuned to handle 2k+ ops/sec for live capture and replay.

Go · Binary Protocols · Performance

📜 More: earlier work

Java Agent (ByteBuddy) — runtime bytecode instrumentation to generate E2E tests inside an Apache Karaf environment.
Java SDK with middleware filters — captured every request/response of any Spring Boot app as tests + mocks, with zero code changes.
gRPC server — protobuf-based contract enabling multi-language SDK integration without redefining models per language.
Integration testing pipelines — templated generation + deduplication cut 10k+ test YAML templating from 5 min → 0.5 s; socket-based agent tracked per-request line coverage via JaCoCo.
FarEye (Data Engineering Intern) — large-scale ETL on Databricks / PySpark / Hadoop, geocoding optimized with Uber H3; automated unit-test pipelines for Redshift and DataLake snapshot validation.

📊 GitHub Analytics

🎖️ Open Source & Community

🥉 #3 all-time contributor at Keploy OSS; top contributor and owner of the enterprise edition, maintaining repo health and reviewing 300+ PRs.
📊 Org impact — led client delivery and issue resolution, stabilizing production testing pipelines.
✍️ Technical writing — blogs on engineering internals and automated testing:

Post	Topic
Maintaining Auto-Generative API Tests: the Need to De-duplicate	Test maintenance at scale
Exploring Unit Test Generative Tools	AI-assisted testing
What is the Postgres Wire Protocol	Binary protocols
How to Test Traffic with a Custom Kubernetes Controller	K8s controllers & CRDs
Integration Testing vs End-to-End Testing	Testing strategy

→ All posts on the Keploy blog

📡 On my radar

_{Auto-updated daily from Hacker News, TechCrunch AI, and The Verge — see workflow}

- [Mistral raises 3ドルB](https://mistral.ai/news/mistral-makes-sovereign-open-weight-ai-to-frontier/) _{Sep 8}

Jellyfin 12.0 _{Sep 8}
I've factored the RSA keys of a Certificate Authority from the 90s _{Sep 8}
Opaque recurrence, and other AI terms that you should probably know _{Sep 7}
216M Spy TVs – The LG Smart TV Problem [video] _{Sep 7}
Seattle Times and Newsday sue OpenAI and Microsoft for infringement _{Sep 6}

💭 Currently exploring

Large-scale system design · SRE practice at scale · Advanced observability · Chaos engineering

Open to interesting problems in platform engineering, reliability, and developer tooling.

📫 mesarthak1608@gmail.com

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Sarthak Sarthak160

Achievements