whoami

Subashkumar S

Backend Engineer · Distributed Systems

I build backend systems that move and process data at scale — APIs, asynchronous workflows, telemetry pipelines, and high-cardinality data platforms. At Atatus, I work on observability infrastructure processing traces, logs, and metrics using Node.js, TypeScript, ClickHouse, Kafka, and Kubernetes.

loc
Chennai, IN
org
Namlabs Technologies (Atatus)
since
2024-05 — present
focus
backend systems · distributed systems · data pipelines
ls projects/cat resume.pdfgithublinkedin

cat experience.log

Software Engineer @ Namlabs Technologies (Atatus)

Aug 2024 — present · Chennai, India

2024-08INFOingestEngineered telemetry ingestion pipelines processing distributed trace spans and log events at scale, via NSQ message queues into ClickHouse analytical storage — Node.js and TypeScript.

2024-11INFOqueryDesigned and optimised ClickHouse query strategies for high-cardinality datasets, materially reducing filter-API response times.

2025-03INFOapiBuilt configurable dashboard APIs consumed by the React frontend, letting customers compose their own observability views across their service topology.

2025-08INFOintegrationsIntegrated HubSpot CRM to sync customer and account data with the platform, with Redis-backed caching to keep external API calls off the request path.

Software Engineer Intern @ Namlabs Technologies

May 2024 — Jul 2024 · Chennai, India

2024-05INFOcollectorBuilt core data-collection modules for a Node.js web monitoring tool at prototype stage; the architecture was carried into the production APM platform.

2024-06INFOintegrationsIntegrated Jira so teams could create and link issue tickets directly from the monitoring platform, shortening the incident response loop.

2024-07INFOapiImplemented the initial data-visualisation endpoints that informed the API design patterns used in the full product release.

ls -la projects/

total 2

updated 2026-06-20space-tourism/deployed

A seat-booking platform whose central constraint is that a launch must never sell past capacity — including under a rush of simultaneous buyers.

  • Oversell-proof seat reservation in a single atomic update — verified by a 50-way concurrency test
  • Stripe Hosted Checkout with a signature-verified webhook as the only source of truth for "paid"
  • Timed seat holds, a background sweeper for abandoned checkouts, and refunds that return inventory
stack
React · TypeScript · Express · MongoDB · Redis · Stripe · Docker
cat space-tourism/README.mdlivesource
updated 2026-06-16cineplan/deployed

A TMDB-backed discovery and planning app where the interesting work sits behind the UI — a caching proxy, and scheduled email reminders delivered out of band.

  • Server-side TMDB proxy with Redis cache-aside and response normalisation — the API key never reaches the browser
  • Watch reminders as BullMQ delayed jobs, drained by a separate worker process
  • One Redis instance doing three distinct jobs, deliberately
stack
React · TypeScript · Express · MongoDB · Redis · BullMQ · Docker
cat cineplan/README.mdlivesource

cat skills.txt

languages
TypeScript · JavaScript · Go · Java
backend
Node.js · Express · REST APIs · OAuth / session auth · Stripe
datastores
ClickHouse · Redis · MongoDB · PostgreSQL
queues
NSQ · BullMQ · Kafka
frontend
React · Next.js · Astro · Tailwind CSS
infra
Docker · Docker Compose · Caddy · nginx · GitHub Actions · Make · Linux
cloud
Hetzner · AWS · Kubernetes · self-managed VMs
domain
Observability / APM · distributed tracing · log analytics · third-party integrations
education
B.Tech, Information Technology — University College of Engineering, BIT Campus, Tiruchirappalli, 2019 — 2023 (CGPA 8.09)

stat resume.pdf

file
Subashkumar_Resume.pdf
size
121 KB
updated
2026-06-17
source
LaTeX — the experience log above mirrors it
Download resume.pdfopen in browser

contact --list

email
subashkumar.senthil@gmail.com
github
github.com/Subashkumar-S
linkedin
www.linkedin.com/in/subashkumar-s/
x
x.com/Subash2232