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

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

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

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

INFOintegrationsIntegrated 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

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

INFOapiImplemented 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