available_for_hire = true·IIT_Roorkee · 2+ yrs · Bangalore

Hi, I'mAryan Jain.

APIs, queues, caches, and the boring-fast plumbing in between.

1M+

req / day

99.9%

uptime

70K

players indexed

<200ms

p99 latency

View Projects Download Resume

01//About

aryan@portfolio: ~/about

>whoami

Aryan Jain — backend-first engineer who doesn't stop at the backend.

Comfortable owning the full slice: API design → data layer → infra → deployment. Currently targeting Senior Backend / AI Backend roles at product companies that take latency, correctness, and developer ergonomics seriously.

location

Bangalore, IN

timezone

IST · UTC+5:30

status

Open to work

since

2024 → now

Currently

Senior Backend

@ Xarterian, building a high-traffic gateway, auctions, and a player-similarity engine.

Transitioning to

AI Backend

Embeddings, vector search, function calling — the unglamorous wiring around models.

02//Skills

The tools, sorted by which hat I'm wearing.

active_role = "Backend"

filter = highlight_matching

Languages

5/5

JavaScriptTypeScriptPythonJavaC++

Backend

7/7

Node.jsNestJSFastifyExpressGraphQLgRPCREST

Frontend

0/4

React.jsNext.jsTailwind CSSRedux

Data

4/4

MongoDBRedisPostgreSQLFirebase

DevOps · Infra

1/7

DockerKubernetesGCPAWSCI/CDGitHub ActionsNginx

AI · ML

1/5

LLM APIsEmbeddingspgvectorRAG pipelinesLangChain.js

03//Selected work

Sorted for a Backend hire.

$ ls projects/ --sort=relevance

50ms bid latency

Cricket Live Auction Engine

Redis-first bidding with Redlock, Socket.io fan-out, Bull queues. Held under 5K concurrent users.

RedisSocket.ioBullNode.js

Live GitHub#01

BEDevOps

1M+ req/day

High-Performance API Gateway

12-stage middleware pipeline with Lua rate limiter, circuit breaker, K8s hot-reload and OpenTelemetry tracing.

Node.jsLuaKubernetesOpenTelemetryRedis

Live GitHub#02

<200ms p99

Real-time Notification Pipeline

Toss, wickets and milestones over Redis pub/sub with distributed locking and dedupe windows.

RedisPub/SubNode.js

Live GitHub#03

BEAI

70K players indexed

Player Similarity Engine

HNSW-indexed vector search over 70K cricketers using cosine similarity and rich feature embeddings.

pgvectorHNSWPostgreSQLPython

Live GitHub#04

BEDevOps

99.9% uptime

Cricket Live Score Platform

Real-time data ingestion across Redis + MongoDB with a management panel that supports revert-to-source.

RedisMongoDBDockerNginx

Live GitHub#05

DevOpsBE

4× payload reduction

Apollo Gateway Observability

Prometheus, New Relic, Last9 OpenAPM and a compression middleware that cut payloads by 4×.

PrometheusNew RelicGraphQLApollo

Live GitHub#06

04//Experience

The receipts.

Xarterian

Apr 2024 — Present

Software Developer · Product Engineer

Owned an API gateway that sustained 1M+ req/day with sub-200ms p99 across 6 downstream services.
Designed a Redis-first live auction engine — 5K concurrent users, Redlock for correctness, Socket.io for fan-out.
Stood up Prometheus + Last9 observability on Apollo Gateway; cut wire payload size by ~4× via compression middleware.
Shipped a vector-search player-similarity service (HNSW, pgvector) used by product surfaces and editors.

IIT Roorkee

2017 — 2021

B.Tech, Electrical Engineering

AIR 1103, JEE Advanced.
Coursework in algorithms, networks, signal processing and probability.

05//Currently learning

Sharpening for the next role.

transitioning → AI Backend Engineer

LLM APIs & function calling

░░░░░░░░░░

Vector DBs & RAG pipelines

░░░░░░░░░░

LangChain.js · LangGraph.js

░░░░░░░░░░

06//Contact

aryan@portfolio: ~/contact

emailaryanajjain@gmail.com githubgithub.com/Aryan0Jain linkedinlinkedin.com/in/aryan0jain resumeresume.pdf

Say hello

looking for

Senior Backend / AI Backend roles
Product companies that take latency seriously
Remote-first or Bangalore
Teams that ship and measure

── EOF · thanks for reading