Open to work — Go Backend Developer roles

Saravana Kumar J

Backend Systems Engineer. Go, distributed systems, authentication.

I build backend services and distributed systems, and apply the same systems thinking to AI engineering. I build from scratch to understand internals — networking, auth, concurrency — rather than stopping at the framework.

[ GitHub ] [ LinkedIn ] [ X ] [ Email ]

About

Self-taught by building — backend APIs, distributed systems, AI agents, production platforms — instead of tutorials.

Currently focused on

Go
Distributed Backends
Authentication systems
gRPC
Event-driven architectures
Redis
Docker
PostgreSQL

Contact

Email: mail.saravanakumarj@gmail.com
GitHub: github.com/imsarkie
LinkedIn: linkedin.com/in/saravana-kumar-j
X: x.com/imSarkie
Location: Chennai, India

[ Email ] [ GitHub ] [ LinkedIn ] [ X ]

Technologies

Go
Java
Python
Spring Boot
FastAPI
LangChain
LangGraph
Docker
Redis
PostgreSQL
MySQL
MongoDB
REST APIs
gRPC
JWT
OAuth2
OpenID Connect
Git
Linux
Flutter
Dart

Backend Systems

Focused on Go and distributed systems. I build things from first principles — networking, TCP, HTTP, auth, caching, concurrency — rather than depending entirely on frameworks.

Languages

Go
Java
Python

Backend Technologies

Spring Boot
FastAPI
REST APIs
gRPC
JWT Authentication
OAuth2
Redis
Docker
PostgreSQL
MySQL
MongoDB

Currently Interested in

Go concurrency
Goroutines
Channels
Worker Pools
API Gateway
Distributed authentication
Service discovery
Kafka
Microservices

AI Engineering

Systems where models are components, not the whole app — agents, orchestration, retrieval, evaluation, backed by the same backend engineering.

AI Agents
Tool / Function Calling
LangGraph
LangChain
RAG
Weaviate
Fine-tuning (QLoRA)
AI Evaluation
Gemini
OpenRouter
MCP
LLMOps

Featured Projects

Identity Service In Progress

Distributed authentication platform in Go — built to learn how auth systems work internally.

Go
JWT
OAuth2
OpenID Connect
gRPC
Redis
API Gateway
MySQL
Docker

Go Real-Time Streaming

WebSocket/TCP streaming with concurrent processing, inspired by financial market data feeds.

Go
WebSockets
TCP
Goroutines
Channels

Multi-Client Chat (TCP)

Chat server over raw TCP sockets handling multiple concurrent clients.

Go
TCP
Sockets
Goroutines
Concurrency

PostOnce

Backend-first social platform — auth, rate-limited posting, friend graph.

JWT Authentication
Redis
PostgreSQL
Docker
API Key Management
REST APIs

Campaign Automation Platform

Agentic workflow platform for lead validation, campaign orchestration, and automated execution.

LangGraph
FastAPI
LLMs

Text-to-SQL

Fine-tuned Qwen model that converts natural language into SQL.

QLoRA
FastAPI
Spider
BIRD

AI Evaluation Platform

Automated reasoning platform for evaluating AI outputs with configurable judging pipelines.

Open Source

[ namma_wallet ]

Writing

I occasionally write about backend engineering, Go, and distributed systems.

Topics

Backend Engineering
Distributed Systems
Go
Authentication
Building from Scratch