System Online

Subroto Kumar

~/$ _

Software Engineer with 2.5 years building and operating cloud-native systems at production scale on AKS and EKS. Specializes in Kubernetes, Distributed Systems, Cloud Architecture, DevOps, and Multi-Cloud engineering.

Init Contact
Subroto Kumar

01. Architecture & Identity

I am a Software Engineer specializing in DevOps, Cloud & MLOps Engineering, Kubernetes Administration, and Distributed Systems. My expertise lies in designing scalable, event-driven microservices and shipping zero-downtime GitOps pipelines across multi-cloud environments like AKS and EKS.

Beyond traditional infrastructure, I architect robust backend systems that power modern AI, from highly optimized RAG platforms to provider-agnostic LLM gateways. I build resilient foundations that hold up under production load, ensuring every system is scalable, observable, and built right. 🚀

bash - certifications

$ get-certs --vendor="Microsoft Azure"

✔ AZ-204: Developer Associate
✔ AI-102: AI Engineer Associate
✔ AZ-900: Azure Fundamentals
AZ-204 AI-102 AZ-900

02. Execution Log

Senior Software Engineer

@ Capgemini • March 2023 - Present
  • Owned end-to-end GitOps delivery on AKS/EKS: authored Helm charts, configured ArgoCD sync policies, and enforced GitLab CI gates with Trivy and SonarQube, achieving 25% faster rollouts with full uptime across 12 months.
  • Eliminated config drift across 100% of production clusters by migrating NGINX Ingress to NGINX Gateway Fabric via auditable IaC, standardizing TLS termination and cutting routing incidents by 80%.
  • Built a provider-agnostic API gateway in Go unifying Azure OpenAI, AWS Bedrock, and Ollama behind one REST interface, enabling zero-code model switching and saving 40+ engineering hours per integration cycle.
  • Designed a Kafka-backed event-driven Spring Boot microservice routing 3,000+ agent incident tickets from ServiceNow via consumer-group partitioning, sustaining full message durability and cutting manual dispatch by 60%.
  • Deployed Kubeflow Pipelines on AKS for ML workflow orchestration, standardizing model training DAGs across 3 data science teams and cutting experiment turnaround by 35%.
  • Scaled a RAG platform from 0 to 17,000+ MAU on AKS by tuning HNSW parameters on PGVector and building a custom query planner, sustaining sub-50 ms p99 latency under production load.
  • Instrumented a platform-wide observability stack on OpenTelemetry and Grafana tracking p99 latency and SLO burn rates, compressing MTTD from hours to under 5 minutes.
  • Rolled out a fault-tolerant Azure Functions ingestion pipeline for 5+ file formats with exponential-backoff retries and dead-letter queue recovery, maintaining complete data integrity across all production runs.
  • Mentored 2 junior engineers on Kubernetes operators, Helm, and GitOps; authored runbooks that reduced new-hire onboarding time by 30%.

Cloud Engineer Intern

@ LTI Mindtree • Aug 2023 - Oct 2023
  • Designed and implemented scalable cloud topologies across AWS compute, storage, and networking layers (EC2, S3, RDS).
  • Automated infrastructure provisioning and state management utilizing Terraform (IaC).
  • Optimized container orchestration and deployment strategies using AWS ECS and Kubernetes (EKS).

Flutter Developer Intern

@ Ridobiko • Nov 2022 - Apr 2023
  • Spearheaded the integration of DigiLocker e-KYC utilizing Flutter and OAuth 2.0, significantly streamlining user onboarding.
  • Architected and deployed robust modules including dynamic coupon engines, automated GST computation, and secure wallet payment systems.

03. Tech Stack

Skill Telemetry Active

Languages

Go Go Python Python Java Java Dart Dart TypeScript TypeScript JavaScript JavaScript

Generative AI & LLMs

Langchain Langchain LangGraph LangGraph ADK Google ADK Azure OpenAI Azure OpenAI PGVector PGVector RAG Bedrock Amazon Bedrock

Backend Architecture

Spring Spring NodeJS Node.JS NestJS Nest.JS gRPC gRPC GraphQL GraphQL FastAPI FastAPI

Cloud & DevOps

AWS AWS Azure Azure K8s Kubernetes Docker Docker Terraform Terraform ArgoCD ArgoCD Linux Linux

Data & Messaging

Kafka Kafka RabbitMQ RabbitMQ Postgres PostgreSQL MongoDB Mongo Redis Redis

Observability & Tools

OTel OTel Grafana Grafana Prometheus Prometheus Loki Loki Tempo Tempo Flutter Flutter GitLab GitLab Git Git

04. Selected Projects

PlayStack
Production

PlayStack

Architected a cloud-native video platform on EKS for DASH adaptive bitrate playback, featuring an S3 → SQS → KEDA ScaledJob pipeline for on-demand FFmpeg transcoding and scaling to 100K+ concurrent users.

Build: Passing | Uptime: 99.9%
GoK8sKEDAFFmpegIstio
Rover
Production

Rover

Built a Redis-compatible KV store in Go implementing the full RESP protocol with goroutine concurrency. Features sub-1 ms GET latency and dual persistence via AOF & RDB.

Latency: <1ms< /span> | Test Cov: 92%
GoRESPConcurrencyPersistence
FeedSH
AI Powered

Astraea

Astraea: An open-source AI software engineering platform IDE for building, editing, and running full-stack applications directly from the browser.

Open Source | Build: Stable
ReactWebcontainersGoPythongRPCPostgresKubernetesApplied AI
FeedSH
Production

FeedSH TUI

FeedSH: A lightning-fast RSS/Atom feed reader built for the terminal, designed around keyboard-first navigation. Built with Dart and Nocterm for a smooth, responsive TUI experience.

Open Source | Build: Stable
NoctermDartBLOCTUIRSS
Stackctl
Production

Stackctl CLI

Stackctl is a fast, interactive Terminal User Interface (TUI) command-line tool for generating Spring Boot, Quarkus projects quickly with customizable configurations.

Release: Available | Build: Passing
availability
GoBubbleteaCLILipglossspf13/cobraJava
LBX
Production

LBX

LoadBalancer in Go supporting service discovery, round-robin request distribution, and automatic failover.

Traffic: Routed | Health: 100%
GoDockerNetworking
Kurumi
Production

Kurumi

A sleek AniList client powered by GraphQL. Effortlessly discover and track anime and manga.

Play Store Live | Rating: 4.8
FlutterGraphQLRiverpod
Comet
Production

Comet

A secure cryptocurrency wallet with support for ERC20 & NFT interactions.

Mainnet Active | Security: OK
FlutterWeb3DartERC20
Helios
Production

Helios

A lightweight Python web framework built from scratch on top of WSGI for simplifying backend API development.

Build: Passing | PyPI Active
PythonWSGIBackend
Docsync
Production

Docsync

Google Docs-style web app supporting real-time text editing using Socket.IO.

WS: Connected | Latency: 24ms
FlutterSocket.IOMongoDB
1Inch DEX
Production

1Inch DEX

A token swap application enabling seamless exchange of 13 crypto tokens with MetaMask integration.

Web3: Connected | Smart Contract: OK
Web3ReactDEX

05. Init Handshake

~/contact - bash
subroto@dev:~$ curl -X POST https://subrotokumar.dev/api/contact \
-H "Content-Type: application/json" \
-d '{"action": "init_handshake"}'
HTTP/2 200 OK
{
  "status": "Ready for new opportunities",
  "email": "[email protected]",
  "availability": "Remote / Full-time / Relocate"
}
~/$
  • goto about Enter
  • goto experience Enter
  • goto skills Enter
  • goto projects Enter
  • goto contact Enter
  • fetch resume Enter
  • sudo rm -rf / Enter