Projects | Bharat Kumar – Backend & Cloud Engineer

Selected backend systems and architectural case studies I've designed and built in production environments, focusing on scalability, reliability, and maintainability.

Architecture-First Clear boundaries, data flow, and trade-off analysis

Production-Ready Reliability, observability, and failure handling

Scalability-Focused Event-driven, async, and cloud-native patterns

Case Studies

infra-monitoring-stack

A complete, production-grade monitoring and observability stack built with Prometheus, Grafana, Alertmanager, and Loki. It provides service metrics, infrastructure visibility, proactive alerting, and centralized log aggregation for microservices and distributed systems.

Production-Grade Infrastructure Monitoring Stack

End-to-end observability platform with metrics, dashboards, alerts, and centralized logging.

prometheus grafana alertmanager loki monitoring docker sre

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aws-roles-anywhere-auth

Production-ready implementation of AWS Roles Anywhere authentication, including self-signed X.509 certificate generation and secure temporary credential retrieval without the AWS signing helper.

Secure Hybrid Authentication with AWS Roles Anywhere

Extending AWS IAM to on-prem and CI/CD environments using X.509 certificates.

aws iam roles-anywhere security x509

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surveyhub

SurveyHub is a backend-driven survey and analytics platform that allows users to create surveys, collect responses at scale, and generate aggregated reports asynchronously using background processing.

SurveyHub – Scalable Survey & Analytics Platform

Multi-tenant survey ingestion and analytics platform designed to handle burst traffic at scale.

django celery redis postgresql async multi-tenant

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flask-jwt-todo

A secure Flask REST API for managing users and ToDo tasks using JWT-based authentication. Includes user registration, login, logout, password reset, RBAC enforcement, and full CRUD support, powered by Flask, SQLAlchemy, and PostgreSQL.

Secure REST API with JWT Authentication & Authorization

Reference implementation for stateless authentication and role-based access control using JWT.

jwt flask rbac auth api security

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What I Focus On

Event-Driven Architecture Async Workflows Secure API Design Cloud-Native AWS Failure Handling Idempotency & Retries Scalability Patterns System Observability

Interested in a specific architecture or design decision? Let's discuss.