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Hi, I'm Sagar Dash
Backend Architect

APIs • Microservices • Distributed Systems • Cloud Architecture

Backend-focused engineer with 8+ years of experience scaling distributed systems.

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Sagar Dash

About Me

I’m a Backend Architect with experience designing and maintaining distributed backend systems. I enjoy working with Go, microservices, Kubernetes, Redis, and event-driven architectures, with a focus on building dependable and scalable services for real-time applications.


Core Focus

⚡ Microservices Architecture
🚀 High-Availability Systems
📊 Event-Driven Design
☁️ Cloud Infrastructure

Experience

Senior Software Engineer

Pathao

Sept 2023 - Present

Backend Engineer leading Go-based distributed services powering logistics and merchant systems in a high-traffic super app.

  • Design and maintain system architecture
  • Lead incident response and root cause analysis
  • Optimize high-load endpoints using goroutines (40% latency improvement)
  • Mentor junior engineers on distributed systems

Lead Specialist, Engineering

10 Minute School

Sept 2017 - Sept 2023

Full-stack developer at Bangladesh’s fastest-growing EdTech startup. Collaborated with Product and Mobile teams on complex system architectures.

  • Architected Live Class backend for 1,000+ concurrent users
  • Designed robust payment system with RabbitMQ
  • Built high-concurrency quiz engine for massive traffic spikes
  • Developed CRM dashboard for operational efficiency

Skills

Backend Frameworks

GoNest.jsGinGo ChiLaravel

Cloud & DevOps

DockerKubernetesTerraformAWSGCPGithub Actions

Message Queues & Search

RabbitMQAWS SQSElasticsearch

Databases & Caching

RedisPostgreSQLMySQLMongoDB

Other Languages

PHPJavaScriptPythonTypeScript

Open Source

Pathao Courier Woocommerce Plugin

Author

Integration plugin for Woocommerce

Migo

Author

Open source project

Hoppscotch

Contributor

API development platform

Watchable

Contributor

Open source project

Featured Projects

Agents Salary Automation

Architected a high-concurrency Go service using goroutines, significantly reducing payout latency for thousands of agents.

GoGoroutinesConcurrencyDistributed Systems

Merchants Issue Management

Designed a scalable system to streamline support workflows and drive sustainable growth for merchant partners.

GoSystem DesignScalability

Live Class Backend

Architected the Live Class backend to support 1,000 concurrent users using Go and Redis.

GoRedisReal-timePHP

Payment Architecture

Architected a robust Payment System using RabbitMQ to ensure transactional integrity and handle peak loads.

RabbitMQPHPPayment SystemsEvent-driven

Logistics Management

Engineered a real-time Go backend with Redis to optimize vehicle allocation and tracking reliability.

GoRedisReal-timeOptimization

Quiz & Exam Module

Engineered a high-concurrency Competitive Quiz Engine optimized for low latency during massive traffic spikes.

PHPGoHigh-concurrencyOptimization

Latest Articles

Thoughts, opinions, and technical tutorials.

Get in Touch

Feel free to reach out if you want to collaborate, ask a question, or simply say hello!

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