Available for new projects

|& Backend Engineer

I help businesses scale with bulletproof infrastructure, automated systems, and growth-focused solutions

500K+Users Served
75%Cost Reduction
99.9%Uptime
Minhaj Sadik - Senior Backend Engineer
Go
TS
AWS
Services & Solutions

Comprehensive Technical Solutions

From SaaS products to custom development, I provide end-to-end solutions that drive business growth and technical excellence

SaaS Products

Ready-to-deploy solutions that solve real business problems

  • Emailer Pro - High-volume email delivery
  • CloudBox - Distributed storage system
  • SocialSuites - Social media automation
From $29/m

System Architecture

Infrastructure migration and optimization for scale

  • Cloud migration strategies
  • Cost optimization (up to 75% reduction)
  • Performance optimization
$150-250/h

Custom Development

Full-stack solutions tailored to your business needs

  • MVP development ($15K-25K)
  • Enterprise solutions ($50K-150K)
  • API design and integration
Freelance

DevOps Consulting

CI/CD, monitoring, and scalability expertise

  • CI/CD pipeline setup
  • Monitoring and observability
  • Team scaling and mentoring
$200-300/h

Proven Track Record

Real results that drive business growth and technical excellence

75% Cost Reduction

Average infrastructure cost savings for clients

99.9% Uptime

Achieved across all production systems

50K+ Users

Concurrent users supported on single system

500+ Transactions

Per second processing capability

Ready to Scale Your Business?

Let's discuss how I can help optimize your infrastructure, reduce costs, and accelerate your growth with proven solutions.

Featured Projects

Production-Ready Solutions
That Deliver Results

Enterprise-grade systems built to scale and drive measurable business value

CloudBox
SaaS Product

CloudBox

Enterprise Storage Solution

S3-compatible distributed storage system with 99.99% durability and intelligent CDN routing

Golang
Distributed Systems
CDN
+2 more
10+ PB
Data Processed
85%
Latency Reduction
Emailer Pro
SaaS Product

Emailer Pro

High-Volume Email Delivery Platform

Process 1M+ emails daily with automatic failover and intelligent routing across multiple providers

TypeScript
Node.js
MongoDB
+2 more
1M+
Daily Emails
99.9%
Delivery Rate
SocialSuites
SaaS Product

SocialSuites

Social Media Automation Platform

Automate posting across 10+ social platforms with intelligent scheduling and engagement tracking

Golang
OAuth 2.0
WebSocket
+2 more
50K+
Daily Posts
10+
Platforms
InfraScale
Consulting Project

InfraScale

Infrastructure Cost Optimizer

AI-powered infrastructure analysis that reduced client costs by 75% while improving performance

Python
AWS
Terraform
+2 more
75%
Cost Reduction
40%
Performance Gain

Ready to Build Something Amazing?

Let's discuss your project and create a solution that drives real business results.

About Me

Meet Minhaj Sadik
Your Technical Partner

A passionate engineer who transforms complex technical challenges into business advantages

Minhaj Sadik

Hi, I'm Minhaj Sadik, a Senior Backend Engineer and Technical Product Leader with over 5 years of experience building systems that scale.

My journey started with a simple fascination: how do systems handle millions of users without breaking? This curiosity led me to specialize in distributed systems, cloud infrastructure, and performance optimization.

Today, I help businesses save over $144K annually while serving 50K+ concurrent users with 99.9% uptime. My approach combines cutting-edge technology with practical business sense.

When I'm not coding, you'll find me mentoring junior developers, speaking at tech conferences, or contributing to open-source projects. I believe in sharing knowledge and lifting others up in the tech community.

5+
Years Experience
70+
Projects Completed
15+
Engineers Mentored
$500K+
Revenue Generated
Sylhet, Bangladesh (Open to relocation)
Available for new projects

Technical Skills

Backend Technologies

Golang95%
TypeScript90%
Node.js88%
Python75%

Cloud & Infrastructure

AWS85%
Docker92%
Kubernetes80%
Terraform78%

Databases

MongoDB90%
PostgreSQL85%
Redis88%
Elasticsearch75%

Achievements & Certifications

AWS Certified Solutions Architect

Professional level certification

2023

Top 1% Stack Overflow Contributor

Golang and distributed systems

2023

Tech Conference Speaker

Spoke at 5+ international conferences

2022-2024

Open Source Contributor

500+ contributions to major projects

2020-2024

Professional Journey

2024

Senior Backend Engineer & Technical Product Leader

Freelance & Consulting

Leading infrastructure optimization projects, reducing client costs by 75% while scaling to 50K+ concurrent users.

  • $144K+ annual savings delivered
  • 99.9% uptime achieved
  • 15+ engineers mentored
2022-2024

Senior Backend Developer

TechCorp Solutions

Architected and built distributed systems handling millions of transactions daily with zero-downtime deployments.

  • Built systems for 1M+ daily transactions
  • Implemented zero-downtime deployments
  • Led team of 8 developers
2020-2022

Backend Developer

StartupXYZ

Developed scalable microservices architecture and implemented CI/CD pipelines that improved deployment frequency by 10x.

  • 10x faster deployment cycles
  • Microservices architecture design
  • Performance optimization expertise
2019

Bachelor of Science in Computer Science

University of Technology

Graduated with honors, specializing in distributed systems and software engineering principles.

  • Summa Cum Laude
  • Dean's List 4 semesters
  • Computer Science Society President
Client Success Stories

Trusted by Industry Leaders
Proven Results

Don't just take my word for it. Here's what clients say about working with me

Infrastructure Optimization
"Minhaj transformed our entire infrastructure. We went from constant firefighting to smooth operations. Our AWS costs dropped by 75% while performance improved dramatically."
Sarah Johnson
Sarah Johnson
CTO at TechFlow Inc

Key Results:

75% cost reduction
99.9% uptime
50% faster deployments
Sarah Johnson

TechFlow Inc

Infrastructure Optimization

75% cost reduction
99.9% uptime

"Minhaj transformed our entire infrastructure. We went from constant firefighting to smooth operations. Our AWS costs dropped by 75% while performance improved dramatically."

Sarah Johnson
Sarah Johnson
TechFlow Inc

"The database optimization work was exceptional. Our query response times improved by 90%, and our users immediately noticed the difference. Highly recommend!"

Michael Chen
Michael Chen
DataCorp Solutions

"Minhaj built our MVP in just 6 weeks. The architecture is solid and we're now handling 10K+ users without any issues. The code quality is outstanding."

Alex Rodriguez
Alex Rodriguez
StartupXYZ

"The API architecture Minhaj designed is brilliant. Scaling has been effortless, and the documentation is comprehensive. Our development team loves working with it."

Lisa Wang
Lisa Wang
GrowthCorp

"Emailer Pro handles our 1M+ monthly emails flawlessly. The delivery rates are incredible and the analytics dashboard gives us insights we never had before."

David Kim
David Kim
EmailCorp

"CloudBox saved us $50K annually on storage costs while improving performance. The migration was seamless and the support has been outstanding."

Emma Thompson
Emma Thompson
DataFlow Inc

Ready to Join These Success Stories?

Let's discuss how I can help transform your infrastructure and drive similar results for your business

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Let's Make It Happen

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Connect With Me

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Services & Pricing

Transparent pricing for all services

System Architecture$150-250/h
MVP Development$15K-25K
Enterprise Solutions$50K-150K
Infrastructure MigrationProject-based
Performance Optimization$200-300/h
Consultation & Support$100-150/h
Free Consultation

30-minute discovery call to discuss your project and provide initial recommendations

Available for New Projects

Currently accepting new clients for Q1 2025

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