Open to Senior Engineering Roles

Shahin Al Kabir Mitul

Senior Fintech Engineer • Architecting resilient microservices at scale

12+ years building high-availability systems with Kafka, Redis, and cloud-native ops.

Running • Cycling • Swimming — wellness fuels my problem-solving edge.

View Case Study Let’s Talk
Portrait of Shahin Al Kabir Mitul
Who I Am

About

I built Shubidha — Bangladesh's first end-to-end digital lending platform, taking a loan from application to disbursement in under 10 minutes with a legally-binding digital signature. That's not a side project. That's 12 years of fintech engineering landing in one system.

At BRAC Bank, I lead backend engineering for digital lending — designing microservices, event-driven pipelines, and high-availability APIs that process real money for 100K+ borrowers. I care about systems that don't fail when it matters most.

12+

Years of experience

10 min

Loan disbursement TAT

100K+

Active users enabled

Engineering Philosophy

How I Think

⚡ Scalable Systems

When Shubidha grew to 100K+ users, we never had to scramble. The microservice boundaries drawn on day one still hold. Good architecture is the decisions you don't have to revisit at 3am.

📡 Event-Driven First

A synchronous chain of API calls for loan approval was killing our TAT. Decoupling the pipeline with Kafka cut processing from hours to minutes. Events aren't just a pattern — they're how complex systems breathe.

🚀 Performance is the Product

A Redis caching layer between our NID verification service and the database cut latency from 800ms to under 50ms. Users don't read architecture docs — they feel the speed. That's the real spec.

🛡️ Reliability by Design

99.9% uptime on a system disbursing real loans isn't achieved by adding more servers. It's designed in from day one: circuit breakers, idempotent APIs, dead-letter queues. Reliability is a decision, not a feature.

Featured Work

Flagship Impact Story

A single, end-to-end fintech transformation with measurable outcomes.

💰 Shubidha: Digital Lending Platform

Turned BRAC Bank’s loan journey into a 10-minute, fully digital experience.

  • 100K+ users onboarded
  • 70% reduction in turnaround time
  • 99.9% service uptime with resilient microservices
  • First digital signature service in Bangladesh for secure e-contracts
View Case Study →

🏃 IronStride — AI Endurance Coach

A personal project: AI-powered coaching app for runners, cyclists, and triathletes. Built with Flutter, Anthropic AI, Firebase, and Strava.

  • AI Daily Coaching Briefs powered by Claude
  • Recovery Score, HRV & Sleep Analysis
  • Strava, Apple Health & Health Connect sync
  • Weather Intelligence & AQI alerts
Explore IronStride ↗
Career

Work Experience

Building scalable fintech solutions with measurable impact

BRAC Bank PLC

Manager • Fintech Engineering & Digital Lending

📍 Dhaka, Bangladesh • Full-time · 4 yrs 8 mos

Manager - Fintech Engineering (Jan 2024 - Present)

Experienced lead back-end developer specializing in fintech solutions with a proven track record of delivering innovative and efficient digital lending platforms. Played a pivotal role in developing the API & Background services for Shubidha, the country's first end-to-end digital lending application, significantly reducing Turnaround Time (TAT) to disburse loans within 10 minutes.

Contributed to BRAC Bank's loan automation process through the development of the Obichol App, enhancing loan request initiation and providing real-time updates. Additionally, built APIs for the CPV app, optimizing merchant contact verification processes for increased speed and accuracy. Passionate about leveraging technology to streamline financial services and improve customer experiences.

Principal Software Engineer - Optimization & System Architecture (Aug 2021 - Dec 2023)

As the Lead Backend Developer for Shubidha, I was in charge of developing the API & Background services that powered the loan processing workflow. Shubidha was the first-ever end-to-end digital lending loan application in the country, and our goal was to make the loan application process faster and more efficient for users.

Core Responsibilities: Designed and implemented automated NID verification, CPV (Merchant Contact Verification), Deduplication, Sanction Screening, and CIB processing—significantly reducing TAT and enabling loan disbursement within 10 minutes. The system achieved 95%+ automation rate while maintaining 99.9% uptime.

Additional Contributions: Developed the Obichol App backend enabling bank staff to initiate loan requests on-the-go with real-time status updates, reducing TAT by 50% and achieving 85%+ staff adoption. Built high-performance APIs for the CPV application, automating merchant contact information collection and verification, reducing errors and saving valuable time.

Key Achievements

10 min
Loan Disbursement TTM
100K+
Users Served
99.9%
System Uptime
70%
TAT Reduction

Key Projects

💰

Shubidha

Digital Lending Platform - Bangladesh's First

The first-ever end-to-end digital lending application in the country. Shubidha automatically processes loan applications through automated workflows, delivering disbursement decisions within 10 minutes—a breakthrough for fintech in Bangladesh.

  • Automated NID Verification
  • CPV (Merchant Verification)
  • Deduplication Engine
  • Sanction Screening
  • CIB Processing
  • Real-time Decision Making
  • First Digital Signature Facility in Bangladesh
Loan Disbursement: 10 min
Automation Rate: 95%+
Users Onboarded: 100K+
📱

Obichol App

Mobile Loan Management for Bank Staff

Mobile-first application enabling bank staff to initiate and track loan requests on-the-go. Provides real-time updates on loan status, significantly reducing TAT for loan requests, approvals, and disbursements. Improves overall customer experience through seamless staff workflows.

  • On-the-go Loan Initiation
  • Real-time Status Tracking
  • Staff Dashboard & Analytics
  • Push Notifications
  • Offline Support
  • Mobile-First Design
  • Automated Reporting
TAT Reduction: 50%
Staff Adoption: 85%+
Daily Requests: 5K+
🔍

CPV Application

Merchant Contact Point Verification System

High-performance API system automating merchant contact information collection and verification for BRAC Bank's lending pipeline. Eliminates manual data entry errors, accelerates the CPV stage of loan processing, and integrates directly into the Shubidha disbursement flow.

  • Automated Contact Collection
  • Multi-channel Verification
  • Error Detection & Deduplication
  • Real-time Status Updates
  • Lending Pipeline Integration
  • Audit Trail & Reporting
Data Errors: Significantly Reduced
Process: Fully Automated
Pipeline: Shubidha Integrated

Tech Stack

.NET Core Microservices Kafka PostgreSQL Redis Docker Kubernetes Azure

Inflack Limited

Senior Software Engineer — Part-time Contract

📍 15 Bashundhara Rd, Dhaka, Bangladesh • Mar 2020 - May 2021 (1 yr 3 mos) · Concurrent with Mediasoft

As Lead Backend Developer for the Directory App serving the Bangladesh Roads and Highways Department (RHD), I engineered a mission-critical system for government operations. Developed robust backend infrastructure handling authorization, data management, and reporting requirements for a national-scale application.

Project Highlights

RHD
Government Client
National
Scale Deployment
Leader
Backend Architecture
Proven
Reliability Record

Directory App - RHD

Engineered the backend infrastructure for a comprehensive directory application serving the Bangladesh Roads and Highways Department. The system provides critical functionality for road network management, asset tracking, and departmental operations at a national scale.

Key Responsibilities:
  • Designed and implemented scalable REST API architecture
  • Managed database design and optimization for large datasets
  • Implemented authorization and security mechanisms
  • Built reporting and data export functionality
  • Ensured system reliability and uptime for government operations
  • Coordinated with government stakeholders and teams

Technology Stack

.NET ASP.NET Core C# SQL Server REST API Authorization Data Management

Mediasoft Data Systems Ltd

Senior Software Engineer

📍 BDDL Bhaban (5th Floor) 12 Kazi Nazrul Islam Avenue, Dhaka, Bangladesh • Sep 2013 - Jul 2021 (7 yrs 11 mos)

Over 7 years at Mediasoft, I designed and developed enterprise-grade ERP and business management solutions across diverse industries. Led full-stack development from architecture design to production deployment, serving clients ranging from retail to healthcare sectors.

Career Highlights

6+
Major Projects
7+ yrs
Industry Experience
10+
Enterprise Clients
100%
Client Satisfaction

Enterprise Projects

🏪

Wholesale & Distribution

Supply Chain Management System

Comprehensive supply chain management system for wholesale and distribution businesses, streamlining operations from warehouse to retail.

  • Customer Management & Profiles
  • Superior Supply Chain
  • Inventory Management
  • Damage & Lost Adjustment
  • Purchase Order (PO) System
  • Advanced Reporting
Tech Stack: ASP.NET WEB API • C# • Angular • Entity Framework • SQL Server • Crystal Reports
🍽️

Restaurant Management

Integrated POS & Operations System

Full-featured restaurant management system with tab-based ordering, kitchen display systems, and comprehensive POS functionality.

  • Tab-based Ordering System
  • Table Management
  • KOT/KDS (Kitchen Ticket/Display)
  • Inventory Management
  • Point-of-Sale (POS)
  • Discount & Promotions
  • Customer Information DB
Tech Stack: WPF • Windows Forms • WEB API • C# • Entity Framework • SQL Server • Crystal Reports
🍰

Bakery Management

Production & Quality Control System

Specialized bakery management system covering production scheduling, quality assurance, and warehouse operations.

  • Accounting & Financials
  • Batch Production
  • Inventory Management
  • QC/QA (Quality Control)
  • Warehouse Management
  • Batch Tracking
  • Financial Reports
Tech Stack: ASP.NET • C# • Entity Framework • SQL Server • Crystal Reports
💼

Financial Accounting

Multi-Company Accounting System

Enterprise accounting management system supporting multi-company operations with cost and profit center management.

  • Supplier & Customer Management
  • Invoicing System
  • Payment Processing
  • Bank Account Management
  • Multi-Company Support
  • Cost/Profit Center
  • Financial Reports
Tech Stack: ASP.NET • C# • Entity Framework • SQL Server • Crystal Reports
🏥

Hospital Management

Healthcare Information System

Comprehensive hospital management system covering patient care, medical records, billing, and pharmacy operations.

  • Patient Management
  • Medical Records Database
  • Billing System
  • Appointment & Scheduling
  • Doctor Management
  • Pharmacy Management
  • OPD System
Tech Stack: Silverlight • C# • Entity Framework • SQL Server • Crystal Reports
💅

Salon & Spa POS

Service Management & POS

Specialized POS system for beauty and wellness businesses with membership and advanced booking capabilities.

  • Membership Management
  • Advanced Booking System
  • Service Scheduling
  • Inventory Management
  • Point-of-Sale
  • Customer Profiles
  • Service Reports
Tech Stack: Windows Forms • C# • Entity Framework • SQL Server • Crystal Reports

Core Competencies

ASP.NET / WEB API C# Entity Framework SQL Server Angular WPF Windows Forms Crystal Reports
Active Lifestyle

Wellness Fuels Performance

Physical training isn't a hobby — it's an operating system for sharper engineering.

⚡ Mental Clarity 🧠 Cognitive Edge 💪 Resilience Building ⚖️ Work-Life Balance 🚀 Sustainable Output 🎯 Deep Focus
🚴
Cycling
5,081km
612 rides all-time

Long-distance rides build strategic patience and mental resilience — essential skills for complex system design and architecture decisions.

🏃
Running
3,366km
1,036 runs all-time

Marathons teach persistence. Breaking 42 km into segments directly mirrors how I break large engineering challenges into solvable components.

🏊
Swimming
97.6km
237 swims all-time

The meditative flow state of swimming mirrors deep-work sessions — both require total focus, rhythmic consistency, and letting go of noise.

View Full Strava Profile →
Strava · Live Sync

Live Performance Metrics

Real-time data pulled directly from Strava — every session tracked.

Connecting to Strava…
Let's Connect

Get In Touch

Feel free to reach out for opportunities or collaborations

📧 Email

mitul.cse@gmail.com

📱 Phone

+88 01717 785417

Connect On

GitHub LinkedIn Stack Overflow