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Available for Sr. Engineering Opportunities

APURBO KUMAR

Senior Software Engineer (5+ Years Exp) | Full-Stack & Microservices Architect

Panthapath, Dhaka-1205+880 1732****37apurboka@gmail.com

Executive Summary

Senior Software Engineer with 5+ years of hands-on expertise architecting high-concurrency B2B & B2C platforms, travel engines, fintech systems, and real-time IoT telematics. Specialized in Node.js (NestJS), Express.js, PHP (Laravel), PostgreSQL, MySQL, Redis, REST/GraphQL APIs, Next.js, and React Native mobile apps. Proven track record of delivering 15+ production systems serving corporate partners and hundreds of thousands of active users.

Core Technical Skills

Frontend & Web Architecture

Next.js 14 (App Router), React.js, TypeScript, Tailwind CSS, Redux Toolkit & RTK Query, HTML5 / CSS3 / JavaScript

Backend & Microservices

Node.js & Express.js, NestJS, Laravel (PHP), GraphQL & REST APIs, WebSockets & Socket.io

Mobile Engineering

React Native, AsyncStorage & Local Auth, Push Notifications, Native Bridges & Permissions

Databases & Caching

PostgreSQL, MySQL / MariaDB, Redis, TypeORM & Prisma

DevOps, Cloud & Tools

Docker & Containerization, Nginx & Reverse Proxy, AWS S3 & Cloud Storage, Git, GitHub & Postman

Professional Experience

Sr. Software Engineer

Tripfindy (Impressive Group)

Sep 2023 – Present

Architecting high-traffic B2C travel search engines, NestJS microservices, and GraphQL API gateways with PostgreSQL and Redis.

  • Promoted to Sr. Software Engineer (July 2024) after successfully delivering core TripFindy B2C travel booking platform.
  • Architected backend microservices and API gateways in NestJS & Node.js with normalized third-party GDS/hotel supplier APIs.
  • Built high-performance frontend interfaces using Next.js, React, and RTK Query with state memoization.
  • Designed transaction-aware booking write workflows in PostgreSQL with atomic locks and Redis hot caching.
  • Implemented TicketLagbe B2B corporate agency portal featuring sub-agent deposit ledgers and automated PDF ticketing.

Software Engineer

Impressive Security Ltd. (Impressive Group)

July 2023 – Dec 2023

Engineered comprehensive vehicle management, real-time fleet telemetry, and Bus Rapid Transit (BRT) corridor integration.

  • Contributed to robust system architecture ensuring seamless integration of vehicle management and telemetry features.
  • Engaged in end-to-end SDLC from conceptualization to deployment of efficient and reliable software solutions.
  • Implemented advanced features for real-time fleet monitoring, allowing precise tracking of vehicle location, status, and performance metrics.
  • Successfully integrated the system with Bus Rapid Transit (BRT) corridors, enhancing public transportation efficiency and safety.
  • Developed automated reporting mechanisms providing stakeholders with insightful data on vehicle utilization and maintenance.
  • Implemented robust security measures to safeguard sensitive vehicle data, ensuring industry compliance.

Software Engineer / Web & Mobile Developer

TFP Solutions Bangladesh Ltd. (Versatilo Group)

Sep 2021 – June 2023

Developed cross-platform React Native apps, Laravel backends, social video platforms, and government governance portals.

  • Built Hello Superstars (Web + Mobile App) featuring React.js, React Native, Laravel, MySQL, Socket.io real-time chat, and AWS S3 media storage.
  • Engineered Migration Governance Eco-System (eMGS) recruitment verification portal with Laravel and MySQL.
  • Developed VISA COVID pandemic clearance web & mobile application with automated verification services.
  • Created Happy Center passport management system and JEA (Joypurhat Engineer's Association) web portal.
  • Integrated front-end UI with RESTful APIs, maintained React Native components, and optimized pixel-perfect UI designs.

Production Systems (15 Total)

01 / Production Active

TripFindy (B2C Travel Agency)

Travel / Booking

A next-generation travel technology ecosystem redefining global travel experiences through intelligent flight aggregation, dynamic pricing, hotel integrations, and seamless booking journeys powered by automation and user-centric design.

Next.jsReact.jsTypeScriptNode.jsNestJS

02 / Production Active

Ticket Lagbe (B2B Travel Agency)

Travel / B2B

A high-performance digital ticketing marketplace engineered for speed, scalability, and reliability, enabling users to book transportation, events, and entertainment services with secure transactions, real-time availability, and instant confirmations.

Next.jsReact.jsTypeScriptNestJSNode.js

03 / Production Active

Hello Superstars (Web + Mobile App)

Social / Mobile App

A fan-celebrity interaction mobile & web platform featuring live streaming, instant chat messaging, media upload, and store releases.

React NativeReact.jsJavaScriptLaravelSocket.io

04 / Production Deployed

BRTC Vehicle Management System

Enterprise / Fleet

Comprehensive vehicle control, real-time fleet monitoring, BRT corridor integration, and automated performance reporting.

React.jsTypeScriptNode.jsNestJSSQL

05 / Production Active

AIS-TRAX Management Portal

Enterprise / Recruitment

An AI-powered audit and compliance automation platform enabling organizations to achieve global standards, mitigate risks, and enhance governance through real-time monitoring, intelligent reporting, and scalable cloud-based workflows.

React.jsRTK QueryMUINode.jsNestJS

06 / Production Deployed (Live)

eMGS (Migration Governance Eco-System)

Government / Recruitment

A migration governance and overseas recruitment system managing applicant verification and deployment workflows.

LaravelPHPMySQLjQueryBootstrap

07 / Production Deployed (Live)

VISA COVID (Web + Mobile App)

Healthcare / Travel

A trusted global visa facilitation platform offering end-to-end consultancy, document intelligence, and streamlined processing workflows to ensure efficient, transparent, and hassle-free international travel compliance.

React NativeLaravelPHPMySQLBootstrap

08 / Production Deployed (Live)

HotelLagbe (Hotel Reservation Engine)

Travel / Booking

A comprehensive hotel booking platform delivering curated accommodation experiences through smart search, competitive pricing, and seamless reservation management, designed to simplify both leisure and business travel planning.

Next.jsReact.jsTypeScriptNode.jsNestJS

09 / Production Deployed (Live)

Goti Pay (Fintech Payment Engine)

Fintech / Payment

A robust fintech infrastructure platform delivering secure, scalable, and high-performance digital payment solutions, including merchant services, transaction processing, and financial integrations for modern digital economies.

NestJSNode.jsTypeScriptReact.jsPostgreSQL

10 / Production Active (Live)

Goti SMS (Intelligent SMS Gateway)

Telecom / Messaging

A smart, modern SMS gateway for Masking & Non-Masking SMS, OTP, and notifications. Global reach, 99.9% delivery rate, powerful APIs, and real-time reporting.

Node.jsNestJSLaravelPHPMySQL

11 / Production Deployed (Live)

SimWindy (eSIM Global Roaming)

Telecom / Travel Tech

A global connectivity enabler providing next-gen eSIM and roaming solutions with instant activation, competitive data plans, and seamless cross-border mobile connectivity for international travelers and digital nomads.

Next.jsReact.jsTypeScriptNode.jsREST APIs

12 / Production Deployed (Live)

JemeX Pharma (Healthcare Portal)

Healthcare / Distribution

Leading importer and distributor of premium healthcare products. Supplying 100% authentic medicines for retail and wholesale globally. Committed to quality, reliability, and customer satisfaction in the pharmaceutical industry.

LaravelPHPMySQLHTML5/CSS3Bootstrap

13 / Production Active (Live)

Safety GPS Mobile (Vehicle Tracking App)

IoT / Mobile App

Cross-platform React Native vehicle tracking app featuring live map navigation, geofence alerts, and engine telemetry metrics.

React NativeTypeScriptRedux ToolkitWebSocketsGoogle Maps API

14 / Production Active

TripFindy Mobile (Travel Booking App)

Travel / Mobile App

A comprehensive React Native mobile travel companion for searching hotels, booking flight deals, and instant mobile payment.

React NativeTypeScriptRTK QueryPayment GatewayPush Notifications

15 / Production Active

TicketLagbe Agent (B2B Mobile App)

Travel / B2B Mobile

A B2B ticketing mobile app enabling sub-agents to issue tickets, track wallet credit balances, and generate PDF invoices on-the-go.

React NativeTypeScriptGraphQLAsyncStoragePDF Generator

Education & Qualifications

Bachelor of Science in Computer Science & Engineering (B.Sc. CSE)

Daffodil International University (DIU), Dhaka, Bangladesh

Graduated: 2017 – 2020