Mahbubul Alam
Senior Full-Stack Engineer @ Barakah Tech Zone
Sylhet, Bangladeshmahbubulalam5676@gmail.com+880 1906 043504
linkedin.com/in/dearmahbubul · github.com/dearmahbubul
Profile
Full-Stack Developer & Technical Lead with 7+ years of experience building enterprise SaaS platforms, scalable backend architectures, and modern AI integrations. Working across Laravel, Node.js, Python, and React Native, I focus on delivering end-to-end applications backed by RAG architecture, AI Frameworks (LangChain/LlamaIndex), MCP (Tool & Data Integration), and Autonomous Agents. I actively incorporate AI into my daily engineering workflow to streamline requirements analysis, technical planning, system architecture, coding, automated testing, and code reviews. Reliable in high-growth environments, with strong hands-on experience in Docker, Kubernetes, database design (SQL/NoSQL/Vector), and CI/CD. Open to global remote opportunities across all time zones.
Experience
Senior Full-Stack Engineer
Barakah Tech Zone · Full-time · Sylhet, Bangladesh · Remote- Led technical strategy and delivery across 12 production systems, managing 4 engineers and serving clients across 13+ countries—reducing average delivery time by 30%.
- Architected and delivered complex e-commerce workflows covering storefronts, checkout, payments, inventory, and order processing—handling 1,800 orders/month with 22% lower checkout drop-off.
- Shipped three cross-platform SaaS products serving 15,000+ users at 99.9% uptime.
- Introduced AI agents using OpenAI Codex and Anthropic Claude to automate code generation, testing, debugging, and technical analysis.
- Standardized containerized CI/CD with AWS ECR, ECS, and Load Balancers across projects, reducing deployment time from 45 to 8 minutes.
Senior Full-Stack Engineer
Matchable · Full-time · Dubai, United Arab Emirates · Remote- Built an AI-powered RAG matching system — improving match precision from 61% to 89% and reducing manual screening by 45%.
- Architected real-time video conferencing and chat supporting 200 concurrent sessions, with secure assessments and automated cheating detection.
- Re-architected a large application into a modular monolith and unified monorepo, integrating NestJS and Next.js with Hexagonal Architecture and SOLID principles—reducing release cycles from 3 weeks to 2 days.
- Led 6 developers across 14 sprints, driving architecture, code reviews, and high-throughput queue processing.
Full-Stack Engineer
Innovation Place BD · Full-time · Mohakhali DOHS, Bangladesh · On-site- Built enterprise healthcare and HR management systems covering electronic patient records, clinical scheduling, appointments, billing, employee management, attendance, and payroll for 900+ staff across 6 facilities.
- Designed accounting, inventory, and ERP systems managing 4,000 SKUs and 2,500 orders/month with integrated SMS/MMS workflows.
- Delivered custom CMS and business applications across 11 client deployments, adapting systems to diverse operational requirements.
- Engineered high-throughput REST APIs handling 250,000 requests/day, using Redis caching, database read replicas, query/index optimization, and asynchronous processing to improve scalability and response times.
Junior Full-Stack Engineer
Orangetoolz · Full-time · Uttara, Dhaka, Bangladesh · On-site- Developed multi-tenant SaaS platforms across CRM, automation, HRM, mapping, and e-commerce, supporting 40 tenants and 6,000+ users.
- Built cross-platform mobile applications and secure backend services serving 25,000+ users.
- Integrated third-party platforms including Zapier, Google Ads, Facebook Ads, and mapping services to automate business and marketing workflows.
- Decomposed a monolithic application into independently deployable microservices with clear service boundaries.
Selected Work
A live learning platform combining real-time classes, assessments and course management for educational institutions.
12,000+ learners · 1,200 concurrent classes
A premium commerce platform with catalog management, payments and reseller support.
1,800 orders/month · 22% lower drop-off
A marketing operations platform that keeps field representatives in front of the right opportunities, week after week.
600 reps · 3× weekly engagement
A pipeline-focused CRM for managing leads, deals and customer relationships with automation at its core.
40 sales teams · 2,500 deals/month
A multi-tenant sales acceleration product with subscription billing and team workspaces.
40 tenants · 6,000+ end users
A recruitment and job-matching platform connecting candidates and employers with intelligent matching.
18,000 candidates · 900 employers
A retail management system covering inventory, sales and supplier operations for retailers — with a React Native mobile app in active development.
120 stores · 4,000 SKUs
An Uber-like field-service platform that connects businesses with local, skilled technicians for onsite technology installation, support and maintenance.
3,000 jobs/month · 450 technicians