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Zahid Hasan Mozumder

@zahidhasanmozumder

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Full Stack Engineer at Get Levrgll building HubSpot conversion workflows and landing pages for lead generation.

Bangladesh

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At Get Levrgll, I optimize lead-to-customer conversion workflows using HubSpot CRM and landing pages. I also implemented Google Tag Manager for conversion tracking and maintain the WordPress website for performance, usability, and SEO.

At Buzfi LLC, I built HIPAA-compliant HealthTech backends and scalable REST and GraphQL APIs. I also developed a real-time transport and booking SaaS platform with lifecycle tracking, and designed gRPC microservices with event-driven systems using RabbitMQ and Kafka.

At Genesys Softwares LLC, I engineered RESTful and GraphQL APIs with NestJS, improving response latency by 35%. I integrated third-party APIs to automate 80% of workflows and implemented Cypress testing to support production reliability.

My projects include an AI-powered comic generation platform built with Next.js, NestJS, and PostgreSQL, and a real-time chat application using React.js, WebSockets, Spring Boot, and PostgreSQL. I also worked as a Software Engineer Intern at Battery Low Interactive Ltd., a Data Annotator at Scale AI, and a Programming Trainer at Green University of Bangladesh.

Experience

Work history, roles, and key accomplishments

Current

Full Stack Developer

Current

Get Levrg

Oct 2026 - Present (1 month)

Optimized lead-to-customer conversion workflows using HubSpot CRM and landing pages. Implemented Google Tag Manager for conversion tracking and marketing analytics.

HubSpot Google Tag Manager WordPress SEO Landing Pages Lead Management

Software Engineer II

Buzfi LLC

Jan 2026 - Sep 2026 (8 months)

Built HIPAA-compliant HealthTech backends with secure data handling and audit logging. Developed scalable REST and GraphQL APIs and a real-time transport and booking SaaS platform.

HIPAA REST APIs GraphQL gRPC RabbitMQ Kafka Stripe OpenAI Docker Nginx SSL

Junior Software Engineer

Genesys Softwares LLC

Jan 2025 - Jan 2026 (1 year)

Engineered RESTful and GraphQL APIs using NestJS, improving response latency by 35%. Built a hybrid data layer with PostgreSQL, Prisma, and MongoDB.

NestJS PostgreSQL Prisma MongoDB Shopify Stripe NetSuite Routific Amazon SP API Cypress S3 Docker GitHub Actions EC2 Route 53 Nginx

Software Engineer Intern

Battery Low Interactive Ltd.

Apr 2024 - Jul 2024 (3 months)

Developed full-stack web applications focusing on backend systems with NestJS, PostgreSQL, and Prisma ORM. Implemented JWT and RBAC authentication.

NestJS PostgreSQL Prisma JWT RBAC React Redux React Router Agile

Data Annotator

Scale AI

Aug 2023 - Feb 2024 (6 months)

Annotated large-scale datasets including text, images, and audio to support machine learning model training. Performed data validation and quality assurance checks.

Data Annotation Data Validation Quality Assurance Machine Learning

Programming Trainer

Green University of Bangladesh

Feb 2023 - Jun 2023 (4 months)

Mentored 40+ students in algorithmic problem-solving and competitive programming. Boosted university contest participation by 25% through tailored training sessions.

Algorithms Competitive Programming Mentorship

Education

Degrees, certifications, and relevant coursework

Udemy

AI Engineer Core Track: LLM Engineering, RAG, QLoRA & Agents, Artificial Intelligence

Completed the AI Engineer Core Track: LLM Engineering, RAG, QLoRA & Agents certification in July 2026.

Green University of Bangladesh

Bachelor of Science, Computer Science and Engineering

2020 - 2024

Grade: 3.33/4.00

Activities and societies: Problem Tester at PSTU Intra University Programming Contest 2024; Champion – GUB IDPC 2023 (Individual), 2nd Runner-Up – GUB IDPC 2024 (Team); 2x ACM ICPC Dhaka Regionalist; 1x NCPC - 9x IUPC - 3x Hackathon Participant; Codeforces Specialist (Max Rating: 1492, Contest: 100+), CodeChef 4-Star Coder (Max Rating: 1834, Contest: 40+).

BSc in Computer Science and Engineering from Green University of Bangladesh, completed in 2024 with a CGPA of 3.33/4.00.