Riyad Hossain

Backend Engineer

Acote Group • Full-time

Nov 2025 - Present • 6 mos

Backend Engineer (NodeJS, NestJS, PostgreSQL, Prisma & AWS) ⚡🖥️ At Acote Group, a Korean software agency 🚀, I work on building secure, scalable backend systems for modern web applications and client platforms. My role focuses on designing production-ready APIs ⚙️, architecting robust database systems 🗄️, and implementing high-performance backend infrastructures that align with real-world business needs. ✅ 𝙎𝙚𝙘𝙪𝙧𝙚 𝙨𝙮𝙨𝙩𝙚𝙢 𝙖𝙧𝙘𝙝𝙞𝙩𝙚𝙘𝙩𝙪𝙧𝙚: Designed and implemented authentication & authorization systems using JWT, Refresh Tokens, OAuth2.0, and RBAC — ensuring secure access control and scalable session management across applications 🔐 🗄️ 𝘿𝙖𝙩𝙖𝙗𝙖𝙨𝙚 𝙙𝙚𝙨𝙞𝙜𝙣: Engineered normalized relational schemas with optimized indexing and relationships, improving data integrity and enabling high-performance query execution 📊 ⚡ 𝙋𝙚𝙧𝙛𝙤𝙧𝙢𝙖𝙣𝙘𝙚 𝙤𝙥𝙩𝙞𝙢𝙞𝙯𝙖𝙩𝙞𝙤𝙣: Boosted API speed and scalability through pagination, Redis caching, and asynchronous processing using message queues — delivering faster and more reliable data services 🚄 🛡️ 𝙎𝙚𝙘𝙪𝙧𝙞𝙩𝙮 & 𝙧𝙚𝙡𝙞𝙖𝙗𝙞𝙡𝙞𝙩𝙮: Strengthened platform security with input validation, centralized error handling, encrypted credentials, and rate-limiting — reducing vulnerabilities and improving system resilience 🔒 🐳 𝘿𝙚𝙫𝙊𝙥𝙨 & 𝘿𝙚𝙥𝙡𝙤𝙮𝙢𝙚𝙣𝙩: Containerized applications using Docker and implemented CI/CD pipelines, streamlining build, testing, and deployment workflows ⚙️ 📘 𝘿𝙤𝙘𝙪𝙢𝙚𝙣𝙩𝙖𝙩𝙞𝙤𝙣 & 𝘾𝙤𝙡𝙡𝙖𝙗𝙤𝙧𝙖𝙩𝙞𝙤𝙣: Created interactive API documentation with Swagger & Postman, enabling smoother frontend integration and faster developer onboarding 🤝 Working at Acote Group has strengthened my expertise in backend architecture, system scalability, and secure API development — while giving me hands-on experience delivering solutions for international clients 🌍🚀

Backend Developer

Immabeme Solution Ltd. • Full-time

May 2022 - Oct 2023 • 1 yr 5 mos

Backend Developer (Node.js & MongoDB) 🧠💻 At Immabeme Solution, a product-based IT startup 🚀, I was tasked with building and optimizing scalable backend systems to meet business requirements. My role centered around creating RESTful APIs ⚙️, utilizing NoSQL databases (MongoDB 🍃), and solving complex performance-related issues to ensure seamless application functionality 🔧. ✅ 𝙊𝙥𝙩𝙞𝙢𝙞𝙯𝙚𝙙 𝙥𝙚𝙧𝙛𝙤𝙧𝙢𝙖𝙣𝙘𝙚: Reduced API response times by 30% by implementing efficient query handling techniques and optimizing database interactions in MongoDB. 🐞 𝙋𝙧𝙤𝙗𝙡𝙚𝙢-𝙨𝙤𝙡𝙫𝙞𝙣𝙜 𝙖𝙣𝙙 𝙙𝙚𝙗𝙪𝙜𝙜𝙞𝙣𝙜: Debugged 100+ critical bugs, improving system stability by 25% and ensuring smooth user experiences through rigorous debugging practices. 🧩 𝙁𝙚𝙖𝙩𝙪𝙧𝙚 𝙙𝙚𝙫𝙚𝙡𝙤𝙥𝙢𝙚𝙣𝙩: Designed and developed RESTful Waiter APIs to enhance communication between customers and restaurant staff, improving operational efficiency by 20%. 🤝 𝘾𝙤𝙡𝙡𝙖𝙗𝙤𝙧𝙖𝙩𝙞𝙤𝙣: Worked closely with client-side developers to accelerate development and ensure timely project delivery. My experience at Immabeme Solutions allowed me to sharpen my skills in working with REST APIs, NoSQL databases, and problem-solving 🧠, preparing me to tackle more challenging backend engineering roles in the future 🚀.