ABAyush Bulbuleindaysofsystems.hashnode.dev·6d ago · 16 min readBuilding a Notification System: From Naïve to Production-GradeStack: Node.js · TypeScript · PostgreSQL · BullMQ · RedisUse Case: Food Delivery App (think Swiggy / Zomato)What you'll learn: Why the obvious approach breaks, what replaces it, and how real apps hand00
ABAyush Bulbuleinayushbulbule.hashnode.dev·Jul 1, 2025 · 4 min readAppSec 101: What Every Developer Should Know (but No One Teaches)Imagine a civil engineer designing bridges without learning about load stress or failure points.Now imagine a computer science graduate who’s never been taught how to write secure code.The result?A breach waiting to happen.Yet, most devs graduate wit...00
ABAyush Bulbuleinayushbulbule.hashnode.dev·Sep 1, 2024 · 7 min readMy ION Trading SDE Interview ExperienceIntroduction ION Trading is a global leader in trading and workflow automation solutions, specializing in providing software and technology for financial institutions, corporations, central banks, and governments. Founded in 1999, the company offers ...00
ABAyush Bulbuleinayushbulbule.hashnode.dev·Feb 28, 2024 · 2 min readConfiguring the SSL Certificates on your EC2Configuring SSL Certificates on EC2 with Nginx Securing your web applications with SSL/TLS certificates is essential for protecting user data and ensuring a safe browsing experience. In this guide, we'll walk through the process of configuring SSL ce...00
ABAyush Bulbuleinayushbulbule.hashnode.dev·Oct 29, 2023 · 4 min readDBMS - Assignment No 2.AA] (Employee Schema) Create following tables in MYSQL O Employee( Emp_id, Dept_id, Emp_fname, Emp_lname, Emp_Position, Emp_salary,Emp_JoinDate) O Dept ( Dept_id, Dept_name,Dept_location , ) O Project( Proj_id,Dept_id ,Proj_Name,Proj_Location,Proj_cos...00