Java App Performance Issues in Production

Recently, I worked on improving the performance of a feature by reducing unnecessary database calls in the Spring Boot service layer. The frontend was experiencing slower updates, and after tracing the full flow, we found that multiple queries were being executed where a more optimized approach could be used. By restructuring the service logic and optimizing the query flow, we reduced response time significantly and improved the overall user experience on the React side. This was a good reminder that backend efficiency directly impacts frontend performance, and sometimes the biggest improvements come from optimizing what happens behind the scenes. #JavaDeveloper #JavaFullStackDeveloper #FullStackDeveloper #SoftwareEngineer #SpringBoot #SpringFramework #ReactJS #JavaScript #RESTAPI #BackendDeveloper #FrontendDeveloper #PerformanceOptimization #SoftwareDevelopment #WebDevelopment #CleanCode #SoftwareArchitecture #TechJobs #Hiring #OpenToWork

Recently, I worked on improving error handling between our Spring Boot backend and React frontend. Different API endpoints were returning errors in different formats, which made frontend handling inconsistent and added repetitive logic across multiple components. To solve this, we introduced a standardized error response structure with consistent status codes and clear messages across all APIs. This made it easier for the frontend to handle errors in a predictable way and reduced duplicate code. The result was cleaner React components, simpler debugging, and a more maintainable application overall. Small architectural improvements like this can make a big difference in full stack development. #JavaDeveloper #JavaFullStackDeveloper #FullStackDeveloper #SoftwareEngineer #SpringBoot #SpringFramework #ReactJS #JavaScript #RESTAPI #BackendDeveloper #FrontendDeveloper #SoftwareDevelopment #WebDevelopment #CleanCode #SoftwareArchitecture #TechJobs #Hiring #OpenToWork

Not getting a job despite applying daily is frustrating. For the past few weeks, I’ve been actively applying, reaching out, and improving my skills. Instead of giving up, I decided to: ✅ Build stronger projects ✅ Improve my backend skills ✅ Stay consistent I believe consistency will pay off. If you’re hiring a Full Stack Developer (Node.js + React + Python) or can refer me, I’d really appreciate it 🙏 #OpenToWork #JobSearch #Developers #Consistency

Ever wondered how Node.js handles raw data under the hood? 🤔 Let’s simplify it 👇 🔹 Buffer in Node.js A Buffer is used to handle raw binary data directly in memory. It helps convert non-readable binary data into a format we can process. 💡 Common use cases: File uploads 📁 Reading files from disk Handling network streams 🔹 Streams in Node.js Streams process data chunk by chunk instead of loading everything at once. ⚡ Efficient for: Large files Real-time data processing Reducing memory usage 👉 Important: Streams internally use Buffers to read and process data in chunks. 🧠 In short: Buffer = Raw data in memory Stream = Efficient way to process that data Master these, and you unlock real backend performance 🚀 💼 Also — I’m currently Open to Work and an Immediate Joiner. If you’re hiring for Backend (preferred) / Full Stack / Frontend roles, I’d love to connect! #NodeJS #BackendDevelopment #JavaScript #WebDevelopment #FullStack #Programming #Developers #Tech #Coding #SoftwareEngineering #opentowork #immediatejoiner

Breaking into tech as a junior developer is not easy — and that’s something we don’t talk about enough. You apply to dozens of roles, face rejections, and often see “junior” positions asking for +6 years of experience. It can feel frustrating. 𝐁𝐮𝐭 𝐡𝐞𝐫𝐞’𝐬 𝐰𝐡𝐚𝐭 𝐈’𝐯𝐞 𝐥𝐞𝐚𝐫𝐧𝐞𝐝: 𝐄𝐯𝐞𝐫𝐲 𝐩𝐫𝐨𝐣𝐞𝐜𝐭 𝐦𝐚𝐭𝐭𝐞𝐫𝐬. 𝐄𝐯𝐞𝐫𝐲 𝐛𝐮𝐠 𝐲𝐨𝐮 𝐟𝐢𝐱, 𝐞𝐯𝐞𝐫𝐲 𝐭𝐞𝐬𝐭 𝐲𝐨𝐮 𝐰𝐫𝐢𝐭𝐞, 𝐞𝐯𝐞𝐫𝐲 𝐀𝐏𝐈 𝐲𝐨𝐮 𝐛𝐮𝐢𝐥𝐝 — 𝐢𝐭 𝐚𝐥𝐥 𝐚𝐝𝐝𝐬 𝐮𝐩. In my journey, working with technologies like Angular, Spring Boot, and Playwright has helped me not only build applications but also understand quality, scalability, and real-world systems . The key is to stay consistent, keep learning, and keep building — even when no one is watching. Opportunities come, but preparation is what makes you ready for them. If you’re a junior dev going through this: you’re not alone. Keep going. 🚀 #OpenToWork #JuniorDeveloper #SoftwareEngineer #TechCareers #DevJourney #ContinuousLearning #WebDevelopment #BackendDeveloper #FullStackDeveloper

🚀 Leveling Up My Node.js Skills — Promises → Async/Await While building my backend projects, I realized how important it is to write clean and scalable async code. One major shift? Moving from callbacks → Promises → async/await. 👉 Example: function fetchOrders() { return new Promise((resolve, reject) => { setTimeout(() => resolve("Orders fetched"), 1000); }); } async function getOrders() { try { const data = await fetchOrders(); console.log(data); } catch (err) { console.error(err); } } getOrders(); 💡 What I learned: ✔ Promises make async code manageable ✔ async/await makes it even more readable ✔ Proper error handling is a must in real-world apps 📦 Applied this in my project: Restaurant Reservation API (Node.js + MongoDB + Docker) 🔗 GitHub: https://lnkd.in/duGMX_R4 Currently looking for opportunities in Node.js / Backend Development roles. If you're hiring or know someone who is, let’s connect 🤝 #NodeJS #BackendDeveloper #JavaScript #OpenToWork #Hiring #WebDevelopment