Vaibhav Singh

Software Engineer

Jodhpur, Rajasthan, India4 yrs experience

Key Highlights

Expert in building scalable backend systems.
Proficient in Java and multithreading.
Strong experience in real-time logging pipelines.

Stackforce AI infers this person is a Backend Engineer specializing in SaaS applications with a focus on performance and reliability.

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Skills

Core Skills

Back-end Web DevelopmentJava

Other Skills

API DevelopmentAgile/ScrumC++Database ManagementDebuggingHadoopJavaScriptLog4j2MERN stack developmentMultithreadingORCPerformance OptimizationProduction-grade codeSQLTechnical problem solving

About

I’m Vaibhav Singh, a self-driven Software Engineer with hands-on experience in building scalable backend systems, real-time logging pipelines, and full-stack applications. At ZL Tech, I’ve contributed to performance-critical components like asynchronous Log4j2 ORC logging, transaction/statistics aggregation systems, connector development, and distributed file handling—focusing on reliability, multithreading, and clean design. I bring strong fundamentals in Data Structures & Algorithms, C++, Java, JavaScript, SQL, and MERN stack development, paired with practical experience deploying robust APIs and backend modules. My work often involves debugging complex flows, optimizing performance, and writing production-grade, testable code. Beyond backend engineering, I enjoy building user-centric applications, analyzing systems, and solving challenging technical problems end-to-end. I aim to grow into roles where I can create impactful products, design efficient systems, and contribute to data-driven decision-making. If you’re looking for someone who combines fast learning, ownership, and strong engineering discipline—I’d love to connect.

Experience

Zl tech

Member of Technical Staff

Sep 2024 – Present · 1 yr 6 mos · Hyderabad, Telangana, India · On-site

Designed and developed scalable Java backend modules, improving system throughput and reliability.
Implemented custom Log4j2 appenders (including ORC-based log writers) for high-performance, asynchronous logging.
Built real-time API call tracking and statistics aggregation systems to replace on-demand log computation.
Developed features across Traffic Cop / Transaction Monitor including daily rollovers, background task scheduling, retry logic, and file recovery handling.
Worked on connector features (Box, GDrive, Graph, Exchange) including debugging, flow analysis, and implementing enhancements.
Performed development testing and wrote comprehensive unit tests for multithreaded and IO-heavy components.
Collaborated with cross-functional teams following Agile/Scrum practices and contributed to architecture discussions.
Created internal documentation, technical designs, and knowledge-sharing resources for new systems and APIs.
Custom Log4j2 ORC Appender:
Developed a high-performance ORC file writer using a fixed schema, integrated with Disruptor and used across multiple modules for low-latency structured logging.
Transaction Monitor (Stats Aggregation System):
Built a real-time aggregation framework replacing older log-dependent computations; implemented periodic errand flushing, retry strategy, corruption detection, and background processing.
ZLVault Hadoop FileSystem Integration:
Integrated custom ORC writer with ZLVaultHadoopFileSystem; enabled seamless ORC generation required for NGTestCases and large-scale testing.
Daily Rollover & File Recovery Mechanism:
Designed and implemented daily rollovers for trace logs and added robust recovery for partial, locked, or corrupted files.
Connector API Call Logger:
Designed an aggregated API interaction logger to store performance metrics in a dedicated table, improving analysis speed significantly.