● Open to Work

Sabin Khader

Java Developer
Bangalore

About Me

Java Backend Developer with 3+ years of hands-on experience designing and delivering production-grade RESTful APIs and microservices-based web applications using Java and Spring Boot. Experienced in API design, relational database integration, backend performance optimization, third-party system integration, and Agile delivery in cross-functional teams.

Skills & Technologies

JavaSQLPythonJavaScriptSpring BootSpring MVCREST API DesignMicroservices ArchitectureHibernate/JPAAPI IntegrationException HandlingService Layer DesignPostgreSQLMySQLRelational Schema DesignQuery OptimizationDatabase NormalizationGoogle Cloud Platform (GCP)GitHubSVNMavenPostmanNetBeansJUnit 5Manual API TestingExt JSPySparkHadoopSparkPower BIAgileScrumSDLCSprint PlanningRetrospectivesDatabase Management Systems – NPTELArchitecting with Google Compute Engine SpecializaPython Programming – ICT Academy

Work Experience

Software Developer

Bayasys InfoTech
Jul 2020Jan 2022

Designed and developed RESTful backend APIs using Java and Spring Boot, improving backend maintainability and reducing API load times by 30%. Engineered microservices-based solutions, enhancing application performance by 25%. Integrated a third-party tax calculation engine, reducing errors by 15%. Managed database layers with Hibernate, optimizing queries and schema changes.

Data Analyst

Genesta Georgian LLP (SRSL)
Jan 2023NOW

Managed large-scale operational datasets, ensuring data integrity for reporting. Automated SQL-based reporting workflows, saving 1 hour daily. Conducted data validation and transformation to improve accuracy, and extracted actionable insights for strategic planning.

Projects

Big Data Email Network Analysis

Built a distributed data processing pipeline using PySpark on Hadoop to ingest, clean, and transform the Enron email dataset at scale, extracting sender-recipient relationship graphs and metadata for analytical querying.

PySparkHadoopPython

Twitter Data Analytics

Designed and normalized a relational database schema from raw, denormalized Twitter data, applying 3NF normalization principles to eliminate data redundancy and improve query performance.

PostgreSQLSQL

Human Action Recognition

Built a frame-level feature extraction and preprocessing pipeline for video classification, handling raw video data ingestion, transformation, and structured model input preparation at scale on the UCF101 dataset.

PythonTensorFlow/KerasUCF101

Education

MSc Data Science and Analytics

Data Science

Royal Holloway, University of London2022 - 2023

B.Tech Computer Science and Engineering

Computer Science & Engineering

APJ Abdul Kalam Technological University2016 - 2020
Sabin Khader - Java Developer | HiringAnt