Harshit .

Java Backend Developer | Spring | Spring Boot | REST APIs | React Native | Git | Kafka | Improving efficiency with AI‑powered development tools | 3.5+ Years Of Experience

Delhi, India

About

Strong in Data Structures and Algorithms—basically my version of a daily workout for the brain. Problem-solving isn’t just a skill, it’s more like second nature. Proficient in Java, Spring Boot, and a bunch of modern technologies that go beyond buzzwords and actually deliver results. With three years of experience in software development, I’ve realized that writing code is easy, but writing code that solves real business problems efficiently is where the real game begins. I enjoy building innovative projects, experimenting with ideas, and fine-tuning solutions until they’re as effective as they are elegant. Currently shaping my career towards becoming the kind of software engineer every technology-driven firm values—skilled, curious, a little witty, and always focused on impact.

Experience

  • HCLTech (1 yr 11 mos)
    • Java Developer
      Sep 2024 - Present · 1 yr 11 mos

    • Software Engineer
      Sep 2024 - Present · 1 yr 11 mos

      Optimized MySQL database performance by implementing JPA/Hibernate relationship mappings, reducing redundant database calls and improving overall system efficiency by 25%. Resolved 100+ MongoDB query and business logic issues while developing 100+ MongoDB expressions for healthcare applications, improving application performance, data processing efficiency, and system reliability. Implemented Spring Security with JWT Authentication and stateless architecture to secure RESTful APIs and Microservices, ensuring secure user authentication, authorization, access control, and backend communication. Developed scalable microservices and business-critical features using Java 8/17, Spring Boot, Hibernate, Kafka, MongoDB, MySQL, REST APIs, and Spring Scheduler (Cron Jobs), improving application performance and user experience. Took ownership of critical modules, independently resolving 150+ bugs and delivering 30+ features within six months, contributing to application stability, scalability, and production support.

  • Backend Developer at HDOR Events Pvt Ltd
    Mar 2023 - Sep 2024 · 1 yr 7 mos

    Designed and implemented RESTful APIs using Java, Spring Boot, Hibernate, JPA, and MySQL for integration with Strava and Fitbit. Implemented OAuth 2.0 and JWT authentication to enable secure user authorization and data synchronization, improving interoperability between external systems and backend services. Developed and optimized a webhook notification system using Java, Spring Boot, MongoDB, and MySQL for real-time event processing and data management. Integrated Samsung Health SDK with Android applications using Java and Android Studio to support health and fitness tracking features.

  • Full-stack Developer at UTOPIIC
    Oct 2022 - Feb 2023 · 5 mos

  • SeeWare Technosoft (1 yr 7 mos)
    • Co-Founder
      Aug 2020 - Feb 2022 · 1 yr 7 mos

      college Startup

    • Co-Founder
      Aug 2020 - Feb 2022 · 1 yr 7 mos