Himangshu biswas

Senior Software Engineer

Bengaluru, Karnataka, India5 yrs 5 mos experience
AI EnabledAI ML Practitioner

Key Highlights

  • Led significant performance improvements in financial systems.
  • Engineered robust APIs for scalable applications.
  • Mentored team members and fostered a learning culture.
Stackforce AI infers this person is a Fintech Backend Engineer with strong API development and performance optimization skills.

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Skills

Core Skills

Back-end Web DevelopmentProblem Solving

Other Skills

Database optimizationCode efficiency enhancementsREST APIsFront-End IntegrationKafkaCustom music player developmentUser Interface ImprovementGenerativeAIObject-Oriented Programming (OOP)Android DevelopmentDatabase Management System (DBMS)Java Database Connectivity (JDBC)Spring SecuritySpring BootSpring Framework

About

With over 4.7 years of experience and as a Software Engineer at Rakuten India, I have been leading the performance improvement of the Credit Card system through system redesign, database optimization, and code efficiency enhancements. I have also engineered robust REST APIs for real-time applications, ensuring efficient front-end integration and supporting scalable financial transactions. Additionally, I have implemented stringent unit testing and detailed documentation for system changes, significantly minimizing bugs and ensuring system reliability. I have also utilized Kafka for messaging queues to ensure efficient and reliable data processing. Prior to joining Rakuten, I worked as a Software Engineer at Logituit, where I created a custom music player for Vodafone, resolved video playback issues and improved user interfaces for Eros Now, and contributed to the creation of detailed API documentation and user guides. I am passionate about solving complex problems and delivering high-quality software solutions. I have a Bachelor of Engineering degree in Computer Science from Visvesvaraya Technological University and have completed courses in Computer Science from Scaler and ABC For Technology Training. I am proficient in problem-solving, commercial software, and artificial intelligence.

Experience

Target

Senior Software Engineer

Jun 2025Present · 9 mos · Bangalore Urban, Karnataka, India · Hybrid

Rakuten india

SDE 2

Jul 2023Jun 2025 · 1 yr 11 mos · Bengaluru, Karnataka, India · Hybrid

  • Led a 15 percent performance improvement in Rakuten’s Credit Card system
  • through system redesign, database optimization, and code efficiency enhancements, ensuring daily operational continuity for 30 million + customer.
  • Engineered robust REST APIs for Rakuten Card’s real-time applications, enabling efficient front-end integration and supporting scalable financial transaction.
  • Implemented stringent unit testing and detailed documentation for system
  • changes, significantly minimizing bugs and ensuring system reliability.
  • Utilized Kafka for messaging queues to ensure efficient and reliable data
  • processing.
  • Leading a proof of concept (POC) with CodyAI, to automate code refactoring and unit test generation for Card system. This AI-driven approach, resulted in significant manpower reduction and cost savings for the organization.
  • Key contributor in Rakuten’s Technology Incubation Group, identifying and
  • applying technological innovations to enhance the RCard’s system performance and maintain market competitiveness.
  • Mentored new team members and led technical sessions, fostering a culture of learning and improving team expertise in system development and
  • optimization.
Problem SolvingBack-End Web Development

Logituit

Software Engineer

Oct 2020Jul 2023 · 2 yrs 9 mos · Bangalore Urban, Karnataka, India

  • upcoming page and a revamped plan page, enhancing user experience.
  • Created a custom music player for Vodafone, managing the entire product
  • delivery process with an emphasis on quality coding practices.
  • Resolved video playback issues and improved user interfaces for Eros Now,
  • significantly enhancing the viewing experience.
  • Leveraged Docker and Kubernetes for containerization and orchestration,
  • improving deployment efficiency and scalability.
  • Utilized Git for source control management, ensuring effective version control and collaboration within the development team.
  • Contributed to the creation of detailed API documentation and user guides,
  • ensuring clear communication of technical specifications and usage instructions.
Problem SolvingBack-End Web Development

Education

ABC - Technology Training & Upskilling

Computer Science

Jun 2019Jan 2020

Visvesvaraya Technological University

BE - Bachelor of Engineering — Computer Science

Jan 2015Jan 2019

Rambhola High School - India

12th — science

Jan 2012Jan 2014

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