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

Rakuten india

SDE 2

Jul 2023 – Jun 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 2020 – Jul 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