Overview
Work History
Education
Skills
Certification
Projects
Accomplishments
Timeline
Generic
GAJENDRA Chatopadhyaya

GAJENDRA Chatopadhyaya

Bengaluru

Overview

5
5
years of professional experience
1
1
Certification

Work History

Senior Software Engineer

PayPal
Bengaluru
03.2025 - Current
  • Led the implementation of scalability and geo-expansion for the PPDC “Debit Everywhere” initiative at PayPal, enabling users across multiple regions to seamlessly earn rewards.
  • Designed and maintained payment APIs using JSON and Protocol Buffers (proto), ensuring consistent and efficient communication between microservices.
  • Investigated and resolved live production issues by performing a deep-dive analysis and debugging, using tools like Kibana and CAL.
  • Implemented and tested the orchestrator layer for planning and execution services, streamlined service calls, and ensured reliable end-to-end flows. Used JUnit, Mockito, and Postman for validation.

Senior Engineer - Design and Development

Siemens Healthineers
Bengaluru
08.2021 - 02.2025
  • Integrated REST APIs with the Teamplay web application, performing thorough troubleshooting and debugging for reliable operation.
  • Engineered and sustained dynamic, efficient front-end web applications utilizing Angular, fostering intuitive and reliable user experiences.
  • Streamlined deployment processes via Azure CI/CD pipelines, consistently monitoring system performance for operational excellence, efficiency, and security.
  • Orchestrated application deployments on Azure, analyzing metrics to detect and mitigate anomalies, ensuring system reliability, and scalability.
  • Collaborated with stakeholders to define user requirements, architecting innovative solutions in line with best practices, and agile methodologies.

SDE Intern

Samsung R&D Institute Noida
Noida
05.2020 - 06.2020
  • Engineered a ML model to enhance audio quality during phone calls by reducing noise.
  • Used TensorFlow to train the model with labeled audio datasets.

Education

B. Tech (Computer Science And Engineering) - 7.85 CGPA

Indian Institute of Technology (BHU)
Varanasi, India
05-2021

Central Board of Secondary Education (CBSE) - Class 12th - 91.80 %

Jawahar Navodaya Vidyalaya
Jaipur, Rajasthan
01.2016

Skills

  • Programming languages: C, C, C#, Java, Python, TypeScript, YAML, SQL, and Kusto
  • Tools and technologies: Eclipse, Jupyter, Android Studio, Git, Azure, Kibana, and CAL
  • Frameworks: NET, Angular, Spring Boot, Raptor
  • Other skills: DSA, OOPs, Git, problem solving, DevOps, web development, code review

Certification

  • Complete JAVASCRIPT with HTML5,CSS3 from zero to Expert-2024(UC-6bdbe21e-d1f4-456b-9c79-7ce375bf1d53)

Projects

  • Developed a machine learning tool for human activity recognition using smartphone sensor data, implementing SVM and random forest to classify six distinct activities
  • Simulated information diffusion in social networks using the IC model, identifying log(n) key nodes via centrality measures, and implementing agent-based diffusion on real-world datasets

Accomplishments

  • Consistently recognized for reliability and exceptional performance during critical phases
  • Admitted to the esteemed Super 30 Institute for intensive preparation for the JEE examination
  • Participated in the INSPIRE Program, sponsored by the Ministry of Science and Technology

Timeline

Senior Software Engineer

PayPal
03.2025 - Current

Senior Engineer - Design and Development

Siemens Healthineers
08.2021 - 02.2025

SDE Intern

Samsung R&D Institute Noida
05.2020 - 06.2020

B. Tech (Computer Science And Engineering) - 7.85 CGPA

Indian Institute of Technology (BHU)

Central Board of Secondary Education (CBSE) - Class 12th - 91.80 %

Jawahar Navodaya Vidyalaya

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