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Kunal Kumar

Backend Developer | Java | Spring Boot | C++

Greater Delhi Area

1+ year of work experience

InnoBit Systems
Jun 20251 yr 2 mosPresent

Greater Noida

Worked on building high-performance backend systems and microservices using C++ and Java (Spring Boot) with a focus on scalability, reliability, and maintainability. Developed multithreaded system components on Linux using modern C++, applying object-oriented design principles and patterns such as RAII, Factory, Strategy, and Singleton to build modular and extensible services. Designed CMake-based build systems for reproducible deployments and implemented structured logging, real-time CPU and memory monitoring, and secure certificate-based authentication to improve system observability and reliability. Also developed scalable backend services and RESTful APIs using Java, Spring Boot, MongoDB, and MySQL within a microservices architecture. Integrated third-party services including IPQS (fraud detection) and implemented asynchronous messaging using RabbitMQ for event-driven workflows. Actively involved in production troubleshooting, log tracing, performance analysis, and root-cause investigations across distributed services to ensure stable and efficient backend operations.
InnoBit Systems
Dec 20241 yr 8 mosPresent

Developed and maintained scalable Java backend services using Spring Boot, designing RESTful APIs and integrating microservices via gRPC and event-driven architectures. Participated in code reviews, debugging, and performance tuning of Java-based microservices, improving code quality, maintainability, and production stability. Implemented secure authentication and authorization mechanisms including JWT, LDAP, and role-based access control (RBAC) using Spring Security. Managed end-to-end feature development lifecycle using Spring MVC, Hibernate/JPA and led production troubleshooting through log tracing, performance analysis, and root-cause investigation. Engineered production-ready solutions including secure communication (mTLS), multi-environment deployments, and scalable search/configuration systems (OpenSearch, checksum-based configs).
InnoBit Systems
Dec 20247 mosJun 2025

Greater Noida

Education

ABESIT

Bachelor of Technology - BTech, Artificial Intelligence

ABESIT

20214 yrs2025

Bachelor of Technology, Computer Engineering

ABES NV

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Headline

Backend Developer | Java | Spring Boot | C++

About

Experienced in high-performance C++ services and scalable backend systems. Skilled in multithreading, Linux, Java Spring Boot, microservices, RabbitMQ, CI/CD, and performance optimization. Focused on secure, modular, production-ready code.

Location

Greater Delhi Area

Work experience

Member of Technical Staff at InnoBit Systems, Jun 2025 - Present · 1 yr 2 mos, Greater Noida, Worked on building high-performance backend systems and microservices using C++ and Java (Spring Boot) with a focus on scalability, reliability, and maintainability. Developed multithreaded system components on Linux using modern C++, applying object-oriented design principles and patterns such as RAII, Factory, Strategy, and Singleton to build modular and extensible services. Designed CMake-based build systems for reproducible deployments and implemented structured logging, real-time CPU and memory monitoring, and secure certificate-based authentication to improve system observability and reliability. Also developed scalable backend services and RESTful APIs using Java, Spring Boot, MongoDB, and MySQL within a microservices architecture. Integrated third-party services including IPQS (fraud detection) and implemented asynchronous messaging using RabbitMQ for event-driven workflows. Actively involved in production troubleshooting, log tracing, performance analysis, and root-cause investigations across distributed services to ensure stable and efficient backend operations.

Software Engineer at InnoBit Systems, Dec 2024 - Present · 1 yr 8 mos, Developed and maintained scalable Java backend services using Spring Boot, designing RESTful APIs and integrating microservices via gRPC and event-driven architectures. Participated in code reviews, debugging, and performance tuning of Java-based microservices, improving code quality, maintainability, and production stability. Implemented secure authentication and authorization mechanisms including JWT, LDAP, and role-based access control (RBAC) using Spring Security. Managed end-to-end feature development lifecycle using Spring MVC, Hibernate/JPA and led production troubleshooting through log tracing, performance analysis, and root-cause investigation. Engineered production-ready solutions including secure communication (mTLS), multi-environment deployments, and scalable search/configuration systems (OpenSearch, checksum-based configs).

Trainee at InnoBit Systems, Dec 2024 - Jun 2025 · 7 mos, Greater Noida

Education

Bachelor of Technology - BTech, Artificial Intelligence, ABESIT

Bachelor of Technology, Computer Engineering, ABES NV