11/02/2026 updated
100 % available
Java Backend Developer | Spring Boot | REST APIs | Full-Stack
darbhanga, India
Germany +3
B.Tech in Computer Science and Engineeringinfo: Germany, Russian Federation, France, India
Java Development ToolsSpring FrameworkJava API For RESTful Web Services (JAX-RS)PHP DevelopmentWeb Application DevelopmentSpring CloudSpring BootBackend ProgrammingFull Stack DevelopmentAWS Data AnalyticsSpring Jdbc
Java & Spring Boot Development
Expertise in building scalable backend systems using Java, Spring Boot, Spring MVC, and Spring Security, including role-based authorization and secure REST API development.
REST API & Hibernate (JPA)
Proficiency in designing and implementing RESTful APIs and managing database interactions using Hibernate (JPA), with a focus on performance optimization and reduced system latency.
Data Pipeline & Integration
Hands-on experience building end-to-end data ingestion pipelines using Salesforce Bulk API, HubSpot, ClickHouse, and MinIO, including monitoring UI consoles for pipeline tracking.
Python
Knowledge of Python programming, applied in backend development and data processing tasks.
React JS
Familiarity with React JS for front-end development as part of full-stack project implementations.
MySQL & Database Management
Experience with MySQL for relational database design, query optimization, and backend data management.
Docker & CI/CD
Basic knowledge of Docker containerization and CI/CD pipelines for streamlined software deployment.
Git & GitHub Copilot
Proficient use of Git for version control and GitHub Copilot for AI-assisted development workflows.
Linux & Command Line
Practical experience with Linux commands for server-side operations and development environments.
Blockchain Technology
Foundational knowledge of blockchain technology acquired through a bootcamp at NIELIT Patna via FutureSkills PRIME.
Expertise in building scalable backend systems using Java, Spring Boot, Spring MVC, and Spring Security, including role-based authorization and secure REST API development.
REST API & Hibernate (JPA)
Proficiency in designing and implementing RESTful APIs and managing database interactions using Hibernate (JPA), with a focus on performance optimization and reduced system latency.
Data Pipeline & Integration
Hands-on experience building end-to-end data ingestion pipelines using Salesforce Bulk API, HubSpot, ClickHouse, and MinIO, including monitoring UI consoles for pipeline tracking.
Python
Knowledge of Python programming, applied in backend development and data processing tasks.
React JS
Familiarity with React JS for front-end development as part of full-stack project implementations.
MySQL & Database Management
Experience with MySQL for relational database design, query optimization, and backend data management.
Docker & CI/CD
Basic knowledge of Docker containerization and CI/CD pipelines for streamlined software deployment.
Git & GitHub Copilot
Proficient use of Git for version control and GitHub Copilot for AI-assisted development workflows.
Linux & Command Line
Practical experience with Linux commands for server-side operations and development environments.
Blockchain Technology
Foundational knowledge of blockchain technology acquired through a bootcamp at NIELIT Patna via FutureSkills PRIME.
Experience
Professional experience0 - 5 years
Freelancer since2023
Languages
EnglishFluent
Project history
Built an end-to-end data ingestion pipeline using Salesforce Bulk API v2 to extract accounts and write ORC/JSON files to MinIO. Set up ClickHouse external ingestion auto-populating the bronze_salesforce_accounts table. Developed a parallel HubSpot worker using dlt to ingest Deals and Companies as Parquet files into MinIO. Created the ClickHouse curated view v_client_360_deals joining Salesforce and HubSpot records. Built an ingestion monitoring UI console to track pipeline runs.
Designed and developed a scalable complaint portal using Spring Boot, MySQL, and REST APIs supporting multi-user access. Implemented secure login and role-based authorization using Spring Security, enhancing data protection by 40%. Optimized backend processing and database interactions, reducing system latency by 30%. Enabled real-time complaint tracking and admin resolution workflows, increasing system efficiency by 50%.
Built and deployed an online exam test-series website for BPSC TRE aspirants, live at bpsctretest.site.je.