Jayashankar M
Senior Java Backend Engineer • Bengaluru, India • s***********@gmail.com • +91*******094 • linkedin.com/••••• • drivetube.ai/•••••
Professional Summary
Senior Java Backend Engineer with 10+ years of experience designing and delivering Java-based enterprise applications for banking and healthcare. Strong experience building Spring Boot microservices, RESTful APIs, and JPA-based domain models using Java 8–21. Hands-on with cloud-native deployments and CI/CD using AWS, Docker, Kubernetes, Jenkins and Maven to ship production services. Implemented secure service authentication and authorization with Spring Security, OAuth2 and JWT. Built event-driven components using Apache Kafka and optimized relational schemas and queries in PostgreSQL, MySQL and Oracle. Experienced in full-stack delivery with Angular frontends integrated to backend services and in leading API design, performance tuning, and production support. Seeking Senior Java Backend roles focusing on microservices, cloud migration and resilient payment/transaction systems.
Technical Skills
Programming Language: Java,SQL
Frontend Technologies: Angular
Backend Technologies: Spring Boot,Spring MVC,Spring Security,Hibernate,JPA
Databases: PostgreSQL,MySQL,Oracle
Cloud Platforms: Amazon Web Services
Version Control & Development Tools: Maven,Git
DevOps & Infrastructure: Docker,Kubernetes,Jenkins,Continuous Integration,Apache Kafka
API & Integrations: RESTful APIs
Architecture & Design Patterns: Microservices
Identity & Access Management (IAM): JWT
DevSecOps & Security Automation: SonarQube
Project Management & Collaboration: Agile,Scrum
Work Experience
Wipro Technologies
Bengaluru
Senior Java Full Stack Developer
09/2020 – Present
Delivered backend and full-stack features for enterprise banking applications—account management, transaction processing and customer operations.
Tech Stack: Spring Boot, Spring Security, JPA, REST APIs, Microservices, PostgreSQL, Apache Kafka, Docker, Kubernetes, Jenkins, Maven, Angular, OAuth2, JWT
- Architected domain-driven Spring Boot microservices for account and transaction processing and modeled persistence with JPA to support modular banking workflows.
- Implemented event-driven transaction flows using Apache Kafka to decouple processing services and improve resilience for payment pipelines.
- Developed RESTful APIs and integrated Angular frontends, documenting endpoints and request/response schemas with Swagger.
- Hardening authentication and authorization using Spring Security with OAuth2 and JWT to secure customer and service-to-service access.
- Optimized PostgreSQL queries and database indexes to reduce query latency and improve throughput for account reconciliation routines.
- Containerized microservices with Docker and deployed to Kubernetes; implemented Jenkins pipelines and Maven builds to automate CI/CD.
Integra Micro Systems
Bengaluru
Senior Java Developer
06/2019 – 09/2020
Built backend services and REST APIs for healthcare management applications including patient management and clinical workflows.
Tech Stack: Spring Boot, Hibernate, JPA, REST APIs, Angular, MySQL, Git, Maven
- Designed and implemented Spring Boot REST APIs for patient management and care workflows, modeling DTOs and validation constraints.
- Implemented data access layers using Hibernate and JPA to manage clinical entities and transactional consistency.
- Built integration endpoints consumed by Angular frontends to expose healthcare workflows and patient views.
- Improved MySQL schema performance through indexing and query refactoring to reduce slow-running report queries.
- Resolved production incidents and conducted root-cause analysis for backend services to improve uptime and reliability.
- Automated builds and deployments using Git and Maven to standardize release processes across environments.
Medibox Technologies
Bengaluru
Java Developer
12/2017 – 12/2018
Developed backend modules and migrated legacy components to Spring Boot for enterprise financial and business workflow applications.
Tech Stack: Spring Framework, Spring Boot, Hibernate, REST APIs, SQL
- Developed backend modules using Spring Framework and Hibernate to support financial business workflows and service contracts.
- Migrated legacy Spring applications to Spring Boot to simplify configuration and accelerate deployments.
- Implemented and maintained RESTful web services for application integration with downstream systems.
- Performed debugging, unit testing and defect resolution to improve module stability before production releases.
- Enhanced SQL performance through query tuning and indexing to stabilize transaction processing times.
- Provided production support and incident triage to restore service and implement longer-term fixes.
UST Global
Bengaluru
Java Developer
12/2016 – 09/2017
Contributed to enterprise web application development using Spring MVC and Hibernate, delivering reusable modules and integration services.
Tech Stack: Spring MVC, Hibernate, REST APIs, Oracle, SQL
- Developed backend services with Spring MVC and Hibernate to support web-based enterprise workflows and integrations.
- Implemented reusable Java modules and APIs following coding standards to accelerate feature development.
- Integrated REST APIs with client applications and ensured backward-compatible contract changes.
- Improved application stability by enhancing exception handling, logging and defensive validations.
- Optimized Oracle SQL queries and indexing strategies to improve report generation and batch job performance.
- Drove code reviews and QA handoffs to raise code quality and reduce regression defects.
Education
MIT Mysuru
Master of Computer Applications (MCA) • Mysuru, India
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