Available to hire
Hi, I’m Kalyan, a Senior Full Stack Developer with 8+ years of experience building scalable web applications using Java, Node.js, and React.
I specialize in developing high-performance backend systems, RESTful APIs, and modern frontend interfaces. I’ve worked with leading organizations like JPMorgan Chase, Manulife Bank, and CITCO, delivering reliable solutions in fintech and enterprise environments.
I help clients design and build end-to-end applications, optimize database performance, and modernize systems using microservices architecture. I’m comfortable working in Agile, distributed teams and collaborating directly with stakeholders to turn business requirements into efficient technical solutions.
I focus on writing clean, maintainable code and delivering projects on time with strong communication and accountability.
Let’s build something impactful.
Available for part-time and contract opportunities.
Skills
Language
English
Fluent
Work Experience
Software Engineer — Full Stack (Java/ReactJS) at JPMorgan Chase & Co.
February 1, 2025 - PresentDesigned and developed scalable RESTful APIs using Java Spring Boot and Node.js for enterprise-grade financial services platforms, processing over 500K daily transactions with sub-100ms response time SLAs. Built dynamic, responsive ReactJS frontend modules integrated with backend microservices, reducing client-reported UI defects by 35% through component reusability and thorough unit testing. Architected microservices components adhering to domain-driven design (DDD) principles, enabling independent deployability and horizontal scalability across AWS infrastructure. Optimized complex SQL queries and MongoDB aggregation pipelines, reducing average query execution time by 40% and improving report generation performance. Implemented serverless architectures using AWS Lambda functions and API Gateway configurations for serverless event-driven workflows, reducing infrastructure overhead by 25%. Integrated third-party financial data APIs with robust error handling, retry logic, and circuit-b
Java Developer / Full Stack Developer at Manulife Bank of Canada
March 1, 2023 - January 31, 2025Developed core banking application features using Java 11 and Spring Boot, supporting mortgage and deposit products for over 2 million active customers. Built RESTful APIs and data access layers with Spring Data JPA and Oracle DB, ensuring ACID compliance and high throughput for financial transactions. Created ReactJS customer-facing components for online banking portals, improving UX scores by 28%. Implemented MongoDB document storage for customer preferences and audit logs, enabling flexible schema evolution without downtime. Performed query profiling and indexing on PostgreSQL and Oracle, resolving N+1 query problems and reducing page load times by up to 45%. Collaborated with security to implement OAuth 2.0 and JWT authentication flows; automated regression test suites with JUnit and Selenium; contributed to AWS migrations of monolithic modules to independently deployable Spring Boot microservices on EC2/ECS. Produced API documentation using Swagger/OpenAPI specifications; on-call
Software Developer — Java / Node.js at CITCO
August 1, 2021 - February 28, 2023Developed back-office fund administration automation tools using Java Spring MVC and Node.js, processing hedge fund NAV calculations for portfolios exceeding $500B AUM. Built RESTful microservices for trade data ingestion and reconciliation pipelines, handling millions of records per batch cycle with high reliability. Designed SQL stored procedures and optimized data warehousing queries in PostgreSQL to support complex financial reporting across multiple fund structures. Integrated third-party market data vendors via API connectors built in Node.js, ensuring real-time pricing feeds with failover and retry mechanisms. Developed ReactJS dashboards for fund operations teams, enabling real-time monitoring of trade settlement status and exception queues, cutting manual escalations by 30%. Participated in Agile ceremonies and contributed to sprint planning, backlog grooming, and retrospective sessions to continuously improve delivery velocity. Wrote comprehensive unit tests and performed pee
Application Developer — Java / Full Stack at Empire Life
July 1, 2020 - July 31, 2021Developed policyholder self-service features on the life insurance digital platform using Java Spring Boot and ReactJS, enabling online policy management for 300K+ customers. Designed and implemented RESTful APIs for claims submission workflows, integrating downstream adjudication systems with robust input validation and error handling. Enhanced MySQL database schema and wrote optimized queries for policy and premium data retrieval, reducing average page response time by 32%. Contributed to migrating legacy JSP-based pages to modern ReactJS SPA components, improving load performance and maintainability. Implemented caching using Spring Cache and Redis to reduce redundant database calls for frequently accessed policy reference data. Supported Jenkins-based CI/CD pipelines and Docker containerization, ensuring seamless integration testing and zero-downtime deployments for bi-weekly releases.
Programmer Analyst — Java / Backend Development at Nestlé
April 1, 2018 - July 31, 2020Developed and maintained Java-based backend services for Nestlé’s supply chain and inventory management platforms, supporting global operations across 15+ markets. Built RESTful APIs using Spring Boot to facilitate real-time inventory synchronization between ERP systems (SAP) and digital fulfillment platforms. Designed and optimized SQL schemas and stored procedures on Oracle Database for batch data processing; automated data transformation and loading processes using Java batch jobs, reducing manual data entry effort by over 70%. Performed root cause analysis on production defects and implemented permanent fixes reducing recurring incident volume by 50%. Documented API contracts and data flows; supported testing and UAT cycles; prepared technical documentation and contributed to knowledge transfer.
Education
Graduate Certificate, Web Development at Conestoga College, Doon Campus
January 11, 2030 - April 20, 2026Graduate Certificate in Web Development at Conestoga College, Doon Campus
January 11, 2030 - April 20, 2026Bachelor of Technology (B.Tech), Computer Science at Conestoga College, Doon Campus
January 11, 2030 - April 20, 2026Qualifications
Bachelor of Technology (B.Tech), Computer Science
January 11, 2030 - April 20, 2026AWS Certified Developer – Associate
January 11, 2030 - April 20, 2026Oracle Certified Professional, Java SE 8 Programmer II
January 11, 2030 - April 20, 2026Oracle Certified Associate, Java SE 8 Programmer
January 11, 2030 - April 20, 2026Professional Scrum Master I (PSM I)
January 11, 2030 - April 20, 2026Oracle Cloud Platform Application Integration 2021 Certified Specialist
January 11, 2030 - April 20, 2026AWS Certified Developer – Associate (Amazon Web Services)
January 11, 2030 - April 20, 2026Oracle Certified Professional, Java SE 8 Programmer II (Oracle)
January 11, 2030 - April 20, 2026Oracle Certified Associate, Java SE 8 Programmer (Oracle)
January 11, 2030 - April 20, 2026Professional Scrum Master I (PSM I) (Scrum.org)
January 11, 2030 - April 20, 2026Oracle Cloud Platform Application Integration 2021 Certified Specialist (Oracle)
January 11, 2030 - April 20, 2026Industry Experience
Financial Services, Software & Internet, Professional Services, Manufacturing, Consumer Goods
Skills
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