Kumar Shreyash
Senior Software Engineer
Bengaluru, Karnataka, India
Backend engineer with ~11 years of experience building scalable distributed systems across fintech, healthtech, and telecom domains. Expert in Java, Spring Boot, Node.js, and event-driven architectures with strong experience in microservices, Apache Camel, Kafka, and cloud-native systems. True believer in being agile and building robust products with clean, clear code.
Skills & Technologies
Specialized in enterprise backend and integration solutions
Experience
Professional journey
Senior Associate Technology
Publicis Sapient
Led backend development for a large-scale banking onboarding platform, driving end-to-end ownership, scalable event-driven architectures, and production-grade delivery.
- •Led backend development for a large-scale banking onboarding platform (Lloyds Banking Group)
- •Designed and delivered 20+ APIs supporting customer onboarding journeys
- •Drove Kafka eventing strategy across 140+ events enabling a scalable architecture
- •Architected a reusable retrigger framework, reducing delivery timelines from weeks to days
- •Led migration of 50+ APIs to Azure APIM with zero regression
- •Improved production stability through observability, logging, and issue resolution; mentored engineers
Platform Software Engineer
GE Healthcare
Optimized platform microservices and infrastructure for reliability, performance, and monitoring.
- •Optimized microservices by migrating to Undertow, reducing memory footprint by ~50%
- •Worked on Kubernetes infrastructure including rook-ceph storage and monitoring with Prometheus
- •Implemented performance testing and tuning using JMeter
- •Built APIs for device management and improved system efficiency
Senior Software Engineer
Tech Mahindra
Migrated legacy integration systems to modern microservices and delivered high-throughput telecom integrations.
- •Migrated legacy IBM integration systems to microservices using Spring Boot and Apache Camel
- •Developed high-throughput APIs and implemented caching strategies
- •Worked on large-scale telecom integrations with multiple external systems
Software Engineer
Cognizant
Built enterprise integration solutions and contributed to a Center of Excellence for IoT-based solutions.
- •Built enterprise integration solutions using Apache Camel and AWS services
- •Implemented messaging systems and retry mechanisms improving resilience
- •Incorporated in the COE team to deliver IoT-based solutions to clients
Projects
Selected works and contributions
Core backend contributor for a large-scale banking onboarding transformation, delivering 20+ APIs and a Kafka eventing strategy across 140+ events to reduce onboarding timelines significantly.
Delivered hexagonal architecture-based services and integrated ADDA systems in rapid timelines for a digital banking platform.
Built a GraphQL server and CI/CD pipelines using Apollo and GitLab to enable rapid, scalable product delivery.