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Raj kumar saw

@rajkumarsaw

Backend Engineer at Ascendion Engineering who reduced production job failures by 30% with a fault-tolerant Kafka workflow engine.

India

Message

At Ascendion Engineering, I designed a fault-tolerant async workflow engine with Apache Kafka, reducing production job failures by 30%. I also built Redis Pub/Sub streaming across Kubernetes replicas for real-time log delivery.

On Ascendion Engineering's Agentic AI Platform, I developed hybrid search and data reconciliation systems, and integrated OpenTelemetry tracing for LLM calls and RAG retrievals. I also delivered REST APIs and secure JSON import/export pipelines.

At DCB Bank, I delivered backend modules for a digital loan origination platform, including JWT-based authentication and REST APIs. In my projects, I built a plant disease classifier that achieved 96% accuracy and a distributed product review scraper.

Experience

Work history, roles, and key accomplishments

Current

Backend Engineer (Java)

Current

Ascendion Engineering

Dec 2024 - Present (1 year 10 months)

Designed a scalable, fault-tolerant async workflow engine using Apache Kafka with retry, idempotency, and distributed tracking, reducing job failures by 30% at production scale. Built a multi-pod SSE streaming system using Redis Pub/Sub over Kafka, enabling real-time log delivery across Kubernetes replicas with zero message loss and automatic failover.

Java Spring Boot Microservices Kafka Redis PostgreSQL Elasticsearch OpenSearch OTEL Datadog Jaeger AWS Azure Docker Kubernetes GitHub Actions CI CD

Software Engineer

DCB Bank

Sep 2024 - Dec 2024 (3 months)

Delivered backend modules for SME New-to-Bank digital loan origination covering onboarding, credit assessment, and RM-driven approval workflows in a FinTech production system. Implemented JWT-based auth and RBAC securing access across RM, credit officer, and admin roles per banking compliance standards.

Java Spring Boot Spring Security JWT SQL REST APIs

Education

Degrees, certifications, and relevant coursework

Indian Institute of Technology (IIT), Dhanbad

Master of Technology, Computer Science and Engineering

2022 - 2024

Grade: 8.45/10.0

Master of Technology in Computer Science and Engineering from IIT Dhanbad, with a CGPA of 8.45/10.0.

University College of Engineering and Technology, Hazaribagh

Bachelor of Technology, Computer Science and Engineering

2018 - 2022

Grade: 8.19/10.0

Bachelor of Technology in Computer Science and Engineering from University College of Engineering and Technology, Hazaribagh, with a CGPA of 8.19/10.0.