Open to opportunities

Suman Narayan Jha

@sumannarayanjha

I build distributed backend systems, event-driven pipelines, and cloud-native platforms that improve reliability and performance.

India

Message

What I'm looking for

I'm looking to build reliable distributed systems, real-time data platforms, cloud-native infrastructure, and AI-powered developer tooling with meaningful performance and operational impact.

I've built distributed backend systems and large-scale data platforms at Bigbasket and Subex, using Java, Python, Kafka, Spark, and Kubernetes.

At Bigbasket, I built a LangChain, LangGraph, and FastAPI ChatOps bot integrating 10+ internal services, reducing on-call diagnosis from hours to minutes. I also designed a zero-downtime migration pipeline across 5+ Java and Python microservices and improved read latency by decoupling a CPU-intensive rule engine into a Kafka consumer service.

At Subex, I developed Saga-based orchestration for distributed data pipelines, implemented 2-factor authentication with Keycloak and Spring Security, and built centralized Elasticsearch logging for 10+ microservices. I also improved Trino query fault tolerance to 99% uptime and delivered a Participation Record revamp that achieved 5x faster case generation.

I'm motivated by reliable event-driven systems, real-time data processing, cloud-native infrastructure, and practical AI-powered developer tooling.

Experience

Work history, roles, and key accomplishments

Current

Senior Software Engineer

Current

Bigbasket via Recro

Dec 2025 - Present (8 months)

Built a LangChain + LangGraph + FastAPI ChatOps bot integrating 10+ internal services via MCP-over-SSE, reducing on-call diagnosis time from hours to minutes and optimizing token usage to reduce LLM costs. Developed a zero-downtime migration of millions of records across 5+ Java/Python microservices by designing a clone → cut-over → backfill pipeline with batched upserts, bounded concurrency, idem

Java Python Kafka Kubernetes Helm KEDA Lang Chain LangGraph fastAPI MCP SSE AIOHTTP Microservices Distributed Systems Event Driven Architecture Caching Bulk Lookups Retries

Senior Software Engineer

Subex Ltd.

Oct 2023 - Dec 2025 (2 years 2 months)

Developed event-driven orchestration using the Saga pattern to manage distributed data pipelines with centralized monitoring and recovery mechanisms. Integrated Keycloak with Spring Security to implement 2-factor authentication and group-based access role management.

Java Spring Boot Spring Security Keycloak Kafka Elasticsearch Trino Apache Spark Saga Microservices Distributed Systems Event Driven Architecture Monitoring Recovery

Software Engineer

Subex Ltd.

Jun 2022 - Sep 2023 (1 year 3 months)

Developed RESTful microservices using Spring Boot and Hibernate for scalable backend systems. Implemented Spark Structured Streaming checkpointing for fault-tolerant real-time rule processing.

Java Spring Boot Hibernate Apache Spark Kafka Microservices Spark Structured Streaming ETL Distributed Systems

Education

Degrees, certifications, and relevant coursework

National Institute of Technology Patna

Bachelor of Technology, Computer Science

2018 - 2022

Grade: 8.33 CGPA

Pursued a Bachelor of Technology in Computer Science, achieving a CGPA of 8.33. Coursework included Operating Systems, Data Structures, Analysis of Algorithms, Machine Learning, Computer Networks, Databases, and Distributed Systems.