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Bablu Kumar

@bablukumar5

Senior Software Engineer at Zact who built the Zact Accounting Connector and integrations with QuickBooks Online, NetSuite, Sage, and Xero.

India

Message

At Zact, I architected and built the Zact Accounting Connector from scratch, designing its distributed system and accounting integrations with QuickBooks Online, NetSuite, Sage, and Xero. I also migrated Kafka infrastructure to GCP-managed Kafka for multiple microservices.

At Reddway, I built and scaled multi-tenant SaaS platforms, including Reddway and Property365, and designed backend architecture and event-driven systems. Earlier, I co-developed a dashboard platform at Digital East Gmbh and developed backend services for user reviews and digital loan applications at BankBazaar.

Experience

Work history, roles, and key accomplishments

Current

Senior Software Engineer

Current

Zact

Feb 2025 - Present (1 year 9 months)

Architected and built the Zact Accounting Connector from scratch, owning distributed system design, implementation, and reliability. Developed reliable accounting integrations with platforms including QuickBooks Online, NetSuite, Sage, and Xero.

Java Scala Python Spring Boot Kafka REST APIs OpenAPI MySQL BigQuery Keycloak Docker Kubernetes GCP BFF GenAI LLM Lang Chain LangGraph Rasa

Senior Software Engineer

Reddway

Nov 2021 - Dec 2024 (3 years 1 month)

Built and scaled multi-tenant SaaS platforms, including Reddway and Property365, from zero to one, owning architecture, development, deployment, and production operations. Designed scalable backend architecture, distributed microservices, and event-driven systems in AWS production environments.

Java Python Spring Boot fastAPI AWS TypeScript NestJS Next.js Kafka PostgreSQL MongoDB Neo4j Docker Microservices Event Driven Architecture

Software Engineer

Digital East Gmbh

Jan 2020 - Sep 2021 (1 year 8 months)

Co-developed a new dashboard platform from scratch. Built and operated cloud-native services in AWS production environments, integrating scalable backend services and distributed systems.

Java Spring Boot Microservices REST APIs Angular Go NodeJS MongoDB PostgreSQL Redis Docker

Application Developer

BankBazaar

Jul 2017 - Dec 2019 (2 years 5 months)

Developed UserReviewService for managing user reviews. Developed backend services supporting digital loan application workflows.

Java Spring Framework REST APIs MySQL Hibernate Maven

Education

Degrees, certifications, and relevant coursework

MIT University, Meghalaya

Bachelor of Technology, Computer Science

2013 - 2017

Activities and societies: Main coursework: Data Structures, Design and Analysis of Algorithms, Cloud Computing, Database, Operating Systems, Software Engineering.

Bachelor of Technology in Computer Science from MIT University, Meghalaya, from 2013 to 2017.