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bhardwaj thummar

@bhardwajthummar

Backend engineer at ScalerByte and Intersoft who scaled payment settlement and built an ETL platform processing 100M+ records.

India

Message

At Intersoft, I designed and built a config-driven, plugin-based ETL architecture in Airflow that became the standard across three teams. It supports 15+ pipelines processing 100M+ records and 500GB+ per day, with more than 100 jobs migrated to production.

At ScalerByte, I worked on a financial settlement platform processing 300M+ monthly transactions across Stripe, Chase, AIB, and Valitor integrations. I co-designed its Redis-based idempotency and crash-recovery layer, and carried on-call ownership from deployment through incident response and scaling.

I also built a reusable Go gRPC framework adopted across 20+ microservices, and developed AI-powered applications using LangChain, LangGraph, RAG, and MCP. My personal and freelance projects include a production e-commerce backend and a property-listing aggregation platform.

Experience

Work history, roles, and key accomplishments

Current

Data Engineer

Current

Intersoft

Mar 2026 - Present (6 months)

Designed and built a config-driven, plugin-based ETL v2 architecture in Airflow, replacing Kubernetes CronJobs, Control-M, and Drools-based scheduling. Decommissioned Control-M and Drools licensing, saving costs and reducing pipeline execution time by approximately 30%.

Airflow Kubernetes Flask fastAPI Azure GCP Terraform MySQL Python

Freelance Backend Developer

E-Commerce Platform

Nov 2025 - Feb 2026 (3 months)

Built and shipped a production e-commerce backend solo over a 4-month freelance engagement, using FastAPI and PostgreSQL for transactional data and S3 for object storage. Integrated Elasticsearch for product search, filtering, and autocomplete across a 10K-product catalog.

Python fastAPI PostgreSQL Elasticsearch Docker AWS RDS S3 Hetzner

Software Engineer, Backend

ScalerByte

Feb 2021 - Feb 2026 (5 years)

Reviewed pull requests for junior engineers and built Claude Code-based tooling for compliance checks. Provisioned Azure/GCP PaaS infrastructure and IAM access across client engagements.

Freelance Developer

Property Listing Aggregation Platform

Deployed and managed a self-hosted ScyllaDB cluster on AWS using Terraform-based Infrastructure as Code, powering a property-listing tool that scans and aggregates the latest listings across multiple external sources.

Scylla Terraform AWS