Looking for a job

Rahul Lanjewar

@rahullanjewar

Software Development Engineer II at Delightree, building Astra’s five-service Python architecture and AI workflows for 285 brands.

India

Message

What I'm looking for

I’m looking for a backend or platform engineering role where I can take ownership of scalable systems, distributed architecture, and AI-enabled products. I value strong engineering practices, meaningful technical challenges, and teams where engineers have a real say in design and product decisions.

At Delightree, I led Astra’s five-service Python architecture on AWS Lambda, using SQS, idempotency, retries, and dead-letter queues. I also built Smart Inbox, a 10-node LangGraph workflow that processes signals and generates AI notifications.

I built a six-tier LLM evaluation framework with 500+ golden scenarios and 300+ tests, achieving a 98% regression pass rate. I also created a BigQuery analytics platform with eight ETL pipelines over MongoDB documents to power customer-usage metrics.

At Vizmo, I led a four-engineer backend team and owned architecture for workplace products. I built a Temporal platform for multi-level approvals and modernized a Firebase monolith into Node.js/TypeScript and MongoDB microservices; I also contributed to parse-server, whatsapp-api-js, and CSSOM.

Experience

Work history, roles, and key accomplishments

Current

Software Development Engineer II

Current

Delightree

Feb 2026 - Present (8 months)

Led Astra's five-service Python architecture on AWS Lambda with SQS, idempotency, retries, and DLQs, supporting 285 brands across 8,126 locations. Built Smart Inbox as a 10-node LangGraph workflow processing ~2M signals and generating ~700K AI notifications monthly.

Python AWS Lambda Amazon SQS LangGraph BigQuery MongoDB ETL LLM Evaluation NodeJS

Software Engineer

Vizmo

Feb 2022 - Jan 2026 (3 years 11 months)

Led a four-engineer backend team, mentoring engineers and owning architecture for workplace products serving 130+ clients across 400+ locations and 5M+ visitor check-ins. Built a Temporal platform for multi-level approvals and modernized a Firebase monolith into Node.js/TypeScript and MongoDB microservices.