Senior product engineer – backend

At Senti Sum, we’re building the AI-native Voice Of Customer platform, helping top consumer brands understand why customers churn and what to do about it. We turn noisy support tickets, reviews, chats, and surveys into clear retention signals.

As a Senior Backend Product Engineer , you’ll play a pivotal role in scaling the systems behind that intelligence, working across data pipelines, event-driven architecture, and product logic to deliver real outcomes. You won’t just build APIs, you’ll help shape features that drive revenue, retention, and product excellence.

What you’ll do

Own and evolve core backend systems, from data ingestion to product logic

Design scalable, event-driven services that power real-time insights

Work closely with Product, AI, and Frontend to bring new features to life

Help simplify architecture, reduce tech debt, and improve performance

Contribute to key engineering decisions and mentor where needed

You might be a fit if…

You’ve built and scaled backend systems in a product-led company

You have 4-8 years of experience, primarily in product tech companies

You care about impact — and think in outcomes, not just endpoints

You’re comfortable working across distributed systems and async architectures

Bonus : You’ve worked with feedback data, AI / ML, or analytics-heavy platforms

Our stack

Languages : Java, Python

Infra : Kubernetes, Kafka, AWS

Search & Storage : Elasticsearch, Postgre SQL, S3

Why join us

Work on a product that drives real business impact for customers

Small, senior team → high trust, high ownership, no fluff

Bootstrapped, profitable, and building for the long term

Opportunity to shape the future of AI-native customer intelligence

Salary : 25 lac - 40 lac + bonus + ESOPS