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Manish Dhanwal

@manishdhanwal

Backend engineer at Brevo who scaled Kafka webhook processing and cut API calls by 80%.

At Brevo, I built Go connectors for HubSpot, Klaviyo, Mailchimp, Google, and Meta. I also co-architected a Kafka-based, horizontally scalable system supporting millions of webhook events per day.

I built Kafka contact-sync batches that processed 4M+ contacts with zero message loss, and optimized workflows and containers to reduce CPU and memory use by 75%. Earlier, at Sendinblue, I built Python and Django services for newsletters, subscription forms, and transactional emails.

Experience

Work history, roles, and key accomplishments

Current

Software Engineer - Plugins & Integrations

Current

Brevo

Apr 2022 - Present (4 years 7 months)

Built Go connectors for CRM integrations, led platform architecture, and optimized infrastructure to cut API calls by 80% and CPU/memory use by 75%.

Go Kafka Kubernetes OAuth AWS Secrets Manager PostgreSQL Docker Datadog Grafana Sentry CI CD N8n Twilio NodeJS Python Claude Code Cursor MCP

Software Engineer

Sendinblue

May 2019 - Feb 2021 (1 year 9 months)

Built Python/Django backend services for newsletters, subscription forms, and transactional emails, and developed third-party integrations with marketing tools and CMS platforms.

Python Django REST APIs Third Party Integrations High Volume Delivery

Freelance Full-Stack Developer

w3origin

Nov 2017 - Jan 2019 (1 year 2 months)

Delivered 5+ production web applications using Python, Django, JavaScript, and React, owning requirements, architecture, implementation, deployment, and client communication.

Python Django JavaScript React Fullstack Development Client Communication