Azer G

Joined KillBills as their first hire:

I contributed across the entire company stack (frontend, backend, and infrastructure) and helped shape the technical direction from day one.

Full-stack development: Delivered product features end to end, with strong test coverage.

Database migration: Pitched and led the migration from NoSQL to SQL, boosting performance and reliability.

Infrastructure optimization: Migrated from serverless to dedicated servers with autoscaling and HA, cutting costs by 80%.

Multicloud architecture: Migrated infrastructure to a multicloud setup to leverage the strengths of both providers and optimize costs.

High-throughput systems: Optimized ingestion pipelines to process millions of receipts seamlessly.

Data engineering: Designed and implemented a data lake and pipelines, enabling the company’s pivot toward a data-driven product.

Tech stack: TypeScript, MERN stack, Next.js

Developed multiple features and user flows, including perks, onboarding, and the insurance policy product.

Optimized Google Maps API calls, reducing monthly costs by 20×.

Implemented frontend analytics to track user behavior using Segment and Google Analytics.

MERN Stack

Built a GS1-compliant SaaS resolver using React.js, Node.js, and MongoDB for enterprise labeling and product traceability.

Contributed to a distributed platform for financial operations at Crédit Agricole CIB, processing millions of FPML-based files with Hadoop, Kafka, Elasticsearch, and C++, ensuring high availability and fault tolerance.

Developed a CRM system for a training center with 7 access levels, using MySQL, Express.js, and React.js, enabling controlled lead generation and optimized conversion workflows.