Khalil Bohner

I’m a full-stack software engineer with 5 years of experience building ERPs and B2B SaaS products using TypeScript, Node.js, NestJS, React, and PostgreSQL (plus MongoDB where it fits). I specialize in backend performance, reliability, and cost optimization—and I like proving improvements with measurable outcomes.

At Mayani, I help ship an AI-powered sports management SaaS with booking control, tournaments, student management, and 24/7 customer service. I grew MRR by ~$1,000 per customer by building a Split Payment system with the Mercado Pago API, and I cut latency by 95% across 10+ endpoints by offloading side effects to asynchronous queues using Redis and BullMQ.

I focus heavily on database and performance engineering. I reduced analytical query execution time by 74% in PostgreSQL by designing dedicated composite and partial indexes, and I improved TTFB by 90% and LCP by 65% using aggressive five-layer caching in Next.js—backed by 100% positive user feedback.

Previously at IXCSoft, I built and maintained a messaging pipeline processing 3B+ messages annually, scaling with MongoDB and Kafka behind an AWS API Gateway. I retained $144,000 in ARR and reduced support tickets by 14% by fixing 150+ critical bugs and achieving 100% back-end test coverage through pair programming, while also cutting cloud database costs by 50% via MongoDB Atlas optimization and historical archiving.