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Arindam Upadhyay

@arindamupadhyay

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I build backend platforms and self-hosted AI infrastructure that improve reliability, latency, and cloud costs.

India

Message

What I'm looking for

I'm looking to build high-impact backend platforms and AI infrastructure, especially work involving reliable production systems, self-hosted inference, observability, and meaningful cost or performance improvements.

At Gothia Digital Solutions, I build backend systems and production AI infrastructure for a multi-tenant platform. I migrated email workflows to .NET, built token-based RBAC authentication for three client applications, and led live Entity Framework modernization without disrupting consuming services.

I moved production AI workloads from RunPod to an on-prem FastAPI and vLLM platform serving Qwen models, scaling adoption from 5 to 297 customers. The stack handles about 193K requests per month and processes 79% of roughly 50K document pages monthly while reducing cloud AI spend by approximately $2.7–5K per month.

I also co-founded Sizzlr, where I built a campus food-ordering MVP with Flutter, Node.js, MongoDB, Google Cloud Run, and CI/CD. I enjoy turning complex platform, reliability, and AI-serving problems into practical systems people can use.

Experience

Work history, roles, and key accomplishments

Current

Software Engineer

Current

Gothia Digital Solutions AB

Jul 2024 - Present (2 years 2 months)

Migrated email workflows to .NET with dual-AI classification, handling ~4,500 customer emails/month. Led Entity Framework migration and architected token-based auth with RBAC for multi-tenant platform.