Looking for a job

Pawan Singh

@pstp126

Senior Backend Engineer and independent contractor building high-traffic AdTech systems, including RT bidding handling millions of daily requests.

India

Message

What I'm looking for

I'm seeking direct independent-contractor engagements with US or European companies, working with client entities without staffing intermediaries. I'm available during EST/PST business hours.

As a Senior Independent Backend Contractor, I've delivered backend systems for AdTech, Healthcare, SaaS, and AI/ML product companies. My work includes real-time AdTech bidding and transcoding modules handling millions of requests daily.

For healthcare and insurance projects, I built ETL pipelines processing millions of claims and records, and automated insurer onboarding workflows. I also designed a multi-tenant user management system with RBAC and improved API response times through query optimisation and caching.

I've integrated LLM and AI/ML models into production, including a Go code-generation pipeline with multi-model benchmarking. I work as a direct independent contractor with US and European entities and am available during EST/PST business hours.

Experience

Work history, roles, and key accomplishments

Current

Senior Independent Backend Contractor

Current

Remote

Jan 2012 - Present (14 years 9 months)

Architected and delivered backend systems for AdTech, Healthcare, and SaaS platforms. Led Python migrations, designed microservices on AWS, and integrated LLM/AI models into production.