Senior Full-Stack Developer, Founder of e10

Founder of e10 Infotech, a Mumbai software company I started in 2011. Over 15 years we have shipped software for clients across 25+ countries. Today I work as a hands-on solo builder with AI-assisted tooling, running about 20 production projects in parallel, so you get a senior engineer who scopes, designs, builds, deploys and supports the whole thing without agency overhead. What I build Full-stack web applications, admin panels and internal tools on PostgreSQL, deployed on infrastructure I run myself (AWS, Docker, Coolify, Cloudflare). Authentication and SSO (OIDC, PKCE), payments, document generation and e-signature flows, and integrations with third-party APIs such as Google Maps and booking platforms. Desktop tooling in Rust and Tauri. Programmatic SEO sites and content platforms. Android apps with admin backends. How I work Fixed-price, fixed-scope sprints, usually two weeks, with a written scope agreed before any work starts. Clear milestones, working software at each step and no surprises on the invoice. Most of my clients have no internal tech team and need one person who owns the outcome end to end, from the first call to the production deploy. Outcomes I have delivered - Migrated 20 production apps from Vercel and Neon to self-hosted AWS, cutting hosting costs with zero downtime for any service - Built a price optimiser for a hotel booking admin panel - Built a customer portal for a UK heating company and scoped a route-aware booking and allocation engine for its field advisors - Built and run TinTorch, my own product suite: CRM, CMS, forms, docs, e-signature and an SSO provider, all in production I have worked with UK trades businesses (heating, plumbing, electrical, solar), hospitality, retail, interior design firms and non-profits. I also offer a fixed-price Production Readiness Review if you need an honest look at an existing app before launch or scale. Based in Mumbai (IST) with regular overlap for UK and US hours.