Shan Kulkarni

GrowthDay · REMOTE

• Led mobile and web engineering for a 400K-user platform, owning core product systems from spec to production.
• Shipped live coaching at 10K+ concurrent viewers, the Brendon AI coaching avatar with RAG growth plans, and a Stripe + Apple/Google Pay payments stack that lifted conversion 9%.
• Held crash rate at 0.0001% across iOS and Android. Built an internal AI agent that triages crashes from Crashlytics and Datadog and opens fix PRs automatically.
• Hired and led the mobile team. Set engineering standards and aligned delivery with product and exec roadmap.

Appointy · BHOPAL, IN

• Built scheduling infrastructure serving 1M+ users with enterprise deployments to Google and Telefónica.
• Led SaaStack, the framework powering Appointy’s SaaS platform. Cut page load times from 15s to under 1s and new-project setup time by 80%.
• Managed a team of 10 and led a 5-person client delivery team. Mentored engineers, set code review standards, and drove architecture decisions across backend, frontend, and mobile.
• Designed and built Telefónica’s conference scheduling system with Cisco CMS/TMS, LDAP, and SSO, working directly with their Madrid team.
• Built developer tooling that cut feature development time by 50% (annotation-based code generation) and powered the 80% setup-time win (CLI scaffolding for Go services using Relay and Protobuf).

Toptal · Selected projects · VERIFIED EXPERT

• House of Manifestation (Aberrant Nature LLC): rebuilt the platform end-to-end in 3 months across web, iOS, and Android, replacing fragmented Kajabi/Shopify systems. Launched to ~500 members at a 5.0★ iOS rating.
• Hybrid Poker: shipped an AI poker trainer that personalizes training paths to each user’s skill level using RAG (ChatGPT + Claude) on a serverless AWS stack. Stripe subscriptions and Discord auto-provisioning live in production.
• Speak To Freedom: took a Lovable prototype to a production multi-tenant CRM for agencies. Eliminated manual setup at scale and enabled reliable email delivery across all client accounts (millions-record contact DB, campaign engine, per-client domain provisioning).
• Aicadium (Temasek): shipped an AI cost-prediction dashboard for an enterprise paper manufacturer, giving operators accurate per-customer pricing in production.