DrHouse
Typed OpenAPI SDK, Figma MCP design-to-code workflow, page-load performance fix, and Vite/TypeScript migration.
ReactTypeScriptViteOpenAPIFigma MCP
Available for work
Dennis Kumar
Product Engineer · Full-Stack TypeScript · AI-Native
Full-stack engineer with 8+ years shipping products end-to-end — architecture through production. React, Node.js, and AI-assisted development. Based in Tallinn, Estonia.
About
I'm a full-stack engineer with 8+ years taking complete products from architecture through production — not just owning a component inside someone else's system. I've designed and shipped a multi-country SaaS platform end-to-end at Morek IT, owned a backend service from concept through a ~70% measured business impact at Ampwise, and diagnosed real production issues under load at Yolo Group.
AI-assisted development is how I already work: Cursor daily with a structured workflow (I set the architecture and constraints, let the agent execute, then review everything before it ships), plus MCP servers like Figma MCP and Supabase MCP in real production work. Comfortable across frontend, backend, databases, deployment, and production reliability.
Commercial Experience
Yolo Group
Fixed a real-money sync bug (~30% of edge-case sessions), shipped casino clients for 5,000+ concurrent users, and led design-system work across 10 developers.
ReactTypeScriptRedux ToolkitWebSockets
Ampwise
Owned an AI order-parsing backend end-to-end; cut procurement processing time by ~70%.
ReactNext.jsNode.jsPostgreSQLDocker
Morek IT
Designed and shipped a multi-country SaaS platform solo — Next.js BFF, Node.js, PostgreSQL, Azure across 7 country domains.
Next.jsNode.jsPostgreSQLAzure
ERPLY
Built the Invoices module from scratch as an independently deployable micro-frontend.
ReactTypeScriptMicro-frontends
Based in Tallinn, Estonia. Open to Product Engineer and senior full-stack roles locally or remote.
Projects
Things I've built outside of work.
RoomFull
activeVenue-scoped social game launching first in Tallinn. Scan a table code, play short group games with everyone in the room, then meet people based on how they answered — not what they look like. No algorithm, no photo.
ReactTypeScriptViteSupabaseRealtimeEdge Functions
Visit site →
SlickBills
activeConsumer fintech app for request-based invoicing, integrating Monerium (EU stablecoin settlement) and PSD2 sandbox APIs from SEB and LHV. Built with Supabase MCP as part of an AI-assisted development workflow.
FlutterSupabaseEdge FunctionsNode.jsReactMoneriumPSD2
Visit site →
Alertly
close-testingHyperlocal safety alert platform, taken 0-to-1 into Play Store closed testing. PostGIS proximity queries, Redis/BullMQ fan-out, and Firebase Cloud Messaging for delivery.
FlutterFastifySupabasePostGISRedisBullMQFCM
Visit site →
Klubiq
close-testingCommunity and membership platform for managing clubs, events, and member engagement in one place.
Next.jsTypeScriptSupabase
Visit site →
CourtSync
activeTournament management app for racquet sports with real-time match tracking, bracket management and live score updates.
FlutterSupabaseBLoC
Visit site →
SnapStake
close-testingSocial challenge and peer-to-peer betting app with a moment-reveal mechanic. Users stake on personal challenges proven via in-app camera.
FlutterSupabase
Visit site →Viblix
archivedHandcraft marketplace connecting indie artists with buyers. Supports artist storefronts and curated product discovery — no dropshipping, no POD.
Next.jsSupabaseTypeScript
Radiun
archivedMusic discovery app using a swipe-based format for underground artists, with 15 - 30 second samples linked to artist monetization platforms.
FlutterFirebase
Skills
Technologies and tools I work with.
Full-Stack
ReactTypeScriptNext.jsNode.jsExpressFastifyPostgreSQLRESTGraphQL
Architecture & Ownership
System designAzureAWSSupabaseDockerCI/CDProduction reliability
AI-Native Development
CursorFigma MCPSupabase MCPAI-assisted implementationAI-assisted review
Leadership
Technical directionADRsCode reviewMentoringHiring
Testing & Quality
JestVitestReact Testing LibraryCypressPlaywrightPercyChromatic
Let's talk
Open to Product Engineer and senior full-stack TypeScript roles in Tallinn or remote. If you're building something serious, reach out.