HomeCase Study
Arbspark
On November 25, 2025, I received a DM on Twitter from Dinkar Jain, who was building a product in the Polymarket/Kalshi space and needed a frontend developer. He initially proposed a 2–4 month engagement with a monthly compensation of ₹40,000 (around $460). However, due to the client’s need for rapid validation, the MVP was expected within an accelerated 30–45 day timeframe.
Core Stack Frontend
NextJsTailwind CSSTypescriptShadcnZustandThirdwebRechartsFramer Motion
Core platform goals
- Decentralized prediction markets with binary and multi-outcome markets
- Wallet-based user interactions
- Oracle-driven market settlements
- Separate flows for users, admins, and market makers
Key Frontend Screens
Explore Markets (Homepage)
- Display active prediction markets
- Search and category-based filtering
- Market cards showing title, outcomes, volume, and status
Market Detail Page
- Market question and description
- Outcome selection with odds
- Prediction input (placing trades)
- Comment/discussion section
- Visual indicators for liquidity and participation
Portfolio Page
- Active positions with bet details
- Past market participation and results
- Performance visualization (portfolio graph)
User Profile
- User information (username, avatar, wallet)
- Trading history and earnings
- Unclaimed rewards with redeem action
- Badges and milestone-based achievements
Leaderboards
- Global ranking of top participants
- Multiple leaderboard categories including Top Winners, Top Losers, Top Creators, and Top Creator Volume
Admin & Market Maker Interfaces
Admin Dashboard
- Market creation tools (title, outcomes, end time, description)
- Oracle monitoring and manual settlement override
- Market resolution controls (including unresolvable cases)
- Historical market records and admin action logs
Market Maker Dashboard
- Market submission workflow
- Visibility into market approval status and feedback
- Liquidity tracking with visual indicators
- Refund triggers if liquidity thresholds were not met
- History of submitted markets and outcomes
Early Figma Designs
Market Detail Page
Thoughts
Honestly, this project pushed me out of my comfort zone. It was the first time I worked on a large product with a strict deadline, Despite the challenges, the process was genuinely enjoyable.