Project Description
I’m looking for an experienced blockchain developer to review, debug, and fully optimize an existing codebase involving advanced DeFi mechanisms, including flash loans and a custom “flash bets” system integrated with ultra-fast, short-resolution markets.
Project Context
This system is designed to interact with instant-resolution betting markets and prediction markets, where outcomes resolve in seconds. Execution speed, atomicity, and reliability are critical.
Target use cases include:
In-play “instant” sports markets (e.g., next point, next play outcomes)
Flash betting markets (micro-events resolving within seconds)
Prediction market “resolution sniping” opportunities
Scope of Work
Review the entire codebase for bugs, vulnerabilities, and inefficiencies
Ensure all core features function correctly, especially:
Flash loan execution (borrow, execute strategy, and repay within one transaction)
Flash bets execution with strict requirement that bets are placed and resolved within the same transaction (atomic execution)
Implement and/or refine flash loan sizing logic based on wallet balance, including:
Analyze the executing wallet/contract balance prior to initiating a transaction
Use that balance context to determine and request the maximum viable flash loan size
Ensure sizing accounts for fees, slippage, gas costs, and guaranteed repayment
Ensure integration with deep liquidity providers and pools, including:
Connecting to major flash loan providers / liquidity sources
Routing transactions through pools with sufficient depth to support larger loan sizes
Prioritizing liquidity sources that minimize slippage and maximize execution success
Guarantee that:
Flash loan capital is sourced externally from liquidity pools (not from personal wallet funds beyond gas/fees)
All borrowed funds are repaid within the same transaction
The strategy does not expose personal capital to risk beyond transaction costs
Guarantee that flash bets:
Trigger immediately upon execution
Execute and resolve within the same transaction
Do not rely on delayed callbacks or multi-transaction flows
Implement or refine logic to support:
In-play instant markets (next event resolution within seconds)
Flash markets (micro-bets resolving within a short sequence of plays)
Prediction market execution timing (pre-resolution positioning)
Optimize for:
Execution speed and atomicity
Gas efficiency
Reliability under real-world conditions
Identify and fix:
Edge cases related to timing and settlement
Oracle risks or stale data issues
MEV vulnerabilities (frontrunning, sandwiching, etc.)
Provide:
Clear documentation of fixes and improvements
Testing support (local + mainnet fork) to validate all flows
Critical Requirements
Flash loans and flash bets must execute atomically in a single transaction
Flash bets must execute immediately and resolve without delay
Flash loan sizing must:
Be dynamically determined by analyzing the wallet/contract balance
Maximize loan size while ensuring safe and guaranteed repayment
System must:
Be connected to deep liquidity pools/providers
Source capital externally (not rely on personal funds for execution capital)
Minimize slippage and ensure consistent execution even at larger sizes
The system must be robust in environments where:
Market states change within seconds
Execution timing directly impacts profitability
Relevant Market Mechanics to Support
In-Play Instant Markets
Next point / next play / next action betting
Ultra-short resolution windows
Flash Markets
Micro-outcomes (e.g., drive results, single play outcomes)
Immediate settlement after a short sequence
Prediction Market Sniping
Executing trades just before oracle resolution
Capturing near-certain outcomes prior to settlement
Requirements
Strong experience with Solidity and smart contract development
Proven experience with flash loan integrations (Aave or similar)
Experience working with liquidity pools and routing strategies
Deep understanding of:
Atomic transactions
MEV / arbitrage strategies
Oracle systems and prediction markets
Experience auditing and securing DeFi systems
Ability to rigorously test time-sensitive execution flows
Deliverables
Fully working, tested, and optimized code
Verified atomic execution of flash loans + flash bets
Flash loan sizing correctly based on wallet balance
Confirmed integration with deep liquidity sources
Summary of issues found and fixes applied
Recommendations for further improvements
To Apply
Please include:
Relevant experience with DeFi, arbitrage bots, or prediction markets
Examples of similar systems you’ve worked on
Your proposed approach, timeline, and rate
This project requires deep technical expertise in atomic execution, liquidity sourcing, and real-time market interaction. I’m looking for an experienced blockchain developer to review, debug, and fully optimize an existing codebase involving advanced DeFi mechanisms, including flash loans and a custom “flash bets” system integrated with ultra-fast, short-resolution markets.
Project Context
This system is designed to interact with instant-resolution betting markets and prediction markets, where outcomes resolve in seconds. Execution speed, atomicity, and reliability are critical.
Target use cases include:
In-play “instant” sports markets (e.g., next point, next play outcomes)
Flash betting markets (micro-events resolving within seconds)
Prediction market “resolution sniping” opportunities
Scope of Work
Review the entire codebase for bugs, vulnerabilities, and inefficiencies
Ensure all core features function correctly, especially:
Flash loan execution (borrow, execute strategy, and repay within one transaction)
Flash bets execution with strict requirement that bets are placed and resolved within the same transaction (atomic execution)
Implement and/or refine flash loan sizing logic based on wallet balance, including:
Analyze the executing wallet/contract balance prior to initiating a transaction
Use that balance context to determine and request the maximum viable flash loan size
Ensure sizing accounts for fees, slippage, gas costs, and guaranteed repayment
Ensure integration with deep liquidity providers and pools, including:
Connecting to major flash loan providers / liquidity sources
Routing transactions through pools with sufficient depth to support larger loan sizes
Prioritizing liquidity sources that minimize slippage and maximize execution success
Guarantee that:
Flash loan capital is sourced externally from liquidity pools (not from personal wallet funds beyond gas/fees)
All borrowed funds are repaid within the same transaction
The strategy does not expose personal capital to risk beyond transaction costs
Guarantee that flash bets:
Trigger immediately upon execution
Execute and resolve within the same transaction
Do not rely on delayed callbacks or multi-transaction flows
Implement or refine logic to support:
In-play instant markets (next event resolution within seconds)
Flash markets (micro-bets resolving within a short sequence of plays)
Prediction market execution timing (pre-resolution positioning)
Optimize for:
Execution speed and atomicity
Gas efficiency
Reliability under real-world conditions
Identify and fix:
Edge cases related to timing and settlement
Oracle risks or stale data issues
MEV vulnerabilities (frontrunning, sandwiching, etc.)
Provide:
Clear documentation of fixes and improvements
Testing support (local + mainnet fork) to validate all flows
Critical Requirements
Flash loans and flash bets must execute atomically in a single transaction
Flash bets must execute immediately and resolve without delay
Flash loan sizing must:
Be dynamically determined by analyzing the wallet/contract balance
Maximize loan size while ensuring safe and guaranteed repayment
System must:
Be connected to deep liquidity pools/providers
Source capital externally (not rely on personal funds for execution capital)
Minimize slippage and ensure consistent execution even at larger sizes
The system must be robust in environments where:
Market states change within seconds
Execution timing directly impacts profitability
Relevant Market Mechanics to Support
In-Play Instant Markets
Next point / next play / next action betting
Ultra-short resolution windows
Flash Markets
Micro-outcomes (e.g., drive results, single play outcomes)
Immediate settlement after a short sequence
Prediction Market Sniping
Executing trades just before oracle resolution
Capturing near-certain outcomes prior to settlement
Requirements
Strong experience with Solidity and smart contract development
Proven experience with flash loan integrations (Aave or similar)
Experience working with liquidity pools and routing strategies
Deep understanding of:
Atomic transactions
MEV / arbitrage strategies
Oracle systems and prediction markets
Experience auditing and securing DeFi systems
Ability to rigorously test time-sensitive execution flows
Deliverables
Fully working, tested, and optimized code
Verified atomic execution of flash loans + flash bets
Flash loan sizing correctly based on wallet balance
Confirmed integration with deep liquidity sources
Summary of issues found and fixes applied
Recommendations for further improvements
To Apply
Please include:
Relevant experience with DeFi, arbitrage bots, or prediction markets
Examples of similar systems you’ve worked on
Your proposed approach, timeline, and rate
This project requires deep technical expertise in atomic execution, liquidity sourcing, and real-time market interaction.