manifoldmarkets/manifold
Jul 2025 – Jul 2026
4 Months active
Languages Used
TypeScriptJavaScriptSQL
Technical Skills
Configuration ManagementAPI developmentNode.jsPostgreSQLfull stack developmentlocal development
Evan Daniel
PROFILE
Evan Daniel
Over four months, contributed to the manifoldmarkets/manifold repository by delivering four backend features focused on API development, database optimization, and local development workflows. Built a local-only development mode that decouples the stack from Firebase and GCP, enabling direct Supabase connections and streamlined onboarding. Enhanced the Bets API’s performance by introducing a partial PostgreSQL index to prevent timeouts on high-volume queries. Developed a position rebalancing endpoint for multi-choice markets, implementing robust mathematical modeling and unit testing in TypeScript and SQL. Improved bot recognition logic to align with API documentation, demonstrating a methodical approach to backend architecture, configuration management, and database management.
Overall Statistics
Feature vs Bugs
100%Features
Repository Contributions
4Total
Bugs
0
Commits
4
Features
4
Lines of code
1,537
Activity Months4
Your Network
97 peopleWork History
July 2026
1 Commits • 1 Features
Jul 1, 2026July 2026: Delivered Bets API performance optimization for manifold by adding a partial index to speed up open-limit order retrieval and prevent timeouts on high-volume markets. The change uses a partial index on (contract_id, created_time DESC) WHERE is_filled = false AND is_cancelled = false, mirroring the successful pattern used for contract_bets_expiring_limit_orders. This ensures fast, predictable latency for /v0/bets with any LIMIT value and reduces the load from full-history scans.
1 Commits • 1 Features
Jul 1, 2026July 2026: Delivered Bets API performance optimization for manifold by adding a partial index to speed up open-limit order retrieval and prevent timeouts on high-volume markets. The change uses a partial index on (contract_id, created_time DESC) WHERE is_filled = false AND is_cancelled = false, mirroring the successful pattern used for contract_bets_expiring_limit_orders. This ensures fast, predictable latency for /v0/bets with any LIMIT value and reduces the load from full-history scans.
July 2026
May 2026
1 Commits • 1 Features
May 1, 2026May 2026 monthly summary focused on delivering a new Position Rebalancing Endpoint for Sum-to-One Multi-Choice Markets, robust math core, and improved loan handling, with strong test coverage and documentation to enable future atomic rebalances and safer market operations.
May 2026
1 Commits • 1 Features
May 1, 2026May 2026 monthly summary focused on delivering a new Position Rebalancing Endpoint for Sum-to-One Multi-Choice Markets, robust math core, and improved loan handling, with strong test coverage and documentation to enable future atomic rebalances and safer market operations.
April 2026
1 Commits • 1 Features
Apr 1, 20262026-04 monthly summary for manifoldmarkets/manifold: Delivered a local-first development workflow by implementing Local Development LOCAL_ONLY mode, decoupling from Firebase/GCP for offline testing, and enabling direct Supabase connections. This release includes end-to-end support across backend, scheduler, and frontend, plus comprehensive local-dev tooling and documentation. The work reduces onboarding time and accelerates debugging in local environments while preserving production readiness.
1 Commits • 1 Features
Apr 1, 20262026-04 monthly summary for manifoldmarkets/manifold: Delivered a local-first development workflow by implementing Local Development LOCAL_ONLY mode, decoupling from Firebase/GCP for offline testing, and enabling direct Supabase connections. This release includes end-to-end support across backend, scheduler, and frontend, plus comprehensive local-dev tooling and documentation. The work reduces onboarding time and accelerates debugging in local environments while preserving production readiness.
April 2026
July 2025
1 Commits • 1 Features
Jul 1, 2025July 2025 monthly summary focusing on business value and technical achievements for the manifold repository. The key deliverable this month was a bot recognition enhancement that aligns with API documentation and improves UI accuracy and market scoring logic.
July 2025
1 Commits • 1 Features
Jul 1, 2025July 2025 monthly summary focusing on business value and technical achievements for the manifold repository. The key deliverable this month was a bot recognition enhancement that aligns with API documentation and improves UI accuracy and market scoring logic.
Activity
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Quality Metrics
Correctness95.0%
Maintainability90.0%
Architecture95.0%
Performance90.0%
AI Usage50.0%
Skills & Technologies
Programming Languages
JavaScriptSQLTypeScript
Technical Skills
API developmentBackendConfiguration ManagementDatabase OptimizationNode.jsPostgreSQLSQLbackend developmentdatabase managementfull stack developmentlocal developmentunit testing
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