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Point System
Point System / Matching Platform Operations & Refactoring
Operations, maintenance, and feature additions for a platform that lets users exchange points and match with each other.
Ongoing·Role: SES / Maintenance
Next.jsNode.js
Challenge
- Point transactions demand transactional consistency; double-grant or double-spend is absolutely unacceptable.
- Matching logic changes frequently from the business side and requires flexible implementation.
Solution
- Guaranteed point consistency with DB transactions + optimistic locking.
- Extracted matching logic into a rule-engine-style component so business changes can be reflected without code changes.
Technology Decisions
Why prioritize consistency
Points are effectively monetary; transaction failures directly damage customer trust. Consistency is prioritized over performance optimization.
Outcomes
Transaction Errors
0
Zero double-grant/double-spend across millions of transactions
Consistency Guarantee
DB transactions + optimistic locking
Auto-retry on conflict
Business-Rule Changes
Reflected without code changes
Matching logic abstracted as a rule engine
Team
1 of our engineers (SES)
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