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Alex Ababu
Mid-level AI Engineer and Software Engineer specializing in LLMs and FinTech
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About
Full-stack and AI systems engineer who has built across ride-hailing, fintech, higher-ed support, and legal-tech workflows. Stands out for shipping production RAG/agent systems with careful grounding and human fallback, while also delivering hard backend architecture wins like geospatial dispatch scaling and cutting fintech payment latency from 60 seconds to 2 seconds.
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Key Strengths
- End-to-end full-stack ownership across web, mobile, backend, and infrastructure
- Scalable geospatial dispatch architecture for ride-hailing
- Strong TypeScript systems design with shared typed contracts
- Production AI/RAG delivery in user-facing Slack workflows
- Pragmatic human-in-the-loop AI decision-making for trust-sensitive use cases
- LLM architecture for legal document retrieval with citation grounding
- Agent evaluation and regression analysis using structured test cases and traces
- Performance optimization under real-world scale constraints
- Concurrency and race-condition handling in transactional systems
- Early-stage technical leadership and alignment in ambiguous environments
- Platform consolidation across fragmented fintech integrations
- Reduced payment authorization latency from 60s to 2s
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