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Oleksandr Zalizniak
Mercor
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System Design
Delivery Framework
Non-Functional Requirements
Core Concepts
Terminology
Event-Driven Architecture
References
Concurrency · races
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Go · backend & infra
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OpenTelemetry · observability
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Technologies
Cassandra · wide-column
ClickHouse · columnar OLAP
Postgres Internals
Object storage · S3 / MinIO
Kubernetes & Orchestration
Kafka · event streaming
Queues · jobs & tasks
Temporal · durable execution
Design Problems
Popular System Design Topic
Design Twitter / X (Feed)
AI Playbook
About the Playbook
AI Engineering Terms
Assistant → actor · Autonomy
Non-deterministic eval · Testing
Inference cost & latency · Cost
No-API integration · Integration
Multi-tenant retrieval · Knowledge
Durable workflows · Orchestration
Context degradation · Orchestration
Domain rules as code · Rules
Own vs. rent the model · Models
How Guardrails Work
Prompting Techniques
Agentic Production Challenges — a cross-teardown review
Opportunities
About the Opportunities
Probate & estate settlement
Watchlist
Commercial property-tax appeals
Unclaimed property / escheatment
Energy interconnection & permitting
UCC lien perfection & monitoring
Government grants & permitting
Insurance subrogation recovery
Government RFP discovery & bid response
Title search & curative
Tax resolution / IRS-notice response
Customs brokerage & trade compliance
Workers-comp & disability claims
Pharma regulatory submission (eCTD)
M&A due-diligence deal rooms
Mortgage / loan-doc closing
Commercial lease execution
Construction change-orders & lien waivers
Procurement intake & approval routing
Insurance brokerage / policy binding
Healthcare prior-authorization & intake
Immigration / visa case assembly
Clinical-trial consent & regulatory docs
Estate planning / wills & trusts
Vertical back-office ops agent
Durable-agent / AI-action-audit infra
Contract lifecycle management
Accounts payable / invoice-to-pay
HR / employee-lifecycle paperwork
Compliance attestation & audit
Remote online notarization
Teardowns
About
Basis · Accounting
Pylon · Lending
Rilla · Field sales
Traba · Staffing
Pallet · Logistics
Antimetal · Production eng
Glean · Enterprise search
Momentic · Test automation
Confido · CPG fintech
Amperos · Healthcare RCM
Prophet · Agentic SOC
Gradient Labs · Customer ops
SightlineOS · Supply chain
FurtherAI · Insurance
Comp AI · Compliance
Harvey · Legal
Avallon · Insurance claims
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Harper · Insurance brokerage
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Norm Ai · Regulatory compliance
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Sierra · Customer support
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Decagon · Customer support
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Mercor · Recruiting
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Hippocratic AI · Healthcare
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QA Wolf · Test automation
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Ranger · Test automation
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Spur · Test automation
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Chakra Labs · AI infra
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Notes
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Domain & Vertical Terms
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Coding Agents & Model Endpoints
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Mercor
AI recruiting agents that source, screen, and evaluate candidate qualifications and engagement.