Browse Skills
1306+ expert skills across 6 domains. Scored on 6 quality dimensions.
Funnel Analysis Specialist
Analyzes conversion funnels across acquisition, activation, and monetization stages, identifying drop-off points, statistical significance of changes, and optimization opportunities using event data.
Policy Impact Evaluation Expert
Design and analyze rigorous policy impact evaluations using causal inference methods including difference-in-differences, regression discontinuity, synthetic control, and propensity score matching.
Data Contract Governance Specialist
Designs and enforces formal data contracts between producer and consumer teams, implementing schema governance, automated quality testing, and graduated enforcement strategies to ensure upstream data discipline.
Dataset Curation Specialist
Guide the end-to-end curation of high-quality datasets for machine learning. Covers data collection strategies, cleaning pipelines, annotation workflows, bias auditing, deduplication, and dataset documentation following data-centric AI principles.
BigQuery Analytics Expert
Expert in Google BigQuery — SQL analytics at scale, partitioning and clustering strategies, BigQuery ML, materialized views, Dataform pipelines, cost optimization, and data governance.
LLM Observability Engineer
Expert guidance for building comprehensive observability into LLM-powered applications — covering tracing, cost tracking, quality monitoring, latency analysis, and automated alerting across model providers.
MongoDB Atlas Production Expert
Guides teams through MongoDB Atlas production deployments — cluster architecture, performance optimization, Atlas Search, security hardening, backup strategies, and cost management for cloud-native document database workloads.
Streaming ETL Architect
Design and build production-grade real-time data pipelines using Apache Kafka, Flink, Spark Streaming, and CDC patterns with exactly-once semantics and operational observability.
Outcome Indicator Architect
Designs measurable outcome indicator frameworks for social impact programs, including theories of change, logic models, SMART indicators, and results-based monitoring systems.
Dashboard Design Strategist
Guides you through designing effective, insight-driven dashboards with proper KPI selection, visual encoding, and data storytelling — applying Tufte and Few principles to avoid common anti-patterns.
GA4 Exploration Reports Analyst
Master GA4 exploration reports to extract actionable insights from funnel analysis, path exploration, cohort retention, and segment comparisons for data-driven decisions.
Survey Design Expert
Design rigorous, bias-minimized surveys — from research objective clarification and question writing to sampling strategy, skip logic, and analysis planning.
Geospatial Data Analyst
Guides geospatial data analysis including GIS fundamentals, PostGIS spatial queries, coordinate systems, geocoding, spatial indexing, and map visualization. Helps design location intelligence solutions and spatial analytics workflows.
Real-Time Feature Serving Expert
Design and operate low-latency feature delivery systems for production ML, including feature store architecture, online/offline consistency, streaming pipelines, and serving infrastructure optimization.
Vercel AI SDK Developer
Build production-grade AI-powered features using the Vercel AI SDK with streaming responses, structured outputs, tool calling, and multi-provider support in Next.js applications.
Event Schema Architect
Designs normalized event tracking schemas for product analytics, defining event taxonomies, property standards, and validation rules to ensure consistent data collection across teams.
Geo Experiment Designer
Design rigorous geographic experiments (geo-lift tests) to measure the true incremental impact of marketing campaigns, product launches, and pricing changes using causal inference methods.
n8n AI Workflow Architect
Design and build production-grade n8n automation workflows integrating LLMs, RAG pipelines, and AI agents with robust error handling and cost optimization.
Model Deployment Optimizer
Optimizes ML model deployment for production inference including quantization (INT8/INT4), knowledge distillation, ONNX/TensorRT conversion, model pruning, batching strategies, and edge deployment for reducing latency and cost.
Generative AI Application Designer
Architect production-grade AI applications with prompt chaining, agent patterns, guardrails, cost optimization, and multimodal capabilities for reliable LLM-powered systems.
Supervised Learning Engineer
Expert in supervised learning pipelines — classification, regression, model selection, hyperparameter tuning, and production deployment with scikit-learn, XGBoost, and LightGBM.
Skills Taxonomy Implementer
Designs and implements enterprise skills taxonomies and competency frameworks that enable skills-based workforce planning, internal mobility, gap analysis, and learning path mapping using validated I/O psychology methodologies.
Neural Network Debugger
Diagnoses and resolves neural network training failures including gradient issues, loss plateaus, overfitting, and suboptimal hyperparameters. Provides systematic debugging workflows with actionable fixes.
Product Lifecycle Analysis Expert
Conduct environmental lifecycle assessments (LCA) of products following ISO 14040/14044, covering goal definition, inventory analysis, impact assessment, and improvement recommendations for sustainable product design.