Vetted A/B Testing Professionals

“Cloud/distributed-systems engineer who has shipped real-time, offline-capable ledger/expense infrastructure and solved tricky cross-layer production bugs (carrier handoff retries causing duplicate writes) using packet captures and device logs. Also built modular Python ETL/catalog pipelines for e-commerce with config-toggled plugins for customer-specific pricing/SKU rules, and iterated product changes directly with on-site fulfillment operators using feature flags.”

“At Provenbase, built and shipped a production LLM-powered semantic search and candidate matching platform (RAG with GPT-4/Gemini, multi-agent orchestration, Elasticsearch vector search) to scale sourcing across 10M+ candidate records and 1000+ data sources. Drove sub-second performance, cut LLM spend 30% with routing/caching, and improved recruiting outcomes (+45% sourcing accuracy; +38% visibility of underrepresented talent) through bias-aware ranking and tight collaboration with recruiting stakeholders.”

“Growth creative specialist who builds and iterates high-volume, platform-native paid social ads for an AI app (Smarter Chat), using performance analytics (hook/hold rates) to engineer creative improvements. Developed a POV/"hidden camera" confrontation concept around infidelity that achieved a $2 CPA and influenced broader creative strategy toward more authentic, unscripted-feeling social content.”

“Built and productionized a domain-specific LLM-powered RAG knowledge assistant at JerseyStem for answering questions over large internal document corpora, owning the full stack from FAISS retrieval and LoRA/QLoRA fine-tuning to AWS autoscaling GPU deployment. Drove measurable gains (28% accuracy lift, 25% latency reduction) and improved reliability through hybrid retrieval, grounded decoding, preference-model reranking, and Airflow-orchestrated pipelines (35% faster runtime), while partnering closely with non-technical stakeholders to define success metrics and ensure adoption.”

“Performance marketer who has personally owned and optimized $300K–$600K/month paid media budgets across Google and Meta, focused on lead gen and pipeline growth. Uses disciplined testing (creative/audience/bid), daily monitoring, and landing page/conversion-path optimization to improve CPL and lead quality, including experience in early childhood education campaigns (e.g., Endeavor).”

“Built and launched his own free-to-play mobile trivia games (Unity/Xcode/Android Studio), monetizing through IAPs and multiple ad networks (AppLovin/Chartboost/AdMob). Combines hands-on implementation with growth and analytics rigor—Facebook Ads + ASO, and daily tracking of retention, crashes, conversion, and LTV:CAC—plus a clear approach to A/B testing and live events tooling.”