Vetted A/B Testing Professionals

Katsiaryna Hanus

Screened

Mid-Level Unity Developer specializing in VR/AR/XR and mobile multiplayer

Poznań, Poland6y exp

“Unity VR developer who has shipped multiple Meta Quest games and navigated strict Meta QA/product requirements, with a strong focus on profiling-driven FPS optimization. Co-developed the Meta-delivered title "Shark Bait VR" (2-person dev team), tackling VR comfort (anti-nausea swimming), realistic rope behavior, and fish AI, and has also implemented cross-platform mobile push notifications via Firebase/APNS with Jenkins+CocoaPods.”

Sai Vamsee Bandaru

Screened

Entry-level Data Analyst and AI Engineer specializing in machine learning and LLM systems

New York, NY1y exp

“Founding-engineer-oriented full-stack product engineer who built an AI tutor system end-to-end, spanning React UI, FastAPI backend, retrieval/LLM pipelines, and Postgres optimization. Stands out for combining product thinking with deep systems work: improving onboarding and activation, shipping quickly with beta users, and abstracting reusable retrieval infrastructure for multiple use cases.”

“UX Designer who has shipped end-to-end mobile and web experiences, including a student library companion app integrated with Canvas to reduce navigation friction and overwhelm. Also built information architecture and navigation for a bead e-commerce site (Beadalon) using Miro/WordPress/WooCommerce and validated improvements via analytics. Has experience designing a mental-health journaling companion with guided prompts and sketching based on student interviews and prototype testing.”

Volodymyr Rudenko

Screened

Senior Front-End Engineer specializing in React/TypeScript and Next.js for FinTech & SaaS

Calgary, AB9y exp

“Frontend engineer with deep experience in crypto/fintech products, including leading a Next.js/TypeScript crypto wallet and microfrontend platform at 200–300k daily transactions and building a real-time trading dashboard. Strong in scalable architecture (microfrontends + BFF), quality systems (Storybook, testing, Sentry), and performance optimization (including a 30% bundle-size reduction), with proven feature-flagged rollouts and iterative delivery.”

Steve Sutjiono

Screened

Junior Business Development & Marketing professional specializing in events and partnerships

Surabaya, Indonesia3y exp

“Creator/KOL partnerships and growth professional with experience at BingX, driving multiple seven-figure revenue partnerships through referral-led scaling. Uses incentive-aligned deal structures (commission vs upfront), A/B testing, and community/event-based activations (e.g., trading signals) to lift revenue (reported +50%) and build long-term creator relationships.”

John Kenny

Screened

Senior Full-Stack Engineer specializing in Web3 and FinTech

Global, Remote6y exp

“Full-stack engineer with deep startup experience (pre-seed through IPO/SPAC) currently building a Next.js/TypeScript SaaS sports analytics platform with a complex Postgres-based entitlement/ACL system. Has delivered measurable UX/business impact (35% retention lift, 40% volume increase) and built production-grade daily ETL + model training/inference workflows with validation and checkpointing for reliability.”

William Shaw

Screened

Mid-level Performance Media Buyer specializing in Meta Ads and Google Ads

Belo Horizonte, Brazil4y exp

“Performance marketer who scaled a digital education product using Meta and Google Ads, growing from ~$40K to $200K monthly revenue while increasing spend, then reaching $800K revenue in a single month on $70K ad spend (ROAS 10). Strong in direct-response funnel optimization (creative, landing page, checkout, offer/AOV) with disciplined testing methods (sample size validation, URL split testing) and clear client communication.”