Vetted Data Visualization Professionals

Jonathan McGrath

Screened ReferencesModerate rec.

Senior Full-Stack/AI Engineer specializing in mobile and web product development

San Francisco, CA14y exp

“Built an end-to-end mobile + web Q&A marketplace connecting users with professionals, including real-time chat and Stripe-based monetization (products/subscriptions). Hands-on with scaling Firebase/Firestore (subcollections, composite indexing, pagination) and mobile caching/sync challenges. Also created an internal AI-driven report generator that turned chatbot outputs into curated graphs and PDFs for marketing, iterating based on stakeholder feedback.”

“Frontend engineer focused on scalable architecture and long-term maintainability, emphasizing modular component design in React + TypeScript. Has experience building reusable component libraries (including Storybook and shared repos) and collaborating with design/product to refine UX workflows, reducing development time over successive iterations.”

Rangel Koli

Screened

Entry-level Software Engineer specializing in backend and cloud systems

New York City, NY1y exp

“Backend engineer who built and scaled a zero-to-one social product backend using Supabase (Postgres, Edge Functions, Auth, Realtime) plus Neo4j for graph-based friend recommendations. Demonstrates strong production rigor: staged rollouts with metrics, incident rollback/postmortems, and complex schema refactors using expand-contract/dual-write with reconciliation and feature flags. Notably proactive about edge cases like geo-boundary realtime delivery and idempotent retry safety.”

“Frontend engineer (Teradata) who led an enterprise analytics dashboard end-to-end, building complex React + TypeScript interfaces with near-real-time updates and large data volumes. Strong track record in scalable frontend architecture, performance tuning (render optimization, payload reduction), and quality at speed via CI/CD, automated regression testing, and incremental rollouts in an Agile environment.”

“Customer-facing platform support professional focused on application security and reliability for SaaS integrations, with hands-on experience troubleshooting API auth failures and data update issues using Linux/app/DB logs, SQL, and monitoring. Demonstrates strong security fundamentals (least privilege, TLS/access controls, credential rotation) and can design secure AWS agent integrations while also supporting Azure containerized REST API deployments via CI/CD.”

David McGrouther

Screened

Senior Solutions Engineer specializing in SaaS demos, technical validation, and customer-facing engineering

San Francisco Bay Area, CA10y exp

“Solutions Associate / technical support professional with experience assessing and fixing multi-script JavaScript issues, providing timelines, and managing scope changes with customers. Has supported customers by diagnosing recurring campaign issues, running technical demos with stakeholder feedback loops, and enabling self-service so customers can resolve problems independently.”

“Built a production RAG chatbot for Worcester Polytechnic Institute that indexes 500+ webpages using FAISS + Llama 3, with strong grounding/hallucination controls (confidence thresholds and citations). Also has internship experience orchestrating multi-step ETL pipelines with AWS Step Functions and delivered a 30x faster fraud/claims triage workflow at Munich Re using association rules and stakeholder-friendly dashboards.”

“Built and deployed a production LLM-powered RAG knowledge system to unify operational/policy information across PDFs, wikis, and databases, emphasizing auditability and low-latency/cost performance. Improved answer relevance at scale by moving from pure vector search to hybrid retrieval with metadata filtering and reranking, and partnered closely with healthcare operations/compliance to define acceptance criteria and human-in-the-loop guardrails.”

“Analytics-focused candidate with hands-on experience in both supply chain data and AI product analytics. They have built SQL and Python pipelines for messy ERP/inventory data as well as high-volume user event data, and have driven experimentation, retention measurement, and dashboarding for AI avatar and voice/image cloning features.”

“Lifecycle/CRM marketer from Churchome who led a mobile app onboarding and re-engagement program using behavior-based segmentation, in-app/push messaging, and AI-assisted chat. Drove ~20% lift in early-stage engagement, improved 30-day retention, and reduced support load through automated chat flows and rapid A/B-driven iteration.”

“Chief of Staff and public-sector leader who has stood up new functions from scratch—hiring 26 people and building governance/processes across 8 locations—while navigating high-stakes regulatory stakeholders. In industry, implemented OKRs and performance systems (Leapsome) and led change communications to improve executive productivity and cross-team accountability.”

“Operations-focused analytics candidate with hands-on experience turning messy production and QA data into clean reporting tables using SQL and Python. They have built repeatable Excel-based KPI workflows, defined practical manufacturing performance metrics, and used machine/shift segmentation plus stakeholder-friendly dashboards to reduce defects and improve production efficiency.”

Haytham Soliman

Screened

Principal Real-Time 3D Software Engineer specializing in Unity/Unreal simulation and HMI

Dubai, UAE16y exp

“Gameplay-focused Unity developer who prioritizes tight, fair-feeling controls—implemented a custom raycast-based character movement system (avoiding Unity physics) to make platforming more deterministic and difficulty tuning more reliable. Has prototyped multiplayer in both Unity (Photon tic-tac-toe replication prototype) and Unreal Engine (shared workshop/crafting environment), and actively uses AI tools (Copilot + asset generation) to speed prototyping and documentation.”

Shrutika Chawla

Screened

Senior Full-Stack Developer specializing in React/React Native and SaaS platforms

Edmonton, AB7y exp

“Frontend engineer who has led end-to-end delivery of a climate-risk visualization/financial impact web platform using micro-frontends (Webpack Module Federation), a shared MUI design system, and React Query server-state to keep independent modules consistent and performant. Also improved a complex rules-heavy document editor (Crove.app) by eliminating input lag with memoization + Web Workers and introducing a headless rendering engine reused across products, with disciplined rollout via feature flags and Sentry monitoring.”

David Gil

Screened

Senior Technical Artist specializing in game art pipelines, automation, and localization

Montclair, NJ24y exp

“Marketing creative/production specialist with experience localizing Facebook ads, marketing emails, and animated billboards for regional markets at Hi5 Games and Tiffany & Co. Has built permutation-based ad templates in Figma for crypto/DeFi marketing (CheatDAO/QiDAO) and produces lightweight motion assets using After Effects/Premiere with optimized encoding workflows.”