Samuel Garcia Hidalgo

Tech lead for Wizeline's engineering team embedded in Dow Jones's Barron's & MarketWatch (BMW) group, covering full-stack development, AWS edge infrastructure and production support for both properties.

• Lead the migration of Barron's and MarketWatch from Next.js Pages Router to Next.js 16 App Router and Dow Jones's Index Design System; designed and built the AI-guided migration tool (Claude-based agents, skills and guard hooks with phase-gated plans and immutable baselines) the team uses to move pages and components into the new monorepo.
• Architected Barron's AI Stock Screener after inheriting an unrunnable prototype from another team: defined and built its Terraform infrastructure (Aurora MySQL cluster, DynamoDB conversation store, private VPC endpoints to Amazon Bedrock, IAM) inside our multi-account landing zone, and adapted the Python/FastAPI/LangChain multi-agent backend (natural-language-to-SQL over market data, Claude on Bedrock, Langfuse tracing) to run on Barron's platform. #2 contributor on both repos; in coordination with Dow Jones's infrastructure team. Currently in stakeholder evaluation and data-licensing review ahead of launch.
• Grew Wizeline's footprint on the account from a single engineer (me) to 7, soon 9: ran ~30 technical interviews (~6 candidates per hire) and onboarded every Wizeline engineer plus Dow Jones direct hires.
• Built the sprint-metrics tooling that surfaced under-delivery and blockers; the team went from ~80% to 95-102% of planned work delivered, and its reports are now used by Wizeline's delivery manager in client reporting.
• Ran coaching sessions with the client's engineering manager to resolve team-wide performance concerns; act as the technical reference for the client's team lead and Wizeline's delivery manager, unblocking engineers on complex issues.
• Respond to production incidents, including hot-fixing regressions mid-deployment on high-traffic pages.

Full-stack engineer embedded in Dow Jones's Barron's & MarketWatch team for three years, working across everything the two domains required: front-end, back-end services and AWS edge infrastructure.

• Developed and maintained features on Dow Jones's shared server-side-rendered platform (Node.js/Express, React, GraphQL) serving Barron's, MarketWatch and sister brands, including paywall/entitlement flows and A/B-tested experiences, with New Relic observability.
• Co-executed the migration of Barron's from the legacy monolith to a Next.js (Pages Router) monorepo, rewriting pages and components in TypeScript with unit and integration test coverage.
• Maintained the CloudFront/Terraform edge layer for both domains (cache and origin-request policies, WAF, Lambda@Edge redirects) in a multi-account nonprod/staging/prod setup, and participated in production incident response.
• Worked in a Scrum team with US-based product and engineering stakeholders, in English, across all ceremonies.
• Mentored ~5 junior developers and conducted ~30 JavaScript/React technical interviews for Infosys; recognized with an Insta Award (2022).