Efrain Calderon

Efrain Calderon

Efrain Calderon

Senior Product Designer • Ex-Oscar • Ex-Cityblock

8 years in health tech at high-growth startups. I thrive there by staying curious and shipping work that actually helps. See it: www.efrain.design I've spent the last four years at Cityblock designing tools for clinicians, care teams, and patients across the full member journey.

LinkedIn Portfolio Portfolio

2024 — NowDesignlabUX/UI Mentor

2024 — Now

Mentoring early-career designers through UX and visual design fundamentals — Figma, responsive design, accessibility, and design thinking.

2022 — 2025Cityblock HealthSenior Product Designer

2022 — 2025

2021 — 2022Cityblock HealthProduct Designer

2021 — 2022

2018 — 2020Oscar HealthSenior Analyst, Oscar Appointments

2018 — 2020

New York, New York

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Subject matter expert in a cross-functional team with product, data, and engineering stakeholders continuously improving patient appointment product.

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Conducted user interviews and ethnographic research.

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Developed user stories to share with the team.

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Negotiated with hundreds of doctors and physician groups to make appointments available online.

2017 — 2018Oscar HealthCoordinator, Partner Program

2017 — 2018

Greater New York City Area

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Developed relationships with high value physicians and persuaded them to use our appointment tool

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Redesigned outreach process to reduce cycle time by 50%

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Led an external team of 3 photographers and 2 editors to meet contracted deadlines

Education

Designlab

UX Academy Graduate

New Jersey City University

Bachelor of Arts (B.A.)