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Esteban Benjamin Sitek

Available to hire

I am Esteban Benjamin Sitek, a Senior Full Stack Engineer with 11+ years of experience building scalable, secure, and high-performance web applications across healthcare, telehealth, and health-IT.

About

I am Esteban Benjamin Sitek, a Senior Full Stack Engineer with 11+ years of experience building scalable, secure, and high-performance web applications across healthcare, telehealth, and health-IT. I specialize in Python backend (FastAPI, Django) and modern frontend engineering using React/Next.js and Vue/Nuxt, crafting end-to-end systems with microservices and cloud-native architectures. I’m passionate about delivering polished, accessible UIs and optimizing backend pipelines to boost performance and reduce costs.

I focus on clean architecture, teamwork, and mentoring, driving faster product delivery through modern frontend architectures (SSR, SSG, microfrontends, design systems) and robust backend services. I am dedicated to user-centric healthcare technology and building solutions that empower clinicians and patients alike.

  • 11 years' experience
  • Joined December 2025

Industry experience

  • Healthcare
  • Software & Internet
  • Professional Services

Work experience· 4 roles

Senior Software Engineer · RulaJun 2024 – Present · 2 yrs 6 mos

Built secure clinician dashboards using Nuxt 3 + Vue 3 (SSR) and integrated Nuxt microfrontends into an existing Next.js platform via Module Federation, enabling independent deployments and reducing cross-team regressions. Developed shared UI components and composables (Nuxt 3 + Tailwind + TypeScript), improving developer velocity. Refactored scheduling and billing UIs to reduce navigation friction. Delivered FastAPI/Django microservices for claims, scheduling, and billing, increasing throughput. Built AI-driven clinical data pipelines to cut processing time, improved PostgreSQL performance with Redis caching, and implemented Kafka/RabbitMQ event-driven workflows. Automated deployments with Kubernetes + GitLab CI/CD, increasing uptime.

Senior Full Stack Engineer · CareSimpleOct 2022 – May 2024 · 1 yr 8 mos

Modernized clinician dashboards with Vue 3 + Vite, reducing bundle size and improving interaction latency. Built analytics dashboards with Next.js + GraphQL to dramatically reduce data retrieval time. Implemented Redux Toolkit + React Query for real-time vitals syncing and reduced unnecessary re-renders. Created a shared Storybook component system to accelerate feature development. Developed high-volume Python/Django APIs powering logistics, remote monitoring, and enrollment flows; re-architected core workflows with AWS Lambda + SQS + DynamoDB, tripling throughput and alleviating queue backlogs. Containerized services into AWS ECS/Fargate for increased reliability; built Selenium-based E2E testing suite to reduce UI regressions.

Full Stack Engineer · MedSpecializedJul 2018 – Sep 2022 · 4 yrs 3 mos

Developed patient- and clinician-facing modules using React + TypeScript, migrated legacy components to React Hooks + Context, and improved performance and accessibility. Led migration to REST + GraphQL, improving integration reliability and feature delivery speed. Mentored junior engineers and led major healthcare platform initiatives (Telehealth Scheduling & Assessment Dashboard), boosting release velocity and quality.

Full Stack Developer · &youNov 2014 – Jul 2018 · 3 yrs 9 mos

Education

Bachelor's degree in Computer Science · Ateneo de Manila University2010 – 2014

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