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Open to full-stack, product engineering, founding engineering, and applied AI opportunities.

Building intelligent products from idea to impact.

I’m Yuyun Francis Berinyuy—a Full-Stack Engineer and technical founder building scalable web, mobile, and AI-powered products. My work spans enterprise software, social platforms, and healthcare technology serving thousands of people.

Explore My WorkDownload Résumé

Based in California, United States

Portrait of Yuyun Francis Berinyuy
years building production software
0+
users reached through Check Me
0+
raised for health-tech innovation
$0+
recognized in London, United Kingdom
Nebius AI Discovery Awards

Featured Work

Products, not just projects.

Each of these is a product story: a real problem, the decisions behind the build, and what happened after it shipped.

More selected work

  • Full-Stack Internship · 2024

    MobireHab

    Patient management system for a rehabilitation-tech company. Contributed to a 25% improvement in user engagement and a 40% reduction in deployment time through CI/CD work.

    ReactNode.jsCI/CD

  • Frontend & Design Training · 2022–2024

    CAMSOL Redesign

    Led the frontend redesign of the company website, contributing to a 30% increase in site traffic, and ran a design training program in which every participant secured employment.

    ReactUI/UXFigma

  • Software Consultant, Kalio Sarl · 2022

    Crop Monitoring App

    React Native app for farmers with IoT features and image-processing tools for analyzing crop health, helping farmers make informed decisions and improve yield.

    React NativeIoTImage Processing

Experience

Where I’ve built.

Enterprise platforms, startup products, and everything it takes to ship them.

  1. Tata Consultancy Services

    AI & Data Engineer

    Oct 2025 — Present

    Building production AI platforms and enterprise software for consulting and healthcare clients.

    • Built an AI cost-intelligence platform from scratch with Next.js, FastAPI, and Supabase, helping consultants understand the real cost of running AI across cloud providers and LLM models.
    • Worked on Prism, an internal tool that uses AI agents to automate requirements gathering and process documentation for SAP consultants, cutting manual effort by 50%.
    • Built Loom, a dashboard component kit that generates custom, on-brand client dashboards from a simple intake form.
    • Designed a white-label AI control plane for a healthcare payer with advanced RBAC, human-in-the-loop claim adjudication, and end-to-end data lineage.
    FastAPINext.jsReactTypeScriptPythonSupabase

  2. Crew Social

    Full-Stack Developer

    Jan 2025 — Present · Pennsylvania, USA (Remote)

    Owning the Crew mobile app end-to-end, from React Native features to Node.js backend services.

    • Built and maintained the Crew mobile app end-to-end with React Native and Node.js.
    • Implemented comprehensive test coverage and structured code reviews, reducing production bugs.
    • Mentored a junior developer into a fully independent member of the remote team ahead of schedule.
    • Led two-week development sprints in Jira, consistently delivering features ahead of schedule.
    React NativeNode.jsTypeScriptJira

  3. Check Me Ltd

    Founder & CEO

    Apr 2023 — Present

    Leading product, engineering, and clinical partnerships for an AI-powered breast-cancer early-detection platform.

    • Founded a platform serving 10,000+ users in underserved communities.
    • Built Nia, a women’s health AI companion using RAG with LangChain, OpenAI, and FastAPI.
    • Raised $75,000+ in funding, won the WSIS e-health prize at the ITU World Summit in Geneva, and received the Nebius AI Discovery Award in London.
    • Led product strategy, clinical partnerships, and the roadmap for an IoT-enabled ultrasound platform that increased patient access by 40%.
    FastAPILangChainOpenAIReactProduct Strategy

  4. MobireHab

    Full-Stack Developer Intern

    May 2024 — Aug 2024

    Improved a patient management system and its delivery pipeline.

    • Built and improved a patient management system with React.js and Node.js, increasing user engagement by 25%.
    • Implemented CI/CD pipelines that cut deployment time and reduced manual release effort by 40%.
    • Helped cut crash incidents by 30% and raise user satisfaction scores by 20%.
    ReactNode.jsCI/CD

  5. CAMSOL Technologies

    Software Developer — Frontend

    Oct 2022 — May 2024 · Berlin, Germany

    Led the frontend redesign of the company website and ran an in-house design training program.

    • Led the frontend redesign of the company website, contributing to a 30% increase in site traffic.
    • Designed and ran an in-house design training program; every participant secured employment through hands-on project mentoring.
    ReactUI/UXFigma

  6. Kalio Sarl

    Software Consultant

    Feb 2022 — Nov 2022

    Built a React Native app that helps farmers monitor crop health.

    • Designed and developed a mobile app for farmers using React Native to support crop monitoring.
    • Integrated IoT features and image-processing tools to help analyze crop health.
    React NativeIoTImage Processing
Illustrated portrait of Yuyun Francis Berinyuy in a navy suit

About

Engineer first. Builder always.

I’m a Full-Stack Engineer, product builder, and founder based in California. My work sits at the intersection of full-stack engineering, applied AI, and products that improve people’s lives.

I enjoy working across the entire product lifecycle—from understanding the problem and shaping the user experience to designing the architecture and shipping the final product. This has allowed me to build enterprise AI platforms, mobile social experiences, multilingual machine-learning systems, and healthcare technology serving thousands of people.

I’m especially drawn to ambitious teams where engineers have meaningful ownership, move quickly, and stay close to the people using what they build.

  • MSc in Information Technology — Carnegie Mellon University Africa
  • BSc in Software Engineering — ICT University
  • Founder & CEO of Check Me Ltd, a health-tech startup
  • Mentor and team lead across engineering and design

Beyond engineering, I’ve supported more than 60 young people through Energetic Youths in Action—mentorship is a habit, not a side project.

Capabilities

Organized by what I can ship.

Not a logo cloud—these are the capabilities I use to take products from idea to production.

  • Product Engineering

    • React
    • Next.js
    • React Native
    • TypeScript
    • Node.js
    • REST APIs
    • Responsive web interfaces
    • Mobile app development

  • Backend & Systems

    • Python
    • FastAPI
    • Authentication
    • Role-based access control
    • Multi-tenant architecture
    • Redis
    • Supabase
    • API design

  • Applied AI

    • Retrieval-augmented generation
    • LangChain
    • OpenAI
    • Anthropic Claude
    • PyTorch
    • Hugging Face
    • Scikit-learn
    • Inference optimization

  • Infrastructure

    • Docker
    • Kubernetes
    • AWS
    • GitHub Actions
    • Fly.io
    • Vercel

  • Product & Design

    • Figma
    • UI/UX design
    • Prototyping
    • User-centered design
    • Product strategy

Education & Recognition

Credentials and milestones.

Education

  • Carnegie Mellon University Africa

    2023 — 2025

    MSc, Information Technology

    Kigali, Rwanda

    Founded Check Me Ltd during the program; raised $75,000+ and won the WSIS e-health prize at the ITU World Summit in Geneva.

  • ICT University

    2018 — 2022

    BSc, Software Engineering

    Yaoundé, Cameroon

Awards, Funding & Recognition

  • WSIS e-health Prize

    Won at the ITU World Summit, Geneva, Switzerland — for Check Me.

  • Nebius AI Discovery Award

    Received in London, United Kingdom — for Check Me.

  • $75,000+ Raised

    Funding and support raised for Check Me’s health-tech mission.

  • CMU-Africa Innovation Hub

    Venture support for Check Me.

  • Swartz Center for Entrepreneurship

    Entrepreneurship support for Check Me.

Contact

Let’s build something that matters.

I’m interested in full-stack engineering, product engineering, founding engineering, and applied AI opportunities where I can take meaningful ownership and help turn ambitious ideas into dependable products.

Send a message