Liyona Johny Full-Stack Software Engineer
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Projects

Selected work

Six builds covering the range, from clinical research tooling to enterprise Java backends. Three have full case studies behind them.

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  • Digital Twin Platform

    2023 to 2025

    Santane Ltd

    Real-time simulation and analytics platform managing live data streams, validating every input on ingest and delivering processed output to the interface.

    • FastAPI services and React interfaces that visualize live twin data.
    • JWT authentication and role-based access control across both API and UI.
    • AWS environments provisioned and operated with Docker, Git, and Jenkins pipelines.
    • FastAPI
    • React.js
    • SQLAlchemy
    • Pydantic
    • MySQL
    • AWS

    Read the case study

  • ClinicalPilot AI

    2025 to 2026

    AI-powered clinical research platform, MCA major project

    A research platform that takes messy clinical datasets and turns them into something a researcher can question directly.

    • Automated dataset validation and cleaning before anything reaches analysis.
    • AI-assisted paper summarisation and dataset question answering on a retrieval pipeline.
    • Interactive dashboards for cohort discovery.
    • Python
    • FastAPI
    • React.js
    • PostgreSQL
    • Pandas
    • RAG

    Read the case study

  • Music School Management App

    2026

    Freelance client build

    A scheduling and administration application for a music school, with family accounts and a moderated messaging layer.

    • Scheduling, family accounts, and moderated messaging between staff and families.
    • Role-based access with audit logging on sensitive actions.
    • Single sign-on into LearnDash so students move between systems without a second login.
    • Python
    • FastAPI
    • React.js
    • PostgreSQL
    • LearnDash

    Read the case study

  • High-Performance Client Sites

    2026 to present

    US web studio

    Marketing and commerce sites built to a performance budget, with technical SEO and structured data treated as build requirements rather than a later pass.

    • Astro and WordPress builds with custom child themes and WooCommerce.
    • Tuned against Core Web Vitals, with sitemaps and crawler configuration set up at launch.
    • Structured data and accessibility checks run before handover.
    • Astro
    • WordPress
    • WooCommerce
    • Core Web Vitals
    • SEO

    See the detail

  • Drug Recommendation System

    2022 to 2023

    MCA mini project

    A web application wrapping machine-learning recommendation logic, with a validation layer that normalizes inconsistent source data first.

    • Validates and normalizes inconsistent drug, dosage, and interaction data before model processing.
    • Django application surfacing the model output through a simple clinical interface.
    • Python
    • Django
    • MySQL
    • Scikit-Learn

    See the detail

  • Enterprise Logistics Platform

    2019 to 2022

    Infosys Ltd

    A large-scale Spring Boot microservices backend, enhanced and kept stable under real production load.

    • Enhanced and maintained a Spring Boot microservices backend for a large enterprise client.
    • Resolved complex production incidents through structured root cause analysis.
    • Improved system stability by 20 percent and cut response times through caching and query tuning.
    • Java
    • Spring Boot
    • Hibernate
    • Oracle
    • SQL Server

    See the detail

Next step

Looking for someone to own this end to end?

I am open to full-stack engineering roles and to contract builds. Tell me what you are trying to solve and I will tell you honestly whether I am the right person for it.

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  • Replies: Within two working days
  • Based in: the United States
  • Open to: full time, contract, remote or hybrid

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