Christos (Kitsos) Orfanopoulos

Senior Software Engineer · Technical Lead · Health Tech

Profile

Senior full-stack engineer and technical lead with a track record of taking healthcare products from concept to production. Java and Spring Boot on the backend, React on the front, AWS underneath, and teams of 5–10 engineers across three countries shipping weekly into U.S. hospitals under HIPAA.

Experience

  1. Veltiston AIAthens, hybrid

    Senior Software Engineer

    May 2026 – present

    Full-stack Software Engineer

    May 2024 – May 2026
    • One of the first engineers at an AI healthcare startup founded by MIT Professor Dimitris Bertsimas; grew into Technical Lead of the flagship Nurse Scheduling platform and project lead on three projects.
    • Architected and built the cloud-native Nurse Scheduling platform (Java, Spring Boot, React, MySQL, AWS), now live in four major U.S. hospitals.
    • Leads cross-functional teams of 5–10 developers across Greece, Boston (USA) and Morocco: architecture, technical decisions, code reviews and sprint planning.
    • Delivered an AI documentation assistant (Spring AI, RAG), SMART on FHIR apps inside Epic EHR, SAML 2.0 SSO, UKG integration, notifications and audit logging.
    • Modernised a legacy Java/Angular application through Agile practices, engineering standards, CI/CD, documentation and incremental refactoring.
    • Ships weekly, secure, HIPAA-compliant releases with customers, Product, QA and DevOps; runs technical interviews, mentors and onboards engineers.
    • Java
    • Spring Boot
    • Spring AI
    • React
    • MySQL
    • AWS
    • Docker
    • Jenkins
    • GitLab CI
    • Flyway
    • SMART on FHIR
    • SAML
    • Grafana
    • Sentry

  2. Holistic Hospital Optimizationcontract, remote

    Lead Software Engineer

    May 2024 – present
    • Software lead on AI-powered healthcare applications for U.S. hospitals: nurse scheduling, length-of-stay optimisation and SMART on FHIR integrations.

  3. IBMAthens, on-site

    DevOps Engineer

    November 2023 – May 2024
    • Core banking transformation at the National Bank of Greece: migrating legacy PL/I and COBOL systems to Infosys Finacle.
    • Designed the integration architecture for legacy subsystems in both the coexistence and target states.
    • Deployments and CI/CD automation with Jenkins, Podman, ELK and Grafana.
    • Represented IBM Greece at an international Agile & Enterprise Design Thinking bootcamp in Hamburg.
    • Jenkins
    • Podman
    • Docker Compose
    • ELK Stack
    • Grafana
    • Jira
Christos (Kitsos) OrfanopoulosLast updated 25 September 2026 · 1 / 2
Christos OrfanopoulosSenior Software Engineer

Leadership & service

  1. Hellenic Army / Special Forces

    Reservist Second Lieutenant in Marine Special Forces

    September 2022 – 22 November 2023
    • Platoon Leader, Weapons Officer and Deputy Company Commander in a Marine Company; graduated 3rd in class from the Infantry Reserve Officers School.

  2. Christian Youth Foundation “Pantokrator”

    Director

    February 2021 – September 2022
    • Held alongside university studies: ran the foundation’s premises, staff, volunteers, budget and events, and led its renovation and modernisation.

  3. Citylab

    Robotics tutor

    2020 – 2021
    • Taught robotics classes to children alongside university studies.

Education

  1. National Technical University of Athens (NTUA)

    MEng, Electrical & Computer Engineering

    2017 – 2022 · GPA 8.4
    • Integrated five-year Master of Engineering, completed in the nominal five years.
    • Thesis on movement compliance analysis with machine learning, graded with distinction and later published.

  2. Model High School of Ionidios, Piraeus

    2015 – 2017 · GPA 19.9 / 20
    • Ranked 1st in the entrance exam; Piraeus prize for the top graduating grade of 2017.

  3. Model Junior High School of Evangeliki, Nea Smyrni

    2011 – 2015
    • Ranked 1st in the admission exam; first of the class every year.

Publications

  1. arXiv, Cornell University

    An M-Health Algorithmic Approach to Identify and Assess Physiotherapy Exercises in Real Time

    11 December 2025
    • Real-time, on-device assessment of physiotherapy exercises from a phone camera: pose estimation, angle features, lightweight classifiers and a modified Levenshtein distance.

Beyond work

Students’ representative and co-founder of the Independent ECE Students at NTUA: e-voting, a depoliticised assembly, and representation by lawful, democratic means.