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Ces107/README.md

Hi, I'm César

Biomedical engineer and backend developer based in Valencia, Spain.

I work on the intersection of software engineering, healthcare interoperability and compliance tooling. Day job is Java/Spring on hospital information systems at Laberit. On the side I build small, focused tools around DICOM, FHIR and the regulatory surface that comes with shipping software into clinical environments (MDR, GDPR, SBOMs).

What I work on

Computer vision applied to medical imaging. My final-year thesis (RiuNet, UPV) trained a multi-instance-learning classifier on histopathology whole-slide images using CONCH foundation-model embeddings, and measured inter-hospital fairness gaps on the AI4SkIN skin-cancer dataset. F1 0.89 weighted, inter-hospital gap 0.19. Bias measurement on SaMD is a topic I care about a lot.

Backend in Java / Spring Boot. Two years writing production code against HIS/RIS/PACS-adjacent systems. I am comfortable with JPA, transactional design, message-driven workflows (RabbitMQ), and the kind of integration plumbing that healthcare software inevitably needs.

Selected repos

  • dcm-anon: DICOM anonymization toolkit, mapped to GDPR Art. 35 DPIA and HIPAA Safe Harbor.
  • dcm-anon-vault: hosted single-tenant pseudonymization API on top of dcm-anon, PS3.15 Basic Profile, deterministic per-customer UID remap.
  • fmm-fairness-eval-cli: fairness and bias evaluation CLI for medical AI, research output from the TFG line of work.
  • zesFin: personal finance and FIRE calculator, Spring Boot REST + React/Vite/TS. Side project, Boglehead-style portfolio manager.

I also curate a few awesome-* lists in areas adjacent to the work above: healthcare, FHIR, DICOM, SBOM, GDPR, compliance.

Stack

Python, Java, Spring Boot, JPA/Hibernate, PostgreSQL, RabbitMQ, Docker, React (Vite/TS). PyTorch for the imaging side. Linux at home, Windows at work.

Reach me

  • LinkedIn: césar-pereiro
  • Email: open an issue or DM on LinkedIn first.

Popular repositories Loading

  1. dcm-anon dcm-anon Public

    DICOM anonymization toolkit (GDPR Art. 35 DPIA / HIPAA Safe Harbor mapped). Pre-launch staging - public Sunday.

    Python 5

  2. RabbitMQ-dead-letter-queue-test- RabbitMQ-dead-letter-queue-test- Public

    Java 3

  3. Ces107 Ces107 Public

    Config files for my GitHub profile.

    1

  4. fmm-fairness-eval-cli fmm-fairness-eval-cli Public

    Foundation Model for Medicine — fairness/bias evaluation CLI for medical AI (research)

    Python 1

  5. awesome-dicom awesome-dicom Public

    Forked from open-dicom/awesome-dicom

    A curated list of awesome DICOM resources and libraries.

    1

  6. dcm-anon-vault dcm-anon-vault Public

    Hosted single-tenant DICOM pseudonymization API wrapping dcm-anonymizer (PS3.15 Basic Profile). Stripe billing, audit log, deterministic per-customer UID remap.

    Python 1