e4dt4n

Edward Turpin Edward Turpin

Software Engineer

Email
ed@e4dt4n.com
Location
Greater Austin, TX
Web
https://e4dt4n.com

Profile

Software engineer with 13+ years of experience designing and building production systems end to end. I've shipped Python, Javascript, TypeScript, Kotlin, C#, Java, and C in production. Recent work spans backend and AI systems for a healthcare startup, an image classification system for a game for a startup I co-founded, and geospatial data platforms for the energy industry. Comfortable owning a system from architecture through implementation, deployment, and operation.

Experience

Software Engineer at Perioptima.ai

- Present

Founding team, healthcare AI startup focused on post-surgical patient care and ERAS guideline adherence.

  • Joined as a founding backend engineer and owned backend API development: helped design the PostgreSQL/Supabase schema, FastAPI endpoints, and overall service architecture; working directly with the PM from initial scoping through MVP delivery.
  • Built a LangChain/LangGraph RAG pipeline for an AI-powered clinical chatbot: retrieves structured patient records, queries ERAS medical guidelines via vector embeddings, and enforces safety guardrails to keep responses accurate and on-task.
  • Developed a rule-based clinical decision engine with python-experta (CLIPS reimplementation) that dynamically adjusts patient care plans based on real-time health data and patient conditions.
  • Designed Bayesian Network models from peer-reviewed literature for patient risk stratification, feeding structured risk scores into the decision engine alongside real-time sensor data.

Co-Founder, ML and Backend Engineer at Biotascape, LLC

-

Startup focused on building an Pokemon-Go-like educational game involving species classification and custom tactile hardware.

  • Owned the backend as co-founder, from data modeling through deployment, and did a significant amount of the Unity/C# app development.
  • Fine-tuned a BEiT Vision Transformer in PyTorch on millions of iNaturalist images; devised a hierarchical target encoding for fine-grained classification across 350k+ species. Applied knowledge distillation and ONNX quantization to run the model in real time on Android with no network dependency at inference time.
  • Built and operated a containerized cloud inference API; managed a PostgreSQL and MongoDB databases.

Staff Software Engineer at Brigham Minerals

-

Oil and gas mineral rights platform for energy professionals: production tracking, acquisition and divestiture analysis, and asset evaluation.

  • A core developer of Mineral Analytics, a Django + React/Redux platform with PostGIS-backed geospatial search used for acreage evaluation and production analysis.
  • Co-developed the Mineral Aggregator microservice: an medallion-like ETL pipeline ingesting land tract and production data from Texas RRC, state regulatory agencies, Shapefiles, the Enverus API, and third-party feeds into a PostGIS geospatial database, with automated quality checks and an analytics layer on top.
  • Shipped and operated the platform on a self-managed Kubernetes cluster with Jenkins CI/CD pipelines; served as Scrum Master.

Senior Software Engineer at Helios Technologies Inc

-

  • Built real-time fault diagnostic and data visualization interfaces for industrial electronic controllers, displaying live sensor data to operations teams. Stack: TypeScript, Node.js, Electron.js.

Senior Software Engineer at BJN Technologies

-

Software consultancy serving industrial and medical device clients. My work on the Mineral Analytics platform started here.

  • Translated business requirements from medical device, industrial, and mineral rights acquistion clients into production software across multiple concurrent engagements.
  • A primary developer of Mineral Analytics for several years: joined when it was an early Python/jQuery prototype and grew it into a full Django + React/Redux + PostGIS platform, then re-architected the deployment into microservices on a self-managed Kubernetes cluster with CI/CD and Prometheus/Grafana monitoring throughout.
  • Worked across the full stack (frontend, backend, database, DevOps), operated the platform in production with end-to-end monitoring, and mentored junior engineers through code reviews and architecture discussions.
  • Also wrote firmware in C for electronic control systems and a cochlear implant. And built various C#/WPF, PyQt, Angular, and JavaFX desktop applications for debugging, testing, and embedded the embedded hardware.

Technical Skills

  • Languages: Python, TypeScript/JavaScript, SQL, Kotlin, Dart, C#, C
  • Backend: FastAPI, Flask, Django, Node.js/Express, REST API design, microservices
  • Frontend: React/Redux, Vanilla JS, Web Components, Flutter
  • Architecture: System design from scratch, microservice decomposition, ETL pipelines, event-driven patterns, schema design and query optimization
  • AI/ML: PyTorch, Vision Transformers, ONNX quantization and deployment, LangChain/LangGraph, RAG pipelines, vector embeddings, Bayesian Networks, rule-based expert systems
  • Databases: PostgreSQL/PostGIS, Supabase, Redis, MongoDB, SQLite
  • Infrastructure: Self-managed Kubernetes, Docker, Jenkins CI/CD, Prometheus/Grafana monitoring, GCP (container registry, object-storage backups), AWS