Hi, I'm aleph.

AI | Machine Learning | Backend | Cloud Infrastructure | Frontend | Mobile based in 🇩🇪.


Senior Full-Stack ML Engineer with 8+ years shipping end-to-end products. I specialize in owning technical projects from infrastructure architecture to polished user interfaces, with deep expertise in ML systems and AI integration.

I write about tech, language learning, and life on my blog.


Languages
Python JavaScript/TypeScript SQL Rust Go Elixir C++
ML & AI
LLMs LangGraph LangChain PyTorch TensorFlow Transformers Scikit-learn Spacy NLTK OpenCV
Backend
FastAPI Django Flask Pyramid Node.js Phoenix
Frontend
React React Native Next.js Vue.js
Infra
AWS GCP Kubernetes Docker Terraform Packer GitHub Actions ArgoCD Jenkins Nginx
Data
PostgreSQL MySQL MongoDB Snowflake Firebase Spark Pandas NumPy Polars Airflow Elasticsearch
Observability
Prometheus Grafana Loki
GPU
Nvidia CUDA

Work highlights

AI & ML

  • Recommendation & personalization engine - Multi-territory pipeline across 12+ markets, evolved from Spark/TensorFlow to GPT-2 next-deal prediction, BERT4Rec, and NCF embeddings with MMR diversification
    PyTorch HuggingFace Spark Airflow Snowflake
  • Agentic AI travel assistant - Multi-agent LLM orchestration with real-time streaming, shipped to production
    LangGraph AWS Bedrock FastAPI Next.js
  • RAG assistant & eval platform - Marketplace conversational AI with pgvector retrieval, MMR reranking, streaming tool calling, LLM-as-judge evaluation framework, and operational quality dashboards
    RAG pgvector ONNX FastAPI Next.js
  • Sentiment analysis pipeline - Customer feedback processing at scale, reduced manual review by 70%
    Python NLP
  • NLP & content feature engineering - Automated NLP content features, GIS enrichment, Item2Vec embeddings, and content similarity scoring with t-SNE monitoring dashboards
    Spacy Item2Vec Airflow Spark
  • Computer vision system - Real-time dice and player move detection from video streams
    OpenCV Python

Infrastructure & Tooling

  • Real-time ML serving - Prediction APIs handling 1M+ requests/day with low-latency inference
    FastAPI TensorFlow Docker
  • GPU autoscaling platform - Kubernetes workload scaling with Argo Workflows, cut compute costs ~50%
    Kubernetes Argo AWS
  • Cloud resource CLI tools - Custom CLIs to scale, manage, and cost-optimize GPU training, inference, and ETL workloads
    Go Python AWS
  • Production cloud infrastructure - ECS Fargate, RDS, ALB with Terraform IaC across multiple environments; 99.9% uptime
    AWS Terraform ECS

Featured Projects

  • kotoba 言葉

    Full-stack AI language learning platform. Architected the backend APIs in FastAPI, deployed ML inference pipelines, built the React Native iOS app, and Next.js marketing site. Download on iOS

    • FastAPI
    • React Native
    • Next.js
    • Firebase
    • LLM Inference

  • nagare 流れ

    Hyper-lean, single-binary DAG orchestrator and workflow engine. A lightweight alternative to Airflow with zero external dependencies, YAML-defined pipelines, and a built-in web UI.

    • Go
    • TypeScript
    • Next.js
    • SQLite
    • Docker

  • ratchet

    A tool for giving AI coding agents a very particular kind of job: improve a measurable result, one iteration at a time. You hand that file to any AI coding agent and it runs an autonomous loop.

    • Rust
    • Coding Agents
    • AI

  • fastapi+docker boilerplate

    Cookiecutter template for FastAPI with Docker. Includes dev/prod/test configurations, Makefile shortcuts, environment-based settings, and uvicorn auto-reload for streamlined development and deployment.

    • FastAPI
    • Docker
    • Docker Compose
    • Cookiecutter
    • Uvicorn

    • Also worth a look

    • dependia - Python dependency management tool with visual tracking dashboard
      Python Docker Next.js
    • my japanese level - Japanese text analysis tool with custom kanji segmentation
      TypeScript Next.js
    • bardo ai summarizer - Rust API for content extraction and GPT-3 summarization
      Rust GPT-3 Fly.io
    • python way - Curated collection of Python learning resources with 100+ links
      Python Open Source
    GitHub Contribution Graph

    Music

    Beyond code, I enjoy songwriting as a creative outlet. Here are some tracks I've been working on.

    Languages

    I love learning languages and will know the most random things in the most random languages at different levels.

    Fluent
    Portuguese English
    Conversational
    German Spanish
    Basic
    French Italian Dutch Japanese Norwegian