Simera Professional Key (SPK)

Daniel R

Brasil

AI Engineer

$ 11,700/month

10+ yrs exp

AI Engineer with 25 years in tech, bridging large-scale infrastructure and modern machine learning. I’ve built Retrieval-Augmented Generation (RAG) systems handling tens of millions of documents, fine-tuned LLMs for production, and optimized inference at the GPU kernel level with Triton. Throughout my career, I’ve worked across cloud infrastructure, backend development, and developer tooling, now focusing on designing and deploying agentic workflows and modular pipelines that combine LLMs, vect…

Skills

  • Ansible
  • Bash
  • Datadog
  • Docker
  • Grafana
  • Java
  • Kubernetes
  • Linux
  • MySQL
  • Perl
  • PHP
  • Prometheus
  • Python
  • Ruby On Rails
  • Scala
  • Terraform
  • AirFlow
  • Golang
  • Kubeflow
  • Phyton
  • Reliability Engineering
  • Scikit-learn
  • Software Engineer
  • Tensorflow
  • Torch
  • Python/R
  • Python3
  • FastAPI
  • Paython
  • Java.
  • Golnag
  • RAG
  • Langchain
  • OpenAI
  • MSQL
  • AI Engineer

Daniel R

Brasil

AI Engineer

$ 11,700 /month

10+ yrs exp

AI Engineer with 25 years in tech, bridging large-scale infrastructure and modern machine learning. I’ve built Retrieval-Augmented Generation (RAG) systems handling tens of millions of documents, fine-tuned LLMs for production, and optimized inference at the GPU kernel level with Triton. Throughout my career, I’ve worked across cloud infrastructure, backend development, and developer tooling, now focusing on designing and deploying agentic workflows and modular pipelines that combine LLMs, vect…

Skills

  • Ansible
  • Bash
  • Datadog
  • Docker
  • Grafana
  • Java
  • Kubernetes
  • Linux
  • MySQL
  • Perl
  • PHP
  • Prometheus
  • Python
  • Ruby On Rails
  • Scala
  • Terraform
  • AirFlow
  • Golang
  • Kubeflow
  • Phyton
  • Reliability Engineering
  • Scikit-learn
  • Software Engineer
  • Tensorflow
  • Torch
  • Python/R
  • Python3
  • FastAPI
  • Paython
  • Java.
  • Golnag
  • RAG
  • Langchain
  • OpenAI
  • MSQL
  • AI Engineer

AI Engineer

Stealth AI Startup
July 2025 - present

Work on large-scale Retrieval-Augmented Generation (RAG) and agentic systems, designing modular workflows and optimizing inference performance across LLM-based applications. Design and deploy agentic workflows with LangChain and LlamaIndex, and implement hybrid search pipelines using Qdrant. Optimize LLM training and inference with custom CUDA and Triton kernels, reducing latency and compute costs. Build backend APIs with Python and FastAPI to serve embeddings, RAG pipelines, and agent execution, integrating custom PyTorch extensions for high-performance GPU workloads.

Senior Software Engineer/AI

Doximity
July 2024 - July 2025

Developed a Retrieval Augmented Generation (RAG) platform combining large language models (LLMs) with semantic search. Built an API using FastAPI with endpoints for embedding generation, data ingestion, and queries to a Qdrant vector database. Implemented hybrid search using dense, sparse, and late interaction embeddings for re-ranking, enabling efficient retrieval over a dataset of 70+ million documents.

ML Engineer/AI

Qdrant
February 2024 - July 2024

Created technical content such as tutorials, videos, and documentation about semantic search, vector search, and retrieval augmented generation (RAG) using LangChain, LlamaIndex, Qdrant, OpenAI, and various LLMs. Developed demos and sample projects leading to a YouTube channel growth of almost 400%. Served as internal consultant solving integration issues with Qdrant for large-scale retrieval systems in production environments.

Platform Engineer/ML

DNSFilter
June 2022 - December 2023

Specialized in cloud infrastructure using Terraform, Ansible, Docker, and Kubernetes (EKS) to create robust and scalable systems. Collaborated on migrating Ruby on Rails applications from bare-metal infrastructure to the cloud. Focused on application observability with Loki, Grafana, Datadog, and eBPF. Collaborated with data science team building machine learning pipelines using PyTorch.

Data Scientist/ML

Henku
April 2021 - June 2022

Refined data quality, automated machine learning pipelines, and optimized model development lifecycle. Built and deployed complex ML and Deep Learning models using Python, Scikit-Learn, and TensorFlow for predictive analysis. Developed a computer vision model identifying nutritional value of food using a CNN built with PyTorch. Built reliable ML workflows in production using Airflow, Kubeflow, and Weights & Biases.

Senior Site Reliability Engineer

Elastic
September 2018 - April 2021

Managed on-call incident response ensuring correct functioning of large Elasticsearch clusters and deployment of new regions for Elastic Cloud, ensuring high availability in AWS, Azure, and GCP multi-regional and multi-cloud environments. Developed CLI tooling in Golang for Kubernetes cluster maintenance. Used Ansible, Terraform, Python, and Scala as an SRE.

DevOps Engineer

Various
February 2015 - February 2018

Worked with AWS, GCP, Docker, Kubernetes, Ansible, Terraform, Prometheus, and Grafana.

Software Developer

Various
February 2007 - February 2015

Developed software using PHP, Java, Ruby on Rails, MySQL, Postgres, LXC, and Docker.

Sysadmin

Various
February 2000 - February 2007

Managed Linux systems, iptables, proxies, networks, Bash, and Perl scripting.

Smart Scores

Communication
70
Role Fit
95
Adaptability
70
Problem-solving
60

Smart Skills

beta