Ivan Grana
DevSecOps | AI Engineering | Scalable and Secure APIs | Langchain | Oracle | LangGraph | CassandraDB | PostgreSQL | MongoDB | Docker | Kubernetes | Linux | Snyk | Jenkins | Gitlab | AWS | Kafka | RabbitMQ | IAM |
Salary / Daily rate
Brazil, IN 47834, USA
Freelance, open to permanent contract
Remote only
Skills
Languages
About me
Intro
I’m a results-driven Software Engineer with over 3 years of experience building scalable,secure applications and AI-powered solutions. I specialize in developing AI agents and automation systems using LangChain, LLMs (OpenAI, Cohere), and vector databases like Qdrant. Also, got experience with Machine Learning algorithms and its usage with tools like TensorFlow and Numpy. On top of that, I have extended experience in DevSecOps developing safe and scalable applications with Gitlab.My full-stack expertise spans Python, FastAPI, Go (Gin), Typescript(using Express and Nest) Vue, and React, with solid back-end experience in PostgreSQL, MongoDB, and Cassandra. I’m passionate about delivering robust, production-ready systems with CI/CD pipelines (Jenkins), container orchestration (Docker, Kubernetes), and observability tools like SonarQube and Nginx. Solid experience with Kafka and RabbitMQ. I have experience working on AWS cloud environments using DynamoDB, EC2 instances and S3 Buckets. Also,configuring IAM policies.Beyond code, I’m passionate about clear, maintainable, and collaborative technical documentation. I regularly create structured READMEs, API specs (OpenAPI/Swagger), architecture diagrams, and onboarding guides that enhance team productivity and ensure long-term maintainability.
Work experience
AI Engineer
SellerPlex
Nov 2025 - Jan 2026
3 months
Software Engineer
Gröwnt
Sep 2024 - Dec 2025
1 year 4 months
Brasília, Federal District, Brazil
I was responsible for the development of chatbots, RAG pipelines and agent orchestrations with LangChain and LangGraph. Implemented MCP servers and guardrails for AI agents, guaranteeing security and avoiding prompt injection vulnerabilities. Developed and maintained high performance APIs using Redis for Caching and concurrency. Integrated websocket based chatbots. Developed machine learning solutions with Tensorflow and Pytorch using supervised and non-supervised algorithms.
Software Engineer & DevOps
VoxData Technology
Mar 2024 - Mar 2025
1 year 1 month
Brasília, Federal District, Brazil
I performed the role of devOps engineer by configuring and setting CI/CD pipelines with Jenkins and also set Nginx servers and proxies.
Penetration Tester
IntigritiFreelance
Jul 2022 - Mar 2023
9 months
Performed penetration testing on private bug bounty programs.
Education
Universidade Federal do Pará
Bachelor's degree, Computer Science
Licenses & certifications
AWS Cloud Quest: Cloud Practitioner
Issued: Dec 2025
Oracle Cloud Infrastructure 2025 Certified Generative AI Professional
Issued: Oct 2025
Introduction to Cybersecurity
Issued: Oct 2025