Julio Goldbach Braitt

Software Engineer

Triple Whale

Sep 2025 - Current (11 months)

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Senior Software Engineeer

Hakkoo Technology Ltd.

Aug 2024 - Sep 2025 (1 year 2 months)

• Designed and implemented Retrieval-Augmented Generation (RAG) in Next.js for custom chatbots with dynamic document citation and display; integrated multilingual Hugging Face embeddings and PostgreSQL pgvector for vector storage, similarity search and ranking, boosting contextual accuracy. Deployed robust, secure, and scalable infrastructure on Google Cloud Platform (Vertex AI, Compute Engine, load balancers, Cloud Armor, firewall rules). • Deployed and optimized open-source Large Language Models (LLMs), utilizing Ollama and vLLM, and containerized environments with Docker and scalable cloud infrastructure on Google Compute Engine. • Expertise in leveraging OpenAI API and platform for developing AI agents, including agent orchestration, fi

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Senior Software Engineer

Sep 2021 - Aug 2024 (3 years)

• Led development of high-stakes, complex functionalities within a large-scale Elixir Phoenix umbrella application, including a comprehensive accounting system generating weekly and monthly compliance reports for the Brazilian Central Bank; leveraged advanced Ecto querying with window functions and strategic preloading, drastically reducing report generation times by performing calculations directly at the database layer. Worked in virtually every functionality across the codebase. • Designed and maintained an internal library for core financial logic, taking ownership of both development and product management responsibilities while coordinating cross-functional teams; developed tailored Elixir metaprogramming utilities to ensure a clean,

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Software developer (Acquired by Banco BS2)

Jul 2019 - Sep 2021 (2 years 3 months)

• Handpicked by the CTO to join the core Israeli development team, contributing remotely from Brazil. • Engineered key features for the company’s Elixir Phoenix application, taking end-to-end ownership of technical support and system reliability, and developed numerous frontend features using Angular to deliver seamless user experiences across the platform. • Served as the primary resource for audit data and internal accounting reconciliation, working closely with Grant Thornton and Ernst & Young (E&Y); leveraged advanced Elixir IO processing with Stream to efficiently load, compare, and audit large volumes of financial data, dramatically improving accuracy and throughput in reconciliation workflows. • Served as the principal suppor

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Intern (doing mainly Data Science)

Oct 2018 - Jul 2019 (10 months)

Worked in several different areas within the company. Provided tailor-made technological solutions for different teams, including Sales, Business Development, Risk, Operations, CS and others. Some cool apps I single-handedly developed were: • Reverse Engineering Revenue Calculator (for Sales and Risk team) • Real-time operations dashboard (for Operations team) • ERP Partners Report Generator (for Business Development team) • Real-time Credit Seasonality by Customer App (for Sales team) • LTV/CAC Calculator (for Strategy team and C-Level executives) • CNAB parser and verifier with BigQuery DB (for Tech team) • Daily financial audit script (for Finance team) yes - there were a lot of apps and a lot of fun :) Technologies used: R (a lot of dpl

Julio Goldbach Braitt

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