Angel Larangeira

Product Engineer

Tallinn, Estonia

I'm a product-oriented engineer who cares about building things that actually matter to users. 5+ years shipping features across fintech, edtech, healthtech, and iGaming.

My approach: own features end-to-end, collaborate closely with product and design, and make thoughtful technical decisions that balance speed with quality. I've built identity systems handling millions of users, payment flows processing real money, and APIs connecting game providers at scale.

I got my start doing QA rotations, which shaped how I think about software. Testing isn't an afterthought for me - it's how I build confidence.

My Work

Building scalable systems across different industries, always focused on real user impact.

2024

Yolo Group (Hub88)

Software Engineer - Tallinn

Building APIs that connect game providers and operators in a high-volume iGaming platform. Elixir, GraphQL, PostgreSQL, ClickHouse for analytics at scale.

2022

Stone

Backend Developer - Sao Paulo

Core identity and onboarding systems for financial products. Auth flows, KYC validation, platform integrations. Improved observability and production reliability.

2022

Payfy

Backend Developer - Sao Paulo

Corporate expense management fintech. Payment flows, reconciliation, antifraud, and compliance. Real financial transactions where correctness was critical.

2020

Camino Education

Software Engineer - Sao Paulo

Cloe digital learning platform used by students and teachers daily. Fullstack: Elixir/Phoenix backend, Flutter mobile. QA rotations shaped my user-first mindset.

2019

Veksti

Fullstack Engineer - Sao Paulo

Healthtech startup with telemedicine products. Built web apps with React and Node. Fast-paced environment that taught me to ship with limited resources.

Projects

Building products that solve real problems.

Building filebread.com

FileBread

Toss your files in. Let AI sort it out.

For You

Ever spent 20 minutes searching for a file you know you saved somewhere? Clicking through folders, trying different keywords, opening five apps?

That's because your files are just... sitting there. They can't help you. You have to remember where you put things and exactly what you named them.

FileBread changes that. Upload your files once - PDFs, docs, notes, whatever - and just ask questions in plain language.

"What did I save about React hooks?" finds the file even if it's called notes_final_v2.pdf.

"Summarize my research papers on climate change" gives you a synthesized answer with sources.

It's your second brain. Upload lecture slides before an exam, work documents for a project, research papers for your thesis - then just ask what you need to know.

Stop managing files. Start using knowledge.

For Companies

Building "file upload + AI search" from scratch is a nightmare. You need storage, text extraction, vector databases, RAG pipelines, rate limiting...

That's 3-6 months of dev time. Or you just use FileBread.

10 lines of code. Your users upload files, ask questions, get answers. We handle storage, embeddings, search, and AI - you focus on your product.

Use cases:
EdTech - Students ask questions about course materials
Legal - Search case files semantically
Support - AI-powered knowledge bases
Any SaaS - Add smart file upload as a feature

Ship in days, not months. Pay as you grow.

Try FileBread

Also exploring

Product Design

How technical decisions shape user experience. The intersection of engineering and design thinking.

Interactive Systems

Game design concepts applied to software. Making interfaces that feel alive.

Music

Side project: Dogu