Julio Akamine
Julio Akamine
  1. Hackathon
  2. Work
  3. Experience
  4. About
  5. Contact
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Julio Akamine

Full Stack Developer

From an operational problem to a product in production. I build systems in TypeScript: integrations, queues, and dashboards a team opens every morning.

Open to full stack roles and projects.

Bragança Paulista, SP, Brazil

Get in touchView résumé

Hackathon

1st place at the DevDay Community Hackathon São Paulo.

Together with Miguel Vaz, we built Quebra-⁠Gelo (“Icebreaker”): a mission game that turns event networking into real conversation. Two people meeting is what moves the game forward.

Play Quebra-GeloCode on GitHub
Julio and Miguel with the 1st place boards.
Project
Quebra-Gelo
Team
Julio Akamine and Miguel Vaz
Date
October 23, 2026
Event
OpenAI DevDay Exchange Community Hackathon São Paulo. A community event organized by Codex Ambassadors Brasil. Not an official OpenAI event.
Prize
US$ 1,000 in Codex credits and 12 months of ChatGPT Pro.
Stack
TypeScript, Vite, Three.js, Express
The Quebra-Gelo pet, on the game's home screen.
Julio, Miguel, and Marcelo at the 1st place photo.
At the hackathon backdrop in São Paulo.

Other hackathons

  • MakerStack Hackathon1st place

    With Contratei, which later became Talentei. A R$ 3,000 prize.

  • Shiva HackCenora project

    An application that generates long-form YouTube videos from a topic, with script, narration, soundtrack, and scenes, integrating OpenRouter, ElevenLabs, Google, and OpenAI.

Work

Two products in production.

I built Talentei end to end and have worked on Kanglu since the start of the project, connecting backend, frontend, data, and operations.

Kanglu

Tracking SaaS for e-commerce: one delivery timeline for merchant and customer, with automatic notifications at each step.

Overview
Insights
Messages
Order journey
Public tracking

01/05Overview

Problem

Order shipped, the customer asking “where is it?”, and the merchant opening each carrier's site to find where the delivery stopped.

What I built

Bling (ERP) and J&T (carrier) integrations, status normalization into a single timeline, WhatsApp and email notifications per step, Redis queues, journey rules, and shipping dashboard screens.

Outcome

Customers are notified along the journey and the merchant sees shipping in one dashboard, not in carrier tabs.

Stack
NestJS, TypeScript, PostgreSQL, Prisma, Redis, React, Vite

Talentei

B2B recruitment SaaS with AI: jobs, pipeline, psychometric tests, and candidate × job × leader × culture matching.

Landing
Decision queue
Jobs
Pipeline

01/04Landing

Problem

Recruiting in spreadsheets and inboxes: scattered resumes, gut-feeling screening, and no record of why a candidate moved forward or stopped.

What I built

From database to UI. Multi-tenant with per-company isolation in PostgreSQL; DISC, Enneagram, and 16P tests with public links and PDF; resume extraction and matching on BullMQ/Redis queues, outside the request; LGPD as a flow, with consent and a candidate portal.

Outcome

Screening becomes a process with criteria and a trail: the recruiter opens a decision queue instead of digging through email attachments.

Stack
Next.js, React, TypeScript, Bun, PostgreSQL, Drizzle, Redis, BullMQ, Better Auth

Experience

From the factory floor to software.

  1. – present

    Enviagora

    Full Stack Developer

    Talentei end to end, Kanglu on the team, an internal HR platform, and a Mercado Livre × Tiny × Bling mismatch dashboard.

  2. –

    Spadoni Projetos

    Front-End Developer

    Site redesign focused on performance and responsiveness; backend-free contact form via EmailJS.

  3. –

    Plasticogeral Embalagens

    From production line to machine setter

    Two promotions in two and a half years, maintenance of cutting and sealing machines, and shift leadership.

Technical skills

Backend and data
Node.js, NestJS, TypeScript, PostgreSQL, Redis, BullMQ, Prisma, Drizzle
Frontend
React, Next.js, JavaScript, Tailwind CSS, HTML, CSS
Applied AI
Multi-agent orchestration, OCR, Generative AI, OpenRouter, Anthropic, OpenAI, DeepSeek
Integrations and tools
TikTok Shop, Mercado Livre, Shopee, Bling, Tiny, J&T, Google Sheets API, Git
Infrastructure
VPS (deployment, management, and maintenance), Cloudflare Pages, Google Cloud Platform (GCP), AWS (basic deployment experience with ECS and S3)

Education

Full résumé

About

Who builds it.

Portrait of Julio Akamine

Before programming, I operated and set up machines in a factory. That is where my impatience with processes that only work if someone remembers to run them comes from.

Today I write the code, set up the server, and look after what runs afterwards: backend, frontend, database, queues, and the VPS where it all stays live. As AI advances, developing is no longer just code: it is thinking about the product.

Contact

Let's talk.

Open to full stack roles and projects.

Email: juliooakamine@gmail.com