Full-Stack Software Engineer Internship

Full-time

In-person

São Paulo

About the role

We’re looking for a Full-Stack Software Intern who’s excited to work with developing AI agents and our top-of-its-class inventory management platform.

Your role is vital to continue improving our systems, and the service we provide our clients. As with every other position in the company, you need to be obsessed with our customers’ success and happiness. Concretely, this means that by joining the team, your priority becomes thinking about what is the next innovation that should be developed at Kaizntree that will bring the most value to our customers (and implementing it with the team)!

This is an exciting role as you’ll join a lean commando team of incredible engineers that share the same continuous improvement goals, and aim to become the best startup team out there!

Role Overview

You’ll work directly with our Co-Founder Benoit, and the engineering team to ship features end-to-end alongside a tight-knit engineering team building agents, workflows, and core infrastructure that connect to real-world supply chains. If you want to work on AI that touches messy physical operations (raw materials, manufacturing, warehousing, retail distribution) and see your work deployed in production quickly, you’ll love this role.

Compensation

Compensation is based on a sliding scale and is unique to each engineer

  • Annual Compensation Package: R$36,000 - R$ 62,000

  • End-of-Year Bonus: Yes, this position offers a potential end-of year bonus. At Kaizntree bonuses are not a given, they are earned, and are based off your performance over the year as well as the company’s performance as a whole.

  • Return Offer: Yes, this position offers a potential return offer. We encourage you to take advantage of your time at Kaizntree to showcase as much as possible your skills, grit, determination, and desire to be part of the team long term!

Key Responsibilities

Platform Development

  • Build and maintain features for our core inventory OS (Operating System)

  • Develop inventory management, traceability, and production planning capabilities

  • Manage integrations with e-commerce platforms (Shopify, Amazon, etc…), accounting platforms (QuickBooks, Xero, etc…), and Warehouse Management Systems (WMS)

  • Implement forecasting and demand planning algorithms

  • Build AI-powered automation workflows for order processing and data entry

Customer-Focused Development

  • Participate in customer calls to understand requirements (ad hoc and optional)

  • Develop customer-specific customizations and workflows

  • Build reporting and analytics features for CPG operations

  • Implement user-friendly interfaces for non-technical supply chain professionals

  • Ensure platform reliability and stability

Technical Requirements

Our Core Technologies

  • Backend: Django (Django knowledge is not required however strong Python abilities are)

  • Frontend: React.js

  • Cloud: AWS experience

  • Database: Experience with SQL databases

  • APIs: RESTful API development and third-party integrations

Nice to Have

  • AI Agent development experience

  • E-commerce platform APIs (Shopify, Amazon)

  • ERP integrations (QuickBooks, NetSuite)

  • Supply chain or inventory management domain knowledge

  • DevOps and infrastructure management

Ideal Candidate

Experience

  • Currently in 4th or 5th year of university

  • Enrolled in a Computer Science, Mathematics, or Engineering degree

  • Previous startup or high-growth company experience is a plus

  • Experience building B2B SaaS applications

  • Experience building AI solutions

Qualities We Value

  • Loyalty: someone who is loyal to the team and the team can rely upon

  • Customer-centric mindset: willing to understand business problems, and treat each demand with the level of attention and care it deserves

  • Pressure resistant: you do not fall apart under pressure, you are resistant and enjoy a fast paced environment. If you are feeling pressure, you are able to communicate that, and understand this is only momentary

  • Uncertainty resistant: you are able to make decisions when there's no one to tell you what to do and it's not certain what you should do. This should not feel like added pressure, and shouldn’t demotivate you.

  • Strong problem-solving skills and ability to work autonomously

  • Comfortable with rapid development cycles and changing requirements

  • Good communication skills for technical discussions with non-technical stakeholders

  • Interest in AI/automation technologies

  • Fluent in Portuguese and English

  • Although we do not enforce in-person work, the ideal candidate is excited to be working in person, at the office, with an incredible team and enjoys collaborating with others.

Additional Benefits


  • Beautiful office environment in Itaim Bibi with an international team

  • Weekly company lunches in awesome restaurants

  • Great work environment

  • Direct impact on product direction and customer success

  • Opportunity to work with cutting-edge AI and automation technologies, in one of the most exciting industries where Kaizntree is at the fore-front of innovation.

  • Top of the line company equipment such as MacBook pros, Claude subscription, extra monitors.

  • Potential return office

Full-Stack Software Engineer Internship

When applying for this position please include a CV and application letter. Also put the position in the email subject.