Fullstack Developer (AI Builder)

Who we are?

Founded in 2018 in Florianópolis (SC), Seazone is a proptech that simplifies and transforms investment in vacation rental properties, offering a worry-free experience for owners and investors. To achieve this, we have developed unique technology that identifies opportunities and enables complete, intelligent, and transparent management focused on maximizing profitability for our clients, while connecting people to new destinations.

What do we deliver?

🔹Complete property management: furnishing setup, professional photography, inspections, pricing, listing creation, account management, revenue tracking with the owner, and guest support.

🔹Unique experience: A quality standard that ensures a comfortable stay for the guest, secure management for the property owner, and financial returns for the investor.

Who are our users?

🔹Investor: Those who purchase units in the developments we launch;

🔹Owner: Those who entrust their property to us for management;

🔹Guest: Those who experience the destination they chose among the properties we manage;

🔹Franchisee: Those who acquire the right to host our properties in a specific region, becoming the local service provider;

🔹Partner: Real estate market professionals who generate leads for investors, owners, and/or land.

How we stand out:

🔹Over 2,500 properties under our management;

🔹Over 40 developments structured and launched by us;

🔹Operations in 15 Brazilian states;

🔹The largest national partner company of Airbnb;

🔹Recognized by Forbes and LinkedIn as one of the Top 20 Startups in 2023;

🔹Recognized by the GRI Awards as the second largest Proptech of the Year in 2024.

About our culture:

Our mission:

To unite all elements of the hospitality ecosystem, enhancing the connection between investors, properties, and guests.

Our vision:

To be the reference in maximizing property profitability, offering clients a hassle-free experience.

Our values:

• AI First - We place artificial intelligence at the forefront of every challenge. We use AI to simplify processes, gain efficiency, and expand our capacity to solve problems.
• Blood in the eye (Relentless Drive) - We value unwavering determination and a spirit of conquest. We are fearless people who face challenges with a desire to overcome them. Driven by unbreakable willpower, we go beyond our limits, always seeking to achieve objectives with passion and perseverance.
• Prioritize and simplify - We seek simple solutions for problems and focus on the main issues to be resolved. Our communication is clear and direct, getting straight to the point in all situations.
• Focus on facts and data - We are driven by data and grounded in facts, with an analytical mindset that guides our decisions. We value the ability to develop clear and efficient processes based on a well-structured workflow.
• Proactivity - We have a forward-looking vision and act with agility to identify and isolate problems, anticipating needs before they become challenges. Our proactive approach leads us to implement necessary changes without needing a push.

What do we look for in someone joining our team?

We have a horizontal culture; we believe in autonomy, the desire for growth, adaptability, and innovation, just as we base our decision-making on our values. In this sense, we expect anyone joining our team to have the freedom to bring ideas, suggestions, and knowledge. We also expect ethics, honesty, responsibility, empathy, and a strong desire to learn from you. In return, we expect the company to also provide you with learning and skills aimed at your development as a person and professional.

If you identify with this description, come join the Seazone team!

What is it like to be part of the Seazone team?

Being part of this team means you will help compose the team of the largest national partner company of Airbnb and one of LinkedIn's Top 20 Startups, contributing to our purpose of bringing innovation and technology to the vacation rental market with the goal of maximizing profitability for client owners and investors, in addition to guaranteeing an excellent experience for the guest who chooses Seazone properties as their home away from home 🚀

What does our Tech team do?

The Seazone Tech team is one of the engines of our AI First strategy. We build agents and intelligent solutions that automate critical business processes, boost the productivity of those who work here, and open new product possibilities. More than just writing code, the team defines how AI connects to operations, the product, and decision-making, transforming the Seazone way of working and serving our clients.

💼 What you will do:

• Technically lead the construction of AI agents and solutions end-to-end, from architecture and model selection to deployment, observability, and iteration in production;

• Establish AI engineering standards within the company, including evaluation strategies, guardrails, cost and latency control, prompt versioning, and quality monitoring;
• Conduct Product Discovery for AI solutions, applying frameworks like Job to be Done to define hypotheses, outcome metrics, and validatable MVPs before scaling engineering;
• Act as a technical peer to the AI Orchestrator and business area leaders, understanding the process in depth before automating it and influencing trade-offs between adapting operations and adapting technology;
• Make build vs. buy decisions regarding frameworks, models, and platforms (Claude, OpenAI, agent frameworks, no-code) based on cost, risk, time-to-market, and team capacity.

🔍 What we expect from you:

• 5+ years of experience in software development, with at least 2 years building and operating solutions with LLMs and agents in production (not just POCs);

• Solid mastery of Python and/or TypeScript/Node.js, with fluency in modern AI patterns: RAG, function/tool calling, multi-step agent orchestration, structured outputs, and streaming;
• Proven track record of agents in production handling real failures — having resolved hallucinations, quality drift, uncontrolled costs, high latency, or agent loops in environments with users;
• Product maturity: autonomous ability to conduct Discovery, write hypotheses, define MVPs, measure outcomes, and prioritize based on business impact — not just executing backlog;
• Strong communication and influence with business areas and leadership, translating business problems into technical architecture and vice versa;
  
  
• Advanced AI First mindset: means using artificial intelligence as the first resource to solve problems, optimize tasks, and gain productivity — before resorting to manual processes. Here at Seazone, AI is not a differentiator; it is part of the way we work.

🤩 You stand out if you have:

• Previous experience technically leading an AI front or squad, defining architecture and standards adopted by other engineers;

  Deep knowledge of at least one agent framework (Claude Agent SDK, LangGraph, CrewAI) and the ability to justify when to use — and when not to use — each one;
• Experience implementing LLM evaluation strategies (automatic evals, LLM-as-judge, golden datasets) and agent observability (Langfuse, LangSmith, Helicone, or equivalent);
• Background in digital product, growth, sales, or operations with automation — clear understanding of how AI impacts the business funnel or process, not just the code;
• Experience in the hospitality, tourism, or marketplace sectors;
• Relevant public contributions: open source, talks, technical articles, or public case studies on AI agents in production;

Benefits

🍽️ Food allowance - IFOOD in the amount of R$ 462.00;

🩺 Health and Dental Plan after 6 months as a Contractor (PJ) at Seazone;

🚀 Semi-annual reviews with a perspective on growth;

🗣️ Feedback Culture;

🎂 Birthday day-off;

⏸️Paid maternity/paternity leave;

💰 Referral bonus;

✈️ Discounts on stays through our booking site;

🏝️Accommodation in Florianópolis (SC) for the Seazone anniversary celebration event;

🖥️Office available for coworking in Florianópolis (SC).

Partnerships

🏋️‍♀️ Partnership with Gympass;

📚 Partnership with Language Schools;

📓Partnership with ACATE - discounts on university tuition fees, among other benefits;

🧠 Partnership with Conexa Saúde and Psicologia Viva - 24h Telemedicine;

🐾Partnership with Guapeco - Pet Health Plan.

About the hiring process

💼Contract under the PJ (Contractor) model;

👨‍💻Remote work;

🌴Paid leave of 15 days every 6 months of contract.