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front, back & full stack

Tech Lead (AI-First Product)

We are looking for a highly capable Tech Lead to design and deliver an AI-enabled product from scratch in an environment where requirements may initially be unclear or incomplete. This role requires someone who combines strong software engineering fundamentals, product thinking, and hands-on experience building systems powered by LLMs or other AI technologies. The ideal candidate is comfortable operating in a small company environment, working directly with stakeholders to transform ambiguous business needs into scalable technical solutions. This is a highly hands-on role requiring strong autonomy, pragmatic decision-making, and the ability to structure messy problem spaces.

schedule

Full Time

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Work Contract

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What you'll do

  • Design and implement scalable architectures for AI-enabled products, including LLM integrations, structured workflows (e.g., classification, extraction, reasoning), and RAG or embedding-based solutions.
  • Define technical direction and make pragmatic technology decisions, balancing speed, quality, cost, and reliability, while ensuring maintainability and strong engineering standards.
  • Evaluate and improve AI system performance through structured feedback loops, guardrails, and fallback strategies.
  • Collaborate closely with stakeholders to translate ambiguous business needs into clear technical solutions, influencing product roadmap and prioritization.
  • Own delivery by breaking down complex initiatives, coordinating team efforts, and ensuring timely execution of key milestones.
  • Lead by example through hands-on development, code reviews, and mentorship, fostering a high-quality and scalable engineering culture.
  • Continuously improve processes, documentation, and development workflows to support team efficiency and growth.

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Requirements

  • Strong experience as a Tech Lead or Senior Engineer, with the ability to design scalable systems from scratch across modern web architectures (frontend and backend).
  • Solid expertise in API design, database modeling, software architecture patterns, and scalability fundamentals.
  • Hands-on experience integrating LLM APIs into production systems, with a strong understanding of prompting strategies, structured AI workflows, and concepts such as RAG, embeddings, semantic search, and tool/function calling.
  • Ability to evaluate and optimize trade-offs between model performance, cost, and latency, while ensuring reliability through guardrails and structured output strategies.
  • Strong product and problem-solving mindset, with the ability to identify gaps, structure ambiguous problems, and make decisions with incomplete information.
  • Excellent communication skills, able to simplify complex technical concepts and effectively align with non-technical stakeholders, including negotiating scope and priorities.

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Desirable

  • Experience with AI-assisted development tools (e.g., Cursor, Claude Code, Copilot) and proven ability to increase development velocity using AI.
  • Experience in early-stage startups or small teams, including launching v1 products and improving undefined or unstructured processes.
  • Experience working closely with founders or executive stakeholders.

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Other information

- 100% remote job.

- Flexible work environment.

- Periodic feedback focused on professional development.

- Competitive salary.

- Opportunity for international exposure.

- Opportunity for Latin American residents only.

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AI Fullstack Developer

We are looking for a Mid-Level Fullstack Developer to help build scalable, AI-powered applications. You will work across backend and frontend, contributing to modern web development, LLM integrations, and conversational interfaces, while collaborating closely with the Tech Lead and product team. This role is ideal for someone who is technically strong, adaptable, and interested in working with emerging AI technologies in a fast-paced environment. Opportunity for Latin American residents only

Tech Lead (AI Chatbot & Agent Systems)

We are looking for a highly capable Tech Lead to own the technical direction, delivery, and evolution of an AI-powered chatbot product.This role combines AI system design, technical leadership, people management, and product collaboration.The product heavily relies on LLM integrations and agent-based architectures, requiring continuous experimentation with new techniques in order to improve quality, reliability, and user experience.The ideal candidate is comfortable operating in environments with evolving requirements and is able to transform ambiguous product needs into structured technical solutions.This is a highly hands-on role requiring strong autonomy and ownership mindset.

Questions about joining our team?

remote/office work

We are a fully remote company, but we value in-person connections. We host annual trips for the entire team to collaborate and bond, and some teams organize additional meetups throughout the year to work together.

what does "flexible work" mean at KIS?

You can choose your work hours, as long as you meet your team and client's main meetings, cerimonies and deliveries. Apart from those ceremonies, you can choose how to distribute the remaining hours of your day. Just make sure you're communicating frequently and clearly.

how we keep our teams together

We have performance plans, feedback and follow-up sessions, social gatherings (online and offline) and laid-back events to keep the teams engaged and united.

how does our contract work?

Our contracts are based on Legal Person agreements (PJ in Brazil). Let us know if you need help explaining this contract model.

couldn’t find all the answers you need?

Contact our team and learn more about careers at KIS.

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