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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 environments where requirements may initially be unclear or incomplete. This role requires a combination of strong software engineering fundamentals, product thinking, and hands-on experience with building systems powered by LLMs or other AI technologies. The ideal candidate is comfortable operating in a small company environment and working directly with stakeholders to transform ambiguous business needs into scalable technical solutions. This is a highly involved role requiring autonomy, pragmatic decision-making, and the ability to structure messy problem spaces. *Job available only for Latin American residents*

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 (classification, extraction, reasoning, etc.)
    • RAG or embedding-based solutions
  • Lead technical direction and make pragmatic technology decisions
  • Balance project 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
  • Guide product roadmap and prioritization
  • Break down complex initiatives, coordinate team efforts, and ensure timely execution of key milestones
  • Lead by example through hands-on development, code reviews, and mentorship
  • Foster 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

  • Experience as a tech lead or senior engineer
  • Ability to design scalable systems from scratch across modern web architectures (frontend and backend)
  • Expertise in API design, database modeling, software architecture patterns, and scalability fundamentals
  • Hands-on experience integrating LLM APIs into production systems
  • Strong understanding of
    • Prompting strategies
    • Structured AI workflows
    • RAG
    • Embeddings
    • Semantic search
    • Tool/function calling
  • Ability to evaluate and optimize trade-offs between model performance, cost, and latency
  • Experience ensuring reliability through guardrails and structured output strategies
  • Product and problem-solving mindset, with the ability to
    • Identify gaps in data and logic
    • Approach ambiguous problems
    • Make decisions with incomplete information
  • Excellent communication skills with the ability to
    • Simplify complex technical concepts
    • Effectively align with non-technical stakeholders
    • Negotiate scope and priorities

Nice to have

  • Experience with AI-assisted development tools (Cursor, Claude Code, Copilot, etc.) 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, allowing for flexibility and a great work-life balance
  • Flexible work environment that supports personal and professional needs
  • Regular feedback focused on personal development and career growth
  • Competitive salary, reflecting your skills and contributions
  • Opportunities for international collaboration and travel
  • Legal Person (PJ) contract

This job is available only for Latin American residents.

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Mid/Senior Fullstack Developer (LLM)

We are looking for a fullstack AI engineer to join an innovative RAG technology project from the ground up, focused on building a natural language communication system for client interactions. In this role, you will work directly with the CTO, contributing to both technical architecture and product evolution in a highly collaborative environment. You will be responsible for designing, developing, and scaling modern fullstack applications, with a strong emphasis on AI-driven solutions and LLM integrations. This role is ideal for someone who enjoys building products from scratch, has a strong ownership mindset, and is excited about applying artificial intelligence to solve real business problems. *Job available only for Brazilian residents*

Tech Lead (AI Chatbot & Agent Systems)

We are looking for a highly capable tech lead to steer 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 to improve quality, reliability, and user experience. The ideal candidate is comfortable operating in environments with evolving requirements and can transform ambiguous product needs into structured technical solutions. This is a highly hands-on role requiring autonomy and an ownership mindset. *Job available only for Latin American residents*

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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