Job description
Important Information
Location: Brazil
Job Mode: Full-time
Work Mode: Work from home
Job Summary
As a Fullstack Tech Lead focused on Artificial Intelligence, you will lead the development of innovative AI-powered systems by collaborating closely with backend and frontend engineers. This role requires hands-on coding expertise, architectural vision, and a deep understanding of modern AI frameworks. You will be responsible for designing scalable fullstack solutions using cutting-edge technologies, driving technical excellence, and shaping the engineering standards for intelligent automation.
Responsibilities and Duties
Lead the design and development of fullstack systems using Node.js, NestJS, and Langchain, ensuring robust architecture and maintainable code;
Architect backend services and APIs that integrate with LLMs and support agent workflows, using TypeScript and JSON-based configurations;
Collaborate with frontend engineers to ensure seamless integration, while maintaining backend ownership;
Experiment with emerging GenAI technologies, including RAG, embeddings, and vector databases, to enhance solution capabilities;
Guide engineering best practices through code reviews, documentation, and mentoring;
Work closely with product and design teams to translate business requirements into intelligent automation features.
Essential Skills
Advanced proficiency in Node.js, NestJS, and TypeScript, with experience in building scalable backend systems;
Hands-on experience with Langchain, including prompt engineering, agent orchestration, and tool integration;
Strong foundation in software engineering principles, including system design, API architecture, and testing;
Experience working with JSON configurations and managing structured data flows.
Highly Desirable Skills
Experience designing GenAI architectures using Langchain agents, RAG, and LLM APIs (e.g., OpenAI, Anthropic);
Familiarity with vector databases and embedding models;
Exposure to cloud platforms (AWS, GCP, Azure) and CI/CD pipelines;
Experience with remote collaboration tools and asynchronous workflows.
Optional Skills
Knowledge of Docker and containerized deployments;
Experience with CI/CD tools;
Ability to write and maintain technical documentation;
Familiarity with test automation frameworks (e.g., Jest, Mocha);
Understanding of multi-agent orchestration and tool calling;
Experience working in agile environments with cross-functional teams.
About Encora
Encora is the preferred digital engineering and modernization partner of some of the world’s leading enterprises and digital native companies. With over 9,000 experts in 47+ offices and innovation labs worldwide, Encora’s technology practices include Product Engineering & Development, Cloud Services, Quality Engineering, DevSecOps, Data & Analytics, Digital Experience, Cybersecurity, and AI & LLM Engineering.
At Encora, we hire professionals based solely on their skills and qualifications, and do not discriminate based on age, disability, religion, gender, sexual orientation, socioeconomic status, or nationality.
