Sr Fullstack Developer

Encora Inc.; Ciudad de México; Presencial; MXN 1.261.261 - 1.621.621; Jornada completa

Descripción de la vacante

A global software solutions company is seeking a Senior Fullstack AI Engineer to join their team in Mexico City. The ideal candidate will have over 6 years of experience, invaluable skills in JavaScript, TypeScript, Node.js, and React. Their role will comprise designing and developing LLM-powered applications and integrating advanced APIs. This high-impact position offers collaboration with diverse teams and excellent mentoring opportunities, contributing to innovative AI-driven solutions.

Formación

• 6+ years of professional experience as a Full‑Stack Developer.
• Strong proficiency in JavaScript and TypeScript.
• Expert-level experience with Node.js and React.js.
• Hands-on experience with LLM-powered applications.

Responsabilidades

• Design, build, and maintain high-performance full-stack applications using Node.js, React, and TypeScript.
• Architect and implement LLM-powered applications from prototyping to production deployment.
• Develop scalable RESTful and GraphQL APIs integrating third-party services.
• Mentor junior developers and participate in code reviews.

Conocimientos

JavaScript

TypeScript

Node.js

React

API development

RAG architectures

Cloud AI platforms

Vector databases

Herramientas

LangChain

Docker

Kubernetes

AWS

Descripción del empleo

Sr Fullstack AI Engineer

Join to apply for the Sr Fullstack AI Engineer role at Encora Inc.

Job Summary

We are seeking a highly skilled Senior Full-Stack Developer with deep expertise in JavaScript, TypeScript, Node.js, React, and modern API development. This role also requires strong hands‑on experience building AI‑driven and LLM‑powered applications, including RAG workflows, agentic systems, and vector search integrations. This is a high‑impact position where you will design, develop, and deploy advanced full‑stack features and intelligent systems that power next‑generation user experiences.

Responsibilities and Duties

• Design, build, and maintain high‑performance full‑stack applications using Node.js, React, and TypeScript.
• Architect and implement LLM‑powered and agentic applications, from prototyping to production deployment.
• Develop scalable RESTful and GraphQL APIs, integrating third‑party services and internal data sources.
• Implement RAG pipelines, including embedding generation, context retrieval, prompt engineering, and tool execution.
• Integrate vector databases (e.g., pgvector, Pinecone, Weaviate, Qdrant) to support semantic search and knowledge retrieval.
• Work with cloud‑based AI platforms such as AWS Bedrock or Azure OpenAI for model orchestration and inference.
• Collaborate with product, design, and data teams to ship well‑architected solutions at speed.
• Ensure software quality through testing, performance tuning, and best‑in‑class development practices.
• Mentor junior developers and participate in code reviews to maintain technical excellence.

Qualifications and Skills

• 6+ years of professional experience as a Full‑Stack Developer.
• Strong proficiency in JavaScript and TypeScript.
• Expert‑level experience with Node.js (backend) and React.js (frontend).
• Solid understanding of modern API development standards.
• Hands‑on experience designing and shipping LLM‑powered or agentic applications in production.
• Proficiency with at least one agent/orchestration framework, such as:
  • LangChain
  • LlamaIndex
  • Semantic Kernel
  • AutoGen
  • OpenAI Assistants
• Deep practical experience implementing RAG architectures, including:
  • Embeddings
  • Prompt design
  • Context management
  • Tool calling
• Experience working with vector databases (pgvector, Pinecone, Weaviate, Qdrant).
• Experience integrating with cloud AI platforms such as AWS Bedrock or Azure OpenAI.

Highly Desirable

• Experience with Strands (AI/ML or orchestration context).
• Experience with Pydantic (Python data validation and modeling).

Nice to Have

• Experience with containerization and cloud infrastructure (Docker, Kubernetes, AWS, GCP, Azure).
• Familiarity with CI/CD pipelines and modern DevOps practices.
• Background in distributed systems, data engineering, or machine learning concepts.

About Encora

Encora is a global company that offers Software and Digital Engineering solutions. Our practices include Cloud Services, Product Engineering & Application Modernization, Data & Analytics, Digital Experience & Design Services, DevSecOps, Cybersecurity, Quality Engineering, AI & LLM Engineering, among others.

EEO Statement

At Encora, we hire professionals based solely on their skills and do not discriminate based on age, disability, religion, gender, sexual orientation, socioeconomic status, or nationality.