Lead Full Stack Developer AI

Virvon Ecommerce; United States; A distancia; USD 180.000 - 240.000; Jornada completa

Descripción de la vacante

Virvon Ecommerce is seeking a hands-on technical leader to own architecture, design, development, and production deployment of scalable, AI-powered applications across backend, web, mobile, and cloud. You will lead end-to-end delivery, foster strong engineering judgment, mentor teammates, and drive performance, security, and cost efficiency while collaborating with product and data teams.

This role demands independent execution and a track record of delivering complex systems in fast‑moving

Formación

• Extensive hands-on software architecture and production-grade development.
• Experience with backend and frontend tech stacks listed.
• Experience leading end-to-end product development.

Responsabilidades

• Own end-to-end architecture, system design, development, and deployment of scalable AI-powered apps.
• Architect and develop backend services using Node.js, NestJS, TypeScript, Express.js, and Go.
• Design scalable web apps with React.js and Next.js; build mobile apps with Flutter and Dart.
• Design distributed systems, microservices and real-time apps for large data and high traffic.
• Develop secure payment integrations, APIs, and cloud-native infra (AWS, Docker, CI/CD).

Conocimientos

Technical leadership

Independent execution

Architectural design

System debugging

Communication

Mentoring

Herramientas

Node.js

NestJS

TypeScript

Express.js

Go

React.js

Next.js

Flutter

Dart

PostgreSQL

MySQL

MongoDB

Redis

PostGIS

WebSockets

REST APIs

OpenAI

Claude

Gemini

Python

Go

AWS

Docker

CI/CD

Kubernetes

Kafka

RabbitMQ

LangChain

LlamaIndex

Git

Descripción del empleo

Role & Responsibilities

• Own end-to-end architecture, system design, development, and production deployment of scalable, AI-powered applications.
• Architect and develop high-performance backend services using Node.js, NestJS, TypeScript, Express.js, and Go.
• Design scalable web applications using React.js and Next.js, and cross-platform mobile applications using Flutter and Dart.
• Design distributed systems, microservices, event-driven architectures, and real-time applications capable of handling massive data volumes and high concurrent traffic.
• Design and optimize PostgreSQL/MySQL databases, MongoDB, Redis caching, database indexing, transactions, and query performance.
• Build real-time ride-booking, driver-allocation, location-tracking, and proximity-based matching systems using geospatial technologies such as PostGIS.
• Design and implement REST APIs, WebSockets, secure authentication, authorization, RBAC, and third-party integrations.
• Build and integrate Generative AI applications, LLM-powered chatbots, AI agents, RAG pipelines, embeddings, vector databases, tool calling, and intelligent automation workflows.
• Develop AI and backend services using Python and integrate LLM platforms such as OpenAI, Claude, and Gemini.
• Architect secure payment integrations, transaction workflows, webhook processing, idempotency, and payment reconciliation.
• Design and implement cloud-native infrastructure using AWS, Docker, CI/CD pipelines, and production monitoring tools.
• Ensure application security, scalability, reliability, performance, maintainability, and cost efficiency.
• Lead technical decision-making, code reviews, debugging, performance optimization, documentation, and mentoring of developers.
• Independently own critical engineering deliverables and drive products from concept and architecture through development, testing, deployment, and production support.

Preferred Candidate Profile

• 710+ years of software development experience, with substantial hands‑on experience in technical architecture and production‑grade application development.
• Expert‑level proficiency in Node.js, NestJS, TypeScript, REST APIs, backend architecture, and microservices.
• Strong experience with React.js, Next.js, and modern frontend architecture.
• Hands‑on experience with Flutter and Dart for Android and iOS application development.
• Proven experience designing scalable systems, handling large data volumes, concurrent workloads, and performance‑critical applications.
• Strong experience with PostgreSQL, database design, indexing, query optimization, transactions, Redis, and geospatial systems.
• Practical experience building and deploying LLM‑powered applications, AI agents, RAG systems, embeddings, vector search, and AI workflow automation.
• Proficiency in Python for AI integrations and backend services; Go language experience is highly desirable.
• Strong understanding of authentication, authorization, application security, payment integrations, and secure API design.
• Hands‑on experience with AWS, Docker, CI/CD, Git, production deployments, logging, and monitoring.
• Familiarity with Kafka/RabbitMQ, Kubernetes, LangChain/LlamaIndex, and event‑driven architectures is an advantage.
• Exceptional system‑design, analytical, debugging, and problem‑solving skills.
• Strong ownership, independent execution, technical leadership, communication, and mentoring abilities.
• Experience in startups or building products from scratch is highly desirable.

What We Expect

We are looking for a highly hands‑on technical leader who can independently architect, design, develop, optimize, and deploy complex production systems. The ideal candidate must demonstrate genuine technical depth, strong engineering judgment, and the ability to lead end‑to‑end product development across backend, web, mobile, cloud, and AI technologies.