Senior Full-Stack Lead for AI-Powered Apps | Remote

NineTwoThree AI Studio; España; Remote; EUR 70,000 - 110,000; Full time

Benefits offered by this job

Health Insurance

Well-being budget

Hardware provided

Paid vacation 20 days

Maternity/paternity leave

Professional development support

Job summary

NineTwoThree AI Studio is a remote-first product design, engineering, and marketing studio delivering AI-powered web and mobile apps to global brands. We seek senior engineers who lead projects, architect scalable AI solutions, and mentor teams to deliver high-quality results.

Join a fast-moving, high-talent team with strong leadership, clear processes, and opportunities for career growth across a remote, international client base.

Qualifications

• 5+ years in Full Stack Software Development (React, Node.js, JavaScript, TypeScript, SQL)
• Cloud platforms knowledge (AWS, Azure or GCP)
• Strong understanding of design patterns and best practices in software development
• Excellent communication with clients and teams to explain options and trade-offs
• Experience with microservices architecture and RESTful APIs
• English proficiency (B2-C1) and flexibility for meetings with Eastern USA

Responsibilities

• Lead projects end-to-end, from technical strategy to execution
• Architect scalable, AI-powered solutions and guide engineers
• Mentor engineers and ensure quality while moving fast
• Translate business needs into technical decisions with clear trade-offs

Skills

React

Node.js

JavaScript

TypeScript

SQL

NoSQL

Cloud platforms

Microservices

Design patterns

Leadership

English communication

Tools

RESTful APIs

OAuth

SAML

MySQL

PostgreSQL

Redis

Job description

NineTwoThree AI Studio is a remote-first product design, engineering, and marketing studio delivering AI-powered web and mobile apps to global brands. We seek senior engineers who lead projects, architect scalable AI solutions, and mentor teams to deliver high-quality results.

Join a fast-moving, high-talent team with strong leadership, clear processes, and opportunities for career growth across a remote, international client base.