Job Description

🚀 Senior Full Stack Software Engineer | on-site

(Córdoba, Argentina | Mérida Yucatán, México)

📍 Location: On-Site | Córdoba, Argentina | Mérida, Yucatán, México

💼 Engagement: Full-Time | Contractor Agreement

🕐 Schedule: 8:30 AM – 5:30 PM EST

🎯 Experience: 10+ years

About the Role

We are looking for a Senior Full Stack Software Engineer to design and build modern, scalable web applications across the entire technology stack.

This is a hands-on engineering role for someone with strong expertise in JavaScript/TypeScript, React, Node.js, and cloud technologies, combined with the ability to contribute to architecture, technical decisions, and engineering best practices.

You will work closely with Product, UX, QA, and Engineering teams to deliver reliable and high-performing solutions across SaaS, mobile, and on-premise environments.

🔑 What You'll Do

• Design, develop, and optimize complex full-stack web applications.
• Build modern SPAs using React, Angular, or Vue.js.
• Develop scalable Node.js / Express.js services and RESTful APIs.
• Contribute to system architecture and technical design decisions.
• Build and maintain microservices and cloud-native applications.
• Improve application performance, reliability, observability, and scalability.
• Collaborate with cross-functional and distributed engineering teams.
• Lead code reviews and promote engineering best practices.
• Mentor engineers and provide technical guidance.
• Contribute to CI/CD, testing, and continuous improvement initiatives.
• Evaluate technologies and contribute to technical roadmaps.
• Apply AI technologies to modern software development and product solutions.

🛠️ Must-Have Technical Skills

• 10+ years of professional software engineering experience.
• 5+ years with JavaScript & TypeScript.
• Strong hands-on expertise with React(preferred), Angular, or Vue.js.
• Advanced HTML5, CSS3, SCSS, and modern frontend architecture.
• Strong Node.js & Express.js experience.
• Experience designing and consuming RESTful APIs & microservices.
• Hands-on experience with AWS or Azure.
• Experience with Docker & containerized applications.
• Strong knowledge of NoSQL databases.
• Experience with CI/CD, Git, Agile, and TDD.
• Experience with application performance optimization, observability, and troubleshooting.
• Strong understanding of software architecture and system design.
• Demonstrated technical leadership and developer mentorship.
• Hands-on AI experience is required.

⭐ Nice to Have

• Experience building SaaS platforms.
• Experience delivering mobile and on-premise solutions.
• Experience working with distributed engineering teams.
• Experience with technical roadmap planning and technology evaluation.

💡 Key Technologies

React | TypeScript | JavaScript | Node.js | Express.js | AWS | Azure | REST APIs | Microservices | Docker | NoSQL | CI/CD | Git | AI

Why This Opportunity?

Join a team where you can make a direct impact on modern software architecture, cloud-native development, AI adoption, and engineering excellence while working on complex, scalable technology solutions.