Senior Full Stack Developer

Job Type: Full-time, Contract

About Us

AgilityIO is a software development firm that designs and builds custom applications for startups and Fortune 500 companies. We are a global team of over 400 developers, QA engineers, project managers, and UX/UI designers with offices in New York City and Vietnam.

This is a full-time contractor role based in Latin America.

We are seeking a versatile Senior Full Stack Developer to build intuitive front-end experiences and scalable serverless backend systems. This role is ideal for someone who enjoys working across the stack, with a strong focus on API integrations and modern web technologies.

Job Responsibilities

• Architect, develop, and maintain full-stack applications using modern frameworks (e.g., TypeScript/React, Node.js, Python)
• Design and implement scalable backend services with AWS (Lambda, API Gateway, DynamoDB, S3, ECS, etc.)
• Collaborate with cross-functional teams to define, design, and deliver new features
• Ensure applications meet high standards of performance, responsiveness, and security
• Lead code reviews, mentor junior developers, and promote best practices
• Build and maintain CI/CD pipelines; monitor systems for reliability and performance
• Stay current with emerging technologies and propose innovative solutions

Qualifications & Experience

• 5+ years of full-stack development experience
• Strong proficiency in JavaScript/TypeScript and at least one backend language (Node.js, Python, or C#)
• Deep knowledge of AWS services and cloud architecture
• Experience with containerization (Docker, Kubernetes) and serverless architectures
• Proficiency with modern frontend frameworks (React preferred; Angular or Vue a plus)
• Solid understanding of RESTful APIs, GraphQL, and microservices
• Skilled in Git, testing frameworks, and agile methodologies
• Excellent problem-solving and communication skills
• Ability to collaborate effectively with internal and external teams in English

Preferred Qualifications

• AWS certifications (e.g., Solutions Architect, Developer Associate)
• Experience with Infrastructure as Code (CDK, Terraform, CloudFormation)
• Familiarity with DevOps practices and observability tools (e.g., AWS CloudWatch, Datadog, Prometheus)

What We Offer

• Competitive salary and performance-based bonuses
• Flexible remote work environment
• Professional growth opportunities and mentorship
• Engaging and collaborative team culture with cutting-edge projects

• Ready to Make an Impact?
• If you’re passionate about both frontend and backend development and thrive in a dynamic, product-driven environment, we’d love to hear from you.