About Mojo Tech

Mojo Tech is an innovative technology consulting firm that integrates strategy, design, data, and software engineering to create results-driven, AI-enabled digital products and experiences.

We partner with our clients to discover, define, design, and build tomorrow’s innovations, empowering organizations to unlock future market potential, maximize returns on innovation, and drive transformational change.

Role Overview
Mojo Tech is seeking a Ruby Engineer to join our growing engineering team in Argentina.
As a consultant at Mojo Tech, you will work across a variety of client engagements, partnering with product managers, designers, engineers, and business stakeholders to solve complex challenges and deliver impactful software solutions. Unlike traditional product companies, our engineers have the opportunity to work across multiple industries, technologies, and teams, gaining exposure to a diverse range of technical and business problems.

Demonstrated experience with AI-native software engineering practices is required for this role.

Success in this role requires strong technical skills, excellent English communication, and the ability to collaborate effectively with distributed teams and U.S.-based clients. You should be comfortable participating in technical discussions, contributing ideas, and helping clients make informed technology decisions.

Key Responsibilities

Design, build, test, and maintain modern web applications using Ruby on Rails
Collaborate with cross-functional teams including product managers, designers, and fellow engineers
Participate in technical discovery, architecture discussions, and solution design
Develop scalable APIs and backend services
Write clean, maintainable, well-tested code
Contribute to code reviews and engineering best practices
Help identify and resolve technical risks and challenges




Communicate effectively with clients and internal stakeholders

Continuously learn and contribute to the growth of the engineering team

Required Qualifications

3+ years of professional software engineering experience
Experience building and maintaining production applications using Ruby on Rails
Strong understanding of object-oriented programming principles and software design patterns
Experience with AI-enabled applications, machine learning integrations, LLMs, or RAG architectures
AI-accelerated code reviews and debugging
AI-assisted software design and implementation
Agentic development workflows (parallelized coding, autonomous task execution, orchestration)
Prompt engineering for software development and system generation
Using AI to generate documentation, architecture artifacts, and delivery assets
Building systems where humans remain accountable for quality and decisions
Rapid prototyping with structured production hardening
Experience working with relational databases and API development
Familiarity with Git and collaborative development workflows
Strong problem-solving and analytical skills
Professional working proficiency in English (written and verbal)
Ability to work effectively in a remote, distributed environment

Must be located in Buenos Aires, Argentina

Preferred Qualifications

Experience designing and implementing RESTful APIs and microservices
Experience with cloud platforms such as AWS, Azure, or Google Cloud




Familiarity with containerization technologies such as Docker and Kubernetes
Experience with Python, Java Script, React, or modern front-end frameworks
Experience working in consulting, agency, or client-service environments
Exposure to mentoring junior engineers or technical leadership responsibilities
Familiarity with mobile application development (iOS or Android)
Experience building and deploying cloud-native or 12-factor applications

Contributions to open-source projects, technical blogs, or conference presentations

What Success Looks Like

Build strong relationships with clients and teammates
Deliver high-quality, maintainable software solutions
Demonstrate technical ownership and accountability
Contribute to Mojo Tech's culture of engineering excellence

Continue expanding your technical and consulting capabilities

Employment Structure

We hire employees in Argentina through Deel, our Employer of Record (EOR) partner. Deel serves as your legal employer for payroll, benefits administration, and local compliance purposes, while your day-to-day work, manager, performance reviews, career development, and team experience will be with Mojo Tech.

This is a full-time employee position, not a contractor role.

Benefits

Competitive salary based on experience
Full-time employment through Deel
Versátil remote work environment
Professional development and training opportunities
Paid conference attendance and annual education stipend
Exposure to modern technologies and diverse client engagements
Opportunity to collaborate directly with U.S.-based clients and teams
Dedicated time for continuous learning and professional growth

Opportunity to contribute to and help shape Mojo Tech's growing presence in Latin America

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📌 Consultant, Software Engineering (Ruby on Rails) (Buenos Aires)
🏢 MojoTech
📍 Buenos Aires