We're looking for an

AI Staff Engineer

to join our

AI & Data Team.

This is a hands-on, client-facing role for someone who enjoys building AI-powered products while helping clients and teams solve complex technical challenges.

As an AI Staff Engineer, you'll work directly with clients, participate in technical discoveries, help shape AI solutions, and actively contribute to project delivery. You'll combine software engineering, AI expertise, and technical leadership to ensure projects are successful from early conversations through production deployment.

We expect AI Staff Engineers to work as developers within client projects while also providing technical guidance, solution design, and support during pre-sales activities.

What are the main responsibilities of this role?

Technical Leadership & Delivery

Design and build AI-powered applications using LLMs, RAG, agents, and related technologies.

Work as a hands-on engineer within client projects, contributing code and technical leadership.

Help clients understand technical options, tradeoffs, and opportunities.

Participate in technical discoveries, solution design, and architecture discussions.

Support pre-sales efforts through technical validation, estimations, and solution recommendations.

Guide engineering teams through complex technical challenges.

Collaborate with Product, Design, and Engineering teams to deliver high-quality solutions.

Share knowledge and mentor other engineers when needed.

Which skills and experience do we envision for this role?

Required

6+ years of software engineering experience.

Strong experience building and deploying AI-powered applications.

Hands-on experience with LLMs, RAG systems, agents, and modern AI frameworks.

Strong Python and backend development skills.

Experience building production-grade software and APIs.

Experience working with cloud platforms such as AWS, GCP, or Azure.





Experience working directly with clients or stakeholders.

Strong client management skills, including technical and non-technical clients.

Strong product mindset and background about different techniques.

Strong communication and problem-solving skills.

Ability to lead technical decisions while remaining hands‑on.

Nice to have

Experience participating in technical pre-sales activities.

Experience in consulting or software services companies.

Experience with MLOps, observability, and AI evaluation frameworks.

Experience designing multi-agent systems and advanced AI workflows.

Success in This Role

Success in this role means becoming a trusted technical partner for both clients and internal teams. You'll help shape AI solutions, support business development efforts, and remain actively involved in building and delivering production-ready products.

Join our team and enjoy:

Access to Rootstrap University,Conferences/Certifications, and a Mentorship Program for your professional growth.

Learning Bonus

Opportunities to organize cross‑functional initiatives and receive 360 Feedback to improve your skills continuously.

The flexibility to work remotely or from our offices in Montevideo, Buenos Aires, and Medellín, with a versátil time schedule and Workation program.

Gym benefits, psychological counseling, and weekly lunch reimbursements with special foods in the offices.

An Onboarding kit and access to cutting‑edge technologies and tools to make your work easier.

After offices,



Prizes, and special occasions gifts to celebrate your achievements.

People Care referent to support your well‑being and personal development.

We value your well‑being and happiness.

We grow together!

How we work:

We offer a flexible and diverse work environment that fosters multicultural talent

We value autonomy and creativity, We want people to bring ideas to the table and to think as leaders.

We put our focus on real human connections

We have a commitment to excellence

At Rootstrap, we help companies launch, grow, and scale their digital products and services. With over 160 global team members, we’ve built solutions for industry leaders like Master Class, Universal, and Google, as well as for innovative startups and inspired pioneers.

Our team takes pride in making an impact that goes beyond the code, earning regular recognition as a Fastest Growing Company and Best B2B Service Provider.

We embrace an AI‑first mindset, continuously exploring how artificial intelligence can enhance the way we build products, solve problems, and deliver value. Across all stages of the development process, we encourage our teams to actively leverage AI to boost productivity and drive innovation.

With offices in Uruguay, Argentina, and Colombia, we offer the flexibility to work remotely. Discover more about life at Rootstrap at https://www.rootstrap.com/careers.

All of our candidate searches are covered under Uruguayan Law 19691 (the purpose of this law is to promote the inclusion of people with disabilities).

As part of our Security and Compliance process, all seniority levels and roles must follow the company’s information security policies and secure development practices, and promptly report any suspected security incidents or vulnerabilities.

#J-18808-Ljbffr

📌 AI Staff Engineer (Buenos Aires)
🏢 Rootstrap
📍 Buenos Aires