Staff/Senior Backend Engineer

Company: Thaia
Location: Buenos Aires, AR
Type:
Posted: Aug 19, 2026
Views: 0

They are building systems that help companies understand and control how they appear in AI-driven search experiences. As a Backend Engineer, you will build and optimize the infrastructure behind these systems. You will design scalable APIs, process large datasets efficiently, and ensure high-performance systems that support AI-driven insights.

What you’ll do

  • Architect and develop high-performance backend systems that support AI-driven analytics

  • Build and maintain scalable APIs to power real-time insights and data retrieval

  • Optimize data processing pipelines to handle large-scale structured and unstructured data

  • Ensure system security, performance, and reliability across the stack

  • Work closely with front-end engineers and data scientists to deliver high-impact features

  • Own key technical decisions, balancing speed with long-term maintainability

Who you are

  • A strong portfolio or GitHub showcasing backend development expertise

  • Proficient in Python or Rust, with experience in scalable backend architecture. Node.js is a plus.

  • Deep understanding of databases such as PostgreSQL, MySQL, or OLAP systems, including query optimization

  • Experience designing efficient data pipelines and working with distributed systems

  • Familiarity with cloud infrastructure (AWS, GCP, or Azure) and containerization (Docker, Kubernetes)

  • Strong grasp of security best practices, API authentication, and performance tuning

  • Comfortable in a fast-moving, high-performance startup environment.

Location

This is an on-site role, designed for builders who thrive on speed, iteration, and meaningful impact.

The total compensation package is designed to be competitive and includes base salary and a full range of benefits and perks. Final compensation will depend on factors such as your skills, experience, qualifications, and location, and will be determined during the interview process.

Benefits & Perks

  • Flexible equipment: Laptop and office setup covered so you can work the way you work best.

  • Food & transport: Meals and rides home covered on late nights.

  • $150 USD/month wellness stipend: Spend it on fitness, gear, or whatever keeps you at your best.

  • Flexible PTO: Vacation within normal ranges, taken when it makes sense for you and the team.

  • Occasional travel: Some trips are part of the role — fully covered when they come up.

  • Relocation support: Full relocation package available, including for candidates moving from other states.

If this role aligns with your background and interests, they'd love to hear from you.

About the Company

Name: Thaia

Boutique recruiting agency specializing in sourcing, selecting, and placing top-tier tech talent for companies across Latin America.

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