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Arize AIAA

AI Application Engineer

Arize AI is an AI observability and LLM evaluation platform designed to help AI engineers and developers surface model issues, resolve their root cause, and improve model performance.

Arize AI

Employee count: 51-200

Argentina only

About Arize

AI is rapidly transforming the world. As generative AI reshapes industries, teams need powerful ways to monitor, troubleshoot, and optimize their AI systems. That’s where we come in. Arize AI is the leading AI Agent Engineering observability and evaluation platform, empowering AI engineers to ship high-performing, reliable agents and applications. From first prototype to production scale, Arize AX unifies build, test, and run in a single workspace—so teams can ship faster with confidence.

We’re a Series C company backed by top-tier investors,with over $135M in funding and a rapidly growing customer base of 150+ leading enterprises and Fortune 500 companies. Customers like Booking.com, Uber, Siemens, and PepsiCo leverage Arize to deliver AI that works.

Note: The nature of this role requires candidates to be based in the Buenos Aires area, though there isn't an in-office requirement.

The Opportunity

We’re looking for an ApplicationEngineer who thrives on solving hard problems with code. In this role, you'll have the opportunity to work at the cutting edge of generative AI in a high-impact role with autonomy and ownership.

What You’ll Do

  • Debug and fix issues in our platform (and ship PRs with your fixes).
  • Build internal tools and copilots powered by generative AI to supercharge our team.
  • Rapidly prototype proof-of-concepts for customer use cases.
  • Work across Engineering, Product, and Solutions to unblock customers and push the boundaries of AI adoption.

What We’re Looking For

  • You have 2-5 years of experience in software.
  • Strong in Python and Golang; comfortable shipping fixes in production systems.
  • Hands-on with generative AI (LLM APIs, frameworks, building copilots or automations)
  • Hands-on with OpenTelimetry and deep familiarity with distributed tracing concepts.
  • Familiarity with AI frameworks (CrewAI, Langchain, Langgraph, DiFy, LiteLLM, etc).
  • Familiarity or eagerness to learn JavaScript/TypeScript.
  • Great debugger, creative problem solver, and fast learner.
  • Independent and resourceful. You create solutions, not dependencies.

Bonus Points (but not required!)

  • Experience in a customer-facing role
  • Built copilots, plugins, or custom GenAI-powered applications.
  • Open-sourced or contributed PRs to real codebases.
  • Startup or fast-moving environment experience.

Actual compensation is determined based upon a variety of job related factors that may include: transferable work experience, skill sets, and qualifications. Total compensation also includes unlimited paid time off, generous parental leave plan, and others for mental and wellness support.

More About Arize

Arize’s mission is to make the world’s AI work—and work for people.
Our founders came together through a shared frustration: while investments in AI are growing rapidly across every industry, organizations face a critical challenge—understanding whether AI is performing and how to improve it at scale.

Learn more about what we're doing here:

https://techcrunch.com/2025/02/20/arize-ai-hopes-it-has-first-mover-advantage-in-ai-observability/

https://arize.com/blog/arize-ai-raises-70m-series-c-to-build-the-gold-standard-for-ai-evaluation-observability/

Diversity Inclusion @ Arize

Our company's mission is to make AI work and make AI work for the people, we hope to make an impact in bias industry-wide and that's a big motivator for people who work here. We actively hope that individuals contribute to a good culture

  • Regularly have chats with industry experts, researchers, and ethicists across the ecosystem to advance the use of responsible AI
  • Culturally conscious events such as LGBTQ trivia during pride month
  • We have an active Lady Arizers subgroup

About the job

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Job type

Full Time

Experience level

Mid-level

Location requirements

Hiring timezones

Argentina +/- 0 hours

About Arize AI

Learn more about Arize AI and their company culture.

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Arize AI is dedicated to helping customers navigate the complexities of artificial intelligence and machine learning model performance. Many organizations invest heavily in developing AI models, only to find that their real-world performance is difficult to track, understand, and improve. Our customers face challenges such as model drift, where a model's predictive accuracy degrades over time due to changes in data; data quality issues that can silently corrupt model inputs and outputs; and the 'black box' nature of many AI systems, making it hard to diagnose why a model is making certain predictions or behaving unexpectedly. These challenges can lead to poor business outcomes, loss of customer trust, and inefficient use of resources.

To address these critical pain points, Arize AI provides a comprehensive AI observability and LLM evaluation platform. We empower AI engineers, data scientists, and ML practitioners to surface model issues quickly, trace them to their root cause, and ultimately, improve model performance and reliability. Our platform offers real-time monitoring, automated drift detection, explainability tools, and robust analytics to provide a clear view into how models are behaving in production. By offering a centralized inference store and connecting offline training and validation data with online production data, we enable teams to proactively identify and resolve issues before they significantly impact business operations. Whether our customers are working with traditional machine learning models, large language models (LLMs), or complex AI agents, Arize AI offers the tools and insights needed to ensure their AI initiatives are successful, transparent, and deliver tangible value. We are committed to fostering a future where AI works effectively and responsibly for everyone.

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