Senior Lead Software Engineer

US3 Innovations is the exclusive talent partner for Amperity's expansion into Argentina.

We have been selected to build their foundational engineering team for a groundbreaking new venture.

Amperity, a leading U.S.-based Customer Data Platform, is building its third global engineering hub in Argentina, and we are looking for the foundational leaders who will define their technical excellence and culture from day one. This is not just another job; it's a unique opportunity to be a founding member of a strategic team with a vision to grow to over 100 people.

Our Role: As Amperity's strategic partner, US3 is conducting the initial, confidential screening process to identify the best talent in the region. We will connect qualified candidates directly with Amperity's leadership for the formal interview loop.

The Company

Amperity is a leading Customer Data Platform built on patented, AI-driven identity resolution and customer data infrastructure. Our platform tackles complex data fragmentation at scale by stitching together billions of records across transactions, behaviors, and interactions to power precise, real-time customer experiences. Since our founding in 2016, we've helped over 100 top brands — including Alaska Airlines, Gap, and Vail Resorts — unlock a complete view of their customers and deliver exceptional experiences.

We’re building foundational technology for some of the world’s biggest brands and solving high-impact problems in distributed systems, data quality, AI, and intelligent activation. If you want to work on hard problems with great people, and do it from anywhere, we’d love to hear from you.

The Team

Amperity engineers work in small, autonomous teams that move fast and take full ownership of their work. We value collaboration, clear communication, and iterative development focused on solving real customer problems. Engineers are deeply involved in shaping both what we build and how we build it. We partner closely with Product, Customer Success, and other cross-functional teams to deliver high-impact solutions.

Interesting Problems

We’re tackling hard, meaningful challenges at the intersection of big data, AI, and customer experience. Some of the kinds of problems engineers at Amperity work on include:

• Processing massive volumes of structured and unstructured customer data in real time.
• Designing intuitive tools to help users explore, activate, and extract value from their data.
• Applying machine learning and AI to improve identity resolution, prediction, and personalization.
• Building APIs and integrations that connect Amperity deeply into customer ecosystems.
• Reimagining how brands use data to drive measurable business outcomes.

About You

You’re an experienced software engineer with a bias for action and a passion for solving real-world problems. You’re comfortable working across the stack, collaborating with others, and taking ownership from design through production.

What we’re looking for:

• 5+ years of experience building and shipping production-grade enterprise software.
• Proficiency with a functional programming language, ideally Clojure or ClojureScript, in production environments.
• Experience as a full-stack engineer, or strong backend/front-end skills with willingness to work across the stack.
• Ability to take features from design to production while working closely with engineers, product managers, and other stakeholders.
• Experience building with large language models, including implementing agents, custom tooling, or evaluation frameworks.
• Experience with applying AI/ML models in production environments, especially for personalization, prediction, or data enrichment is a plus.
• Strong collaboration and communication skills in English and especially in distributed team environments.

Technologies We Use

You don’t need to know everything we use — curiosity and adaptability go a long way. But here’s a look at some of the technologies in our stack:

• Languages & Frameworks: Clojure, ClojureScript.
• Data Infrastructure: Apache Spark, Presto, Kafka.
• Cloud & DevOps: Kubernetes, Terraform, multi-cloud operations.
• AI/ML: Machine learning models, probabilistic systems, AI Agents, evaluation frameworks.

Join Us:

This is more than just a senior engineering role. It's a chance to be a true founder—to build a world-class team from the ground up and to solve challenges at a scale that few companies offer. If you are a leader who thrives on ownership and wants to make a lasting impact on a foundational product, we want to talk to you.

Apply now to be a part of our founding team in Argentina.