AI Engineer- Agentic Customer Flow

ERGO NEXT Group INTERNAL•Waltham, MA

4h•Hybrid

About The Position

ERGO NEXT is seeking an AI Engineer with strong backend skills to design, build, and scale AI-driven capabilities. The role focuses on developing robust AI systems, the surrounding LLM harness and quality frameworks, and production monitoring for end-to-end delivery in a fast-paced environment. The work is heavily focused on backend engineering and generative AI. The position builds active APIs, microservices, and real-time serving infrastructure. It is not a data engineering role focused on ETL or batch-processing pipelines. The role follows a flexible hybrid model and requires at least three days per week in the Waltham, Massachusetts office.

Requirements

At least 4 years of backend engineering experience using Python, Go, Java, or a similar language.
At least 4 years of hands-on experience integrating machine learning or LLM models into production.
Familiarity with evaluating model performance using metrics.
Proven experience building high-performance or distributed systems.
Strong understanding of cloud infrastructure, microservices, and observability.
Ability to operate effectively under ambiguity and navigate dynamic environments.
Strong communication and collaboration skills.

Responsibilities

Design, implement, and optimize backend services that support AI workflows.
Integrate machine learning and LLM models into production systems, focusing on performance, reliability, and scalability.
Build and own AI features end to end.
Evaluate and monitor AI systems in pre-release and production environments.
Build reliable AI systems and write production code.
Diagnose complex issues across data pipelines, model serving, and backend components.
Collaborate with product and cross-functional teams to refine requirements and translate them into clear technical plans.
Contribute to system design, architecture reviews, and code quality improvements.
Identify opportunities for innovation and continuous improvement, and drive technical initiatives.