Lead AI Systems Engineer (Java/Kotlin) — Remote

N-iX; Union, Northern (NJ, KY); Hybrid; USD 180,000 - 240,000; Full time

Benefits offered by this job

Flexible working format

Competitive salary

Mentorship program

Tech talks and trainings

Job summary

N-iX is seeking a Lead Java/Kotlin/AI Engineer to shape, build, and scale advanced AI systems for a global ecommerce platform. You will drive architectural decisions, mentor engineers, and own critical AI initiatives across services and product surfaces.

The role requires deep hands-on engineering, strong architectural judgment, and the ability to influence through collaboration. Expect work across generative AI, LLMS, retrieval, and agent-based workflows in a high-traffic environment.

Qualifications

• 10+ years of software/machine learning engineering experience.
• 3+ years leading complex technical initiatives across teams.
• Hands-on design and implementation of production AI systems.

Responsibilities

• Lead architecture, design, development, and optimization of scalable AI systems.
• Own technical direction for high-impact AI initiatives spanning multiple services and teams.
• Build agent-led experiences and backend systems with planning, memory, tool use, and multi-agent coordination.
• Translate business opportunities into clear technical strategies, plans, and milestones.
• Drive decisions for AI-powered products ensuring reliability, scalability, and observability.
• Contribute to backend services, AI orchestration, model integration, APIs, and data pipelines.
• Collaborate with Product, Research, Data Engineering, Platform Engineering, and Software teams.
• Establish standards for AI system design, evaluation, and responsible AI practices.
• Lead design reviews, architecture reviews, and production-readiness assessments.
• Mentor engineers and promote knowledge sharing on AI topics.
• Advance GenAI platform with reusable components, APIs, and shared services.
• Define and improve AI evaluation, experimentation, and production feedback.

Skills

Java

Kotlin

AI engineering

LLMs

Generative AI

Spring

Docker

Kubernetes

REST API

GraphQL

gRPC

CI/CD

Observability

Mentorship

Tools

Spring Framework

Docker

Kubernetes

REST

GraphQL

gRPC

Job description

N-iX is seeking a Lead Java/Kotlin/AI Engineer to shape, build, and scale advanced AI systems for a global ecommerce platform. You will drive architectural decisions, mentor engineers, and own critical AI initiatives across services and product surfaces.

The role requires deep hands-on engineering, strong architectural judgment, and the ability to influence through collaboration. Expect work across generative AI, LLMS, retrieval, and agent-based workflows in a high-traffic environment.