Lead AI Systems Engineer (Java/Kotlin) — Remote

N-iX

Union, Northern (NJ, KY)

Hybrid

USD 180,000 - 240,000

Full time

14 days+
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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.

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