AI Solutions Engineer: Backend & LLM Integrations

nRouter; Sunnyvale (CA); On-site; USD 64,000 - 100,000; Full time

Job summary

nRouter in Sunnyvale, CA is seeking a software engineer intern to work directly with customer teams to build, deploy, and support production software and AI solutions. You will connect backend systems (Java, Spring Boot, Python, FastAPI) with modern LLM workflows (prompting, RAG, tool calling) and deploy REST APIs on cloud infrastructure (AWS, Docker, Kubernetes).

The 3‑month evaluation internship leads to a full‑time role with compensation ranging from $64,000 to $100,000 per year, based on

Qualifications

• Degree in Computer Science, Software Engineering, or a related quantitative field.
• Solid coding skills in Java and Python with strong CS and OOP fundamentals.
• Hands-on experience with REST APIs and frameworks (Spring Boot or FastAPI).
• Familiarity with SQL (PostgreSQL), Docker, and basic cloud concepts (AWS).

Responsibilities

• Build and deploy backend microservices and REST APIs in Java (Spring Boot) and Python (FastAPI).
• Integrate customer systems with databases (PostgreSQL), message queues (Kafka, Redis), and cloud infra (AWS, Docker, Kubernetes).
• Connect applied AI features — LLM APIs, retrieval-augmented generation (RAG), and intelligent routing — to live workloads.
• Work directly with customer engineering teams to turn requirements into working code.
• Debug, test, and support integrations in production to keep reliability high.

Skills

Java

Python

REST APIs

CS fundamentals

OOP

Education

Bachelor's degree in Computer Science or related

Tools

Spring Boot

FastAPI

PostgreSQL

Docker

AWS

Kafka

Redis

Job description

nRouter in Sunnyvale, CA is seeking a software engineer intern to work directly with customer teams to build, deploy, and support production software and AI solutions. You will connect backend systems (Java, Spring Boot, Python, FastAPI) with modern LLM workflows (prompting, RAG, tool calling) and deploy REST APIs on cloud infrastructure (AWS, Docker, Kubernetes).

The 3‑month evaluation internship leads to a full‑time role with compensation ranging from $64,000 to $100,000 per year, based on