Backend Architect for AI Data APIs (Java/Python)

Ethereum Technologies; Edison (NJ); On-site; USD 120,000 - 170,000; Full time

Job summary

Ethereum Technologies is seeking a seasoned backend engineer to design architecture and develop reusable MCP servers, tools, APIs, and data integration services for secure data consumption by AI agents and applications.

You will work with Java, Spring Boot, and Python to build scalable backend services, RESTful APIs, and microservices. The role emphasizes security, performance, and collaboration with data engineers and architects to deliver reusable solutions.

Qualifications

• Strong hands-on development experience with Java, Spring Boot, and Python for building scalable backend services and applications.
• Experience designing solution architectures, RESTful APIs, microservices, and reusable integration components, with the ability to apply these skills to MCP server and tool development.
• Strong SQL skills and experience integrating applications with relational databases and data platforms, preferably Starburst/Trino.
• Experience building secure, high-performance data access services for querying and exposing curated data to downstream applications and AI agents.
• Strong understanding of authentication, authorization, API security, performance optimization, and troubleshooting.
• Strong software engineering practices, including Git, CI/CD, automated testing, code reviews, and containerization.
• Ability to collaborate with architects, data engineers, and application teams to translate business requirements into scalable, reusable technical solutions.
• Understanding of LLMs, agentic AI architectures, tool calling, and MCP, with the ability to support data agent development.

Skills

Java

Spring Boot

Python

REST APIs

Microservices

SQL

API security

Authentication

Authorization

Performance optimization

Troubleshooting

Git

CI/CD

Automated testing

Code reviews

Containerization

LLMs

Agentic AI

Tool calling

MCP

Tools

Starburst/Trino

Job description

Ethereum Technologies is seeking a seasoned backend engineer to design architecture and develop reusable MCP servers, tools, APIs, and data integration services for secure data consumption by AI agents and applications.

You will work with Java, Spring Boot, and Python to build scalable backend services, RESTful APIs, and microservices. The role emphasizes security, performance, and collaboration with data engineers and architects to deliver reusable solutions.