Senior Backend Engineer: APIs & Microservices

Machine Learning Technologies, LLC; Jersey City (NJ); On-site; USD 90,000 - 130,000; Full time

Job summary

Machine Learning Technologies, LLC is seeking a Backend Developer to design, develop, and maintain scalable server-side applications and enterprise services. The role emphasizes API development, database integration, performance optimization, and building secure backend systems that support business-critical applications.

You will work with Java, Python, C#, or Node.js and frameworks such as Spring Boot, Django, .NET Core, or Express.js to build RESTful APIs and microservices.

Qualifications

• 5+ years of backend development or software engineering experience.
• Experience building API-centric, database-driven, distributed backend systems.
• Solid understanding of Agile SDLC practices.
• Strong debugging, analytical, and problem-solving abilities.
• Ability to work independently and with cross-functional teams.

Responsibilities

• Design, develop, and maintain scalable backend applications and services.
• Build and integrate REST APIs and microservices.
• Implement business logic, data processing, and database operations.
• Optimize performance, scalability, and reliability.
• Develop secure components and access-control mechanisms.
• Integrate backend with front-end, third-party systems.
• Troubleshoot defects and production issues.
• Participate in code reviews and unit testing.
• Collaborate with frontend, QA, DevOps, and architects.
• Maintain technical documentation and best practices.

Skills

RESTful APIs

Microservices

API security

Distributed systems

Education

Bachelor's degree in CS/IT/SE

Master's degree preferred

Backend/cloud certifications advantageous

Tools

Spring Boot

Django

.NET Core

Express.js

PostgreSQL

MySQL

Oracle

SQL Server

MongoDB

Redis

DynamoDB

Kafka

RabbitMQ

AWS

Azure

Google Cloud

Docker

Kubernetes

Git

CI/CD

Job description

Machine Learning Technologies, LLC is seeking a Backend Developer to design, develop, and maintain scalable server-side applications and enterprise services. The role emphasizes API development, database integration, performance optimization, and building secure backend systems that support business-critical applications.

You will work with Java, Python, C#, or Node.js and frameworks such as Spring Boot, Django, .NET Core, or Express.js to build RESTful APIs and microservices.