Senior Backend Engineer

Job overview

The Senior Backend Engineer role is listed in New York, NY; the posting does not specify a work arrangement. Compensation is $140,000–$180,000 per year. US Mobile is building a unified wireless communication network and technology systems intended to scale to millions of customers and connected devices. The engineer designs and builds backend services and APIs, supports system reliability and scale, and collaborates with Product, QA, and DevOps. The role contributes to new features, quality tools, and continuous uptime across the company’s technology platform.

What you'll do

• Develop and maintain RESTful APIs using Java with Spring Boot or Python frameworks
• design asynchronous service communication using RabbitMQ or AWS SQS/SNS
• work with MongoDB or other NoSQL databases
• collaborate with Product, QA, and DevOps
• write tested and documented code
• participate in architecture design, code reviews, and performance tuning.

What we're looking for

Skills & competencies

senior backend engineer

new york ny

us mobile

java

spring boot

rest apis

python

rabbitmq

aws sqs/sns

mongodb

ai-assisted development

$140k–$180k/year

Work arrangement

• Weekend coverage required

Benefits & perks

• Medical, dental, and vision coverage
• flexible paid time off
• gym and commuter reimbursement
• free cell phone service
• equipment choice and headphones
• 401(k).

Why this role

Requires 7+ years of Java and Spring Boot experience; the posting also calls for experience integrating AI-assisted development tools such as Claude and Opencode.

About the employer

US Mobile is hiring for this role. Industry: Wireless Telecommunications Carriers (except Satellite). Sector: 51.