Backend Engineer - (NYC)

US Mobile is on a mission to revolutionize connectivity. Imagine a world where you can go into a single app and buy terabytes of data for every one of your devices: phone, smart devices, car, home broadband, and more. That’s the future that US Mobile is building: a software platform built truly for the 21st century and the age of 5G and IoT, with world class engineering, best-in-class user experience, and features that will define the next generation of connectivity.

At the core of it all, we have a team and culture that has been recognized by Forbes as one of the top 500 best startup employers in the US. Our team spans diverse backgrounds, cultures, and stories, with employees coming from 20+ countries.

We're a venture-backed company entering hypergrowth, having recently ranked 94th on Inc 5000's fastest-growing private companies in America, and we’re looking for someone exceptional to join our team.

Job Description:

We are looking for a skilled and motivated backend engineer to help us scale and connect millions of devices to wireless networks. In this role, you will be responsible for designing, developing, and maintaining scalable and robust backend services and APIs that power our products and services. You will work in a collaborative, agile environment, contributing to mission-critical systems.

The role is based out of our New York office.

• Develop and maintain RESTful APIs using Java (Spring Boot or related web frameworks) or Python (Flask, Django)
• Design and implement asynchronous service communication using RabbitMQ or AWS SQS/SNS
• Work with NoSQL databases like MongoDB for data modeling and storage
• Collaborate with Product, QA, and DevOps teams to deliver reliable and scalable features
• Write clean, testable, and well-documented code with unit and integration tests
• Participate in system architecture design, code reviews, and performance tuning

• 3+ years of experience with Java and Spring Boot
• Strong experience with building and consuming REST APIs
• Hands-on experience with message brokers such as RabbitMQ or AWS SQS/SNS
• Familiarity with MongoDB or other NoSQL database technologies
• Solid understanding of Git, CI/CD workflows, and agile development practices
• Excellent debugging, problem-solving, and communication skills
• Excellent problem-solving and debugging skills
• Strong communication and team collaboration skills

• Experience with AWS services (EC2, S3, Lambda, RDS, etc.)
• Familiarity with Docker or Kubernetes
• Monitoring and logging experience with Datadog (preferred), CloudWatch, or Prometheus
• Exposure to distributed system architecture and scalability patterns

• Competitive salary - $130k-165k (NYC based)
• Gym reimbursement
• Free cellular service on the best network in the US
• Free lunch in NYC office & fully stocked kitchen
• Metrocard reimbursement
• Flexible working hours

Think you’d be a great fit? Apply to learn more!