US Mobile

Backend Engineer - (NYC)

Sorry, this job was removed at 04:10 p.m. (CST) on Wednesday, Oct 08, 2025

New York City, NY

Hybrid

Internet of Things • Mobile • Other • Software

We’re on a mission to revolutionize connectivity. We're building the next-generation connectivity platform.

The Role

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.

Key Responsibilities:

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

Qualifications:

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

Nice to Haves:

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

Benefits:

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!

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The Company

New York City, NY

131 Employees

Year Founded: 2014

What We Do

At US Mobile, we’re on a mission to revolutionize connectivity. We're building a next-generation connectivity platform to connect the next billion wireless devices onto nationwide 4G and 5G networks, including your phone, drone, car, watch, pet tracker, and everything in between. We’re accomplishing this by leveraging cutting-edge technology and forward-thinking UI design.

Whether it’s with our free high-speed international roaming, customizable perks, AI-facilitated plan savings, customizable plans, or real-time dashboards, we’re building the industry’s most delightful user experience all backed by our excellent customer service.

US Mobile’s 4G LTE network reaches more than 300 million Americans and includes international calling to over 200 countries and territories, but you will never hear from an operator at US Mobile. Our real, live Customer Support Representatives are available by phone or chat 24 hours a day, 7 days a week – to keep you connected, informed, and saving with US Mobile.