Senior Software Engineer

Senior Software Engineer — Fargo, ND (On-Site Only | Local Candidates Only)

**Location Requirement — Please Read Before Applying This position is located in Fargo, North Dakota and requires full-time, in-office presence. We are only accepting applications from candidates who currently live in the Fargo-Moorhead area or who can provide a specific, committed relocation plan. Remote work is not available — not now, not in the future. If you are not currently local or do not have a confirmed plan to relocate, please do not apply.

About 701x

701x is transforming the livestock industry through precision ranching technology. Our platform gives ranchers real-time data and actionable insights to improve efficiency, sustainability, and animal health. We build practical tools that solve real-world problems — and we're looking for experienced engineers who want their work to make a visible impact in one of the most important industries in America.

About the Role

We are seeking a Senior Software Engineer to join our in-house engineering team in Fargo, ND. This role is ideal for someone who thrives in a fast-paced, product-driven environment and takes full ownership of projects from concept through deployment.

You'll design and build scalable web and mobile applications that power our ranching technology platform, working closely with product managers, designers, and fellow engineers to deliver reliable, user-friendly solutions for customers across the agriculture industry.

This is a full-time, in-office position in Fargo, ND. No exceptions.

Key Responsibilities

• Design, develop, and maintain scalable web applications using React
• Build and support cross-platform mobile applications using React Native
• Design and implement RESTful APIs and backend services
• Collaborate with product, design, and engineering teams to define and deliver new features
• Write and maintain unit and integration tests to ensure code qua...