Senior Software Engineer (backend)

Motion is seeking a Senior Software Engineer to drive its distributed backend ecosystem connecting cloud infrastructure with Ubuntu-based field devices. The role focuses on building and maintaining Go-based backend services, RESTful APIs, databases, caching layers, and custom deployment pipelines while collaborating with the Staff Engineer on architecture and engineering standards.

Responsibilities:

• Core Development: Design and implement backend features in Go, ensuring they are performant, secure, and maintainable
• Technical Collaboration: Work as a primary partner to the Staff Engineer to execute architectural plans and maintain high engineering standards across the stack
• Public API Maintenance: Help manage and evolve our Public API, ensuring a high-quality experience for external developers and internal systems alike
• System Reliability: Maintain and optimize our SQL databases and caching layers to ensure the system scales as our device fleet grows
• Edge Orchestration: Manage the lifecycle of software bundles (Go binaries and scripts) running on our field devices via our custom deployment pipelines

Requirements:

• • 6–8+ Years of Backend Experience: A proven track record of shipping and maintaining production services
• • Go (Golang) Proficiency: While Go doesn't need to be your current primary language, you have direct experience writing and deploying Go in a professional environment and can contribute to our codebase immediately
• • Microservices & API Design: Experience implementing decoupled microservice architectures and developing RESTful APIs (both internal and public-facing)
• • Modern Authorization: Familiarity with relationship-based access control (ReBAC)
• • Cloud Infrastructure (AWS): Familiarity with managing and deploying applications within a cloud environment
• • Data Persistence & Caching: Solid proficiency in SQL (e.g. PostgreSQL) and experience using caching systems (e.g. Redis) to optimize application performance
• • CI/CD & Automation: Experience using automated deployment pipelines and a desire to build portable, efficient workflows
• • Containerization: Practical experience with Docker for local development and containerized deployments
• • Linux (Ubuntu) Proficiency: Strong command of the Linux environment. You are comfortable writing Bash scripts and managing software within an Ubuntu-based system
• • Custom Orchestration: Comfort working with custom deployment mechanisms for pushing software updates and Docker images to remote hardware in the field
• • Systems Mindset: You understand the challenges of remote device management, such as handling intermittent connectivity and resource constraints
• Experience with OpenFGA or similar Zanzibar-style logic is a plus
• preferably AWS