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Senior Software Engineer, Back End

Noxx

$160,000 - $190,000
Sep 25, 2025
Remote, US
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Tomo is a digital mortgage company aiming to simplify and reduce the cost of home buying by eliminating greed and complexity in lending through an AI-driven customer experience. The company seeks to make the lending process faster, less frustrating, and more affordable for homebuyers.

Requirements

  • Proficiency with Python and experience building backend systems using microservice architectures.
  • Solid understanding of AWS services, containerization (Docker), and orchestration (Kubernetes).
  • Experience using AI-powered developer tools is a must. You've leveraged LLMs or similar technologies to enhance your coding efficiency, even if not yet working with fully agentic coding systems.
  • Understanding of modern software engineering practices, including logging, monitoring, continuous deployment, and automated testing.
  • Experience with integrating or optimizing LLM-powered workflows.
  • Experience in modern frontend frameworks or API contract design.
  • Experience with observability tools like Datadog.

Responsibilities

  • Designing, building, and maintaining scalable Python microservices that power Tomo's platform.
  • Owning backend architecture decisions and contributing to API design and integration patterns across services.
  • Deploying, monitoring, and supporting systems in production as part of an on-call rotation.
  • Driving healthy engineering practices, including code review, iterative delivery, automated testing, and continuous deployment.
  • Collaborating closely with product managers, designers, and frontend engineers to deliver seamless customer experiences.
  • Leveraging AWS infrastructure, Kubernetes, and modern DevOps tooling to ensure reliability and performance.
  • Supporting deployed systems in production as part of an on-call rotation.

Other

  • Has empathy for homebuyers and enjoys building technology that improves their journey from discovery to closing.
  • Brings their own unique background and experiences to the team, adding fresh ideas and perspectives.
  • Thrives in a startup environment with ambiguity and enjoys collaborating to figure out the best path forward.
  • Is a team-first engineer who jumps in to fight fires, provides constructive feedback, and always thinks about both the customer and Tomo as a whole.
  • Learns continuously and stays current with new trends and technologies, especially in backend engineering and AI.