Sameday Senior Backend Engineer Lehi, UT · Full time

Looking for an experienced engineer who is hungry for the startup life.


Sameday.AI: Revolutionizing Customer Engagement for Home Service Businesses

Sameday.AI, backed by prestigious programs and people, like Y-Combinator and renowned investors Nat Friedman and Daniel Gross, is at the forefront of integrating advanced AI technologies to transform customer service operations for home service industries globally. We empower businesses such as plumbers and roofers to harness the power of generative AI, ensuring they never miss an opportunity to engage with a new customer. Our groundbreaking solutions were the first in the world to handle phone calls at scale using Generative AI, setting a new standard in the industry. We are proud innovators in leveraging Generative AI to answer phone calls at scale and have been recognized as a top mover in consumer-facing conversational AI by Andreessen Horowitz. Our clients include some of the largest, most well-known consumer service brands across the US, Australia, and Canada.

Position Overview:

We are seeking a visionary Senior Backend Engineer to lead the architecture and development of our AI-driven scheduling agents. As a key member of our team, you will be instrumental in developing the core infrastructure that powers our AI solutions. Leveraging your expertise in backend engineering, distributed systems, and cloud-based architectures, you will lead the design, implementation, and optimization of scalable and robust backend systems.

Key Responsibilities:

  • Backend Development Leadership: Act as a lead for the backend development function, collaborating effectively with the CEO/founder to accelerate progress and innovation.
  • System Architecture: Design and develop scalable backend systems to support our AI-driven scheduling agents, ensuring high performance, reliability, and scalability.
  • Data Pipeline Development: Build robust data ingestion, preprocessing, and feature engineering pipelines to enable efficient training and inference of AI models.
  • API Development: Create and optimize RESTful APIs for seamless integration with frontend systems and third-party services.
  • Performance Optimization: Optimize backend systems for performance and scalability to handle large-scale data and ensure real-time responsiveness.
  • Innovation: Stay updated with the latest advancements in backend development, distributed systems, and AI to drive continuous improvement and maintain a competitive edge.


  • Experience: Minimum of 5 years (desired: 9+ years) of experience in backend software development with a strong proficiency in Python.
  • Technical Expertise: Strong experience in building and optimizing distributed systems, integrations, microservices, and cloud-based architectures (AWS preferred).
  • Database Skills: Strong understanding of database systems, SQL, and ORM architectures. Experience with MongoDB and vector databases is a plus.
  • API Development: Experience in building and consuming RESTful APIs (FastAPI, OpenAPI to Typescript frontend) and implementing security best practices.
  • Product Development: Demonstrated ability to autonomously drive architecture from concept to implementation.

Equity: 0.5-1.3%

Benefits: Medical, dental, and vision insurance with contributions towards employee premiums.

Sameday.AI is an equal opportunity employer. We are committed to creating a diverse and inclusive workplace where everyone is valued and respected. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability status, protected veteran status, or any other characteristic protected by law. We believe in fostering a culture of mutual respect and collaboration, where differences are celebrated, and innovation thrives.


$135,000 - $155,000 per month