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mimi

Software Engineer (Backend)

Durlston Partners

Fremont · On-site Full-time Mid Level 1mo ago

About the role

About Us

We’re working with a high-growth, Series E AI company building operational AI software for large, complex service industries.

Their platform deploys conversational and workflow-driven AI to automate front-office and operational processes across multiple channels — including voice, messaging, and web — at significant scale.

Already deeply embedded within one major US industry and expanding rapidly into another highly regulated sector, the business is helping organisations streamline operations, improve responsiveness, and materially reduce administrative workload.

Backed by leading global investors, they are now scaling aggressively across both product and engineering.

The Role

We’re looking for Backend Software Engineers with 2+ years of experience to help build and scale the core infrastructure behind high-volume, real-world AI systems.

You’ll work on the systems that power millions of daily interactions, designing APIs, data pipelines, and integration layers that sit at the heart of the platform.

This is a high-ownership environment with direct exposure to product, AI, and infrastructure challenges from day one.

What We're Looking For

  • 2+ years of software engineering experience
  • Degree in Computer Science, Mathematics, Physics, or related STEM field
  • Strong backend fundamentals (Python, Java, C# or C++)
  • Solid understanding of OOP and system design principles
  • Bonus: experience working with AI/ML systems or high-throughput production environments

Why Join

  • Work on real, production-grade AI systems operating at scale
  • Exposure to complex, regulated industries with meaningful impact
  • Strong growth trajectory with significant investment backing
  • High ownership, fast-moving engineering culture
  • Competitive compensation + equity

For the average American, housing and healthcare account for ~40% of household spending. These systems are notoriously complex, outdated, and painful to navigate, and this company is fixing that with agentic AI. If you're a backend engineer who wants your work to matter at scale, we'd love to hear from you.

Skills

C#C++JavaOOPPythonSystem Design

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