Backend Product Engineer

Why Delphi?

We are redefining how knowledge is shared. We are enabling anyone to transform their unique expertise into an interactive experience, a digital version of their mind: a dynamic reflection of their knowledge and perspective. This is a completely new medium of knowledge transfer designed to make human intelligence deeply engaging and infinitely scalable.

Imagine a world where the collective wisdom of individuals isn’t locked away, but is instead a dynamic, ever-evolving resource anyone can engage with. We are building a future where human wisdom is abundant, learning is radically personalized, and individual brilliance scales effortlessly.

2,800 years ago individuals from across the Greek world and beyond, including kings, city-state leaders, and ordinary citizens, made pilgrimages to Delphi , seeking guidance on matters ranging from war and politics to personal affairs.

And now people will come to Delphi again.

Learn more about Delphi and this position by calling the CEO’s digital mind here!

Our Supporters

We are proud of the coalition that we’ve been able to build behind Delphi.

• The best investors and angels you can find: backing from Sequoia, Founders Fund, Abstract Ventures, Michael Ovitz, Gokul Rajaram, Olivia Wilde and the founders of Lyft, Zoom, Doordash, and more.

• Incredible customers: we are a trusted and loved product by thousands of the world’s most brilliant minds. From Tony Robbins to Codie Sanchez, our customers reach tens of millions of people

• High talent density: our team includes founders with successful exits and builders from Apple, Discord, Spotify, Substack and more, all focused on our mission.

We've more than doubled our revenue, users, and Delphi interactions in the last 6 months—all organically through word of mouth. We plan to accelerate even further from here.

What It Takes to Succeed at Delphi

Delphi is for those who want to be pushed to do their greatest work. We’re looking for those who don’t view their work as a job but rather, they want to shape the future of human connection and leave a lasting impact.

This will work for you if:

• You are ambitious – Our team is full of former founders, and entrepreneurial individuals who are taking on immense initiatives. In a world of barrels and ammunition, we are in search of barrels.

• You are obsessed – Being great doesn’t happen by accident . It is hard. You know that and it excites you. We value people who want to be great.

• You have a unique perspective, and tend to view the world positively – At the end of the day our product is a result of the collaboration of our team. We want people who are additive to culture. We value people who ask the question “What could go right?”

Your Mission

We're seeking an exceptional Backend Engineer who will architect, build, and scale the systems powering our digital mind architecture. As a key member of our engineering team, you'll own critical infrastructure components and help design resilient systems that can support exponential growth. Specifically, you will work on building Journeys - enabling Delphi customers to create experiences on top of their digital minds.

What You Will Own & Build

• Design and develop scalable backend services using Python, FastAPI, and PostgreSQL

• Architect data models and storage solutions for our clone creation and conversation systems

• Implement and optimize cloud infrastructure on AWS (ECS, Lambda, S3)

• Build high-performance caching solutions with Redis

• Collaborate with cross-functional teams to deliver innovative features

What We’re Looking For

• Python Excellence: Deep expertise in Python development, including modern async patterns and performance optimization

• System Design Mastery: Proven ability to architect complex distributed systems

• Data Modeling Expertise: Experience designing efficient database schemas and data access patterns

• Cloud Infrastructure: Strong understanding of AWS services and cloud-native architecture

• Networking Knowledge: Solid grasp of networking concepts (TCP/IP, TLS,

• Database Proficiency: Experience with PostgreSQL and query optimization

Nice-to-haves, but not required

• Experience with infrastructure as code (CloudFormation/Terraform)

• Knowledge of message queuing systems (SQS/SNS)

• Security expertise (IAM, access control, encryption)

• Containerization experience (Docker, Kubernetes)

• Familiarity with reactive programming principles

Why You Might NOT Like Working at Delphi

• High Expectations: We demand excellence. If you’re not comfortable with high standards, constant iteration, and direct feedback, this environment may not align with your working style.

• In-Person Collaboration: We believe in-person collaboration drives better ideas. If you thrive in a remote-first environment, this may not be the best fit.

• Ambiguity & Uncertainty: Many of our challenges don’t have obvious solutions. If you’re not comfortable navigating ambiguity or tackling problems without previous solutions this might not align with your working style.

• Not a 9-to-5: We move fast, iterate often, and tackle ambitious challenges. This isn’t a clock-in/clock-out environment.

What You Would Get

• Excellent team: We have worked hard to put together some of the most ambitious, creative, smart people that we have met. They want to get to know you and work with you.

• Equity: We are confident that this opportunity is massive, and we want you to share in the upside.

• Unlimited Learning Stipend: Whether it’s books, courses, or conferences, we want to support your growth and development. The more you learn and improve your craft the more effective we will be together.

• Health, Dental, Vision: Comprehensive coverage to keep to take care of your health.

• In-Person Office: Work from our beautiful office in Jackson Square, San Francisco. We believe that learning through osmosis, in-person, is the best way to learn.

• Ascension: We’ll push you to do the greatest work of your life, with opportunities to grow both personally and professionally.

Tell Us About You

If all of this piques your interest reach out to us with your resume or linkedin and share a little bit about

• Who you are.

• What you’re motivated by.

• Which role and why you’re a good fit.

No essays or AI-generated content, please. Authenticity is always the best.