Founding Engineer

About Us

Blueberry is building the 1:1 marketer for the world’s most ambitious brands. The way brands engage with customers is fundamentally shifting. In the early days, founders reply to every comment, DM every follower, and know customers by name. But as audiences grow into the hundreds of thousands or millions, that intimacy breaks. Even with social managers, no team can authentically know every follower — so brands default to 1:many channels like mass email, SMS, and generic posts. The personal touch disappears.

At Blueberry, we’re rebuilding that intimacy at scale. Our product performs deep research on social followers, enables brands to authentically engage through personalized DMs, and delivers the perfect offer tailored to each customer at exactly the right moment. What once felt impossible — knowing every follower by name and why they care about your brand— is now achievable.

In under 3 months, we're live with 10 brands — including several 8- and 9-figure direct-to-consumer (DTC) companies to drive substantial revenue and nurture lasting loyalty.

We’re backed by Pear VC (first checks into Doordash, Dropbox, and Gusto) and Founders, Inc. Now, we’re hiring the founding team that will scale Blueberry across the world’s largest brands.

The Role

Brands with millions of followers rely on Blueberry to authentically engage their customers at scale. As our Founding Engineer, you’ll be a co-architect of everything we build at Blueberry. You’ll be responsible for shaping the technical foundation of the company: product, platform, and team culture.

You’ll work directly with the founders and Founding Designer to:

• Build and scale the core product that enables brands to authentically engage millions of followers.
• Make foundational architecture and stack decisions that allow us to move fast today while preparing for global scale tomorrow.
• Translate customer needs into elegant, resilient technical systems that balance speed, quality, and reliability.
• Set the tone for our engineering culture — one that is high-caliber, collaborative, and deeply product-minded.

You’ll have massive influence over how Blueberry evolves, from the codebase to the customer experience to the engineering org itself.

Tech Stack: Convex, Next.js, AI SDK, and more

What You'll Do

• Build core product features end-to-end. Ship high-impact functionality across our stack that helps the fastest-growing DTC brands engage millions of followers through authentic 1:1 interactions.
• Lay the technical foundation. Make key architecture, infra, and stack decisions that enable both rapid iteration today and enterprise-grade reliability tomorrow.
• Work directly with customers. Join product conversations, translate customer pain points into elegant technical solutions, and ship fast iterations that drive real outcomes for some of the fastest growing brands in the world.
• Collaborate deeply with design. Partner with our Founding Designer to bring polished, high-quality user experiences to life, ensuring the product feels as good as it works.
• Shape engineering culture. Establish coding standards, best practices, and processes that will scale as we grow — from CI/CD to testing to monitoring.
• Experiment and learn fast. Prototype new features, evaluate new technologies, and help us stay at the edge of what’s possible in AI-powered product engineering.

Who You Are

• A full-stack engineer with 3 years of experience in AI, SaaS, or consumer apps
• You use the latest and greatest in AI coding tools (Claude Code, Cursor, etc.)
• You move fast, take initiative, and care deeply about doing things right.
• You don’t just point out problems — you roll up your sleeves and solve them.
• You bring a clear point of view on what excellence looks like, while staying collaborative and low-ego (this is incredibly important across every team member).
• You’re your own toughest critic and hold yourself to an exceptionally high bar—90% isn’t good enough
• Entrepreneurial at heart: you thrive in ambiguity, adapt quickly, and want to shape something from the ground up.
• You want to win.
• You want to work with others who share the above traits.
  

Nice-to-Haves

• Prior startup or founding team experience.
• Visual and content design expertise alongside UI/UX talent
• Experience with social media APIs (Instagram, TikTok, Facebook, Twitter)
• Background in e-commerce platforms, payment processing, or customer data systems
• Previous startup experience, especially in AI, social tech, or commerce
• Open source contributions or side projects in relevant technologies
• Experience with real-time data processing and high-volume messaging systems
  

Why Join Us

• Foundational Impact. You’ll be one of the very first engineers at Blueberry, shaping the product, codebase, and engineering culture from day one. The systems you build will power how the world’s fastest-growing brands engage millions of customers.
• High-ownership Role. You’ll make core architecture and stack decisions, balance speed with scale, and influence product direction alongside the founders.
• Experienced Founders. Work directly with founders who bring deep product, engineering, and GTM expertise in the space (ex-Snapchat, ex-Cardless, multi-time founders).
• Momentum. In under three months, we’re live with 10 brands and backed by Pear VC and Founders, Inc. You’ll be joining at a critical inflection point as we position ourselves to win this market.
  

What we offer

• Competitive salary and significant equity package
• Comprehensive health, dental, and vision insurance with 401(k) matching
• Build the future of how brands interact with consumers, authentically
• Weekly team outings (dinners, events, an escape room or two)
• Unlimited PTO
• An opportunity to lead and define our company and industry.

Want to help shape how the fastest growing brands connect with their customers? We’d love to meet you.

Blueberry is an Equal Opportunity Employer committed to diversity and inclusion in the workplace. All qualified applicants will receive consideration for employment without regard to sex, race, color, age, national origin, religion, physical and mental disability, genetic information, marital status, sexual orientation, gender identity/assignment, citizenship, pregnancy or maternity, protected veteran status, or any other status prohibited by applicable national, federal, state or local law