Founding Full-Stack Engineer (+ Equity) at Series A AI startup

This is a role that TechTree is recruiting for on behalf of one of our clients.

TechTree is an AI-driven recruitment platform working with high-growth companies.

When you apply, our AI Agent matches you not just to this role, but to other relevant opportunities across our network, so one application can unlock multiple roles.

About The Role

Join as a founding engineer to build the next generation of AI-driven customer service solutions. You'll be instrumental in shaping the company's technology and customer interaction strategies, working directly with customers to deliver impactful solutions.

What You'll Be Doing

• Build and ship core product features across our stack, including Python, TypeScript, and cloud infrastructure.
• Engage directly with customers to understand needs, scope solutions, and deliver outcomes.
• Balance speed and scalability, knowing when to quickly deliver MVPs and when to invest in robust foundations.
• Implement best practices in testing, documentation, reliability, and security, while mentoring others.

What We're Looking For

• Customer-obsessed with a strong ability to empathize and build with customer success in mind.
• Action-oriented, with a willingness to experiment and learn quickly.
• Possess an owner's mindset, taking responsibility for outcomes and raising team standards.
• Ambitious and bold, eager to explore new ideas and technologies.
• Collaborative team player who contributes to a thriving team environment.
• Deeply care about the quality of work and continuously strive for improvement.

What You Bring

• Strong software engineering fundamentals with the ability to design, debug, and ship reliable systems.
• Proficiency in Python or TypeScript, or the ability to quickly learn necessary languages.
• Experience in building and shipping AI products end-to-end.
• Comfortable working across the stack, from frontend to backend and infrastructure.
• Ability to work directly with customers or non-technical stakeholders to deliver solutions.
• A track record of drive and initiative, such as launching projects or contributing to open source.

Nice to Have

• Experience in early-stage startups, particularly in AI, voice platforms, or event-driven systems.
• Familiarity with modern cloud infrastructure like Kubernetes and serverless systems.
• Evidence of customer empathy through support or founder experience.

Compensation & Benefits

• Competitive salary & equity - we are building together, we win together. Compensation can go higher for exceptional candidates.
• AI-focused learning & development opportunities.
• Team socials & annual offsites to exciting destinations.
• Private healthcare to ensure your well-being.

About The Company

Founded in June 2023, this company is revolutionizing customer service with AI Agents that handle calls, emails, and more. After participating in a prestigious accelerator, the company has seen rapid growth, raising a $13m Series A to further accelerate its expansion. The team is dedicated to building AI voice agents that enhance trades businesses' operations and customer experiences.

What is TechTree?

TechTree combines AI agents with a human support team to give candidates a better, more transparent hiring experience.

Our AI Agent gets to know your background, experience, and what you're optimising for. It continuously matches you to live roles across our network where there's genuine alignment, not just keyword overlap.

Our Human Team is there to support you through the process:

• Answer questions about roles, process, and next steps
• Add context when something in your background isn't obvious
• Help unblock stalled processes or unclear feedback
• Make sure you're not left guessing, ghosted, or wasting time

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If you apply: you'll be considered for this role, you may also be matched to other relevant roles, and if there's no fit, we won't spam you.