Senior Full-Stack Engineer (+ Equity) at YC-backed AI-native enterprise

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

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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

We are seeking a Full-Stack Engineer to join a dynamic team focused on building an AI-native workspace. This role involves designing, developing, and maintaining scalable systems across the stack, impacting high-profile enterprise clients.

What You'll Be Doing

• Design, develop, and maintain frontend applications using React and Next.js.
• Build, test, and deploy backend services and APIs, preferably using Python/Django/FastAPI.
• Collaborate with founders, growth team, designers, and engineers to deliver impactful features.
• Ensure scalability, performance, and security across the stack.
• Implement CI/CD pipelines, automated testing, and monitoring solutions.
• Contribute to infrastructure planning, deployment, and optimization in cloud environments (AWS, GCP, or Azure).
• Mentor junior developers and promote engineering best practices.

What We're Looking For

• 5+ years of professional software engineering experience.
• Proven experience with React and Next.js in production environments.
• Strong backend development skills, preferably in Python.
• Solid understanding of relational and/or NoSQL databases.
• Experience with Git and collaborative development workflows.
• Knowledge of cloud infrastructure, containerization (Docker, Kubernetes), and CI/CD pipelines.
• Experience implementing background workers and task queues (Celery, RQ, etc.).
• Proficiency with Redis for caching, pub/sub, or job queues.

Compensation & Benefits

• £100,000 – £175,000 + equity
• Supportive and innovative work environment
• Opportunity to help shape and build a generational company

About The Company

The client is an AI-native workspace initially designed for investment banking, private equity, consultancies, and asset managers. The company is led by two well-known founders who have successfully sold their last two YC-backed companies. They have raised significant funding from Y Combinator and top-tier venture firms, with live deployments at prestigious global institutions. The team operates across New York, London, and Hong Kong, aiming to become the leading AI application platform for enterprise.

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