Senior Full-Stack Python Engineer

About the Role

We're looking for a Senior Full-Stack Python Engineer to join a fast-growing startup building AI-powered products.

This is a hands-on engineering role where you'll work directly with the founders, own features end-to-end, and contribute to both technical and product decisions. Approximately 70% of your work will focus on backend development using Python, Django, and SQL, while 30% will involve React-based frontend development.

We're looking for someone who enjoys ownership, thrives in a fast-paced environment, and is comfortable using modern AI coding tools to accelerate development.

What You'll Do

• Design, develop, and maintain backend services using Python and SQL
• Build scalable APIs and production-ready backend systems
• Develop and enhance frontend features using React
• Take product features from idea through implementation and production
• Work directly with founders, engineers, and customers to shape product functionality
• Debug production issues and implement long-term solutions
• Make practical engineering decisions balancing speed, quality, and maintainability
• Contribute to architecture and technical direction
• Leverage modern AI coding assistants and agentic coding workflows to improve productivity

Must-Have Requirements

• 5+ years of professional software development experience
• Strong commercial experience with Python
• Strong SQL skills and experience with relational databases
• Experience building and deploying production software used by real customers
• Full-stack development experience with a strong backend focus
• Experience designing APIs and backend services
• Ability to independently own features from concept to production
• Experience using AI coding assistants or agentic coding workflows
• Strong debugging and problem-solving skills
• Product-oriented mindset
• Strong English communication skills
• Comfortable working in a fast-paced startup environment
• Availability to overlap with New York business hours

Nice to Have

• Commercial experience with Django
• Experience with React and JavaScript
• Experience with Pandas and dataframe-based data processing
• Experience with Node.js
• Experience with AWS or another major cloud platform
• Experience building AI-powered products, LLM applications, autonomous agents, or workflow automation
• Experience in B2B SaaS, sales tech, marketing tech, or data enrichment platforms
• Experience working directly with customers
• Previous technical leadership experience
• Startup experience

What We're Looking For

• Strong ownership mindset
• Ability to work independently with minimal supervision
• Practical engineering approach focused on delivering value
• Passion for clean, maintainable software
• Comfortable working in an environment with significant ownership and limited bureaucracy