Sr. Full Stack Developer

Quantstamp is building next-generation security products that combine AI reasoning, automation, and human expertise. We re looking for a Full-Stack Engineer to join us on the product side — someone who can move fast, think like a builder, and help turn ideas into real tools that make software systems safer and smarter. You ll be working across the stack to prototype, design, and deliver AI-driven products, from web apps to internal tools in close collaboration with AI researchers, auditors, and security engineers. This role is perfect for an engineer with a startup mindset who enjoys wearing multiple hats and thrives in fast-moving environments. Candidate Profile • Background in Computer Science or related field • 5+ years of full-stack development experience building high-performance, large-scale applications using technologies such as NextJS, React, Electron and Python • Possesses a deep understanding and independent perspectives on AI agents and LLMs. • Experience building LLM applications using AI/ML frameworks and libraries (e.g., LangChain, OpenAI SDK). • Develop backend services and APIs using Python, Node.js, and TypeScript. • Design and implement intuitive, responsive front-end web interfaces using React and Next.js. • Familiarity with blockchain and smart contract environments, including libraries such as wagmi.js and ethers.js, and experience interacting with smart contracts. • Comfortable with CI/CD pipelines, monitoring, and cloud platforms like AWS and Heroku • Experience with SQL/Postgres • Detail-oriented mindset, willingness to learn, and quality-driven personality • Fluent English communication, both written and spoken • Partial overlap, at least 4 hours per workday, with SGT. Nice to Have • 1+ years experience in creating DeFi applications • Experience in cybersecurity and whitebox auditing • Fluent mandarin communication, both written and spoken Compensation & Perks • A competitive salary that matches your experience, plus performance bonuses and token grants • Work from anywhere, 100% remote, and flexible working hours • Generous paid time off, including maternity/paternity leave • Retirement/pension plan • Free gym membership, or any virtual alternative of your choice • Rent your own desk in a co-working space or work from anywhere at any time. • Join all-expenses-paid retreats in exotic/exclusive locations with the team