Full-Stack Engineer – AI Security Products (Full time, Europe/Asia)

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