Sr. Software Engineer; Remote) at Serotonin

Serotonin is a marketing and communications partner serving digital asset companies.

We are seeking a Senior Engineer to join our new product studio team for new product development. The ideal candidate will have deep software development experience, along with broad experience in design, product, and data. A background in early‑stage startups and 0‑to‑1 product development is strongly preferred.

• Evaluate and select technologies, tools, and frameworks for new product development projects
• Design and develop product architectures that balance flexibility with speed
• Collaborate closely with product managers, designers, and other stakeholders to translate ideas into actionable engineering tasks
• Implement, test, and maintain high-quality code, ensuring delivery of robust, scalable, and maintainable software over time
• Help grow the engineering team, through formal processes such as hiring and performance management and informal processes such as technical leadership, mentorship, and guidance
• Stay abreast of industry trends, emerging technologies, and best practices in web development
• Drive the integration of smart contract technologies into the product stack when applicable and contribute to the development of smart contract best practices
• Continuously improve the development process, identifying opportunities for increased efficiency and effectiveness

• Bachelor’s degree or higher in Computer Science, Engineering, or related field
• Minimum of 5 years of software development experience, focusing on prototyping and new product development
• Opinionated, independent, appreciate ownership, and thrive in a high‑velocity environment
• Demonstrated expertise in React and React‑based frameworks such as Next.js
• Experience designing and implementing scalable and maintainable software architectures
• Comfort with ambiguity and ability to make progress independently
• Experience with a variety of software development processes and understanding of strengths and weaknesses of each
• Passion for staying up‑to‑date with emerging technologies, trends, and best practices in web development
• Familiarity with smart contract development and people management is a plus, but not essential

• Competitive Salary, commensurate with experience, qualifications, and market standards
• Health Insurance (US Only)
• 401(k) (US Only)
• Remote Work Environment

We are committed to offering a competitive package that reflects the value you bring to the role.