To thrive as a Developer at a startup, you need strong coding abilities, familiarity with agile development methodologies, and a solid understanding of software engineering principles, often evidenced by a degree in computer science or related field. Experience with modern programming languages, cloud platforms, version control systems like Git, and sometimes full-stack or DevOps tools is highly valued. Resourcefulness, adaptability, and effective communication are vital soft skills in the fast-paced startup environment. These skills and qualities are essential for rapidly building and iterating products, collaborating with small teams, and responding swiftly to changing business needs.