Senior Full Stack Engineer

Founded in 2012, Bugcrowd is the preemptive security platform that unifies exposure discovery and assessment, offensive testing, and intelligence shaped by AI and human insight to help organizations avoid, discover, and validate real-world risk. Bugcrowd helps security teams move faster by identifying the exposures that matter most so they can act first and stay ahead of attackers. By combining the power of humans and AI, teams can preempt attack paths and prevent breaches. Based in San Francisco and New Hampshire, Bugcrowd is supported by General Catalyst, Rally Ventures, Costanoa Ventures, and others. Visit www.bugcrowd.com. This is a seasoned engineer role in which you lead technical efforts across multiple teams or subsystems, owning system architecture and development across the stack. A Senior Software Engineer drives technical innovation, acts as a mentor and process advocate, driving improvements that scale beyond a single team. You will exercise high discretion over technical decisions and influence department-level business outcomes. You will set the architectural direction for the systems you own, make and document the key design tradeoffs, and provide strong leadership within and across scrum teams to deliver on that vision. Essential Duties and Responsibilities Proactively research, prototype, and introduce technologies and system designs for green-field products. Lead the design of new systems and major changes to existing ones: write design docs, evaluate alternatives, and document tradeoffs and decisions (e.g., ADRs) Primary IC for green-field product, ensuring long-term code maintainability, readability, and extensibility. Continuously evolve team processes, driving scalable improvements in delivery, quality, and collaboration. API & Integration Design, develop, and maintain scalable and secure APIs, UIs and integration services. Implement RESTful, RPC, and event-driven APIs/UIs for internal and external systems. Collaborate with product, data, and platform teams to ensure seamless system interoperability. Manage API lifecycle including versioning, authentication, monitoring, and performance optimization. Develop and maintain integration pipelines between SaaS systems, data sources, and third-party applications. Troubleshoot integration issues, conduct root cause analysis, and implement fixes. Support continuous improvement through automation, observability, and best practices. Education, Experience, Knowledge, Skills, and Abilities 5+ years of experience of software development experience Strong proficiency in TypeScript and modern JavaScript. Extensive experience with React and JavaScript web development frameworks (Next.js preferred) Experience with ORM frameworks and relational databases, including data modeling and provenance tracking patterns (Prisma, Drizzle, PostgreSQL) Experience building long-running, fault-tolerant workflows with durable execution engines (Inngest, Temporal, or similar) Hands-on experience integrating state-of-the-art LLMs into production systems, including agent design, tool use, and evaluation Strong understanding of integration patterns, and experiencing building external API integrations (pub/sub, webhook, ETL, etc.). Excellent debugging, analytical, and problem-solving skills. Preferred Experience Bachelor’s degree in Computer Science, Software Engineering, or related field. Working Conditions and Physical Requirements The ideal candidate must be able to complete all physical requirements of the job with or without reasonable accommodation. Sitting and / or standing