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Senior Software Engineer (Backend-Focused Fullstack)
StartupTAP
- United States
- United States
About
We're hiring a Senior Software Engineer to drive development of core product features that directly impact millions of users. You'll own technical initiatives from concept through launch, building scalable backend systems and polished user experiences. This role balances hands-on engineering with technical leadership. You'll architect solutions, ship production code, and help mentor the engineering team as the company continues scaling. This is a hybrid position (2 days/week onsite) based in Seattle, WA. What You'll Do: Own and deliver major features across the full stack, from database design through frontend implementation Lead technical architecture decisions for backend systems and APIs Build high-performance APIs that support millions of transactions Design data models and services for complex business workflows Scale systems to handle growing user demand and transaction volume Create seamless user experiences across web platforms Ensure security and compliance in a fintech environment Partner with product and design teams to turn user needs into elegant, scalable technical solutions Drive complex projects from planning through production deployment Set engineering standards and contribute to the team's technical direction Mentor engineers and help build a strong engineering culture focused on quality and growth Make smart tradeoffs between shipping quickly and building for the long term Improve backend infrastructure, testing approaches, and system reliability Optimize system performance and reliability Requirements: 5+ years of professional software engineering experience with a track record of leading significant projects Strong backend development skills with Java/Kotlin (SpringBoot), Node.js, or similar server-side frameworks Experience designing and building REST/GraphQL APIs Proficiency with databases (MongoDB, PostgreSQL, or similar) Solid frontend capabilities with React, TypeScript, and modern JavaScript Proven ability to ship complete features end-to-end in production environments Strong product thinking and focus on user experience Excellent at collaborating across teams and communicating technical decisions Comfortable in fast-moving environments where priorities shift Experience mentoring other engineers Nice to Have: Background working with high-traffic consumer applications Experience with cloud infrastructure and scalability challenges Familiarity with A/B testing, analytics, and data-driven product development Knowledge of CI/CD practices, monitoring tools, and production operations Previous work in fintech, PropTech, or marketplace platforms Compensation & Benefits: Base Salary: $190,000 - $210,000 Equity options Comprehensive health coverage (medical, dental, vision) for you and dependents HSA/FSA options Flexible PTO policy 12+ paid holidays Parental leave and fertility benefits Retirement plan with company match Life and disability insurance Professional development support and mentorship programs Mental health resources and wellness perks Home office stipend and internet reimbursement Transit benefits Regular team events and recognition programs
Languages
- English
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