Motion Recruitment

Compensation

Full Description

Senior Full Stack Engineer I'm working with an innovative fintech company that's hiring a Senior Full Stack Engineer to join their Core Engineering team. This team builds the foundational systems that power authentication, data privacy, AI enablement, and internal tooling across the organization. • Hybrid (1-2 days/week) if you're local to an office in Silver Spring, MD, New York City, San Francisco, Miami, or Denver • Remote candidates are welcome if you are not local to an office Responsibilities • Build and maintain core services supporting authentication, data privacy, AI infrastructure, and internal tooling • Own projects from technical design through implementation, deployment, and ongoing support • Develop scalable backend services using Node.js, TypeScript, and relational databases • Build modern frontend applications with React (or similar frameworks) • Partner with Product, Data, and Operations teams to deliver reliable, scalable systems • Improve system reliability, observability, and performance across critical workflows • Design and enhance APIs, shared libraries, and platform tooling used across engineering • Participate in architecture discussions, code reviews, and technical documentation Requirements • 7+ years of professional full stack software engineering experience • Strong experience with Node.js, TypeScript, React (or similar), and Postgres (or another relational database) • Experience building scalable, production-grade web applications and backend services • Comfortable owning projects end-to-end with minimal direction • Strong understanding of observability, reliability, and production debugging • Experience collaborating across cross-functional engineering teams • Experience using AI-assisted development tools such as Cursor, Claude Code, GitHub Copilot, or similar • Experience with GraphQL is a plus Nice to Have • Authentication & Identity (OAuth, SSO, Auth0, session management) • Data Privacy & Trust Systems • AI Enablement / LLM infrastructure • Internal developer tooling and platform engineering experience Additional Information • No sponsorship or visa transfers are available for this position. Specialization : • Software Engineering