Senior Fullstack Software Engineer, Enterprise Foundation

Amplitude is the leading AI analytics platform, helping over 5,200 customers—including Atlassian, Burger King, NBCUniversal, and Square—build better products and digital experiences. With powerful AI Agents embedded across our platform, teams can analyze, test, and optimize user experiences faster than ever. Ranked #1 across multiple categories in G2’s Winter 2026 Report, Amplitude is the best-in-class solution for product, data, and marketing teams. Learn more at amplitude.com http://amplitude.com. As an organization, we deliver for our customers by living our values. We operate from a place of humility, take ownership of problems and successes, approach challenges with a growth mindset, and put our customers at the center of everything we do. Senior Fullstack Software Engineer , Enterprise Foundation hybrid- San Francisco, California or Vancouver, Canada About The Role & Team We’re looking for a Senior Fullstack Engineer to join the Enterprise Foundation team, the group that builds the foundations enterprise customers rely on to run Amplitude at scale: permissions and access control, enterprise identity and administration, alerts, exports, and shared services. You’ll work with our Product Manager and Designer to define, build, and ship end-to-end features and platform capabilities that make Amplitude secure, governable, and dependable for the largest organizations in the world. You’ll own your impact from shaping technical and product direction to delivering reliable, performant, and well-designed experiences. Our engineers are customer-focused and solve complex problems where correctness and reliability matter. Because our systems sit underneath many customers and teams, we plan deliberately for reliability, migrations, support, and incident response alongside roadmap delivery. If you’re passionate about building trustworthy, enterprise-grade foundations that other teams and customers build on, we’d love to meet you. The team’s mission is to deliver the enterprise-grade foundations (permissions, administration, governance, alerting, and shared services) that let customers confidently adopt and scale Amplitude, while driving infrastructure initiatives that strengthen and scale the platform. As a Senior Engineer, you will: - Work with Product Management and Design to turn enterprise customer needs into well-scoped engineering solutions - Own the end-to-end delivery of projects, from design through rollout, migration, and ongoing operation - Design and build reliable services and APIs, with attention to security, correctness, and blast radius - Take part in on-call, incident response, and the long-term reliability of the systems the team owns - Get involved in performance optimization and scaling efforts - Lead the highest-leverage projects and contribute to the team’s technical direction - Mentor and contribute to the success of other engineers on the team You'll be a great addition to the team if you: - Have 5+ years of experience building and improving robust, scalable backends and developing interactive, user-facing applications - Understand the whole stack and flow of user-facing web applications - Have backend experience with application backends, microservices, and high-throughput systems - Have experience with, or strong interest in, authentication, authorization, permissions models, or other enterprise-grade platform capabilities - Have a track record of safely migrating and evolving critical systems with minimal customer impact - Have a strong critical thinking and problem-solving mindset with attention to detail - Have exceptional communication skills, adapt well to changing requirements, and have a proven track record of successful delivery - Can synthesize customer input and architectural knowledge to create outsized engineering impact - Have a constant desire to learn and grow in the field of web development - Have experience with CI/CD pipelines and are a strong practitioner of automated testing - Are familiar with the following: React, TypeScript, Python, NestJS, Temporal - Have interest or experience in technical leadership of an engineering team #LI-hybrid This role is eligible for equity, benefits and other forms of compensation. Based on Colorado law, the following details are for individuals who will work for Amplitude in Colorado: Colorado range: $150000 - $207,000 base salary (inclusive of bonus or commission) Based on legislation in New York City, the following details are for individuals will work for Amplitude in New York City: New York City salary range: $167000 - $230,000 base salary (inclusive of bonus or commission) Based on legislation in California, the following details are for individuals who will work for Amplitude California: California salary range: $167000 - $230,000 base salary (inclusive of bonus or commission) Based on legislation in Washington state, the following details are for individuals who will work for Amplitude in Washington state: Washington salary range: $150000 - $207,000 base salary (inclusive of bonus or commission) Based on legislation in Washington state, the following details are for individuals who will work for Amplitude in Washington only: unlimited PTO, 10 to 13 holidays annually (will vary), medical dental and vision PPO and CDHP plans. Finally, a company sponsored 401(k) retirement plan. OUR VALUES: At Amplitude, our values guide how we show up for one another and for our customers: - Humility: We operate from a place of empathy and openness, seeking to understand many points of view. - Ownership: We take the initiative to solve problems that drive our shared company success. - Growth Mindset: We’re tenacious in the face of challenges and seek feedback in order to grow ourselves and others. - Customer Centricity: We put the customer at the center of everything we do and are deeply committed to their success. We care about the well-being of our team: We offer competitive pay and benefits packages that