Senior Software Engineer, Web SDK

Amplitude is a leading digital analytics platform that helps companies unlock the power of their products. More than 3,500 customers, including Atlassian, Jersey Mike’s, NBCUniversal, Shopify, and Under Armour, rely on Amplitude to gain self-service visibility into the entire customer journey. Amplitude guides companies every step of the way as they capture data they can trust, uncover clear insights about customer behavior, and take faster action. When teams understand how people are using their products, they can deliver better product experiences that drive growth.

As an organization, we approach challenges with humility, take ownership of our contributions, and embrace a growth mindset that pushes us to constantly improve ourselves, each other, and the value we bring to customers and partners.

Amplitude’s Commitment to Diversity Equity & Inclusion (DEI): Amplitude believes that diversity enables the creation of better products, improves the ability to solve complex problems, and drives more powerful solutions. We strive to create an environment of inclusion—one focused on psychological safety, empathy, and human connection—that will allow employees of all backgrounds to thrive.

About The Role & Team

We’re looking for an engineer to work within our SDK engineering team, which is an integral piece of our Amplitude ecosystem. You will have full ownership of our open source data collection libraries and plugins. These products are used by thousands of customers to send hundreds of billions of events to Amplitude each month. If you’re passionate about building software that wows other developers and changes the way they think about analytics.

As a Senior Software Engineer, you will:

• Lead Development of Web SDKs: Design, build, and maintain Amplitude’s web SDKs, ensuring high performance, scalability, and ease of integration.
• Work Across Multiple Technologies: Leverage your polyglot skills to write and test code in various languages, frameworks, and tools.
• Support Developer Integration: Provide technical guidance and troubleshooting support to engineers integrating our analytics SDKs into their web applications.
• Write and Maintain Developer Documentation: Produce and refine high-quality documentation, including guides, README files, and technical documentation hosted on our docs site.
• Enhance Build and Deployment Pipelines: Extend CI/CD systems to automate building, testing, and deploying SDKs to npm and other package managers, ensuring smooth releases.
• Collaborate with Cross-Functional Teams: Work closely with product managers and designers to iterate on features and deliver a polished developer experience.
• Champion Engineering Excellence: Lead technical discussions, contribute to architectural decisions, and mentor team members on best practices for web development.

You'll thrive in this role if you have:

• Proven experience developing SDKs or libraries for the web, with a focus on performance and usability.
• Familiarity with techniques like tree-shaking and distributing SDKs via CDNs for optimal efficiency.
• Bonus: Experience working across the full stack, especially with Node.js and modern web frameworks.
• An eye for detail and a commitment to delivering polished, high-quality solutions.
• A track record of shipping libraries with intuitive, elegant APIs, widely adopted internally or as open-source projects.

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