Senior Fullstack Software Engineer

Who Are We? Postman is the world’s leading API platform, used by more than 45 million+ developers and 500,000 organizations, including 98% of the Fortune 500. Postman is helping developers and professionals across the globe build the API-first world by simplifying each step of the API lifecycle and streamlining collaboration—enabling users to create better APIs, faster. The company is headquartered in San Francisco and has offices in Boston, New York, Austin, Tokyo, London, and Bangalore - where Postman was founded. Postman is privately held, with funding from Battery Ventures, BOND, Coatue, CRV, Insight Partners, and Nexus Venture Partners. Learn more at postman.com or connect with Postman on X via @getpostman. P.S: We highly recommend reading The "API-First World" graphic novel to understand the bigger picture and our vision at Postman. The Opportunity The Customer Journey team at Postman is responsible for shaping how users experience the product from their first interaction through to becoming active, engaged customers. We own the critical paths between sign-up and purchase including new user onboarding and the moments where users discover and adopt key features. As Postman expands what it means to be a customer, from enterprise organizations to teams of engineers to individual developers working with AI agents, this team plays a central role in defining and evolving those experiences. We’re looking for a Senior Engineer who is excited to build and improve product journeys end-to-end. You’ll work at the intersection of product, design, and engineering to create intuitive, high-quality experiences that help users find value in Postman—whether they’re exploring on their own or collaborating as part of a team. What You’ll Do Own and improve key product journeys from sign-up through onboarding, feature discovery, and purchase Build and refine user experiences that help developers and teams quickly understand and realize the value of Postman Design and implement features that drive adoption of core platform capabilities across different user types (individuals, teams, and AI-assisted workflows) Partner closely with Product, Design, and Data to identify opportunities and prioritize improvements across the user journey Use experimentation and analytics to inform decisions and validate the impact of changes Develop a deep understanding of how developers use Postman—individually and collaboratively—and apply those insights to improve the product Iterate quickly, delivering thoughtful, incremental improvements that compound over time Contribute to the evolution of our onboarding and discovery systems as the product and customer base continue to grow About You Must have: 8+ years of experience building frontend or full-stack applications with a focus on product and user experience Strong fundamentals in JavaScript, HTML, and CSS; experience with modern frameworks like React or Next.js Track record of building and improving product experiences that drive user engagement and adoption Experience using data, analytics, or experimentation to guide product decisions Strong product sense and attention to detail—you care deeply about how things work and feel Ability to take ownership of ambiguous problem spaces and drive them to clear outcomes Excellent communication skills and experience collaborating across functions Curiosity about how developers work, and a desire to build tools that make them more effective Nice-to-have: Experience with full-stack JavaScript / TypeScript Experience with state management tools like MobX Experience working on B2B products, developer tools, or AI-powered experiences Experience working in a fast-paced, startup environment This role is based in the greater San Francisco area, and the reasonably estimated salary for this role ranges from $210,000 to $240,000 plus a competitive equity package. Actual compensation is based on the candidate's skills, qualifications, and experien ... (truncated, view full listing at source)