Senior Product Designer

Merge API•San Francisco, CA

40d•$175,000 - $190,000•Onsite

About The Position

Merge is the leading provider of agentic tools and customer-facing integrations for frontier LLMs, Fortune 500 organizations, and B2B SaaS companies. Our platform offers two core products: Merge Unified, which enables businesses to add hundreds of integrations to their products with a single API, and Merge Agent Handler, which empowers AI agents with secure access to thousands of third-party tools. Merge's enterprise-grade platform handles the entire integration lifecycle, from authentication and security to monitoring and maintenance. Thousands of companies trust Merge to accelerate product development, unblock sales, reduce customer churn, and save engineering resources—allowing them to focus on their core product. Design excellence is central at Merge—it shapes how developers adopt us, how customers evaluate us, and how we execute at speed. We are looking for a Senior Product Designer to serve as the design authority for our platform. This role will be the most senior individual designer at Merge, responsible for navigating our most ambiguous challenges and ensuring our craft remains world-class as we scale. In this role, you will: Set the North Star: Define the long-term design vision for Merge’s core platform, ensuring individual features roll up into a cohesive, elite user experience Navigate ambiguity: Take high-level business goals and "fuzzy" problems and turn them into concrete, elegant designs and frameworks that uplevel our products and delight our customers Be a cultural force: Act as a highly opinionated advocate for the user, pushing the entire organization to uphold an exceptionally high bar for polish and simplicity Operate with high agency: Identify gaps in our product or process before they become issues and drive the solutions to completion without needing a roadmap handed to you Scale the craft: Move beyond individual screens to build the systems, standards, and mentoring rituals that level up the whole team This is a role for a designer who wants to leave fingerprints on a fast-growing product and scale design practice inside a company that holds the bar high.

Requirements

Mastery of the craft: 7+ years of product design experience, with a significant portion spent leading design for complex, technical B2B or developer-facing products
Proven staff-level impact: A portfolio demonstrating that you have led "zero-to-one" initiatives and scaled design systems that influenced the entire product's trajectory
Exceptional communication: The ability to command a room, tell a compelling story around design decisions, and disagree/commit effectively with executive leadership
Technical fluency: Deep understanding of how your designs are implemented; you speak the language of engineers and understand the constraints of APIs and data structures
Systems thinking: You don't just design pages; you design logic, states, and interconnected systems that work at scale
High-energy ownership: Experience thriving in high-growth, in-office environments where you are expected to be a self-starter who defines their own work

Responsibilities

Drive strategy: Partner with founders and leadership across the whole company to translate business strategy into a tangible product roadmap through high-fidelity prototyping and vision work
Own the system: Architect and evolve our design system to ensure it doesn't just provide components, but enforces a philosophy of speed, consistency, and "Merge-level" polish
Solve the hardest problems: Take ownership of the most complex, multi-sided technical workflows in our platform, simplifying them into intuitive experiences for developers
Evangelize design excellence: Relentlessly "sweat the pixels" and hold cross-functional peers accountable to a standard of excellence that distinguishes Merge from the competition
Direct research & validation: Lead deep-dive customer research and usability testing to uncover friction points and validate core product hypotheses
Mentor and multiply: Raise the bar for the entire design team through rigorous design reviews, mentorship, and by defining "what good looks like" at Merge