Qualified is the Agentic Marketing Platform for B2B companies. With Piper the AI SDR Agent, Qualified offers a whole new way to grow inbound pipeline. Piper operates across both the website and email, working to engage website visitors, capture leads, and convert buyers into pipeline around the clock. Hundreds of the world’s leading brands—including Crunchbase, Asana, Box, and Grubhub—choose Qualified to increase lead conversions, generate more meetings, and improve efficiency within their inbound pipeline motion.OverviewJoin our Platform Engineering Team at Qualified as a Senior Platform Engineer and play a pivotal role in constructing and maintaining the critical systems that form the backbone of our operations. Our team is responsible for developing scalable, high-performance backend systems foundational to our product's functionality. Your goal will be to ensure these systems are robust, secure, and capable of supporting complex, real-time interactions with our customers, while maintaining high standards of reliability and performance.This is a technical role with high impact where you will drive the evolution of our engineering practices and architectural standards. You will provide technical guidance and mentor other developers to foster a culture of excellence within the organization. Beyond code, you will collaborate with cross-functional partners to ideate and execute platform initiatives that solve complex problems. Earning customer trust is paramount; therefore, you will focus on delivering business-critical solutions that directly contribute to our customers' success and ROIWhat You'll DoConstruct and maintain the critical systems that form the backbone of our operations.Develop and maintain scalable, high-performance backend systems foundational to our product's functionality.Continuously improve system performance, identify bottlenecks, and deploy optimizations for smooth operation at scale.Support and scale highly-available, highly-trafficked services essential for our customers' time-sensitive, business-critical needs.Evaluate new technologies and introduce new subsystems as the footprint and complexity of our product grows.Uphold high standards of quality through best practices in coding, testing, deployment, and proactive system health monitoring.Mentor other engineers, help build our team's culture, and set standards for engineering excellence.Embrace a culture of flexibility and efficiency, moving fast to capture the huge opportunity before us.What We're Looking ForExpert-level proficiency in AI-assisted software development (e.g., Claude, Cursor, etc); you are capable of leveraging these tools to significantly accelerate your output from day one.5+ years of experience in professional full-stack or backend software development.Proficiency in programming languages such as Ruby on Rails, Python, or Go.Proven experience working with backend programming languages and familiarity with SQL, RDBMS (PostgreSQL preferred), and data warehousing solutions.Experience with deploying and monitoring code on cloud platforms such as AWS, Google Cloud, or Azure.Strong software engineering practices (e.g. coding, unit testing, code reviews, design documentation).Strong debugging skills and experience solving complex technical problems.Experience in leading large-scale projects while guiding and mentoring other developers.A commitment to quality, demonstrated by rigorous testing and code review practices.B.S. or higher in Computer Science (or equivalent work experience).Why Join QualifiedFoundational Impact: You'll be a key member of our product team, helping to shape the future of our platform by integrating cutting-edge AI technologies.High-Growth Environment: Join us at a pivotal stage where you can establish best practices that will scale with our rapid growth and expansion.Cutting-Edge AI: Work on unique challenges related to AI-driven products and help define the future of B2B applications.Close Leadership Collaboration: Partner with leadership to ensure AI is integrated into our strategic decision-making.Career Growth: Lead and grow as a key member of the product team with opportunities to build and manage a team as the company expands.About QualifiedQualified is the Agentic Marketing platform for B2B companies around the world. Headquartered in San Francisco, Qualified delivers pipeline generation at scale with Piper the AI SDR for thousands of customers like Crunchbase, Demandbase, Greenhouse, Plaid, and Suse. Led by former Salesforce CMO Kraig Swensrud and former Salesforce Product SVP Sean Whiteley, Qualified boasts 1100+ 5-star reviews on G2 and is ranked #1 on the Salesforce AppExchange. Qualified is funded by Sapphire, Tiger Global, Norwest Venture Partners, Redpoint Ventures, and Salesforce Ventures. Visit qualified.com to learn more.One TeamWe’re all in this together with a shared goal: grow the business and each other. Work as a team, win as a team. Collaborate and strategize across departments to deliver A+ work. We are bold thought leaders that value creating a sense of belonging for all and celebrating our wins, big or small.Customer ObsessedPrioritize the customer above everything else. Build a product that our customers love. Establish ourselves as their trusted advisor and do “Whatever it takes” to make them successful. Prove the ROI. Only when our customers win do we win.Think Big & Move FastWe’re defining a new category and we have fierce competition. Fast-paced innovation is the name of the game. We look forward. We reimagine. We throw out new ideas. We test things. We move quickly. We challenge the norm. We don’t settle for status quo.On the heels of their Series C financing, Qualified is looking to grow the team so that they can do even more, even faster; they’re focused on delivering our customers more innovation, additional services, an expanded product portfolio, and even deeper ties into the Salesforce CRM platform. Qualified is looking for folks that are fired up about joining a fast-paced, fast-growing company that is doing big things.Diversity & InclusionQualified is committed to bringing together individuals from different backgrounds and perspectives. We strive to create an inclusive environment where everyone can thrive, feel a sense of belonging, and do great work together.We are proud to be an equal opportunity employer open to all qualified applicants regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, gender identity or expression, Veteran status, or any other legally protected status.