Senior Software Engineer, Growth Monetization Web

Block is one company built from many blocks, all united by the same purpose of economic empowerment. The blocks that form our foundational teams - People, Finance, Counsel, Hardware, Information Security, Platform Infrastructure Engineering, and more - provide support and guidance at the corporate level. They work across business groups and around the globe, spanning time zones and disciplines to develop inclusive People policies, forecast finances, give legal counsel, safeguard systems, nurture new initiatives, and more. Every challenge creates possibilities, and we need different perspectives to see them all. Bring yours to Block.
The Role
We are on a mission to make commerce easy and accessible for businesses of all sizes. The Monetization team plays a critical role in this mission by increasing the adoption and utilization of Square's products. Whether it's through smarter pricing experiences, plan comparisons, or in-app upgrade paths, our work helps Sellers grow and enables success in driving business outcomes.
As a Senior Engineer, you'd lead initiatives to build elegant, user-friendly, and accessible experiences that directly influence product adoption and monetization. You'll join a thoughtful and collaborative team where product, data, design, and engineering work closely to deliver high impact outcomes. You'll lead the charge in crafting reusable components, driving architectural decisions, and mentoring others. You'll have the opportunity to directly influence pricing strategy, drive meaningful business outcomes, set the standards for technical excellence and help scale a world-class frontend engineering culture. This is a hands-on engineering role for someone who enjoys writing code, building elegant and impactful user experiences, and partnering closely with product, design, and other teams to bring new experiences to life.
You Will

• Design and implement complex, user-facing features and frontend architectures that scale.
• Build and scale React-based applications with high standards for performance, maintainability, and accessibility.
• Lead critical engineering initiatives that impact product monetization, conversion, and feature adoption.
• Collaborate with cross-functional teams to rapidly prototype and iterate on ongoing initiatives
• Define the technical strategy and raise the standards on best practices across front-end architecture, performance, accessibility, testing and maintainability
• Explore and implement emerging technologies, including AI-assisted automations to enhance our development workflows
• Mentor engineers across the teams, evolving and instilling a culture of high quality and high velocity work leading by example

You Have

• 8+ years of industry experience building for the web, with proven record of successfully delivering large features
• Deep expertise in React and modern frameworks - the kind of knowledge that comes from building and maintaining large-scale React applications
• Significant experience working with component libraries and design systems. You've worked to maintain an existing one and/or helped build one from the ground up
• Experience building high-quality, production-level interfaces at scale
• Strong collaboration, communication, and ownership
• Strong experience working cross-functionally with multiple stakeholders
• Curiosity about emerging technologies and their practical applications in system workflows

Even Better

• Experience leading frontend architecture for platform-wide components or frameworks.
• Familiarity with A/B testing and experimentation tooling.
• Understanding of business and growth metrics, with the ability to translate them into UX and engineering strategies.
• Strong commitment to web accessibility and experience implementing accessibility guidelines in applications
• Familiarity with GraphQL, Redux (or similar state management libraries), and design systems like Storybook.
• Previous work in SaaS, subscriptions, or pricing applications would be a plus

Technologies We Use and Teach

• React, GraphQL
• Design systems and component libraries (e.g. Storybook)
• A/B testing and analytics platforms
• CI/CD pipelines, Webpack/Vite, feature flags

We're working to build a more inclusive economy where our customers have equal access to opportunity, and we strive to live by these same values in building our workplace. Block is an equal opportunity employer evaluating all employees and job applicants without regard to identity or any legally protected class. We will consider qualified applicants with arrest or conviction records for employment in accordance with state and local laws and "fair chance" ordinances. We believe in being fair, and are committed to an inclusive interview experience, including providing reasonable accommodations to disabled applicants throughout the recruitment process. We encourage applicants to share any needed accommodations with their recruiter, who will treat these requests as confidentially as possible. Want to learn more about what we're doing to build a workplace that is fair and square? Check out our I+D page .
Block takes a market-based approach to pay, and pay may vary depending on your location. U.S. locations are categorized into one of four zones based on a cost of labor index for that geographic area. The successful candidate's starting pay will be determined based on job-related skills, experience, qualifications, work location, and market conditions. These ranges may be modified in the future.
To find a location's zone designation, please refer to this resource . If a location of interest is not listed, please speak with a recruiter for additional information.
Block takes a market-based approach to pay, and pay may vary depending on your location. U.S. locations are categorized into one of four zones based on a cost of labor index for that geographic area. The successful candidate's starting pay will be determined based on job-related skills, experience, qualifications, work location, and market conditions. These ranges may be modified in the future.
To find a location's zone designation, please refer to this resource . If a location of interest is not listed, please speak with a recruiter for additional information.
Zone A:
$217,800 - $326,800 USD
Zone B:
$207,000 - $310,400 USD
Zone C:
$196,100 - $294,100 USD
Zone D:
$185,200 - $277,800 USD
Use of AI in Our Hiring Process
We may use automated AI tools to evaluate job applications for efficiency and consistency. These tools comply with local regulations, including bias audits, and we handle all personal data in accordance with state and local privacy laws.
Contact us at [email protected] with hiring practice or data usage questions.
Every benefit we offer is designed with one goal: empowering you to do the best work of your career while building the life you want. Remote work, medical insurance, flexible time off, retirement savings plans, and modern family planning are just some of our offering. Check out our other benefits at Block.
Block, Inc. (NYSE: XYZ) builds technology to increase access to the global economy. Each of our brands unlocks different aspects of the economy for more people. Square makes commerce and financial services accessible to sellers. Cash App is the easy way to spend, send, and store money. Afterpay is transforming the way customers manage their spending over time. TIDAL is a music platform that empowers artists to thrive as entrepreneurs. Bitkey is a simple self-custody wallet built for bitcoin. Proto is a suite of bitcoin mining products and services. Together, we're helping build a financial system that is open to everyone.