Staff Full Stack Engineer - Pay-i
- Location
- Seattle, WA · Hybrid
- Job type
- Full-time
- Level
- Lead / Staff
- Experience
- 7+ years
- Listed
- 23 days ago
Skills & highlights for this role
- JavaScript
- HTML5
- CSS
- OAuth2
- Docker
Also useful
- Highcharts
- Bootstrap
- Python
- AWS
- Azure
- GCP
Stated benefits & perks
- Health insurance
About the role
Staff Full Stack Engineer
The Opportunity
As our Staff Full Stack Engineer, you will be a crucial team member working closely with other Full Stack Engineers responsible for implementing our customer’s front-end experience. This is a unique opportunity to build with a deeply experienced team and GenAI leaders who like to innovate, experiment, and respond to customer feedback.
What You'll Do
- Are you excited about building an innovative product that tackles some of the most pressing financial challenges associated with leveraging Generative AI?
- As our Staff Full Sack Engineer, you will play a pivotal role in our mission.
- Your efforts will not only shape the user experience across our dashboards, websites, and products but also lay the foundation for our future growth.
Core Responsibilities
- Work with Pay-i's front-end and back-end engineers to rapidly deliver both prototype and production-quality products
- Create high-quality and enjoyable user experiences by building interfaces that are simple, intuitive, performant, and reliable
- Ensure high-quality graphic standards and brand consistency across all customer touchpoints
- Implement responsive design principles to ensure seamless display across various devices and screen sizes
- Refactor existing code to improve performance, structure, and readability
- Utilize state management libraries and patterns (e.g., Redux, Context API) to manage application state efficiently
- Implement front-end security best practices, such as input validation and secure coding standards
- Implement unit tests, integration tests, and end-to-end tests using appropriate testing frameworks and tools
- Perform code reviews and participate in peer code reviews to maintain code quality
- Inform our process for ensuring maintainability, quality, and performance of our entire front-end stack
Required Qualifications
- 7+ years of experience, and insatiable curiosity that has only grown during that time
- Deep expertise in modern client Javascript, HTML 5, CSS, and Browser Dev Tools
- Practical protocol knowledge of DNS, HTTP, and OAuth2
- Experience with git, bash, Docker, and Python web server development
- Excel at working in a fast-paced "bring up/tear down" environment
- Comfortable working in ambiguous environments and defining the path forward
- Proven experience building external customer-facing products
- Self-directed and self-aware, you have strong opinions and a stronger work ethic
- Cloud experience (AWS, Azure, and GCP)
Preferred Qualifications
- 10+ years of experience
- Highcharts, Bootstrap 5+
- Experience building a SPA and/or PWA in Javascript
- Full-stack engineering capabilities
What We Offer
- Top-of-the-line health insurance
- Discretionary time off
- Opportunity to grow with the company and manage a team
- Fast-paced, execution-focused environment with clear goals
- Collaboration with and mentoring from an extremely experienced founding team
Location
- Based in Bellevue, WA
- Local, in-office presence preferred
- Occasional hybrid arrangements possible
Why Pay-i?
- You'll join an extremely experienced team with a unique, patented value proposition and clear goals.
- We're well-funded, well-connected, and set up for success-now we need the right people to execute on our vision.
- As one of our early technical hires, you'll have complete ownership over the front-end architecture and the opportunity to shape our engineering culture as we grow.
About Pay-i
At Pay-i, we are solving one of enterprise AI's most critical challenges: proving ROI of GenAI investments. While global GenAI spend races toward $600B by 2028, 72% of CIOs cite measurement and forecasting as their top blocker, and only 13% of business leaders report significant enterprise-level value from GenAI. We are the only platform that transforms every model call, prompt, and agent step into CFO-grade metrics, providing enterprises the financial transparency to identify winning use cases, optimize costs, and prove impact.
Founded by ex-Microsoft leaders with 20+ years of experience each, Pay-i is a seed-stage company backed by five venture capital firms and executive/C-suite angels from Microsoft, Twilio, Zoom, and more. If you are passionate about selling products that fundamentally change how enterprises scale their AI initiatives, join us in bringing the system of record for GenAI ROI to market.
Equal opportunity and legal notices
Pay-i is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees.
From Pear VC's careers page, first listed on Rolev.ai on October 17, 2026. Rolev.ai is not the employer.
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Common questions
Where is the Staff Full Stack Engineer - Pay-i job at Pear VC located?
This Staff Full Stack Engineer - Pay-i position at Pear VC is located in Seattle, WA (Hybrid). Always check Pear VC's application page for specific state eligibility or relocation policies.
What qualifications are required for Staff Full Stack Engineer - Pay-i at Pear VC?
For the Staff Full Stack Engineer - Pay-i role, Pear VC highlights 7+ years of relevant experience; experience with JavaScript, HTML5, CSS, OAuth2, Docker. Rolev.ai can score your existing resume against these requirements and show any skill gaps before you apply.
How do I apply for the Staff Full Stack Engineer - Pay-i position at Pear VC?
This listing links directly to Pear VC's Ashby application page. You can apply directly on Pear VC's site, or use Rolev.ai to check your resume fit, generate a zero-hallucination tailored resume and cover letter for this posting, and autofill the Ashby application form in 1 click with the Rolev.ai Chrome extension. You always review the form and press Submit yourself.