Demo

Senior Software Engineer, Frontend

Postscript
Phoenix, AZ Full Time
POSTED ON 4/10/2025
AVAILABLE BEFORE 5/9/2025
Trusted by more than 18,000 Shopify and Shopify Plus stores—like Brooklinen, Ruggable, True Classic and Dr. Squatch—Postscript gives ecommerce brands the tools they need to run a world-class SMS marketing program.

We're on a mission to make SMS the number-one revenue channel for ecommerce merchants by delivering an easy-to-use platform where they can grow their subscriber list, develop and test their messaging strategy, deliver excellent customer service, and drive sales and loyalty—all in one place. We believe SMS is the most important marketing and sales channel of the decade, and that vision drives everything we do.

Postscript was founded in 2018 as a 100% remote organization. With more than 250 employees (and counting!), we're backed by Greylock, Y Combinator, and other top investors.

Job Description

As a Senior Software Engineer you will use your passion and expertise for software engineering to create a best in class popup editor and enable brands to maximize their subscriber list growth. As a technical leader you will set the bar for the maintainability and performance of our systems. You will be given the autonomy to solve difficult technical problems, to grow professionally, and your work will directly impact our customers and Postscript's bottom line.

Engineers at Postscript have a high impact on their team and on the wider engineering org through project leadership, technical expertise, and decision-making. As a Senior Engineer you will guide your team in weighing technical constraints and business priorities to make the necessary trade-offs to deliver customer value. Our stack is currently React (TypeScript), Python (Flask), Go, AWS-managed architecture.

The Subscribers and Acquisition team also develops our internal SDK, which is built with Lit Web Components and TypeScript, a mix of Cloudflare and AWS-managed architecture, and Shopify App Extensions. Our SDK sees several billion requests a month to over 150 million unique users, and our popups API handles millions of requests daily.

Your passion for building great products, especially in early-stage companies, will lead you to have a significant impact on both our customers and business. In addition, you will have the opportunity to solve challenging problems and build out architecture and processes as we scale.

This position is fully remote, and Postscript has been a fully remote company since day 1

Primary duties

  • Build performant, reliable, and scalable frontend interfaces for merchants and their customers.
  • Take ownership and be creative with your solutions as you help deliver excellent products to our customers
  • Contribute to the health of the team through honest and direct feedback as we iterate and improve on our processes
  • Guide your team to make optimal technical and product design decisions
  • Identify and execute on points of scale in order to maximize throughput and efficiency
  • Mentor other engineers on best practices and growth opportunities
  • Be accountable for communicating transparently and proactively, defining scope, breaking down and estimating tasks, risk and change management

Requirements

  • Minimum 6 years professional software development experience
  • A proven career as a software engineer developing modern web applications with a focus on frontend architecture and user experience. Hands-on experience with React, TypeScript, and vanilla JavaScript
  • Deep understanding of state management patterns and libraries (e.g., React Context), modular component design, and front end testing frameworks (e.g. React Testing Library, Cypress)
  • Understanding of performance optimization, accessibility (WCAG, a11y), and responsive design best practices
  • Experience building modular, flexible architectures (maximizing readability and extensibility)
  • Excellent verbal and written communication skills
  • Experience building great products (high growth, early stage tech preferred)
  • Experience coaching and mentoring engineers

What We'll Love About You

  • Experience establishing best practices in development processes
  • Experience with or exposure to migration off a monolithic architecture a plus
  • Passion for early stage companies and the opportunity to be responsible for owning and improving a new, fast-growing code base
  • Great communicator and love helping others
  • Experience establishing best practices in development processes
  • Empathy for users
  • Strong attention to detail
  • Fearless in your pursuit of excellent results
  • Remote work experience is a plus

What You'll Love About Us

  • Salary range of USD $170,000-$200,000 base plus significant equity (we do not have geo based salaries)
  • High growth startup - plenty of room for you to directly impact the company and grow your career!
  • Work from home (or wherever)
  • Fun - We're passionate and enjoy what we do
  • Competitive compensation and opportunity for equity
  • Flexible paid time off
  • Health, dental, vision insurance

You are welcome here. Postscript is an ever-evolving place of equal employment for talented individuals.

Salary : $170,000 - $200,000

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