Software Engineer, Product Engineering; Senior

About Kustomer

Kustomer is the industry leading conversational CRM platform perfecting every customer experience. Built with intelligent tools such as AI and Automation, no code-configuration and a connected data platform that unifies data from multiple sources through a single timeline, Kustomer empowers businesses to operate with greater efficiency and deliver more personalized service to customers across any channel, making every interaction more meaningful and memorable.

Today, Kustomer is the core platform for some of the leading customer service brands like Sweetgreen, Starz, Vuori, Resy and Cotopaxi.

We’re looking for a Full Stack Software Engineer to join our Product Engineering team. The Product Engineering team builds the core experiences that define how users interact with Kustomer. This is a hands-on role focused on delivering real impact through high-quality, user-facing features. You will work across the stack, shipping new capabilities, improving performance, and contributing to the evolution of our architecture using technologies like Node.js,

React, Golang, and AWS. You will be expected to take full ownership of your work and collaborate closely with teammates in engineering, product, and design. AI plays an important role in how we build. You should be comfortable using AI tools to accelerate development, validate your work, and improve overall code quality. You will also contribute to AI-powered product features where they can meaningfully improve the end-user experience.

We seek engineers who combine technical excellence with genuine passion for their craft. Our ideal candidate is someone who approaches challenges with curiosity and intrinsic motivation; working on problems not just because they re assigned, but because they find the work genuinely engaging and meaningful. You should be someone who is naturally detail-oriented, professional, and brings a structured approach to your work while remaining open-minded and adaptable to new technologies and methodologies.

We value candidates who work hard and maintain high personal standards, driven by ambition to grow both technically and professionally. Most importantly, we re looking for engineers who are passionate about the technology space we operate in, particularly AI and automation. You should be excited about the problems we re solving and eager to contribute to innovative solutions that push the boundaries of what s possible.

If you re someone who takes ownership of your work, approaches challenges with intellectual curiosity, and thrives in environments where your passion for technology can directly impact product development, we d love to hear from you.

What You’ll Do:

• Design, develop, and deploy robust and scalable full-stack web applications using Node.js, React, Golang, Mongo
  
  DB, and AWS
• Collaborate with cross-functional teams, including product managers, designers, and other engineers, to understand project requirements and translate them into technical solutions
• Build efficient and reusable backend and frontend components and libraries
• Develop APIs and integrate with external services and databases, ensuring data integrity and security
• Write clean, maintainable, and well-documented code following best practices and coding standards
• Optimize application performance by implementing caching mechanisms, efficient algorithms, and database indexing
• Implement front-end interfaces with a focus on user experience, responsiveness, and accessibility
• Conduct thorough testing, including unit testing and integration testing, to ensure the quality and reliability of the application
• Collaborate with Infrastructure Engineers to deploy and maintain applications on AWS, ensuring high availability and scalability
• Monitor and troubleshoot production issues, providing timely resolutions and proactive bug fixes
• Stay up to date with the latest industry trends, tools, and technologies related to full-stack development and propose improvements to the development process
• Conduct code reviews, provide constructive feedback, and mentor junior developers to ensure code quality and continuous improvement
• Use AI tools to support day-to-day development, including writing, debugging, testing, and validating code
• Contribute to the design and implementation of AI-powered features where they enhance end-user experience or improve platform efficiency
• Stay current with emerging AI development tools and practices, and help the team adopt those that improve velocity and quality

• 7+ years of progressive software development experience and a Bachelor s degree in Computer Science, Software Engineering, or a related field (or equivalent experience)
• Proficiency in one of the modern server-side languages such as JavaScript, Go, Python, or Rust
• Experience in building web applications, preferably using React.js, and familiarity with front-end development principles including responsive design and cross-browser compatibility
• Deep…