kustomer - Software Engineer, Product Engineering (Senior, Staff+)
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Requirements
• 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. • 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 understanding of software engineering principles, design patterns, and best practices for building scalable and maintainable code • Experience with RESTful API development, integrating with external services and databases • Familiarity with cloud platforms such as AWS or GCP, and experience with cloud services like AWS Lambda or Firebase • Familiarity with version control systems, such as Git, and collaborative development workflows • Ability to diagnose and debug complex issues, optimize application performance, and identify areas for improvement • Experience using AI tools to support software development tasks such as code generation, debugging, testing, or documentation • Hands-on experience with modern AI developer tools such as GitHub Copilot, Cursor, Claude Code, or similar • Your application will stand out if you have: • Familiarity with integrating AI or ML-powered capabilities into web applications, even at a prototype or feature level • Exposure to integrating third-party AI APIs or frameworks (e.g., OpenAI, Anthropic, LangChain, or vector databases like Pinecone) • Interest in exploring how AI can enhance developer workflows and improve product functionality • Experience with testing frameworks and methodologies (e.g., Jest, Playwright, Cypress, Mocha, Selenium) and a focus on code quality through unit testing and integration testing • Strong Proficiency in AWS services such as EC2, S3, Lambda, API Gateway, and CloudFormation • Strong understanding of NoSQL databases, particularly MongoDB, including data modeling and query optimization • Familiarity with containerization technologies like Docker and container orchestration frameworks like Kubernetes • Familiarity with CI/CD pipelines and automation tools for building, testing, and deploying applications • Familiarity with authentication and authorization mechanisms (e.g., OAuth, JWT) • Github activity showing thoughtful, relevant contributions • We encourage you to apply even if you don’t meet every requirement - experience comes in many forms, and we value potential, curiosity, and diverse perspectives • HIPAA Compliance • All roles at Kustomer may involve handling sensitive personal data.
Responsibilities
• Design, develop, and deploy robust and scalable full-stack web applications using Node.js, React, Golang, MongoDB, 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
Benefits
• $130K – $215K • Offers Equity • Autofill from resume • Upload your resume here to autofill key application fields. • Drop your resume here! • Parsing your resume. Autofilling key fields... • This job has application limits • Please Note: we have set up limits for applications for this role. It is in the SWE Full Stack group. The following limits apply to applications for all jobs within this group: • Candidates may not apply more than 1 time in any 45 day span for any job in the SWE Full Stack Group. • Candidates may not re-apply to the same role within 45 days if not presented with an offer • or drag and drop here • What server side programming languages are you most proficient in? • Will you now or in the future require sponsorship for work authorization? • Which U.S. state will you be working from in this role? • This optional survey helps Kustomer evaluate our Diversity, Equity and Inclusion efforts. Participation is voluntary. If you choose not to complete the survey, there is no effect your job application. The answers to these questions are not seen on an individualized basis and will only be used to assess our Diversity, Equity and Inclusion efforts. • What is your gender identity? • Another Gender Identity • I prefer not to answer • Which ethnicity(ies) do you identify with? Please select all that apply. • Asian or Asian American • Black or African American • Hispanic or Latino • Indigenous or Native American • Native Hawaiian or Other Pacific Islander • Which of the following communities do you belong to? Please select all that apply. • Person with disability • Refugee or Immigrant • None of the Above • Submit Application
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