Senior Software Engineer

About the job

About the Role We’re looking for a Senior Software Engineer to join our Course Customizations Team, which enables over 200,000+ businesses and creators to deliver personalized, branded learning experiences to more than 1 million monthly active users. This team powers customization across courses, lessons, checkouts, and upsells, offering multiple themes and templates that help creators tailor every stage of the learner journey to their brand and audience. As a Senior Engineer, you’ll design and scale the systems that make customization both powerful and safe - covering dynamic theming, layout configuration, template management, and secure data handling for creator-defined content and transactions. Responsibilities • Develop and maintain reusable UI components, aligning with Highlevel’s design system to ensure consistency across web and mobile applications. • Enhance load times, ensure smooth interactions, and improve rendering efficiency by minimizing bottlenecks, leveraging techniques like lazy loading, code splitting, and caching strategies to support 1M+ users. • Guide frontend engineers by sharing best practices in performance tuning, UI development, and modern frameworks (e.g., React, Vue.js), fostering a culture of technical excellence. • Identify and resolve UI/UX bottlenecks, accessibility gaps, security vulnerabilities, and frontend technical debt to deliver a polished user experience. • Contribute to the design and development of backend APIs to support frontend functionality, ensuring efficient data flow and integration with application features. • Gain deep insights into the product, customer needs, and competitors to enhance user experience and align features with creator and learner expectations. • Partner with designers, product managers, and backend engineers to deliver high-quality, cohesive user experiences across web and mobile platforms. • Keep up with the latest frontend technologies (e.g., WebAssembly, modern JavaScript frameworks) and advocate for tech stack improvements to enhance performance and developer productivity. • Utilize AI-driven tools and frameworks to enhance frontend experiences, such as personalizing user interfaces, optimizing content delivery, or automating UI testing and performance analysis. Requirements • 5+ years of Full-Stack Development Experience with a strong focus on Frontend. • Proficiency in modern JavaScript frameworks (Vue.js, React, or Angular) and Node.js for building scalable, high-performance applications. • Strong knowledge of HTML, CSS, TypeScript, and modern frontend build tools (Webpack, Vite, etc.). • Deep understanding of browser rendering, performance profiling, lazy loading, caching strategies, and optimization techniques. • Experience optimizing high-traffic, large-scale applications for performance and scalability. • Experience with monitoring and debugging tools (e.g., Lighthouse, Sentry, Web Vitals). Understanding of databases (e.g., MySQL, MongoDB) and caching strategies (e.g., Redis). Comfortable working with RESTful APIs, GraphQL, backend integrations and Cloud Platforms. • Strong problem-solving skills, ownership mindset, and ability to work in a cross-functional team. Nice to Have: • Experience with AI tools and contributions to open-source projects, internal platforms, or engineering blogs.

Requirements

• Full-Stack Development
• JavaScript
• React
• Vue.js
• Node.js
• HTML
• CSS
• TypeScript

Preferred Technologies

• Full-Stack Development
• JavaScript
• React
• Vue.js
• Node.js
• HTML
• CSS
• TypeScript

About the company

HighLevel is a cloud-based, all-in-one white-label marketing and sales platform that empowers marketing agencies, entrepreneurs, and businesses to elevate their digital presence and drive growth. We are proud to support a global and growing community of over 2 million businesses, from marketing agencies to entrepreneurs to small businesses and beyond.