Software Development Engineer III - Contacts (Frontend)
About HighLevel:
HighLevel is an AI-powered business operating system that gives agencies, entrepreneurs and SMBs the infrastructure to build, automate and scale. Today, HighLevel supports SMBs across 150+ countries, fueling community-driven growth rooted in real customer outcomes.To date, businesses operating on HighLevel have generated over $7 billion in ecosystem value, demonstrating the impact of shared infrastructure at scale. By centralizing conversations, automation and intelligence into one system, we help businesses move faster, reduce complexity and execute efficiently.Behind the platform, HighLevel powers more than 4 billion API hits and 2.5 billion message events daily.
With 250 terabytes of distributed data, 250+ microservices and over 1 million domain names supported, our architecture is built for performance, resilience and long-term scalability.
Our peopleWith over 2,000 team members across 10+ countries, HighLevel operates as a global, remote-first organization built for speed and ownership. We value initiative, clarity and execution, creating space for ambitious people to build systems that support millions of businesses worldwide. Here, innovation thrives, ideas are celebrated and people come first, no matter where they call home.
Our impactEvery month, HighLevel enables more than 1.5 billion messages, 200 million leads and 20 million conversations for the more than 1 million businesses we support. Behind those numbers are real people building independence, expanding opportunity and creating measurable impact. We’re proud to be a part of that.Learn more about us on our YouTube Channel or Blog Posts
About the Role
The Contacts Team is central to our CRM platform, powering contact records, segmentation, filters, and views used across all product surfaces. As a Frontend Developer, you will focus on building high-performance, scalable, and intuitive user interfaces that handle large datasets and complex workflows. You will work closely with backend, product, and design teams to deliver seamless user experiences at scale.
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Responsibilities:
Frontend Engineering
Build and maintain high-quality, scalable UI components using Vue.js (or React/Angular)
Develop responsive, accessible, and performant interfaces for handling large datasets (tables, filters, search, etc.)
Optimize rendering performance for high-volume data interactions
UI/UX & Performance
Improve user experience through fast load times, smooth interactions, and intuitive workflows
Implement lazy loading, virtualization, and efficient state management
Ensure cross-browser compatibility and mobile responsiveness
Architecture & State Management
Design clean, modular, and reusable frontend architectures
Work with modern state management tools (Pinia, Vuex, Redux)
Collaborate on API contracts and data flow optimization
Collaboration
Work closely with Product Managers, Designers, and Backend Engineers
Translate product requirements into scalable frontend solutions
Participate in design discussions and provide technical input
Quality & Best Practices
Write clean, maintainable, and testable code
Follow best practices for accessibility (a11y) and internationalization (i18n)
Perform code reviews and maintain high engineering standards
Ownership
Take ownership of features from development to deployment
Debug and resolve UI/UX issues in production
Continuously improve frontend performance and reliability
Requirements:
5+ years of frontend development experience
Strong proficiency in React/Vue, TypeScript, HTML, Tailwind CSS
Experience with micro frontend architecture
Experience with js builder like webpack, rollup
Experience building data-heavy applications (tables, filters, dashboards)
Strong understanding of frontend performance optimization techniques
Familiarity with REST APIs and async data handling
Experience with state management libraries (Pinia, Vuex, Redux)
Understanding of component-based architecture and reusable design systems
Knowledge of accessibility (a11y) and responsive design principles and Strong debugging and problem-solving skills
Our Tech Stack:
Frontend: Vue 2, Vue 3, Pinia, TypeScript, Vite, Micro Frontend
Backend (collaboration): Node.js, Nest.js, REST APIs
Infrastructure: Docker, Kubernetes, GCP
Other: Accessibility (a11y), Internationalization (i18n)
Nice to Have:
Experience with ElasticSearch-based UI (search, filters)
Exposure to microservices-based backend systems
Familiarity with CI/CD pipelines and testing frameworks
Experience with real-time UI updates (WebSockets, event-driven UI)
What You’ll Work On:
High-scale CRM UI handling millions of contacts
Advanced filtering, segmentation, and search experiences
Performance-critical interfaces used across the platform
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EEO Statement:
The company is an Equal Opportunity Employer. As an employer subject to affirmative action regulations, we invite you to voluntarily provide the following demographic information. This information is used solely for compliance with government recordkeeping, reporting, and other legal requirements. Providing this information is voluntary and refusal to do so will not affect your application status. This data will be kept separate from your application and will not be used in the hiring decision.
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