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.

Responsibilities::
Frontend Engineering

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Build and maintain high-quality, scalable UI components using Vue.js (or React/Angular)

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Develop responsive, accessible, and performant interfaces for handling large datasets (tables, filters, search, etc.)

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Optimize rendering performance for high-volume data interactions

UI/UX & Performance

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Improve user experience through fast load times, smooth interactions, and intuitive workflows

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Implement lazy loading, virtualization, and efficient state management

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Ensure cross-browser compatibility and mobile responsiveness

Architecture & State Management

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Design clean, modular, and reusable frontend architectures

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Work with modern state management tools (Pinia, Vuex, Redux)

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Collaborate on API contracts and data flow optimization

Collaboration

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Work closely with Product Managers, Designers, and Backend Engineers

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Translate product requirements into scalable frontend solutions

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Participate in design discussions and provide technical input

Quality & Best Practices

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Write clean, maintainable, and testable code

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Follow best practices for accessibility (a11y) and internationalization (i18n)

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Perform code reviews and maintain high engineering standards

Ownership

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Take ownership of features from development to deployment

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Debug and resolve UI/UX issues in production

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Continuously improve frontend performance and reliability

Requirements::
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5+ years of frontend development experience

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Strong proficiency in React/Vue, TypeScript, HTML, Tailwind CSS

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Experience with micro frontend architecture

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Experience with js builder like webpack, rollup

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Experience building data-heavy applications (tables, filters, dashboards)

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Strong understanding of frontend performance optimization techniques

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Familiarity with REST APIs and async data handling

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Experience with state management libraries (Pinia, Vuex, Redux)

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Understanding of component-based architecture and reusable design systems

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Knowledge of accessibility (a11y) and responsive design principles and Strong debugging and problem-solving skills

Our Tech Stack::
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Frontend: Vue 2, Vue 3, Pinia, TypeScript, Vite, Micro Frontend

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Backend (collaboration): Node.js, Nest.js, REST APIs

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Infrastructure: Docker, Kubernetes, GCP

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Other: Accessibility (a11y), Internationalization (i18n)

Nice to Have::
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Experience with ElasticSearch-based UI (search, filters)

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Exposure to microservices-based backend systems

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Familiarity with CI/CD pipelines and testing frameworks

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Experience with real-time UI updates (WebSockets, event-driven UI)

What You’ll Work On::
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High-scale CRM UI handling millions of contacts

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Advanced filtering, segmentation, and search experiences

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Performance-critical interfaces used across the platform

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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