The Senior Software Engineer will design and build scalable systems for directory search and profile management, collaborating across teams to enhance user experience and performance.
About HighLevel
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. Our platform empowers users across industries to streamline operations, drive growth, and crush their goals.
HighLevel processes over 15 billion API hits and handles more than 2.5 billion message events every day. Our platform manages 470 terabytes of data distributed across five databases, operates with a network of over 250 micro-services, and supports over 1 million domain names.
Our People
With over 1,500 team members across 15+ countries, we operate in a global, remote-first environment. We are building more than software; we are building a global community rooted in creativity, collaboration, and impact. We take pride in cultivating a culture where innovation thrives, ideas are celebrated, and people come first, no matter where they call home.
Our Impact
Every month, our platform powers over 1.5 billion messages, helps generate over 200 million leads, and facilitates over 20 million conversations for the more than 2 million businesses we serve. Behind those numbers are real people growing their companies, connecting with customers, and making their mark - and we get to help make that happen.
Learn more about us on our YouTube Channel or Blog Posts
About the Role
We’re looking for a Senior Software Engineer to join our Directories Team, which is a hybrid of Upwork and Contra. The Directories platform will serve as a trusted space where businesses can post projects, discover and collaborate with Certified Admins, and where Admins can showcase verified credentials, portfolios, and client success stories.
As a Senior Engineer, you’ll design and build scalable systems for directory search, profile management, credential verification, and SEO-driven discovery. You’ll work across the stack to deliver performant user experiences, develop APIs that connect creators and customers, and integrate secure verification workflows. Collaborating closely with product, infrastructure, and data teams, you’ll help shape the foundation of a trusted, high-performing platform that enhances visibility and credibility for businesses and creators alike.
Responsibilities
Build and extend backend APIs and microservices in Node.js/NestJS to support search, filtering, credential validation, and SEO-driven discovery.
Architect and manage data models and indexing strategies (e.g., Elasticsearch, PostgreSQL, MongoDB) to ensure fast, accurate directory lookups and filtering.
Design, build, and maintain scalable directory and listings systems that power discovery, search, and credential verification across millions of records.
Develop and maintain reusable UI components aligned with HighLevel’s design system to ensure a consistent, accessible experience across web and mobile.
Implement responsive, high-performance frontend experiences, optimizing load times, rendering efficiency, and accessibility for diverse devices and network conditions.
Integrate analytics and instrumentation to measure engagement, conversion, and search performance, translating insights into product and UX improvements.
Collaborate with product managers, designers, and cross-functional engineers to deliver cohesive, full-stack features that connect businesses, creators, and learners.
Identify and resolve UI/UX bottlenecks, accessibility gaps, and security issues to deliver a trusted and polished experience.Use AI-driven tools and frameworks to improve development workflows, automate testing, and enhance search and recommendation precision.
Stay current with emerging frontend frameworks, backend performance techniques, and scalable web architecture patterns—sharing insights with the broader team.
Requirements
4+ years of full-stack development experience with a strong focus on frontend engineering.
Proficiency in Node.js/NestJS for building scalable, high-performance web applications and in Vue.js / React, /Angular
Strong knowledge of HTML, CSS, TypeScript, and modern frontend build tools such as Webpack, Vite, or similar.
Deep understanding of browser rendering, performance profiling, lazy loading, caching strategies, and other optimization techniques for large-scale apps.
Experience developing RESTful APIs and backend integrations, with solid understanding of API design, data flow, and security best practices.
Hands-on experience with databases (e.g., MySQL, PostgreSQL, MongoDB) and caching systems (e.g., Redis) for handling high-volume, low-latency queries.
Proven ability to optimize high-traffic, content-heavy applications for performance, scalability, and SEO.
Familiarity with search and indexing technologies (e.g., Elasticsearch, Atlas Search) and analytics tracking for engagement and conversion.
Comfortable working with monitoring and debugging tools such as Lighthouse, Sentry, Web Vitals, or Grafana to ensure performance and stability.
Strong problem-solving skills, ownership mindset, and ability to collaborate in a cross-functional team.
Nice to Have: Experience using AI tools for development, recommendation systems, or contributions to open-source projects, internal tooling, or engineering blogs.
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 record keeping, 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.
Top Skills
Angular
CSS
Elasticsearch
HTML
JavaScript
MongoDB
MySQL
Nestjs
Node.js
Postgres
React
Redis
Typescript
Vite
Vue
Webpack
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