Software Development Engineer III - Conversations
HighLevel
IndiaremotePosted 25 days ago
Skill Required
Software-EngineerFullstack-DevelopmentBackend-DevelopmentFrontend-DevelopmentAPI-EngineeringSoftware-DeveloperConversational-AI-EngineerLead-Software-Development-EngineerSoftware EngineerSoftware DeveloperDockerGitHub ActionsMicroservicesObservabilityEngineeringTypeScriptKubernetesautomationFirebaseTailwindNode.jsbuildingWebpackExpressMongoDBTestNGdesignGitJestRedisCI/CDCloudAPIsUnityVueFulltime
Key highlights
- 4+ years of professional engineering experience required
- Expertise in Node.js, TypeScript, and NestJS/Express required
- Remote-first global organization with 2,000+ team members across 10+ countries
Role overview
HighLevel is an AI-powered business operating system enabling agencies, entrepreneurs, and SMBs to build, automate, and scale their operations. The company supports over 1 million businesses across 150+ countries, processing billions of messages and API events daily with a resilient, scalable architecture. We are hiring a Senior Full Stack Engineer to design, build, and scale the backend systems and frontend interfaces for the Threads & Composer experience within HighLevel Conversations. The role focuses on backend and API design, data flows, and performance while owning the Vue 3 UI layer end-to-end, ensuring reliability and scalability for critical paths processing billions of messages monthly.
Responsibilities
- Backend ownership: Design and maintain Node.js/NestJS services for message storage, retrieval, and state sync
- API design: Build well-typed REST contracts for Threads and Composer operations
- Data layer work: Model and optimize MongoDB/Firestore schemas for high read/write volumes and atomic updates
- Scalability & resilience: Implement queues, caching, and rate limiting to handle burst traffic gracefully
- Frontend integration: Ship modular Vue 3 UIs that consume your APIs efficiently and handle realtime state updates
- Observability: Instrument logs, metrics, and traces to monitor latency, error rates, and throughput
- Testing discipline: Maintain high coverage across unit, integration, and contract tests
- Production ownership: Participate in on-call, debug incidents, and drive post-mortem action items to closure
- Collaboration & mentorship: Work closely with Product and Frontend leads while reviewing code and supporting junior engineers
Requirements
- 4+ years of professional engineering experience, preferably backend-heavy full-stack work
- Expert in Node.js and TypeScript; comfortable with NestJS or Express microservices
- Proficient in Vue 3 or similar modern frontend frameworks
- Strong understanding of API design, data modeling, and distributed system patterns
- Experience with GCP (or AWS), containerization, and CI/CD automation
- Hands-on with observability and production monitoring
Nice to have
- Pub/Sub or message queue experience
- Event-driven or domain-driven design background
Additional details
- 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 people: With 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 impact: Every 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
- Team & System Overview: The Conversations organization powers multi-channel communication across SMS, Email, WhatsApp, and DMs — handling over 2B messages each month. The Threads & Composer team owns the inbox and composer surfaces, and the backend services that deliver and store those interactions. You’ll work across Node.js microservices, GCP-based infra (GKE, Pub/Sub, Cloud Tasks), and MongoDB/Firestore storage layers, ensuring every message and UI state stays consistent, fast, and recoverable.
- Technical Environment: Backend: Node.js, TypeScript, NestJS / Express, REST APIs; Frontend: Vue 3, TypeScript, Pinia, Vite / Webpack, Tailwind; Storage: MongoDB, Firestore, Redis; Infra: GCP (GKE, Pub/Sub, Cloud Tasks, Stackdriver); CI/CD: GitHub Actions, Docker, Kubernetes; Testing: Jest, Vitest
- 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. We encourage you to review our Privacy Policy before submitting your application
- Originally posted on Himalayas