Full Stack Engineer

About Humai

At Humai, we build AI products that transform how businesses and individuals work. Our portfolio includes Huscribe (voice-to-CRM automation for sales teams). We're an early-stage, fast-moving company scaling rapidly toward 10,000 customers. We value ownership, rapid iteration, and shipping features that users love.

We're a fast-moving, engineering-driven company that values innovation, ownership, and impact. Our culture emphasizes rapid iteration, data-driven decision making, and collaborative problem-solving.

About the Role

We're seeking an experienced Full Stack Engineer to join our team. While your primary focus will be building our next-generation enterprise SaaS platform, our product ecosystem is expanding. You will be responsible for developing core platform features, real-time data processing systems, and potentially contributing to our mobile initiatives.

What You'll Do

Responsibilities

Frontend Development

• Build responsive, high-performance web applications using Next.js 15 and React Server Components
• Implement real-time features using WebSockets/Socket.io for live data updates
• Create intuitive UI components using modern design systems (Shadcn/ui, Tailwind CSS)
• Develop interactive data visualizations and dashboards
• Ensure cross-browser compatibility and optimize for performance
• Implement client-side state management using Zustand and TanStack Query

Backend Development

• Design and develop RESTful APIs and GraphQL endpoints using FastAPI, NestJS or Spring Boot
• Build microservices architecture with proper service communication patterns
• Implement event-driven systems using Apache Kafka or similar message brokers
• Create robust data pipelines for multi-source data ingestion
• Develop workflow orchestration systems using Temporal or similar tools
• Design and optimize database schemas for PostgreSQL and time-series data

Integration & Data Engineering

• Build connectors for third-party API integrations (email, calendar, communication tools)
• Implement webhook systems for real-time external data capture
• Develop ETL pipelines for batch and stream processing
• Create data transformation and validation layers
• Build document parsing systems for various file formats
• Implement change data capture (CDC) for real-time synchronization

Mobile Development

• Design and build high-performance cross-platform mobile applications
• Translate web platform features into native mobile experiences for iOS and Android
• Integrate native device capabilities and platform-specific APIs
• Manage mobile application state and local storage for offline capabilities
• Ensure UI/UX consistency between web and mobile interfaces
• Collaborate on the deployment and release process for App Stores

Qualifications

Required Qualifications

Technical Skills

• Frontend: 4+ years with React, TypeScript, and modern JavaScript
• Backend: 4+ years with Python (FastAPI/Django), Node.js (NestJS/Express) or Java (Sprint Boot)
• Databases: Strong experience with PostgreSQL, Redis, and NoSQL databases
• Cloud: Hands-on experience with AWS, GCP, or Azure services
• DevOps: Proficiency with Docker, Kubernetes, and CI/CD pipelines
• Version Control: Advanced Git workflows and collaboration

Architecture & Design

• Experience building microservices and event-driven architectures
• Understanding of distributed systems and scalability patterns
• Knowledge of API design best practices (REST, GraphQL, gRPC)
• Familiarity with message queuing systems (Kafka, RabbitMQ, Redis Streams)
• Experience with real-time data processing and WebSocket implementations

Additional Requirements

• Strong understanding of data structures and algorithms
• Experience with authentication/authorization systems (OAuth 2.0, JWT)
• Knowledge of web security best practices and OWASP guidelines
• Familiarity with agile development methodologies
• Excellent problem-solving and debugging skills
• Strong written and verbal communication skills

Preferred Skills

• Experience with voice/audio processing APIs (WebRTC, Web Audio API)
• Advanced Flutter experience (architecture, native modules, performance profiling)
• Java/Spring ecosystem expertise (Hibernate/JPA, Spring Security, Spring Cloud)
• Knowledge of vector databases (Pinecone, Weaviate) for semantic search
• Familiarity with workflow automation platforms (n8n, Temporal, Airflow)
• Experience with time-series databases (TimescaleDB, InfluxDB)
• Understanding of event sourcing and CQRS patterns
• Contribution to open-source projects
• Experience with high-traffic, enterprise-scale applications
• Knowledge of compliance frameworks (GDPR, CCPA, SOC 2)

Ready to build the future of AI? Join us in creating the next generation of AI-powered products that make a real difference for users.