Full Stack Developer (equity only)

Revolutionizing Data Ownership Through Web3

Position Overview We're seeking a passionate Fultack Software Engineer to join Sentiment on a part-time basis (20 hours/week, equity-only). Help us build user-facing applications and robust backend systems that put data ownership back in users' hands while creating the next generation of decentralized survey and analytics platforms.

About Sentiment Sentiment is a Web3-native data marketplace where users control, monetize, and earn from their data. We're solving the $3.1 trillion data quality problem by creating authenticated, user-owned datasets through our tokenized survey platform. Our users become "datapreneurs" - earning rewards for their insights while maintaining complete data sovereignty.

The Challenge You'll develop both frontend and backend components of a platform that handles:

•    Interactive survey creation and response collection interfaces

•    User authentication and profile management systems

•    Data visualization dashboards and analytics reporting

•    Token-based reward tracking and user earnings displays

•    Real-time notifications and user engagement features

•    Secure API endpoints serving web and mobile applications

What You'll Build

•    Frontend Applications: Develop responsive React.js interfaces for survey creation, data marketplace browsing, user dashboards, and analytics visualization

•    Backend Services: Build scalable Node.js APIs handling user management, survey logic, data processing, and marketplace transactions

•    Database Architecture: Design and optimize PostgreSQL schemas for survey data, user profiles, transactions, and analytics

•    Integration Layer: Connect frontend applications with blockchain services and third-party APIs

•    User Experience: Create intuitive interfaces that make complex Web3 concepts accessible to everyday users

Required Experience

•    5+ years of software development experience with full-stack applications

•    Strong proficiency in Node.js for backend development and API creation

•    Expert-level React.js skills with modern hooks, state management, and component architecture

•    Advanced PostgreSQL experience including query optimization, database design, and performance tuning

•    Experience with RESTful API design and implementation

•    Proficiency with Git version control and collaborative development workflows

Preferred Qualifications

•    Experience with modern JavaScript/TypeScript development

•    Knowledge of React ecosystem tools (Redux, Next.js, testing libraries)

•    Familiarity with cloud platforms (AWS, Google Cloud, or similar)

•    Understanding of authentication systems and security best practices

•    Experience with data visualization libraries (D3.js, Chart.js, or similar)

•    Basic understanding of blockchain concepts and Web3 technologies

•    Background in survey platforms, data analytics, or marketplace applications

Why Join Sentiment?

•    Equity opportunity in a venture tackling a multi-trillion dollar market

•    Technical ownership role building user-facing products from the ground up

•    Mission-driven work democratizing data ownership and creating fair compensation for users

•    Modern tech stack with cutting-edge frontend and backend technologies

•    Remote-first culture with a passionate, experienced team

• Opportunity to learn Web3 technologies while leveraging your fullstack expertise