Full Stack Developer (Node.js, React, PostgreSQL)

United States Digital Space LLC; United States; Hybrid; USD 3,117 - 4,156; Full time

Benefits offered by this job

Hybrid work model

Exposure to AI tooling

Competitive compensation

Job summary

United States Digital Space LLC is seeking a Full Stack Developer to join our core product engineering team working on Dailyx. You will design, build, and maintain features across our web application and backend services using Node.js (Express), React, and PostgreSQL.

You will own features end-to-end—from API design and database schema to delivering a polished frontend experience—with working knowledge of AI/LLM APIs and their integration into product workflows.

Qualifications

• 1–1.5 years of professional Full Stack development experience.
• Experience with Agentic AI capabilities or related projects.
• Proficiency in Node.js/Express and React with PostgreSQL.
• Experience designing and consuming RESTful APIs and security basics.
• Familiarity with cloud platforms and CI/CD is a plus.

Responsibilities

• Design, develop, and maintain scalable web apps using Node.js/Express and React.
• Model relational data in PostgreSQL with optimized queries.
• Develop and integrate RESTful APIs and webhooks.
• Integrate AI/LLM APIs into product features and workflows.
• Write clean, tested code and participate in reviews.
• Collaborate with product, design, and QA to translate requirements.
• Improve performance, scalability, and security across the stack.
• Debug production issues and contribute to architectural decisions.
• Keep up with AI/LLM tooling and evolving tech.

Skills

Node.js

Express.js

React.js

PostgreSQL

API design

AI/LLM integration

Git workflows

REST APIs

Web security

Education

Bachelor's degree in CS or related field

Tools

Docker

CI/CD basics

Job description

Full Stack Developer (Node.js, React, PostgreSQL)

Role Overview

We are looking for a Full Stack Developer to join our core product engineering team working on Dailyx.

You will design, build, and maintain features across our web application and backend services using Node.js (Express), React, and PostgreSQL. The ideal candidate is comfortable owning features end-to-end—from API design and database schema to delivering a polished frontend experience—and has working knowledge of AI/LLM APIs and their integration into product workflows.

Key Responsibilities

• Design, develop, and maintain scalable web applications using Node.js (Express) and React.
• Build and optimize relational data models, queries, and migrations in PostgreSQL.
• Develop and integrate RESTful APIs and third-party/webhook-based integrations.
• Integrate AI/LLM APIs (such as OpenAI, Anthropic, or similar) into product features, including automation, content generation, and conversational workflows.
• Write clean, maintainable, and well-tested code while participating in code reviews.
• Leverage Agentic AI tools such as Claude Code or OpenAI Codex to accelerate development, improve code quality, and streamline engineering workflows.
• Collaborate with product managers, designers, and QA teams to translate business requirements into technical solutions.
• Optimize application performance, scalability, and security across the technology stack.
• Troubleshoot, debug, and resolve production issues in a timely manner.
• Contribute to architectural decisions, technical documentation, and engineering best practices.
• Stay current with emerging tools and frameworks, particularly within the AI/LLM ecosystem, and evaluate their applicability to the product.

Required Skills & Experience

• 1–1.5 years of professional experience as a Full Stack Developer.
• Experience developing products using Agentic AI capabilities or a demonstrable project/portfolio built using the same.
• Strong proficiency in Node.js and Express.js.
• Strong proficiency in React.js, including Hooks, state management, and component architecture.
• Solid experience with PostgreSQL, including schema design, indexing, query optimization, and complex queries.
• Experience designing and consuming RESTful APIs.
• Familiarity with API authentication methods such as OAuth, JWT, and API Keys.
• Working knowledge of AI/LLM APIs, including prompt design, API integration, response handling, and basic rate-limit/error handling.
• Familiarity with Git and collaborative development workflows, including branching, pull requests, and code reviews.
• Understanding of asynchronous programming, microservices, or event-driven architecture is an advantage.
• Basic knowledge of cloud platforms (AWS, GCP, or Azure) and CI/CD pipelines is an advantage.
• Good understanding of web security practices, performance optimization, and scalable system design.

Good to Have

• Experience with messaging platforms, chatbot solutions, or conversational interfaces.
• Experience with Docker and containerized deployments.
• Exposure to TypeScript.
• Experience working in an Agile/Scrum environment.

Soft Skills

• Strong problem-solving skills and attention to detail.
• Ability to work independently and take ownership of features end-to-end.
• Good communication and cross-functional collaboration skills.
• Curiosity and willingness to learn emerging technologies, especially in the AI domain.

Qualifications

• Bachelor's degree in Computer Science, Engineering, or a related field (or equivalent practical experience).

What We Offer

• Opportunity to work on a high-growth SaaS product with real-world scale.
• Collaborative, engineering-driven culture with ownership and autonomy.
• Exposure to modern AI tooling and integrations as part of core product development.
• Competitive compensation and growth opportunities.

Pay: ₹300,000.00 - ₹400,000.00 per year

Application Question(s):

• How many years of professional experience do you have as a Full Stack Developer?
• Do you have hands-on experience with Node.js (Express), React.js, and PostgreSQL in a production environment?
• Do you have experience integrating AI/LLM APIs (such as OpenAI, Anthropic, or similar) into applications or products?
• What is your current CTC (LPA)?
• What is your expected CTC (LPA)?
• What is your current notice period?
• Are you available to work full-time in an offline role in Mumbai?

Work Location: Hybrid remote in Ghatkopar West, Mumbai, Maharashtra