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Full Stack Developer External

Mastrok Technologies
💼 Full-time
🏢 Remote
📊 Mid Level
📅 Posted: Nov 25, 2025
👁️ 15 clicks

Job Description

We are seeking an experienced and versatile Full Stack Developer with strong expertise in JavaScript, Node.js, and React.js to design, develop, and maintain scalable web applications. The ideal candidate should be proficient in both frontend and backend technologies, experienced with cloud infrastructure (AWS), and comfortable working with databases (PostgreSQL preferred). You will play a key role in building robust APIs, integrating third-party services, and ensuring applications are secure, high-performing, and user-friendly.

Key Skills Required:

  • Application Development:

  • Design, develop, and maintain scalable web applications using React.js, Node.js, and Next.js.

  • Write clean, reusable, maintainable, and efficient code for both frontend and backend systems.

  • Database & APIs:

  • Develop and integrate RESTful APIs / GraphQL.

  • Work with PostgreSQL (preferred) or other relational databases.

  • Cloud & Infrastructure (AWS):

  • Deploy and manage applications on AWS (EC2, S3, Lambda, CloudFront, etc.).

  • Implement and manage serverless functions, cloud functions, and webhooks.

  • Optimize cloud infrastructure for performance, scalability, and cost efficiency.

  • Integration & Automation:

  • Handle third-party API integrations (e.g., payments, authentication, notifications).

  • Set up webhooks for automated workflows and real-time event handling.

  • Security & Performance:

  • Implement best practices for security, authentication, and data protection.

  • Monitor application performance, troubleshoot issues, and improve response times.

  • Collaboration & Version Control

  • Work closely with product managers, designers, and QA teams to deliver high-quality features.

  • Use Git/GitHub for version control and participate in peer code reviews.

  • Continuous Improvement:

  • Stay updated with modern frameworks, libraries, and industry best practices.

  • Proactively suggest improvements in system architecture, scalability, and performance.

Key Skills & Qualifications

  • Core Technical Skills:

  • Strong proficiency in JavaScript (ES6+), Node.js, React.js.

  • Hands-on experience with Next.js for SSR and dynamic web apps.

  • Strong understanding of PostgreSQL or other databases.

  • Solid experience deploying and managing applications on AWS.

  • Proficiency in API design, development, and integration (REST/GraphQL).

  • Familiarity with webhooks and cloud functions for event-driven workflows.

  • Development Practices:

  • Experience with responsive design and cross-browser compatibility.

  • Proficiency in Git/GitHub and collaborative workflows.

  • Familiarity with CI/CD pipelines and automated deployments (Jenkins, GitHub Actions, etc.) is a plus.

  • Soft Skills:

  • Strong problem-solving and debugging abilities.

  • Ability to work independently and within a team.

  • Excellent communication and documentation skills.

Job Type: Full-time

Pay: ₹40,000.00 - ₹50,000.00 per month

Education:

  • Bachelor's (Preferred)

Experience:

  • React: 3 years (Required)

  • total work: 3 years (Required)

  • Node.js: 3 years (Required)

Work Location: Remote

Required Skills

React.js Node.js Next.js. RESTful APIs GraphQL PostgreSQL AWS EC2 S3 Lambda CloudFront third-party API integrations

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