The Role
Build and manage scalable full-stack applications, backend services, REST APIs, and third-party integrations using Node.js and React or TypeScript frameworks. Develop event-driven systems, webhooks, asynchronous processing, secure authentication, and data protection. Optimize performance, implement monitoring and logging, collaborate with product, QA, and DevOps teams, and mentor junior developers.
Summary Generated by Built In
Role Overview:
We are looking for a senior full-stack developer with strong expertise in building and managing API integrations at scale. This is a full-stack role involving both backend service development and frontend application development, with a strong focus on scalable systems and API integrations.
Key Responsibilities:
- Design and develop scalable backend services using Node.js.
- Build and maintain RESTful APIs and integration layers with external systems.
- Develop frontend applications using React.js (or TypeScript-based frameworks).
- Own end-to-end feature development across backend and frontend.
- Design and implement API integrations with third-party platforms and internal services.
- Handle webhooks, event-driven architectures, and async processing.
- Ensure security, authentication (OAuth/JWT), and data protection.
- Implement logging, monitoring, and performance optimization.
- Work closely with product, QA, and DevOps teams for delivery.
- Mentor junior developers and drive engineering best practices.
Required Skills:
Core Stack
- 8+ years of software development experience
- Strong expertise in Node.js (must-have)
- Hands-on experience with React.js or TypeScript-based frontend frameworks
- Strong proficiency in JavaScript / TypeScript
API & Integration
- Proven experience designing and implementing REST APIs
- Strong experience with third-party API integrations
- Hands-on experience with:
- Webhooks / event-driven systems
- Rate limiting, retries, and fault tolerance
- Data transformation between systems
- Experience working with external platforms (payments, SaaS tools, enterprise systems, etc.)
Backend Engineering
- Strong understanding of asynchronous programming and event-driven architecture
- Experience with database design (MongoDB or other NoSQL/SQL)
- Ability to build scalable, high-performance services
Security
- Strong understanding of OAuth 2.0
- JWT-based authentication
- Secure API design and data handling
Cloud & DevOps
- Experience with AWS / Azure / GCP
- Familiarity with CI/CD pipelines
- Experience with logging, monitoring, and observability tools
Skills Required
- 8+ years of software development experience
- Strong expertise in Node.js
- Hands-on experience with React.js or TypeScript-based frontend frameworks
- Strong proficiency in JavaScript or TypeScript
- Experience designing and implementing REST APIs
- Experience with third-party API integrations
- Experience with webhooks and event-driven systems
- Experience with rate limiting, retries, and fault tolerance
- Experience transforming data between systems
- Experience integrating external platforms such as payments, SaaS tools, or enterprise systems
- Understanding of asynchronous programming and event-driven architecture
- Experience with database design using MongoDB or other NoSQL or SQL databases
- Ability to build scalable, high-performance services
- Strong understanding of OAuth 2.0
- Experience with JWT-based authentication
- Knowledge of secure API design and data handling
- Experience with AWS, Azure, or GCP
- Familiarity with CI/CD pipelines
- Experience with logging, monitoring, and observability tools
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The Company
What We Do
Relanto is a global advisory, consulting, and technology-services partner that helps organizations navigate business transformation as artificial intelligence reshapes the business landscape. Founded in 2021, the company combines advisory expertise with consulting and technology services, operating across a global footprint that includes India and the United States. Its mission centers on applying AI and modern technology to evolving enterprise needs.
