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Relanto

Senior Software Engineer - MERN Stack

Bengaluru · Staff/Principal

Good timing - competition is buildingVerified listingPosted 5d ago

Applicants who checked fit first are 3.1× more likely to hear back

Your match scoreCalculated · locked
86Overall
64Skills
97Experience

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What we know about this role

Hiring pulse

MEDIUM

Relanto is reviewing applications at a steady pace. Expect a standard response time as they evaluate the current pool.

Apply window

First 72 hours

Window passed - posted 5d ago

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Reposted role

This role was posted earlier, closed, and has now reopened - the company is accepting candidates again.

First posted Apr 1, 2026

Skills required

19 listed
CI/CDMERN StackRate LimitingFault ToleranceDatabase DesignApplication Programming Interface (API)Node.jsReact.js+11 more
CI/CDMERN StackRate LimitingFault ToleranceDatabase Design

You almost certainly match several of these already. Unlock your skill map to see the matches, the gaps, and what to fix first.

Job description

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

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Two ways in

Applicants who checked fit first are 3.1× more likely to hear back

Your match scoreCalculated · locked
86Overall
64Skills
97Experience

Your score for this role already exists

ASAI compared this JD against 41 signals - skills, seniority, domain, stack overlap etc. Add a resume and it unlocks in about 30 seconds.

No credit card · 1 tap with Google

Free · no signup

Get tomorrow's jobs before you have to search

Daily job drops, skill trends and free resources - posted straight to the group. Leave any time.

Join WhatsAppJoin Telegram

No spam. Just jobs and resources.

Why people use ASAI

Someone shared one job with you. ASAI keeps finding the rest.

  • Scored, not searched. Every role ranked against your actual profile.

  • Alerts as often as hourly. Reach new roles while the pile is still small.

  • Skill gaps, spelled out. See exactly which requirements you don't meet yet.

  • Verified jobs, only. Say no to ghost jobs. Your time deserves respect.

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