Application Support Engineer

3 days ago

Chennai, Tamil Nadu, India Kaay Labs Full time ₹ 6,00,000 - ₹ 18,00,000 per year

Role: Application Support Engineer

Location: Chennai

Shift: 24/7 Rotational Shifts (including weekends)

Employment Type: Full-time

Role & responsibilities

Job Title:

Tier 3 Application Support Engineer (24/7 Support) React, Serverless, AWS

Job Description:

We are looking for an experienced Tier 3 Application Support Engineer to join our clients global support team. This role involves providing 24/7 application support for mission-critical applications built using modern frontend, backend, and AWS serverless technologies.

You will act as the highest level of escalation in resolving complex issues, debugging production incidents, and collaborating with development and DevOps teams to ensure high availability, performance, and reliability of applications.Key Responsibilities:

  • Provide Tier 3 application support for production systems in a 24/7 shift rotation.
  • Troubleshoot, debug, and resolve complex technical issues across frontend, backend, and AWS infrastructure.
  • Monitor applications using CloudWatch, CloudTrail, and X-Ray, ensuring system uptime and reliability.
  • Collaborate with engineering teams to drive permanent fixes for recurring issues.
  • Perform log analysis, root cause analysis (RCA), and create knowledge base documentation.
  • Support CI/CD deployments and automation pipelines.
  • Handle incident response, escalations, and work closely with stakeholders for quick resolution.
  • Ensure compliance with SLAs and deliver excellent customer experience.

Technical Skills Required:

Frontend:

  • Languages: TypeScript, JavaScript, SCSS/Sass
  • Frameworks: React, React Router DOM
  • Build & Testing: Vite, Vitest, SWC
  • UI: Material-UI
  • Styling: Tailwind, Emotion, PostCSS

Backend (Serverless):

  • Languages: TypeScript, JavaScript, Python, GraphQL
  • Repo Management: Nx, Lerna, NPM
  • Build Tools: SWC, esbuild, TypeScript

AWS Services:

  • CDK, Lambda, AppSync, Cognito, OpenSearch, DocumentDB, Redis, Postgres, GraphQL API, S3, Firehose, Secrets Manager, Route 53, WAF, CloudFront, SNS, SQS, CloudWatch, CloudTrail, X-Ray

Qualifications & Experience:

  • 5-8 years of experience in Application Support / Production Support / DevOps.
  • Strong background in AWS serverless architecture and microservices.
  • Expertise in debugging distributed systems and incident management.
  • Good understanding of CI/CD pipelines, monitoring tools, and automation.
  • Hands-on knowledge of frontend React applications and backend APIs.
  • Excellent problem-solving, analytical, and communication skills.
  • Willingness to work in a 24/7 rotational support model.

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