Senior Full-stack Developer — AWS Environment & API Integration

About QualMinds:  
We at QualMinds design & develop world-class digital products and custom software for Startups, Scale- ups & Enterprises with our world-class engineering team.  We assemble a great team of frontend, backend, full-stack, QA automation, UI/UX, DevOps, data science, machine learning, and agile experts to help our clients propel their pursuit of digital excellence.  Our engineering community at QualMinds is always passionate about building customer-centric software with the highest quality, performance, security, scalability, and lowest failure rates.

Overview:
We are looking for a Senior Backend Developer with strong experience in Node.js, TypeScript, AWS, and API development. You will build scalable and secure backend systems that support our front-end applications.

Experience: 5+ Years

Key Responsibilities :
  • Develop and maintain REST/GraphQL APIs.
  • Build backend services using AWS serverless technologies.
  • Work with Lambda, API Gateway, AppSync, Step Functions, DynamoDB, PostgreSQL, S3, Cognito, and CloudWatch.
  • Implement authentication, authorization, and API security.
  • Design and optimize SQL/NoSQL databases.
  • Improve API performance and scalability.
  • Write clean, tested, and well-documented code.
  • Manage CI/CD pipelines and deployments.
  • Monitor systems and troubleshoot production issues.
  • Work closely with front-end and product teams.
Required Skills & Experience:
  • 5+ years of backend development experience.
  • Strong Node.js and TypeScript skills.
  • Hands-on experience with AWS.
  • Experience with Lambda, API Gateway, AppSync, and Step Functions.
  • Experience with DynamoDB and PostgreSQL.
  • Experience with Supabase.
  • Experience with event-driven architecture, CRON jobs, or Edge Functions.
  • Knowledge of AWS CDK, CloudFormation, or Terraform.
  • Strong API, database, and security knowledge.
  • Experience with Git and CI/CD.
  • Good communication and problem-solving skills.
Nice to Have
  • Experience with AWS Redshift.
  • Experience with Lovable or other low-code platforms.