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Senior Full-Stack Developer

Technology
DevDefy
Karāchi, Pakistan1 month ago
Full timeOn-site

Job description

Job Type: Full-time

Work Mode: On-site

Office Timings: 2:30 PM to 11:30 PM

Salary: USD-pegged salary

Location: Karachi

We’re hiring a Senior Full-Stack Application Developer (5 years) who can ship production-grade web applications end-to-end and use modern AI/agentic workflows responsibly (high-signal output, not AI-generated noise).

We specifically want someone who knows how to use AI tools without damaging the codebase:

  • Agentic spec-driven development (turn ambiguous asks into crisp specs acceptance criteria)
  • AI coding assistant power user (Claude/Codex or similar)
  • Understands how to avoid AI slop (hallucinations, over-abstraction, unreviewable diffs, “works on my machine” code)
  • Awareness of context engineering / RPI
  • Understands context dumb zones and uses back pressure to prevent runaway complexity
  • Strong problem decomposition (right-size tasks for agents with verifiable outputs)
  • Clear ownership mindset: humans drive decisions, agents accelerate execution
Front-end Skills:
  • Expert-level React and Next.js
  • Strong UI architecture, component design, state management, and performance optimization
  • Strong CSS implementation (Tailwind or equivalent), responsive design, and accessibility basics

Back-end Skills:

  • Strong NestJS (clean architecture, modular services, auth patterns, API design)
  • Strong PostgreSQL (schema design, indexing, migrations, query optimization)
  • Strong AWS experience including:
  • Production deployments across environments (dev/stage/prod)
  • Security fundamentals (IAM, least privilege, secrets management)
  • Storage/queues/services as needed (e.g., S3, SNS/SQS, ECS/Fargate/Lambda, RDS, CloudWatch)

DevOps / Delivery Skills

  • Strong hands-on CI/CD (GitHub Actions/GitLab or similar)
  • Strong Docker workflow (local production-ready images)
  • Strong Infrastructure as Code (Terraform or AWS CDK)
  • Strong observability and debugging:
  • Logging/monitoring/tracing (CloudWatch, Sentry, OpenTelemetry or similar)

Product-grade engineering Skills

  • Ability to build and maintain multi-tenant SaaS systems
  • Strong RBAC / permissions implementation experience
  • Writes testable, maintainable code with clean PRs and reliable rollout practices
Keywords
monthsOfExperience: 60ReactOSGitLabSentryDBaseCodingGadgetSCHEMACDKDecompositionJavaScriptDevOpsPostgresqlCI / CDDebuggerAWSDockerGithubReact.jsTerraform

Interested in this role?