Senior Full-Stack Developer

**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