Awais K

Software Engineer

Pixelpk Technologies • Full time

Nov 2022 - Jul 2026 • 3 yrs 8 mos

• Led full-stack development of AIVideosTube, an AI video platform serving 18,000+ users, owning architecture end-to-end from the Next.js frontend to a Node.js, FastAPI, and AWS Lambda backend. • Integrated OpenAI, Google Gemini, and Replicate models to power AI video generation, prompt-driven media creation, and viral effects, applying prompt engineering, function calling, and structured outputs to keep model responses reliable in production. • Cut API response time by 80% by introducing Redis caching and optimizing database queries, improving user retention and overall platform responsiveness. • Built CI/CD pipelines with GitHub Actions that reduced deployment time from 10 minutes to 1 minute, eliminating manual release errors and enabling zero-downtime deployments. • Designed and integrated AI features (AI video generation, AI Prompt Battles, Thread Generator, and a viral effects generator) adopted by 10% of active users. • Architected AWS infrastructure spanning Lambda, EC2, ECS, S3, CloudFront, RDS, SQS, Route 53, IAM, CloudWatch, and Amplify, reducing infrastructure costs while improving scalability for production workloads. • Implemented asynchronous job processing with SQS and Celery for long-running video generation and media pipelines, keeping request latency low under load. • Developed high-performance RESTful APIs with FastAPI (Python), documented via OpenAPI/Swagger for data-intensive backend services. • Implemented authentication and billing across products using JWT, OAuth2, NextAuth/Auth.js, and Clerk, with Stripe and PayPal for subscriptions and one-time payments. • Introduced automated end-to-end testing with Playwright, Jest, and Cypress covering core user flows, and instrumented Sentry for error tracking to reduce regressions on release.