Skay

CTO - Full-Stack AI & DevOps Engineer

Exarth • Self-employed

Apr 2024 - Present • 2 yrs 6 mos

· Led end-to-end development of scalable SaaS platforms, owning architecture, implementation, deployment, observability, and production support across enterprise solutions. · Built high-performance backend services using FastAPI as a primary platform and Node.js (NestJS) and Flask for selected integration and real-time services, leveraging PostgreSQL, SQLAlchemy, Redis, and TypeScript-based services. · Developed modern React and Next.js applications with TypeScript, React Query, Redux, and reusable component libraries, while maintaining Angular applications and enterprise UI modules. · Architected AI-powered applications using OpenAI APIs, LangChain, LangGraph, RAG, Pinecone, pgvector, embeddings, and agentic AI workflows for enterprise knowledge management and intelligent automation. · Built scalable data ingestion and analytics pipelines using Python, Airflow, BigQuery, dbt, PostgreSQL, and cloud-native services for ETL/ELT workflows, AI ingestion, and reporting. · Deployed and managed systems across AWS, Azure and GCP, containerized with Docker and orchestrated via Kubernetes, using Terraform for infrastructure as code. · Established observability and monitoring standards using Prometheus, Grafana, Datadog and Sentry, with centralized logging, dashboards and alerts. · Built and maintained CI/CD pipelines and acted as a technical lead, conducting design reviews, enforcing engineering practices, and mentoring engineers.

Full-Stack Software Developer

Neon Apps • Self-employed

Dec 2021 - Apr 2024 • 2 yrs 4 mos

· Delivered full-stack web applications using React, Next.js, TypeScript, Node.js, Python, Django and Flask, applying component-driven design and performance optimization. · Built backend services and APIs with Node.js (Express.js), NestJS, Django, Flask and FastAPI, supporting complex business workflows and third-party integrations. · Designed multi-tenant CRM, HR, employee management, time tracking, workflow, dashboard and reporting solutions. · Designed and optimized PostgreSQL, MySQL, MongoDB and Redis data layers, including schema design, indexes, migrations and query optimization. · Integrated AI functionality using OpenAI APIs, GPT models, LangChain, Hugging Face, NLP and embeddings. · Deployed and supported applications using Docker, Kubernetes, AWS, GitHub Actions, Jenkins and automated CI/CD. · Refactored legacy systems to improve maintainability, test coverage and performance, while supporting production debugging and issue resolution.

Full-Stack AI Engineer

Seedswild • Freelance

Dec 2020 - May 2022 • 1 yr 5 mos

Designed and developed software across agriculture, eCommerce, marketplace, business automation and AI-enabled digital platforms. · Built responsive applications using React, Next.js, TypeScript, Tailwind CSS and Redux. · Developed scalable services using Python, Django, Flask, FastAPI, Node.js, Express.js and REST APIs. · Designed data layers using PostgreSQL, MySQL, MongoDB, Redis, Firebase and Supabase. · Integrated OpenAI, GPT models, NLP, machine learning, embeddings and AI automation into business workflows. · Implemented asynchronous processing, caching, background jobs, real-time functionality, Docker, AWS and CI/CD.