Shashank S.

AI-powered SaaS products, mobile apps, developer tools, and technical hiring platforms.

Background in high-performance computing. Research work at IIIT Hyderabad on GPU-accelerated graph algorithms and parallel fluid simulation, including CUDA implementations of all-pairs shortest path that reached 40% speedup over baseline.

Ex-HackerRank, seven years there ending as Technical Product Manager, where I created the Python language track and owned the customer-facing question libraries. Then Expertlead in Berlin as Engineering Team Lead, designing assessments and interview blueprints across 17 engineering verticals. B.Tech + MS by Research in CS from IIIT Hyderabad.

Now running ShaStack, where we've shipped HausWise, a household management app live on the App Store and Google Play, along with CodingChai (technical hiring), Emploire (workforce management), SassyGit (multi-repo GitHub management), and Staffcoder, an assessment environment that runs on a real codebase with a terminal and live preview.

Work I take on: mobile apps for iOS and Android, LLM apps and RAG pipelines, AI agents and workflow automation, full-stack web builds, and custom assessment or hiring platforms.

Stack: Python, React, Node.js, Django, FastAPI, Flutter, React Native, AWS, Docker, Kubernetes, Postgres.

Send over what you're working on and you'll get a straight answer on whether it's a fit.