--- title: "Rishab Kumar (@rishabkumar7) | Hashnode" description: "Staff Developer Evangelist at Twilio. Read the latest articles by Rishab Kumar on Hashnode." url: "https://hashnode.com/@rishabkumar7" --- @rishabkumar7 # Rishab Kumar @rishabkumar7 · Ontario, Canada · Joined August 2020 Staff Developer Evangelist at Twilio [Website](https://rishab.cloud/) ### [How I’m Getting More Out of Codex](https://rishabkumar7.hashnode.dev/getting-more-out-of-codex?utm_source=hashnode&utm_medium=feed) I started using Codex the obvious way: point it at a repo, ask it to make a change, run the tests, and help me clean up the diff. That is still useful. But lately, I’ve been using Codex for a lot more 10 min read · [rishabkumar7.hashnode.dev](https://rishabkumar7.hashnode.dev/getting-more-out-of-codex?utm_source=hashnode&utm_medium=feed) [2](https://hashnode.com/posts/getting-more-out-of-codex/6a0f7aa2d8e265f60d604b0b) [May 21](https://hashnode.com/posts/getting-more-out-of-codex/6a0f7aa2d8e265f60d604b0b) ### [Google Cloud Professional Cloud Security Engineer Study Guide](https://rishabkumar7.hashnode.dev/google-cloud-professional-cloud-security-engineer-study-guide?utm_source=hashnode&utm_medium=feed) How I passed the GCP Professional Cloud Security Engineer Certification 6 min read · [rishabkumar7.hashnode.dev](https://rishabkumar7.hashnode.dev/google-cloud-professional-cloud-security-engineer-study-guide?utm_source=hashnode&utm_medium=feed) [Dec 15, 2025](https://hashnode.com/posts/google-cloud-professional-cloud-security-engineer-study-guide/69403cbae7e7308bc3e3f3d0) ### [Google Cloud Generative AI Leader Study Guide](https://rishabkumar7.hashnode.dev/google-cloud-generative-ai-leader-study-guide?utm_source=hashnode&utm_medium=feed) How I passed the Google Cloud Gen AI Leader certification exam 3 min read · [rishabkumar7.hashnode.dev](https://rishabkumar7.hashnode.dev/google-cloud-generative-ai-leader-study-guide?utm_source=hashnode&utm_medium=feed) [Nov 26, 2025](https://hashnode.com/posts/google-cloud-generative-ai-leader-study-guide/6927326892e3c99ce7aaaa17) ### [Early Mornings, Late Ambitions: Building a Tech Career on Discipline](https://rishabkumar7.hashnode.dev/early-mornings-building-a-tech-career-on-discipline?utm_source=hashnode&utm_medium=feed) Proving that small, consistent actions — not motivation — can build great careers. 4 min read · [rishabkumar7.hashnode.dev](https://rishabkumar7.hashnode.dev/early-mornings-building-a-tech-career-on-discipline?utm_source=hashnode&utm_medium=feed) [3](https://hashnode.com/posts/early-mornings-building-a-tech-career-on-discipline/67f3535829e32ec63387b4cb) [Apr 7, 2025](https://hashnode.com/posts/early-mornings-building-a-tech-career-on-discipline/67f3535829e32ec63387b4cb) ### [FastAPI as AWS Lambda Function](https://rishabkumar7.hashnode.dev/fastapi-as-aws-lambda-function?utm_source=hashnode&utm_medium=feed) Deploy a FastAPI application to AWS Lambda 3 min read · [rishabkumar7.hashnode.dev](https://rishabkumar7.hashnode.dev/fastapi-as-aws-lambda-function?utm_source=hashnode&utm_medium=feed) [Feb 21, 2025](https://hashnode.com/posts/fastapi-as-aws-lambda-function/67b8eed73cd3e576afe283e6)