Aditya Vandan Sharma

frontend, backend and everything spaghetti | SE at @Tesco | ex engineer @_groww | ex @Rippling

[Aditya Vandan Sharma @AdityaVandan]

I want to want to wake up every day chasing problems. To carry the curiosity that won’t let me sleep, and the discipline that makes me sleep early.

[Aditya Vandan Sharma @AdityaVandan]

Refresh token rotation isn’t bookkeeping.

When an attacker uses a token that’s already been rotated, there’s no benign explanation. Burn the family. Attacker’s out.

Full writeup, Access Tokens and Refresh Tokens: A Production Engineer’s Guide https://t.co/OfUb9vF08y

[Roan @RohOnChain]

This 2 hour Stanford lecture on AI careers will teach you more about winning in the AI race than every piece of AI content you have scrolled past this year.

Bookmark this & give it 2 hours, no matter what. It'll be the most productive thing you could do this weekend.

[Aditya Vandan Sharma @AdityaVandan]

The hard part isn’t the services — it’s knowing when to reach for each one. That’s what separates a list-memorizer from someone who can actually think through a system.

[Aditya Vandan Sharma @AdityaVandan]

200+ AWS services. Maybe 12 actually matter.
Lambda, S3, DynamoDB, RDS/Aurora, SQS, SNS, VPC, API Gateway, CloudFront, IAM, ElastiCache, CloudWatch.

Master these and you can design most systems an interviewer will throw at you. The rest is context-dependent niche stuff.

[Aditya Vandan Sharma @AdityaVandan]

The 5 dimensions:

Read orchestration — cache-aside vs read-through
Write propagation — write-through vs write-back vs write-around
Freshness — TTL + optional refresh-ahead
Miss protection — negative caching, request coalescing
Topology — single layer vs L1/L2

[Aditya Vandan Sharma @AdityaVandan]

Every caching strategy falls into one of 5 dimensions.
Once you see it this way, you stop memorizing patterns and start composing them.
A thread:

[Aditya Vandan Sharma @AdityaVandan]

Can someone share an invite for Grapevine News? @OnTheGrapevine

[Fireship @fireship_dev]

To call yourself a “full-stack” developer in 2024, you must be able to:

- Build frontends
- Build backends
- Provision cloud infrastructure
- Handle UX in Figma
- Maintain efficient CI/CD pipelines
- Create 3D art in Blender
- Manage projects with Scrum
- Attend daily standup meetings without leaving the zone
- Make YouTube videos
- Train transformer models from scratch
- Code live on Twitch for 14 hours straight
- Run a side hustle with at least 10K MRR
- Tweet about cold plunges and fasting
- Beat the stock market with algotrading
- Deploy shit with Kubernetes
- Achieve the Ballmer Peak daily
- Invoke syscalls on Linux
- Optimize for ARM-based CPU architectures
- Publish research papers on quantum algorithms
- Maintain mental health while doing all of the above

Did I miss any?

[Aditya Vandan Sharma @AdityaVandan]

It’s only when the day gets over that I realise what beautiful things I could have done with it.

The happiness I didn’t experience, the pain I didn’t endure but with just a fleeting hope that tomorrow I’ll be different.

[Aditya Vandan Sharma @AdityaVandan]

@arreankit Cringe

[Aditya Vandan Sharma @AdityaVandan]

@arreankit You bought it last month right?

[Aditya Vandan Sharma @AdityaVandan]

@SonySantaMonica What a true gem you’ve made. GOW is truly one of the best stories ever told.

[Aditya Vandan Sharma @AdityaVandan]

@elonmusk Fire more people

[Aditya Vandan Sharma @AdityaVandan]

@ankit__chouhan Hey let’s do that in the office sometime :p

[Aditya Vandan Sharma @AdityaVandan]

@vvaibhav_desai Is it what I think it is :p

[Aditya Vandan Sharma @AdityaVandan]

@praneetmehta11 It’s all we have…… a lie

[Aditya Vandan Sharma @AdityaVandan]

@ankit__chouhan @Rippling You’re gonna kill it.

[Aditya Vandan Sharma @AdityaVandan]

I just subscribed to ByteByteGo System Design https://t.co/mr0rB0AYgK