🐸Smart🐸Contract🐸Programmer🐸

EVM | DeFi | ZK | DM for audits | prev @cyfrin

[RareTalent @RareTalent_xyz]

We are hiring a Senior Software Engineer, Quality Engineering (SDET).

Full-time | Remote | $120K - $180K
For candidates based in Europe, Dubai, Japan, Singapore, South Korea, Hong Kong.

Requirements:
- 5+ years of experience in SDET, Quality Engineering, Test Automation, or Software Engineering.

- Strong JavaScript/TypeScript expertise, with hands-on experience in Playwright, Cypress, or similar automation frameworks.

- Experience designing and building test automation frameworks from scratch, including reusable testing tools and libraries.

- Strong experience in API testing, CI/CD integration, Docker, and end-to-end testing across complex applications.

- Experience with AI-assisted testing workflows, automated test generation, or LLM-powered development tools is highly valued.

- Bonus: Experience testing trading platforms, exchanges, fintech applications, blockchain systems, or other high-throughput distributed systems.

Apply now or refer a friend! (Link in comments)

[vanzoo @vanzooeth]

Private transfers are so hot right now, but how many of you understand how they actually work?

We got you covered with an easy explainer - so easy, you can show it to your grandma

Soon you'll be able to have private transfers live in @ambire

🔥

[Killua @0x158_]

https://t.co/fTL3Jnck4I
go learn.

[🐸Smart🐸Contract🐸Programmer🐸 @ProgrammerSmart]

Groth16 - part 1 - first attempt

Notes
https://t.co/r7W0cDstcW

[🐸Smart🐸Contract🐸Programmer🐸 @ProgrammerSmart]

clz - opcode to return number of leading 0s in a bit

Before clz
Binary search to find most and least significant bits

With clz
msb = 255 - clz(x)
lsb = 255 - clz(x & -x)

What's x & -x?
See code comment

Code
https://t.co/bbIeqrMzvg

Binary examples
https://t.co/W4XeHgsv9A

[zefram.eth @boredGenius]

See Tamaswap for a good example of a “no free lunch” theorem that states nobody can steal user funds with any chain of actions

https://t.co/The5WGn1jV

[t11s @transmissions11]

Been learning about ZK-SNARKs lately! The core ideas behind modern hash-based schemes are surprisingly accessible & elegant 🧙‍♂️

Partly to teach myself, I wrote a post explaining them from scratch for people like me without a deep math background:

https://t.co/KeAgfMaT0k

[🐸Smart🐸Contract🐸Programmer🐸 @ProgrammerSmart]

Groth16

I will explain the complex equations in the future

Notes
https://t.co/r7W0cDstcW

[🐸Smart🐸Contract🐸Programmer🐸 @ProgrammerSmart]

@GB53F8 > i think i should continue my learning and give it some time
Yup. Use your time to learn the craft that you enjoy.

> Strength
Topics that you deeply understand.
In your example, from Aave v3, I would look into Aave v3 integration, forks, copies on other chains

[🐸Smart🐸Contract🐸Programmer🐸 @ProgrammerSmart]

@GB53F8 From what I've seen on x, all BBP have unpleasant experience for SRs

High submission fees, many duplicates, ghosting and dismissed as private known issues.

I would pick BBP by your interest, your strength and amount paid.

[Kann Audits @KannAudits]

🚀 Kann Audits Internship Program 2.0 is here!

We're back with our second paid internship program for Security Researchers!

Looking for motivated hustlers across:

• Solidity
• Rust
• TypeScript / Off-chain
• ZK

We're giving emerging talent the opportunity to work on real security audits, build strong portfolios, collaborate with other researchers, and level up their skills.

Ready to prove yourself?
Apply here: https://t.co/nib0rIQRsM

Once you've applied, comment "Applied!" below 👇

[yAudit @yAuditDAO]

yBorg - Week 1 Day 2

Meet @0xFlint_, the newest yBorg mentor. A gigachad security researcher with a diverse background who spends his free time getting lost in massive Rust codebases. He share's his audit methodology and thoughts on AI in a new video.

Today’s yBorg assignment:
- Watch the vid
- Soak up the alpha
- 👉 Think about how you’d turn his process into an AI-assisted workflow

For those who are joining us online, share a diagram in the comments showing how you'd turn Flint's process into an AI-assisted workflow - we'll be sharing examples from the Discord later.

This whole week we are thinking about process, both human and AI. We'll be sharing lots of diagrams and examples throughout the week and by the end of the week, fellows complete a diagram of what they are building!

@0xFlint_ also hosted an AMA on the discord and we can continue that here in the comments if anyone has anything they'd like to ask.

Enjoy the vid and don't forget to share your diagrams and ask questions in the comments!

[0x @0xProject]

We'd love to see you working with the best team onchain.

View 0x open roles now, including Sr Software Engineer on our API team.

https://t.co/ORxsCkqNEp

[🐸Smart🐸Contract🐸Programmer🐸 @ProgrammerSmart]

@rosarioborgesi Especially protocols with high TVL

[🐸Smart🐸Contract🐸Programmer🐸 @ProgrammerSmart]

Elliptic curve add, scalar mul and pair Solidity examples

Operations are executed by calling precompiles
Reverts if point are invalid
(0, 0) is point at infinity

Code
https://t.co/2vJW7tgmZL

[gusakov.eth | Lido @d_gusakov]

Dear staking protocols and delegated stakers of ethereum:native,

Glamsterdam hardfork is approaching @ethereum mainnet, and there is an important new attack on delegated staking that you should be aware of!

👇

[🐸Smart🐸Contract🐸Programmer🐸 @ProgrammerSmart]

@cryptodavidw Learning ZK, AI's answer were often incorrect, circular or superficial. Blog posts like yours helped a lot to double check that I was going in the right direction.

But yeah, educative content will fade.
Not much to gain for content creators

[🐸Smart🐸Contract🐸Programmer🐸 @ProgrammerSmart]

EC pairing

Notes
https://t.co/r7W0cDstcW

[🐸Smart🐸Contract🐸Programmer🐸 @ProgrammerSmart]

Most digestable explanation of Groth16 soundness

https://t.co/QjTLuD9K0V

Compares the coefficients for A, B and C and deduces that the ending equation is the Groth16 equation.