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Core Protocol & Research

ZK Cryptographer & Researcher

Researches and implements Zero-Knowledge proofs (ZKPs), circuits, and cryptographic primitives for privacy and scaling.

Level: SeniorMode: High-code#ZK#Cryptography#Rust#Circom

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Lane Type
Core Protocol & Research
Seniority Level
Senior
Execution Mode
High-code

1. Role Overview

Specializes in advanced applied cryptography, designing and optimizing ZK circuits for Layer-2 rollups, privacy protocols, and verifiable computation.

2. Daily Work

What you will actually do most weeks

Designing and implementing arithmetic circuits using Circom, Noir, or Halo2
Researching cryptographic primitives, polynomial commitments, and pairing-friendly curves
Optimizing constraint systems and proving time performance
Collaborating with security auditors to verify circuit correctness

Expected Outputs & Deliverables

Optimized ZK circuits and proving systems
Cryptographic research papers and technical specifications
Verified cryptographic libraries

3. Skills & Tools

Must-Have Skills

Advanced abstract algebra, number theory, and cryptography
Proficiency in Rust, C++, Circom, or Noir
Deep understanding of zk-SNARKs, zk-STARKs, and polynomial IOPs

Ecosystem Tools

Circom / Noir / Halo2RustPython / SageMathGit

4. Proof-of-Work & Prep

Actionable Proof-of-Work

Open-source ZK circuit repositories or contributions to ZK rollup codebases

Self-Study Prep

  • Study ZK Whiteboard Sessions and cryptography textbooks

5. Apply & Interview

Application Strategy

Apply to leading ZK infrastructure teams (zkSync, Scroll, Starknet, Polygon) with a cryptography portfolio

Interview Prompts

"Explain the mathematical difference between Plonk and Groth16 proving systems."

6. Guide Roadmap

Step 1

Applied Math & Crypto

Master abstract algebra and pairing-based cryptography.

Step 2

Circuit Languages

Learn Circom, Noir, or Halo2.

Step 3

ZK Protocol Implementation

Build and optimize custom ZK circuits.

Step 4

Cryptographer Placement

Apply to Tier-1 ZK and rollup teams.