Strong programming skills in Rust or C++ (or equivalent systems languages) * Experience designing ... Experience with game-theoretic analysis or mechanism design (helpful for understanding protocol ...
Strong programming skills in Rust or C++ (or equivalent systems languages) * Experience designing ... Experience with game-theoretic analysis or mechanism design (helpful for understanding protocol ...
Strong programming skills in Rust or C++ (or equivalent systems languages) * Experience designing ... Experience with game-theoretic analysis or mechanism design (helpful for understanding protocol ...
Strong programming skills in Rust or C++ (or equivalent systems languages) * Experience designing ... Experience with game-theoretic analysis or mechanism design (helpful for understanding protocol ...
AI Agent Trajectory Annotator and Reviewer
Tampa, FL · On-site
$20 - $30/hr
Immediate ABOUT THE ROLE We evaluate how well advanced AI coding agents solve real engineering ... Mostly Python and Go, with some Rust, C, and Ct+. A trajectory runs about 100 steps. WHAT YOU JUDGE ...
New
AI Agent Trajectory Annotator and Reviewer
Tampa, FL · On-site
$20 - $30/hr
Immediate ABOUT THE ROLE We evaluate how well advanced AI coding agents solve real engineering ... Mostly Python and Go, with some Rust, C, and Ct+. A trajectory runs about 100 steps. WHAT YOU JUDGE ...
New
AI Agent Trajectory Annotator and Reviewer
Fort Myers, FL · On-site
$20 - $30/hr
Immediate ABOUT THE ROLE We evaluate how well advanced AI coding agents solve real engineering ... Mostly Python and Go, with some Rust, C, and Ct+. A trajectory runs about 100 steps. WHAT YOU JUDGE ...
New
AI Agent Trajectory Annotator and Reviewer
Fort Myers, FL · On-site
$20 - $30/hr
Immediate ABOUT THE ROLE We evaluate how well advanced AI coding agents solve real engineering ... Mostly Python and Go, with some Rust, C, and Ct+. A trajectory runs about 100 steps. WHAT YOU JUDGE ...
New
AI Agent Trajectory Annotator and Reviewer
Boca Raton, FL · On-site
$20 - $30/hr
Immediate ABOUT THE ROLE We evaluate how well advanced AI coding agents solve real engineering ... Mostly Python and Go, with some Rust, C, and Ct+. A trajectory runs about 100 steps. WHAT YOU JUDGE ...
New
AI Agent Trajectory Annotator and Reviewer
Boca Raton, FL · On-site
$20 - $30/hr
Immediate ABOUT THE ROLE We evaluate how well advanced AI coding agents solve real engineering ... Mostly Python and Go, with some Rust, C, and Ct+. A trajectory runs about 100 steps. WHAT YOU JUDGE ...
New
AI Agent Trajectory Annotator and Reviewer
Pensacola, FL · On-site
$20 - $30/hr
Immediate ABOUT THE ROLE We evaluate how well advanced AI coding agents solve real engineering ... Mostly Python and Go, with some Rust, C, and Ct+. A trajectory runs about 100 steps. WHAT YOU JUDGE ...
New
AI Agent Trajectory Annotator and Reviewer
Pensacola, FL · On-site
$20 - $30/hr
Immediate ABOUT THE ROLE We evaluate how well advanced AI coding agents solve real engineering ... Mostly Python and Go, with some Rust, C, and Ct+. A trajectory runs about 100 steps. WHAT YOU JUDGE ...
New
AI Agent Trajectory Annotator and Reviewer
Jacksonville, FL · On-site
$20 - $30/hr
Immediate ABOUT THE ROLE We evaluate how well advanced AI coding agents solve real engineering ... Mostly Python and Go, with some Rust, C, and Ct+. A trajectory runs about 100 steps. WHAT YOU JUDGE ...
New
AI Agent Trajectory Annotator and Reviewer
Jacksonville, FL · On-site
$20 - $30/hr
Immediate ABOUT THE ROLE We evaluate how well advanced AI coding agents solve real engineering ... Mostly Python and Go, with some Rust, C, and Ct+. A trajectory runs about 100 steps. WHAT YOU JUDGE ...
New
AI Agent Trajectory Annotator and Reviewer
Hialeah, FL · On-site
$20 - $30/hr
Immediate ABOUT THE ROLE We evaluate how well advanced AI coding agents solve real engineering ... Mostly Python and Go, with some Rust, C, and Ct+. A trajectory runs about 100 steps. WHAT YOU JUDGE ...
New
AI Agent Trajectory Annotator and Reviewer
Hialeah, FL · On-site
$20 - $30/hr
Immediate ABOUT THE ROLE We evaluate how well advanced AI coding agents solve real engineering ... Mostly Python and Go, with some Rust, C, and Ct+. A trajectory runs about 100 steps. WHAT YOU JUDGE ...
New
AI Agent Trajectory Annotator and Reviewer
Melbourne, FL · On-site
$20 - $30/hr
Immediate ABOUT THE ROLE We evaluate how well advanced AI coding agents solve real engineering ... Mostly Python and Go, with some Rust, C, and Ct+. A trajectory runs about 100 steps. WHAT YOU JUDGE ...
New
AI Agent Trajectory Annotator and Reviewer
Melbourne, FL · On-site
$20 - $30/hr
Immediate ABOUT THE ROLE We evaluate how well advanced AI coding agents solve real engineering ... Mostly Python and Go, with some Rust, C, and Ct+. A trajectory runs about 100 steps. WHAT YOU JUDGE ...
New
AI Agent Trajectory Annotator and Reviewer
Tallahassee, FL · On-site
$20 - $30/hr
Immediate ABOUT THE ROLE We evaluate how well advanced AI coding agents solve real engineering ... Mostly Python and Go, with some Rust, C, and Ct+. A trajectory runs about 100 steps. WHAT YOU JUDGE ...
New
AI Agent Trajectory Annotator and Reviewer
Tallahassee, FL · On-site
$20 - $30/hr
Immediate ABOUT THE ROLE We evaluate how well advanced AI coding agents solve real engineering ... Mostly Python and Go, with some Rust, C, and Ct+. A trajectory runs about 100 steps. WHAT YOU JUDGE ...
New
AI Agent Trajectory Annotator and Reviewer
Miami, FL · On-site
$20 - $30/hr
Immediate ABOUT THE ROLE We evaluate how well advanced AI coding agents solve real engineering ... Mostly Python and Go, with some Rust, C, and Ct+. A trajectory runs about 100 steps. WHAT YOU JUDGE ...
New
AI Agent Trajectory Annotator and Reviewer
Miami, FL · On-site
$20 - $30/hr
Immediate ABOUT THE ROLE We evaluate how well advanced AI coding agents solve real engineering ... Mostly Python and Go, with some Rust, C, and Ct+. A trajectory runs about 100 steps. WHAT YOU JUDGE ...
New
AI Agent Trajectory Annotator and Reviewer
Lake Worth, FL · On-site
$20 - $30/hr
Immediate ABOUT THE ROLE We evaluate how well advanced AI coding agents solve real engineering ... Mostly Python and Go, with some Rust, C, and Ct+. A trajectory runs about 100 steps. WHAT YOU JUDGE ...
New
AI Agent Trajectory Annotator and Reviewer
Lake Worth, FL · On-site
$20 - $30/hr
Immediate ABOUT THE ROLE We evaluate how well advanced AI coding agents solve real engineering ... Mostly Python and Go, with some Rust, C, and Ct+. A trajectory runs about 100 steps. WHAT YOU JUDGE ...
New
AI Agent Trajectory Annotator and Reviewer
Saint Petersburg, FL · On-site
$20 - $30/hr
Immediate ABOUT THE ROLE We evaluate how well advanced AI coding agents solve real engineering ... Mostly Python and Go, with some Rust, C, and Ct+. A trajectory runs about 100 steps. WHAT YOU JUDGE ...
New
AI Agent Trajectory Annotator and Reviewer
Saint Petersburg, FL · On-site
$20 - $30/hr
Immediate ABOUT THE ROLE We evaluate how well advanced AI coding agents solve real engineering ... Mostly Python and Go, with some Rust, C, and Ct+. A trajectory runs about 100 steps. WHAT YOU JUDGE ...
New
AI Agent Trajectory Annotator and Reviewer
Orlando, FL · On-site
$20 - $30/hr
Immediate ABOUT THE ROLE We evaluate how well advanced AI coding agents solve real engineering ... Mostly Python and Go, with some Rust, C, and Ct+. A trajectory runs about 100 steps. WHAT YOU JUDGE ...
New
AI Agent Trajectory Annotator and Reviewer
Orlando, FL · On-site
$20 - $30/hr
Immediate ABOUT THE ROLE We evaluate how well advanced AI coding agents solve real engineering ... Mostly Python and Go, with some Rust, C, and Ct+. A trajectory runs about 100 steps. WHAT YOU JUDGE ...
New
Information Technology_USA - USA_Enterprise Architect
Jacksonville, FL · On-site
$60.25 - $77.75/hr
... game of tperson entire team. Tperson team is diverse in most ways, with many of tperson resources ... engineering stacks - proficient in typed Python, Rust, and TypeScript Others Excellent ...
Information Technology_USA - USA_Enterprise Architect
Jacksonville, FL · On-site
$60.25 - $77.75/hr
... game of tperson entire team. Tperson team is diverse in most ways, with many of tperson resources ... engineering stacks - proficient in typed Python, Rust, and TypeScript Others Excellent ...
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Full-time
Re-posted 18 days ago
Job description
About Char Network
Char Network is a proof-of-stake application coordination protocol built on Bitcoin. By anchoring data into Bitcoin through cryptographic proofs and economic guarantees, Char powers the next generation of Bitcoin layer twos and applications.
We're a small, sharp, and adventurous team led by Bitcoin developer Jeremy Rubin, pushing the limits of what Bitcoin can be. Our work blends deep protocol expertise with a hacker's creativity to unlock new capabilities for Bitcoin at scale.
We keep things collaborative, fast-moving, and fun-where every contribution counts and every voice matters. Joining Char means working at the frontier of Bitcoin R&D and infrastructure.
About the Role
This role sits at the intersection of research and engineering. You'll invent, formalize, and validate the core protocols that make Char Network work-from Byzantine fault tolerant consensus to staking incentive mechanisms to cryptographic proof systems.
Your focus is on the cryptographic foundations that make Char's protocol secure and efficient: designing and analyzing commitment schemes, aggregation protocols, proof systems, and fork-free coordination mechanisms. You'll work closely with the core protocol team to turn research into hardened, shipping software by building simulations, prototypes, and security specifications that guide implementation.
This is not a pure theory role, you'll write code.
What You'll Do
- Design and analyze cryptographic schemes: BLS proof-of-stake commitments, signature aggregation protocols, hash-based accumulator designs, and zero-knowledge proof systems for Bitcoin anchoring
- Formalize consensus protocols for protocol security: fork-free properties, Byzantine fault tolerance guarantees, and commitment finality, with rigorous threat modeling and adversarial analysis
- Develop and validate cryptographic implementations: work with the protocol team to guide BLS Purify integration, verify protocol specifications against implementation, and conduct security reviews
- Build simulations and prototypes in Rust or C++ to validate cryptographic protocol designs under adversarial conditions: analyze safety/liveness properties and attack resilience
- Conduct formal cryptographic security analysis: threat modeling, game-theoretic attack analysis, and stress-testing through simulation and fuzzing to identify vulnerabilities before shipping
Must-Haves
- Deep expertise in applied cryptography: signature schemes, commitment schemes, zero-knowledge proofs, or cryptographic protocol design
- Expert-level understanding of distributed systems theory: BFT consensus, fork-free protocols, Byzantine fault tolerance, and formal safety/liveness analysis
- Strong programming skills in Rust or C++ (or equivalent systems languages)
- Experience designing, analyzing, or breaking adversarial cryptographic protocols or consensus systems
- Ability to move between theory and practice: formal reasoning, mathematical modeling, and implementation
- Exceptional communication skills-you can explain complex cryptographic ideas clearly to both researchers and engineers
Nice-to-Haves
- PhD or equivalent research experience in cryptography, distributed systems, or a related field
- Prior contributions to Bitcoin, Ethereum, or other consensus-critical software
- Experience with formal verification, model checking, or advanced testing frameworks
- Published papers, technical reports, or BIPs in cryptography or distributed systems
- Understanding of Bitcoin primitives: taproot, timelocks, covenant designs, transaction scripting
- Experience with game-theoretic analysis or mechanism design (helpful for understanding protocol incentives)
- Strong open-source collaboration background
Char Network
- MIT Bitcoin Expo Presentation (April 2026)
- Ember Consensus Paper
- Purify in purify-cpp
BitVM
- BitVM Whitepaper + BitVM2 Whitepaper
- BitVM High-Level Explainer