Blockchain ZK Engineer (Cross Chain Interoperability Protocol)
[Introduction]
ChainSafe is a renowned blockchain research and development company that focuses on infrastructure solutions for the decentralized web. With significant contributions to various ecosystems like Ethereum, Polkadot, and Filecoin, ChainSafe emphasizes creating solutions for developers and teams in the evolving web3 landscape. They excel in areas such as gaming, bridging, NFTs, and decentralized storage, advocating for open-source practices and community-centered values.
[Overview of the Role]
As a part of the dynamic team at Sygma, we are in search of an individual deeply committed to enhancing the blockchain interoperability sector. The ideal candidate will have a background in blockchain protocols and a strong enthusiasm for advancing these sectors by amalgamating their functionalities.
Substantial responsibilities include architecting and implementing extensions to the foundation of the Sygma interoperability protocol and associated tools. Collaboration with the Research Team to explore cutting-edge blockchain technologies and drive innovation in cross-chain protocols is a key aspect of this role.
With our focus on cross-chain interoperability technologies utilizing ZK and Optimistic bridges, your involvement as a Blockchain ZK Engineer will be instrumental in refining blockchain interoperability and expanding possibilities within this emerging field. All work at Sygma is open-source, fostering ample opportunities for cross-collaboration within diverse blockchain networks and ecosystems.
[Key Responsibilities]
- Mapping out strategies to enhance existing solutions by improving quality, performance, and modularity of current components.
- Conducting in-depth research, collaborating with the Research Team to explore new blockchain technologies relevant to interoperability.
- Driving proof-of-concept implementations to validate the feasibility and usability of diverse solutions.
- Participating in pivotal architectural and design decisions to formulate a robust bridging solution for disparate network types.
- Supporting developers during development cycles, based on thorough research interventions.
[Required Proficiencies]
- Minimum of 2 years engaging with blockchain technologies as a developer, coupled with a total of 3 years in Software Engineering.
- Proficiency in crafting zkSNARK circuits using frameworks like Halo2, Plonky2, and more.
- Extensive practical experience with the Ethereum Virtual Machine (EVM) and distributed systems construction.
- 1-2 years of experience with Rust or parallel programming languages.
- Exceptional debugging skills with keen attention to detail and a resourceful problem-solving approach.
- Eagerness to delve into unexplored territories, conduct active research, and share considerable knowledge with the team.
- Willingness to expand your knowledge across multiple technology stacks.
[Bonus Proficiencies]
- Prior experience with interoperability projects or protocols is advantageous.
- Ability to draft research memos, design proposals, and technical specifications.
- Profound understanding of low-level blockchain protocols and concepts such as Data Availability, Rollups, and Interoperability.
- Familiarity with distributed and peer-to-peer system intricacies.
[Hiring Process]
Candidates applying for this role should expect a series of steps in the hiring process at ChainSafe, including screening calls, interviews with the hiring team, technical interviews, and a technical task completion.
[Diversity and Inclusion]
ChainSafe is a remote-first organization that values diversity and inclusion. We advocate for equality, accessibility, and respect for all individuals, regardless of background. We actively encourage underrepresented groups in tech to apply and contribute to our innovative projects.
[Employee Benefits and Salary]
ChainSafe offers ample opportunities for personal and professional growth, autonomy in work, results-driven environment, flexible work hours, competitive remuneration, and time-off policies. Salary details will be determined during the interview process considering various factors like expertise, location, alignment with market standards, and equity considerations.
Podcast Host / Video Content Creator
Is this you?
✅ You’re a crypto storyteller – You can interview a privacy dev, explain L2 wars, or debate tokenomics like it’s a sport.
✅ Your voice commands attention – Whether on mic or camera, you make technical topics thrilling.
✅ You know what’s next – From EigenLayer airdrops to Politico’s latest anti-crypto hit, you spot angles others miss.
✅ You’re plugged into the scene – You DM with project founders and lurk in dev Discords for scoops.
What you’ll do:
🎧 Host The Defiant’s flagship podcast – Deep-dives with guests like Vitalik, Cobie, or anonymous DeFi degens.
📹 Create viral video content – Breakdowns, conference coverage, and explainers for YouTube/TikTok.
💡 Shape editorial direction – Pitch episode ideas that’ll break the internet (or at least Crypto Twitter).
Hard requirements:
🔒 A demo reel or clips – Show us you can entertain AND inform.
🔒 On-chain credibility – No “crypto curious” applicants. Prove you’ve used DeFi, traded NFTs, or contributed to projects.
Ready to be the voice of Web3? Send your portfolio + favorite crypto hot take.
Korean Growth Lead
Blockchain Advisor/Expert
Who You Are:
✅ You don’t just follow crypto—you live it. You trade, stake, farm, bridge, and interact with DeFi protocols daily. You understand MEV, smart contract risks, and the nuances of different L1/L2 ecosystems.
✅ You can break down complex concepts into digestible insights. Whether it’s explaining restaking, ZK-proofs, or the latest meme coin frenzy, you make it clear for both beginners and pros.
✅ You have a pulse on everything crypto. From regulatory shifts to the newest airdrops, you spot trends before they go mainstream.
✅ You can prove your expertise. We don’t work with self-proclaimed "gurus." Show us your wallets, on-chain activity, research threads, GitHub contributions, or anything that proves you’re a real player in this space.
What You’ll Do:
🔍 Guide our journalists on technical accuracy, emerging trends, and under-the-radar narratives.
📊 Provide real-time insights on market movements, protocol upgrades, and ecosystem shifts.
🎤 Occasionally contribute to podcasts, interviews, or deep-dive reports as a subject-matter expert.
🤝 Connect us with key players—founders, devs, and analysts—to elevate our reporting.
What We Offer:
🔥 A platform with massive reach—your insights will shape how millions perceive crypto.
🔥 Exclusive access to industry leaders, events, and alpha.
🔥 Flexible engagement—remote, part-time, or full-time. We’re open to discussion.
🔥 Payment in crypto (USDC, ETH, BTC) if you prefer.
Non-Negotiable Requirement:
🔒 You must provide verifiable proof of your crypto activity. No exceptions. We need real experts, not armchair analysts.
Ready to shape the future of crypto media? Send your application with proof of your expertise—let’s build the definitive voice of Web3 together. 🚀
Crypto-Native Social Media Manager
Is this you?
✅ You breathe crypto 24/7 – You track Vitalik’s tweets, spot CT alpha before it pumps, and know which anonymous dev just rugged a meme coin.
✅ You turn complexity into virality – You can explain re-staking with a meme or thread LSDfi in a way that gets retweeted by whales.
✅ You’re a strategist, not just a poster – You know how to grow audiences across Twitter, LinkedIn, Farcaster, and beyond—with tactics unique to Web3.
✅ You move at blockchain speed – When news breaks (hacks, forks, SEC lawsuits), you’re first to react with sharp takes, not corporate fluff.
What you’ll do:
🔥 Run our social empire – Twitter, LinkedIn, Telegram, Mirror—you’ll own the voice and vibe.
🔥 Launch viral campaigns – Think threadstorms, meme wars, and community challenges that boost engagement.
🔥 Partner with influencers – Coordinate takeovers, Spaces, and collabs with top names in DeFi.
🔥 Turn data into action – Track what content performs and double down on what works.
Hard requirements:
🔒 Proof of your crypto chops – Show us your anon Twitter with killer engagement, a newsletter, or a Discord you’ve grown.
🔒 No corporate-speak – We want someone who talks like a real human, not a PR bot.
Want to redefine crypto media? Send your resume + links to your best social work (or secret CT account). Payment in USDC/ETH possible.
KOL Business Development
Bitcastle is a cryptocurrency exchange platform which aims to create a new age of exchange where everyone can use it safely and have fun. As we expand and take a more active approach to global expansion, bitcastle is looking to hire a Full-Time KOL Business Development to join our team.
About the Role
We are seeking a dynamic and results-driven KOL Business Development to drive user growth and enhance brand visibility for our exchange. In this role, you will be responsible for identifying, engaging, and nurturing relationships with local KOLs, influencers, communities, projects, and strategic partners to promote our platform.
- Identify and build relationships with local KOLs/influencers/, communities, projects, and other potential partners to promote the exchange in order to achieve user growth.
- As a representative of the exchange, to build and maintain a good relationship with KOLs and marketing channels to achieve long-term partnership
- Be responsible for the execution and performance of KOL marketing strategy, track and analyze results, and make adjustments to ensure optimal performance and maximum ROI.
- Stay updated with local industry developments trends, conduct market research and create strategies when required
- Attend events as a representative of the exchange when required, expand network and bring in more leads for the exchange
Requirements:
- Experience as KOL BD in similar companies/markets
- Understanding of cryptocurrency
- Fluent in English
Preferred Qualification:
- Japanese speaking proficiency