Senior Big Data Specialist
About Openmesh and Xnode
In today's world, a small number of corporations have control over the majority of data and IT infrastructure. This creates a trust issue as we are expected to rely on these corporations for our data. However, this centralized control has led to social inequality, scandals, polarization, and corruption. It has even resulted in conflicts. Openmesh aims to address this issue by providing an open-source cloud infrastructure and a global network for storing important data without the need for intermediaries. It is the largest open web3 data lake, covering a significant portion of the crypto and web3 ecosystem. In the near future, Openmesh plans to expand its coverage to include public health and scientific research data.
Openmesh allows anyone to create their own decentralized data cloud, connect globally, share data securely, reduce deployment costs, and automate data cloud setup. This network collects, stores, processes, streams, and provides data connectivity to individuals without requiring registration, licensing, or payments. Think of Openmesh as the fabric of the internet that enables universal access and prevents interference from regulators, governments, corporations, and even its creators.
Core Products
Our main product, Xnode, is an integral part of Openmesh. It offers a revolutionary platform for developers to build their own decentralized data clouds quickly and efficiently. By using Xnode, developers can create their data clouds with data connectivity, data APIs, query engines, and analytics engines in a matter of minutes instead of weeks or months. With Xnode, developers only pay for computing and storage, eliminating licensing and setup fees. It significantly reduces the cost of running and operating data clouds by 10-15 times and saves more than 95% of deployment time.
Pythia is another important product developed by Openmesh. It is a powerful analytics and query engine designed to convert raw data into actionable insights. Pythia empowers anyone to design, build, visualize, and deploy robust data products.
Unified APIs provide a single access point for all crypto and web3 data, making it universally accessible without any associated costs. There are no licenses, registrations, or setup fees involved.
Our Vision
Our ultimate vision is to democratize data and address the issue of information asymmetry on a global scale. We believe that data and information are the most valuable commodities in the world. Without reliable and high-quality data, the internet and all its platforms will cease to function effectively. We firmly believe that access to unbiased and trustworthy information is a fundamental right in a free and democratic society. Openmesh is designed to operate without a single authority that can manipulate data, control its distribution, or decide who has access to it. It's built on an open-source infrastructure and is governed by an open-source community.
About the Role
As a Senior Big Data Specialist, your primary responsibility will be to harness the power of big data within Xnode and Pythia. You will contribute to the processing and analysis of immense datasets in the decentralized data landscape.
Your Impact
- Develop and implement innovative solutions for analyzing blockchain data within Xnode and Pythia.
- Design and optimize data processing pipelines for handling large-scale datasets, ensuring efficient analytics.
- Collaborate closely with data science teams to derive actionable insights from extensive datasets.
- Contribute to the development of cutting-edge big data solutions, establishing the organization as a leader in blockchain analytics.
- Improve the efficiency of data processing pipelines, enabling the extraction of valuable insights from large datasets.
- Foster collaborative innovation between big data and data science teams, leading to impactful and effective solutions.
Qualifications
- Bachelor's or Master's degree in Big Data Analytics or a related field.
- Proven experience in working with big data technologies like Hadoop and Spark.
- Strong programming skills in languages such as Python or Scala.
- Demonstrated leadership abilities, with a track record of guiding high-performing teams to deliver complex projects.
- Excellent communication skills, with the ability to convey complex technical concepts to diverse audiences.
- Strategic thinker with an ability to identify industry trends and incorporate them into product development.
Why Join Us
- Lead a groundbreaking product that is revolutionizing the field of data management and accessibility.
- Collaborate with a global community of innovators and leaders in the decentralized space.
- Make a significant impact on how data is accessed and used worldwide, promoting transparency, efficiency, and democratization.
- Enjoy a dynamic and rewarding work environment, along with competitive compensation and benefits.
In addition to your academic qualifications, we value the unique qualities that make you who you are. We're interested in your personal traits, interests, and achievements beyond your university experience, which demonstrate the kind of person you are and the value you can bring to our team.
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
Customer Service Executive
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 Part- Time Customer Service Executive to join our team.
About the Role
The role involves managing customer inquiries, handling KYC processes, responding to emails, and monitoring messages across platforms like Telegram and WhatsApp. The ideal candidate will have strong Japanese language skills and a customer service background. This role will be fully remote.
- Handle customer inquiries via email and chat support.
- Support customer service operations, including but not limited to user research, handling enquiries, process withdrawal applications, KYC, bug reporting, Q&A updates.
- Understand policies and procedures of global customer support, adhere to policies set, ensuring high quality support is provided to users in accordance with global standard.
- Create and post customer announcements.
- Monitor and respond to messages on Telegram and WhatsApp.
- Provide support related to Forex and Crypto (knowledge is a plus).
- During business hours, in addition to responding to customer inquiries, you will be asked to perform tasks such as operating systems to create support-related systems or help center articles as needed, checking payment status, and editing or revising FAQ page
- Maintain a high level of professionalism in customer interactions.
- Adapt to potential future responsibilities, including chatbot and phone support.
- Work together and support other departments to report and solve any customer queries.
Requirements:
- Minimum 2 years of experience in customer service.
- Japanese language proficiency (mandatory).
- Ability to work 3 weekdays + 2 weekends (at least 1 weekend day required).
- Strong communication and interpersonal skills.
- Available to start immediately.
- Strong written and verbal communication skills.
- Must have a PC available for work (smartphones and iPads are not acceptable).
- Must have an internet environment with no data usage restrictions.
Preferred Qualification:
- Knowledge of Forex and Crypto.
Backend Blockchain Engineer
We are OpenCover — our mission is to keep the world safe onchain.
OpenCover.com operates at the intersection of blockchain security and insurance. Working in tandem with leading underwriters and industry players, we protect individuals, businesses and institutions against onchain risks such as malicious transactions, smart contract exploits and depegs.
Founded by Y Combinator alums, our team is backed by Tier 1 investors including Alliance, Coinbase Ventures (Base Ecosystem Fund), NFX, Village Global and Orange DAO, with support from the Lloyd’s of London Lab.
Want to join a high-performance, high-integrity team taking onchain safety to the next level? Read on.
🚀 Your role
You would join the founding team to develop core backend infrastructure working closely with our CTO. Your role would focus on expanding the first transaction security layer to insure billions in value. The work involves collaborating with top protocols and industry players to prevent incidents like the ByBit hack from ever happening again.
Areas you’ll work on
Soft auditing and semantic modelling of leading protocol designs and functions.
Designing, implementing and backtesting transaction validation checks.
Developing asset pricing and transaction risk models.
Tracking exposure and other insurance metrics in real-time.
Iterating and expanding our API based on customer feedback.
Staying up to date with industry trends including EIPs and security incidents.
You’d be a great fit if
You’re a generalist who quickly embraces new technologies and challenges with a passion for building products from the ground up in a collaborative, tight-knit team.
You go all out to use your knowledge and work well autonomously but know when to reach out for support.
You have 5+ years of full-time experience developing and shipping backend services with Node.js and TypeScript.
You’ve designed, implemented and/or audited smart contracts on EVM-compatible chains and have hands-on experience using DeFi.
You’re familiar with PostgreSQL, messaging brokers, AWS/GCP, Docker, Bash and Linux.
You are constantly improving your tech stack and use AI tools to accelerate development.
🙌 Our offer
Put your dent in the universe: build products for and with some of the largest players across Web3 and TradFi.
Directly impact company trajectory and play a key role in driving onchain adoption.
Work IRL with the team at Lloyd’s of London 1–5 days a week— your choice!
Flexible hours with 28 days of paid holiday plus company closure days.
Competitive compensation based on experience + 0.1–0.5% equity.
The equipment you need to do your best work + $1,000 for well-being and personal development each year.
Company-paid travel to events and conferences, if that’s your thing!
Ready to apply?
Head to opencover.com/apply/bbe and get shortlisted in 10 minutes or less.