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Logos is a movement supporting the development of the decentralised web. Logos technologies lay the foundations for a freer internet upon which communities can evolve into network states. Each protocol in the Logos stack seeks to empower its users while upholding civil liberties and fundamental freedoms.   ** NO NEED TO APPLY OR SUBMIT ANY INFORMATION VIA THIS APPLICATION (REFERENCE ONLY). IF YOU'RE INTERESTED IN THIS ROLE, PLEASE CLICK HERE TO LEARN MORE AND APPLY. ABOUT LOGOS Logos is a movement to rebuild civil society using decentralised technologies. Logos is a sovereign, decentralised technology stack that allows for the creation of new types of corruption-resistant social institutions. It is designed to champion personal liberties and collective abundance through upgrading human governance. As an open source movement, we need coders, creatives, and anyone passionate to help us build, own, and govern it. CIRCLES INITIATIVE Logos Circles are self-organised groups that take action to solve issues that matter locally. They are a form of parallel governance: instead of reforming broken or rigged institutions, they build better ones that live on or are sustained by the network. Circles respond to local needs, build trust on the ground through solving problems, and experiment with real-world applications of Logos tech and values. Upcoming circles near you. We are looking for Activist Builder Volunteers who are passionate about the use of Blockchain and privacy-preserving technology to provide alternate forms of governance that support local communities.  YOU WILL COMMIT TO * At least 2 hours per week for a minimum of 6 months, though one year is preferable.  * Co-Steward meet-ups, introduce Logos, and help guide the group on anything technical; development needs, leveraging existing OS resources etc. * Help onboard Circle members to Logos, e.g. running a Logos node, or connecting builders with relevant Logos team members to support integrations * Create space for others to contribute, grow, and take ownership over time. * Project manage the delivery of any technical elements related to winnable issues * Spread the Logos love * Coordinate with core contributors from Logos WE WILL COMMIT TO * Provide training on the Logos stack and how it works * Provide training and support on how circles are organised * Have a dedicated “buddy” from our internal contributors who will be your POC * Provide support during the circles * Help in finding a location for the circle's meetings * Provide a limited stipend to support essential Circle needs REQUIREMENTS * Fluency in English * Background in software development / engineering and/or Computer Science * Be aligned with the Logos mission * Have enough free time to dedicate to the circles * Have a deep level of technological knowledge so you can help apply the Logos stack to winnable issues * Be passionate about social issues and have desire to be part of the change APPLICATION PROCESS ** NO NEED TO APPLY OR SUBMIT ANY INFORMATION VIA THIS APPLICATION (REFERENCE ONLY). IF YOU'RE INTERESTED IN THIS ROLE, PLEASE CLICK HERE TO LEARN MORE AND APPLY.

Since being founded in 2018, Copper has been building the standard for institutional digital asset infrastructure with a focus on custody, collateral management, and prime services. Led by Amar Kuchinad, Copper's Global CEO, the firm provides a comprehensive suite of custody, trading and settlement solutions that reduce counterparty risk and bring greater capital and operational efficiency to digital asset markets. At the heart of Copper's offering is Multi-Party Computation (MPC) technology – the gold standard in secure custody. Copper’s multi-award winning custody system is unique in that it can be connected to centralised exchanges, DeFi applications and even staking pools without the assets leaving the custody. Built on top of this state-of-the-art custody, ClearLoop is the first solution in the market that overcomes a growing industry challenge; counterparty risk with exchanges. This solution underpins a full prime services offering, connecting global exchanges, and enabling customers to trade and settle directly from the safety of their MPC-secured wallets. By reducing settlement time for transfers to a few milliseconds (without blockchain network dependency) and offering enhanced security measures, ClearLoop is rapidly reshaping the way asset managers trade and manage capital. In addition to industry-leading security certifications, Copper has one of the strongest insurance coverages in the industry from an A+ rated insurer, positioning the firm as the partner of choice for institutions seeking to safeguard their assets. Department Overview:  The Engineering department is the backbone of Copper; entrusted with the critical responsibility of building and securing the infrastructure that safeguards billions of dollars in digital assets. We operate at the intersection of traditional institutional finance and decentralized blockchain technology. Team Purpose:  We believe the best infrastructure comes from curious minds working openly together. Our engineering organisation brings together people with diverse backgrounds and experiences who genuinely enjoy solving hard problems. We foster a blame-free, intellectually honest environment where you're encouraged to take thoughtful risks and think big. You'll have the autonomy to own meaningful projects while gaining the support you need to grow your skills and advance your career. Role Purpose:  We're looking for a site reliability engineer at the intersection of software development and systems engineering. In this role, your focus will be delivering the reliability, performance, and uptime our clients depend on, whilst continuously improving how our systems operate. Day-to-day, you'll tackle complex infrastructure challenges through a combination of thoughtful engineering and considered automation. Rather than fighting fires, you'll work to prevent them. You'll analyse system capacity and performance, identify bottlenecks, and build solutions that scale across our department, not just one team. You will collaborate closely with the DevOps team, but focusing primarily on reliability engineering, operational excellence, and production readiness across the broader engineering org. Key Responsibilities:   Shape SRE; Define how we think about reliability, observability, and operational excellence. Drive the adoption of SRE principles across the organization while building the systems and processes that make those principles measurable – think SLIs, SLOs and error budgets. Scale Through Automation; Champion architectural improvements that enhance both system reliability and deployment velocity. Provide consultation on system architecture, building reusable platforms and frameworks, planning capacity needs, and conducting production readiness reviews to ensure services launch and operate successfully. Drive Technical Excellence; Engage in and improve the lifecycle of microservices, from inception through deployment, operation, observability, and continuous refinement. Lead Through Influence; Partner with engineering and product leadership to embed reliability into our product development lifecycle. Conduct blameless postmortems and drive systemic improvements in incident management. Mentor engineers across the organisation on SRE practices, helping teams take ownership of their service reliability. While this role begins as an IC position, it will play a key part in shaping the future of SRE at Copper Skills and Experience:  Essential   * Experience in designing, analysing, and troubleshooting distributed systems or micro-services architectures. * Established expertise in observability and incident management. * Proven experience in driving organizational Change * Excellent communication skills, with a systematic problem-solving approach. Desirable   * Experience working with production workloads in AWS * Experience working in financial services or similarly regulated environments * Interest in blockchain based technologies and/or ‘decentralised’ finance * Master's degree in Computer Science or Engineering. Why Copper?   At Copper, we keep innovation, openness, and curiosity at the centre of everything we do. Here, bold ideas get the spotlight, learning is constant, and diversity shapes our team from the ground up. Jump into a fast-moving, dynamic team that loves a challenge and knows how to have fun along the way. Collaboration is just as important as results—you’ll be surrounded by smart, driven colleagues in London and across our APAC, Switzerland, UAE, and US offices. Diversity and inclusion matter to us – they’re woven into Copper life. From employee-led groups like Women at Copper to a committee focused on community and wellbeing, you’ll have a network that supports you from day one. Everyone voice matters. If you’re looking to ramp up your career, or keen to do something new in your field, with us, you’ll keep moving forward. Ready to make your mark, keep growing, and join a supportive, dynamic team? Copper’s the place. The interview process at Copper   Our interview process is designed to be thoughtful, efficient, and engaging. While specific steps may vary slightly depending on the role, the typical journey includes: 1. Initial Screening A brief conversation with our Talent Acquisition team to explore your background, motivations, and alignment with the role. 2. Technical Interview A virtual session conducted via Microsoft Teams, where you'll engage with team members to discuss relevant skills, problem-solving approaches, and technical experience. 3. In-Person Interview A conversation focused on team dynamics, collaboration style, and any final technical questions. This may be with cross-functional peers or leadership. 4. Cultural Interview A Conversation that explores our motivations, values and Communication style, helping us understand how you collaborate and align with our team culture  Additional steps may be added based on the role's complexity or seniority. We aim to keep the process transparent and respectful of your time. Benefits  In return for everything you can bring to Copper, we can offer you an exciting, challenging role in a fast-growing and dynamic business, with career opportunities and welcoming working environment. Some of our key remote benefits are highlighted below:  * 35 Days paid time off per annum, inclusive of annual leave and public holidays. Employees also receive one additional day of annual leave for each year of service. * Private Health Insurance If you think you have everything we're looking for and more, then we'd love you to apply for the opportunity.    Copper is an equal opportunity employer. We embrace diversity and equal opportunities in a serious way. We are committed to building a team that represents a variety of backgrounds, perspectives, and skills. The more inclusive we are, the better our work will be. So, bring us your experience, perspectives, and skills. It is in our differences that we will continue to grow and ensure Copper is transforming how institutional investors engage with digital assets. Copper is a Disability Confident Employer, please let us know if you have a disability. If you require us to provide any assistance during the recruitment process, then we would ask you to highlight this to us and we will be happy to accommodate.

Logos is a movement supporting the development of the decentralised web. Logos technologies lay the foundations for a freer internet upon which communities can evolve into network states. Each protocol in the Logos stack seeks to empower its users while upholding civil liberties and fundamental freedoms.   LOGOS MESSAGING TEAM The Logos Messaging team is focused on creating communication infrastructure for a freer internet — permissionless, interoperable, and based on user consent. We're building toward a world where anyone can reach anyone on a network that no single entity controls or can take away. We cannot afford to compromise on Privacy, and "Eventual Decentralisation" is not an option: Logos.co Right now we're deep in the hard problems: Bringing decentralised group messaging over MLS to all developers. This is frontier tech work — the protocols we're writing don't have established playbooks, and the tradeoffs we're navigating haven't all been mapped yet. This is where you come in. We're a small team seeking engineers who have a passion for decentralised chat and who've thought deeply about how these systems work, where they fail, and what it takes to get them right. You'll work directly on our SDK and contribute to the protocols underneath it, with real ownership over work that enables open communication. KEY RESPONSIBILITIES * Implement our messaging protocols in our reference SDK, translating protocol specs into reliable, production-quality Rust * Own the API design and developer experience of the SDK surface — abstractions, ergonomics, and developer-facing documentation * Contribute to messaging protocol specifications alongside the team * As a member of a small team, you'll wear many hats — picking up problems outside your immediate lane, learning as you go, and growing with the team * Write clear technical documentation and participate in async design discussions with collaborators across the project YOU WILL IDEALLY HAVE * Deep familiarity with real-world instant messaging systems - you've worked on, contributed to, or spent serious time understanding how systems like Signal, Matrix, XMPP, or similar are built, where they make tradeoffs, and where they struggle * Experience with decentralised computing - peer-to-peer systems, distributed networks, or decentralised application infrastructure * Comfort working directly with cryptographic primitives - signatures, ciphers, and key exchanges and an understanding of secure private messaging principles such as forward secrecy, post-compromise security, and key management * Solid Rust experience: comfortable writing reliable, maintainable code in a team setting * Previous experience with Web3, blockchains, open protocols, and the values that underpin them * A strong alignment to our principles: https://logos.co/manifesto/ BONUS POINTS * Experience with Post-Quantum Cryptography and its application to secure messaging * Experience with MLS (Message Layer Security / RFC 9420) or the OpenMLS library specifically * You've authored or contributed to an open specification * Familiarity with P2P transport layers such as Waku or libp2p * Experience working for an open source organisation * Comfortable working remotely and asynchronously Don't worry if you don't meet all of these criteria — we'd still love to hear from you if you think you'd be a great fit. Just explain why in your cover letter. HIRING PROCESS Interview with our Talent team  Interview with Team Member (Technical Life Story)  Interview with Team Lead / Pair Programming Session  (Technical Discussion ) Interview with Program Lead (Culture Fit) COMPENSATION The expected compensation range for this role is negotiable, dependent on how we assess your skills and experience throughout our interview process. We are happy to pay in any mix of fiat/crypto.

ABOUT LUXOR Luxor is the leading software and services provider for Bitcoin miners and the broader compute industry. Our full-stack platform supports gigawatts of compute infrastructure, giving operators the tools to monetize their compute, optimize and trade hardware, access financial instruments, and manage energy. We believe that compute power is becoming the world’s next major commodity and our products are built to support this shift. Our goal is to become the leaders in harnessing, refining, and trading compute, unlocking a new asset class for the world’s most important digital resource. As Luxor continues to scale rapidly across software, hardware, financial, energy and cloud infrastructure products, every team member has the opportunity to shape mission-critical systems, influence company-wide strategy, and contribute directly to the future of the compute economy. ROLE DESCRIPTION We are looking for a Data Engineer to join our collaborative, and fast-moving team to work on one of the most rewarding projects in the mining and compute industry. BASIC REQUIREMENTS * Experience building both streaming & batch data pipelines/ETL and familiarity with design principles. * Expert in Python, PostgreSQL, and PL/pgSQL development and administration of large databases with focus on performance and production support on native cloud deployments. * Experience with scalability solutions and multi-region replication and failover solutions. * Experience with data warehouse technologies (Trino, Clickhouse, Airflow, etc). * Bachelor’s degree (or its foreign degree equivalent) in Computer Science, Engineering, or a related technical discipline or equivalent experience. * Deep understanding of programming and experience with at least one programming language. * English language proficiency. PREFERRED REQUIREMENTS * Knowledge of Kubernetes and Docker * 4+ years of working experience in relevant data field. * Knowledge of blockchain technology / mining pool industry. * Experience with agile development methodology. * Experience delivering and owning web-scale data systems in production. * Experience working with Kafka, preferably redpanda & redpanda connect. THE IDEAL CANDIDATE * Passionate about cryptocurrency and public-blockchain technologies. * Has an interest in creating an entirely new market with Hashrate (compute power) as a commodity. * Has an interest in thinking and evolving the architecture of our software to make it robust and maintainable. * Enjoys writing code and pushing boundaries of what has been done so far. * Brings fun to the team but can also go own the rabbit hole to push quality code on schedule. RESPONSIBILITIES * Build scalable and reliable data pipelines that provide accurate data feeds from internal and external systems. * Govern scalable & performant cloud-deployed production relational and non-relational databases. * Collaborate on architecture definitions, always thinking of solutions that are scalable and secure. * Drive data systems to be as near real-time as possible. * Design, document, automate and execute test plans to ensure the quality of the datasets. * Participate in the process of generating and analyzing features. At Luxor we believe that meaningful contributions can be made by anyone. Qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender perception or identity, national origin, age, marital status, protected veteran status, or disability status. Luxor welcomes all! Luxor does not accept unsolicited headhunter and agency resumes. Luxor will not pay any third-party agency or company that does not have a signed agreement with Luxor. HOW WE USE AI IN OUR HIRING PROCESS We use AI tools to support certain parts of our hiring process, and we believe in being transparent about how they’re used. During your application, AI may assist in reviewing CVs, qualifications, and assignments by providing additional insights, but it does not make decisions, every application is evaluated at each step by a member of our hiring team. We also use AI to transcribe interviews so our team can stay focused on the conversation rather than note-taking. Any voice recordings are automatically deleted within 15 days. In addition, AI helps us keep candidates informed about their application status and helps us understand how our process is working so we can improve it over time. In all cases, AI is used to support efficiency and consistency, not to replace human judgment. If you have any questions about how we use these tools or your data, or if you would prefer to opt out of any of these features, please include them in the dedicated section of the application form, and we’ll follow up accordingly.