Quantitative Trading & Market Microstructure Specialist - High-Performance DEX

Location: Remote - Global (Preference for candidates based in: Lisbon, Portugal / UAE / Switzerland / Singapore / Hong Kong / Brazil / USA / UK / Spain / Canada / France / Germany / Greece)

Compensation: $180K - $220K

We are building a high-performance blockchain operating system that fundamentally redefines what's possible on Ethereum by prioritizing unparalleled throughput, decentralization, and security. We are now expanding the team for O2, a new, early-stage project: a next-generation decentralized exchange (DEX) running on our modular execution layer. Designed as a Central Limit Order Book (CLOB), our goal is to build the fastest DEX ever constructed, leveraging parallel execution to unlock high-frequency trading efficiency fully on-chain.

You will play a foundational role, leveraging your expertise in market making and quantitative trading to model, simulate, and optimize the market behavior of our core CLOB protocol. This is a highly hands-on role where you will design and test trading strategy logic, build simulation frameworks, and collaborate with engineering and research to inform critical protocol-level design decisions.

Key Responsibilities:

Mercier Consultancy MD is excited to announce a vacancy for a Czech Speaking Digital Trust and Safety Specialist. In this significant role, you will be responsible for ensuring a secure online environment for our users by monitoring content, managing safety concerns, and enforcing digital safety policies effectively.

Key Responsibilities

• Continuously monitor user-generated content and interactions to identify and address any breaches of community standards.
• Conduct in-depth investigations into reported safety incidents and evaluate evidence to recommend appropriate actions.
• Collaborate with a variety of teams to develop and refine safety policies that enhance user trust and safety.
• Create detailed reports on safety incidents, patterns, and recommendations for senior management.
• Keep up-to-date with emerging trends and challenges in digital safety to proactively adjust protocols.
• Engage with users to promote awareness of safety practices and educate them about potential risks.

Requirements

Researcher, Lending Vertical - On-Chain Economic Security

Location: Remote - Preference for NYC but will accept Remote Europe & USA - would need to overlap EST hours

Compensation: $120K - $150K

We are the pioneer in automated, on-chain economic security systems, trusted by leading crypto protocols like Aave, GMX, dYdX, and others, to secure billions of dollars in assets globally. We empower protocols by optimizing risk management and capital efficiency using world-class custom EVM simulations to provide actionable insights. We are seeking a proactive and results-driven Researcher to join our team, reporting directly to the Vertical Lead, Lending.

You will play a critical role in conducting in-depth protocol research, modeling risk parameters, and communicating findings with high-impact stakeholders in the DeFi lending vertical. This position requires deep analytical skills, the ability to translate complex data into clear strategic guidance, and a strong understanding of decentralized finance mechanics.

Key Responsibilities:

Quantitative Software Engineer - DeFi Economic Optimization

Location: Remote - US, Canada and would consider candidates based in Puerto Rico

Compensation: $150K - $200K

We are a Series B quantitative research and optimization company that leads the field in DeFi economics. We manage market risk, optimize growth, and ensure economic safety for protocols facilitating most spot trading, borrowing, and lending activity across all of DeFi, securing over $42 billion in customer TVL. We are seeking highly skilled and motivated Quantitative Software Engineers to drive the safe progression of future financial systems.

You will be at the intersection of quantitative finance and software engineering, driving the design and implementation of risk management and optimization strategies for major DeFi protocols. This role involves full ownership, from building robust data pipelines and core modeling platforms to deploying logic that enhances capital efficiency and risk-adjusted yields.

Key Responsibilities:

Director of Banking Sales - Cross-Border Payments Infrastructure

Location: Remote - United States

Compensation: $150K - $200K

We build technology that makes markets safer and more accessible by providing cross-border payments and financial infrastructure solutions to banks, from Tier 1 institutions to regional and community banks. Our risk management systems, oracles, and AI models secure billions in value while democratizing access to world-class financial tools. We are seeking a senior, high-impact Director of Banking Sales to drive commercial growth and lead our go-to-market strategy for the banking segment.

This is a senior, high-impact role for an entrepreneurial, execution-oriented builder who can lead the full sales lifecycle from outreach to closing complex deals with financial institutions. You will combine strategic sales leadership with technical and operational fluency, designing and implementing bespoke cross-border payment flows in collaboration with internal teams. You must be equally comfortable in a boardroom with C-suite executives and in the weeds with a payments operations team.

Key Responsibilities:

About the Role
The UI Designer crafts visually compelling, intuitive, and consistent interfaces for digital products. You’ll translate complex functionality into user-friendly interfaces and design systems that promote clarity, confidence, and delight.

Key Responsibilities

• Create visually engaging and accessible designs for web and mobile applications.
• Develop and maintain scalable design systems and component libraries.
• Design clear, effective data visualizations for insights and recommendations.
• Define UI patterns for transparency, user control, and error handling.
• Collaborate with UX Designers, Product Managers, and Engineers to deliver polished, high-performing interfaces.
• Build interactive prototypes to validate designs and gather feedback.
• Incorporate feedback and usability data to continuously refine designs.

Requirements

• 3+ years of experience in UI Design or Visual Product Design.
• Strong portfolio showcasing UI design for digital products.
• Proficiency in design tools like Figma, Adobe XD, or Sketch.
• Understanding of responsive design, accessibility, and usability principles.
• Strong collaboration and communication skills.

Nice to Have

About the Role
The Experience Lead oversees and guides the end-to-end user experience of advanced digital products. This role combines leadership, strategy, and hands-on design direction to ensure solutions are human-centered, ethical, and impactful. You will champion the voice of the user, align cross-functional teams, and set the direction for how users discover, interact with, and build trust in digital solutions.

Key Responsibilities

• Define the holistic user experience vision and roadmap, ensuring experiences are intuitive, trustworthy, and scalable.
• Lead and mentor a multidisciplinary design team (UX, UI, Research, and Content) to deliver cohesive, high-quality experiences.
• Establish and enforce design principles and frameworks for transparency, error handling, and user control.
• Partner with Product Managers, Engineers, Data Scientists, and Business Stakeholders to align experience goals with product and business strategies.
• Oversee experience architecture across complex product ecosystems, including information structure, navigation, and interaction flows.
• Guide the creation of prototypes and usability testing to validate and refine experiences based on real user feedback.
• Define and track UX success metrics such as adoption, satisfaction, trust, and usability.

Requirements

Validator BD Lead - High-Performance Blockchain Infrastructure

Location: Remote - Europe or North America

Compensation: $140K - $150K

We are reengineering blockchain infrastructure from first principles to make global digital markets as precise and dependable as physical systems. Built on a leading high-performance blockchain, our platform delivers deterministic execution, guaranteed inclusion, and low-latency performance, solving foundational failures that plague current systems. We are building the reliability and control institutions demand, and we are seeking a Validator BD Lead to drive the adoption of this critical infrastructure across the validator ecosystem.

As the Validator BD Lead, you will own and drive the validator engagement strategy, serving as a critical, high-ownership role that will shape our go-to-market efforts and partnership model as we prepare for mainnet. You will lead efforts to build relationships with top-tier validators and ensure successful adoption of our infrastructure.

Key Responsibilities:

DeFi Market Analyst - Risk & Innovation

Location: Remote - Preference for NYC - Will accept Remote Europe & USA to work EST

Compensation: $120K - $150K

We are a technology company that builds cutting-edge risk management systems, oracles, and AI models to make markets safer and more accessible. Our platform is trusted by leading protocols in decentralized finance (DeFi), securing and managing billions of dollars in assets. We are seeking a talented DeFi Market Analyst to join our team, reporting directly to the Innovation Lead, to help shape the future of decentralized finance.

As a DeFi Market Analyst, you will be crucial in expanding our trading capabilities, optimizing incentive programs, and providing actionable quantitative insights. This role requires a strong blend of market research, quantitative analysis, and operational efficiency to improve execution quality across our platform.

Responsibilities:

Mercier Consultancy MD is excited to announce an opening for an Online Safety Specialist fluent in Polish and English, with the added benefit of paid relocation to Sofia, Bulgaria! In this pivotal position, you will be integral in maintaining a secure online environment for our users by monitoring and managing online content, addressing safety issues, and upholding community standards.

Key Responsibilities

• Monitor user-generated content and online interactions to identify potential violations of safety protocols and community guidelines.
• Conduct in-depth investigations into reported safety incidents, analyzing data and evidence to determine the most effective responses.
• Collaborate with various teams across the organization to develop and refine safety policies that promote digital trust.
• Prepare detailed reports on safety incidents and trends to inform stakeholders and guide improvements in safety processes.
• Stay informed about emerging digital threats and best practices in online safety to proactively enhance our protocols.
• Educate users about online safety practices and procedures to raise awareness and encourage safe behavior.

Requirements