Senior Infrastructure Engineer - Blockchain Wallet Backbone

Location: Remote - Location: United States (remote-first, office optional). EST time is preferred

Compensation: $180K - $300K

Join a stellar team of leaders and experts in blockchain technology, cryptography, and security. We are building the backbone of blockchain wallet infrastructure for the next financial era. We are seeking a Senior Infrastructure Engineer to design, operate, and scale systems at the intersection of blockchain, cybersecurity, and distributed infrastructure, preparing us to meet the demands of a trillion-dollar industry.

This role goes beyond maintenance—you will be an architect, automator, and security expert. You will embed best-in-class DevOps and SRE practices into our workflows, ensuring our services are highly reliable, secure, and cost-efficient. You will collaborate across engineering, product, and security to translate complex requirements into scalable infrastructure.

Key Responsibilities:

Senior Blockchain Engineer - Encrypted Infrastructure

Location: New York (Office)

Compensation: $150K - $200K

We are a small, fast-moving software company building an encrypted blockchain that combines deep expertise in cryptography, compilers, and distributed systems. Backed by top-tier investors including a16z and Polychain, we are financially secure with several years of runway. We are seeking a Senior Engineer to join our elite team in New York City and work on cutting-edge, challenging engineering problems.

You will join a focused team of industry veterans and standout talent, taking on significant decision-making responsibilities as you design and implement core components of our encrypted platform. This role requires the commitment to bring hard, complex tasks to completion independently, contributing to infrastructure that is fundamentally redefining secure data handling on-chain.

Key Responsibilities:

Product Lead - Institutional DeFi Lending

Location: Remote - Paris or remote (GMT -5 to +2)

Compensation: $100K - $150K

We are a leading Decentralized Finance (DeFi) lending protocol experiencing explosive growth, with over $9 billion in assets supplied on the platform. Backed by major VCs like Ribbit Capital, a16z crypto, and Coinbase Ventures, our mission is to revolutionize lending with an open, efficient, and resilient platform. We are seeking a Product Lead to drive our Prime Products vertical as we establish ourselves as a cornerstone of the new internet-native financial system.

As Product Lead, you will own the strategy and execution for our prime product vertical, focused on advanced users, institutions, and Curators. This role requires developing a deep understanding of the protocol, the competitive lending landscape (both CeFi and DeFi), and the specific risk management needs of large capital allocators. You will work across the organization—with engineering, design, data, and protocol teams—to ship industry-shaping products.

Key Responsibilities:

Mercier Consultancy MD is searching for a Polish Speaking Digital Trust and Safety Specialist to join our dedicated team. In this critical role, you will be responsible for fostering a safe online environment for our users by monitoring digital content, managing safety inquiries, and enforcing community standards.

Key Responsibilities

• Monitor user-generated content and interactions to identify potential violations of our safety policies and community guidelines.
• Conduct thorough investigations into reported incidents, evaluating evidence to recommend appropriate actions.
• Collaborate with cross-functional teams to enhance and develop safety policies that support a trustworthy digital community.
• Create and present detailed reports on safety incidents, trends, and recommendations to inform management decisions.
• Stay updated on the latest developments in digital safety to continuously improve our protocols.
• Engage with users to promote safety awareness and provide guidance on navigating online risks.

Requirements

Mercier Consultancy MD is thrilled to announce a fantastic opportunity for a Dutch Speaking Agent for Luminus, with the flexibility to work remotely from the beautiful landscapes of Greece. As a vital part of the customer support team, you will engage with Dutch-speaking clients to address their inquiries and provide exceptional service while enjoying a work-life balance in a stunning location.

Responsibilities

• Handle customer inquiries and requests in Dutch via phone, email, and chat, ensuring a friendly and professional interaction.
• Assist customers with their accounts, guiding them through troubleshooting processes, and providing solutions to their concerns.
• Maintain a thorough understanding of Luminus products and services to provide accurate information and assistance.
• Document customer interactions, feedback, and any issues in the CRM tool for improved service delivery.
• Work collaboratively with team members to enhance customer journeys and resolve escalated queries efficiently.
• Stay up-to-date with industry trends and customer needs to continuously improve service offerings.

Requirements

Mercier Consultancy MD is pleased to present an exciting opportunity for a Dutch/Flemish Speaking Agent for Proximus, allowing you to work remotely from the beautiful country of Greece. In this role, you will play a key part in delivering outstanding customer service to Dutch-speaking clients, helping them navigate Proximus' product offerings and support.

Responsibilities

• Provide exceptional customer service to Dutch/Flemish-speaking clients via phone, email, and chat, addressing inquiries and providing appropriate solutions.
• Assist customers with account management, troubleshooting, and any technical issues they may face with Proximus services.
• Keep up to date with Proximus' latest products, services, and promotions to provide accurate information.
• Document customer interactions and maintain accurate records in the CRM system for quality assurance.
• Collaborate with colleagues and other departments to ensure a seamless customer experience and resolve escalated issues efficiently.
• Contribute to ongoing improvements in customer service strategies and processes.

Requirements

Mercier Consultancy MD is delighted to offer an exciting opportunity for a Dutch/Flemish Speaking Agent for Eneco, allowing you to work remotely from the picturesque country of Greece. In this position, you will be responsible for providing exceptional customer support to Dutch/Flemish-speaking clients, helping them navigate Eneco's energy products and services.

Responsibilities

• Engage with customers through phone, email, and chat in Dutch/Flemish, providing them with accurate information and support for their energy needs.
• Assist customers with account inquiries, billing issues, and service-related questions in a timely and friendly manner.
• Troubleshoot problems concerning products and services, ensuring all solutions are effectively communicated to the customers.
• Document each customer interaction in the CRM system to maintain high standards of service quality.
• Work collaboratively with other teams to resolve escalated issues and enhance the overall customer experience.
• Stay informed about Eneco's product offerings and energy-related news to better assist customers.

Requirements

Mercier Consultancy MD is excited to present an opportunity for a Dutch/Flemish Speaking Agent for Bofrost, offering the flexibility to work remotely from the stunning surroundings of Greece. In this role, you will be instrumental in delivering top-notch customer service to Dutch/Flemish-speaking clients, assisting them with their inquiries about Bofrost's premium frozen food products.

Responsibilities

• Engage with customers through phone, email, and chat in Dutch/Flemish, providing comprehensive support and information about Bofrost products and services.
• Assist customers with their orders, address any issues related to delivery, and ensure overall satisfaction.
• Troubleshoot problems and provide solutions, guiding customers on how to use Bofrost offerings effectively.
• Document customer interactions in the CRM system to ensure efficient service and to contribute to team performance metrics.
• Collaborate with other departments to resolve complex customer inquiries and improve service processes.
• Maintain up-to-date knowledge of product offerings and promotions to provide accurate information to customers.

Requirements

Mercier Consultancy MD is excited to announce an opening for a Czech Speaking Digital Trust and Safety Specialist. In this pivotal role, you will play a crucial part in ensuring a safe and secure online environment for our users. Your primary responsibilities will include monitoring content, addressing user safety concerns, and enforcing community guidelines.

Key Responsibilities

• Continuously monitor user interactions and content to identify and address violations of safety protocols and community standards.
• Conduct detailed investigations into reported incidents, analyzing evidence and making recommendations for appropriate action.
• Collaborate with cross-functional teams to develop and enhance safety policies that foster trust and security within the user community.
• Create and present comprehensive reports on safety incidents and trends to inform management decisions.
• Stay up-to-date with the latest issues and developments in digital safety to improve existing safety measures.
• Engage with users to promote awareness of safety practices and provide guidance on navigating potential risks.

Requirements

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