Mercier Consultancy MD is thrilled to offer exciting Dutch Speaking job opportunities in Sofia, Bulgaria, complete with a fully paid relocation package! If you’re a Dutch speaker looking to advance your career in an international environment, this is the perfect opportunity for you. Join our team and experience the vibrant culture of Sofia while working for a company that values its employees.

Key Responsibilities

• Provide exceptional customer support to Dutch-speaking clients via multiple communication channels.
• Assist customers in resolving inquiries, providing product information, and ensuring a satisfying experience.
• Document interactions accurately in the CRM system for follow-up and quality assurance.
• Collaborate with team members and other departments to improve customer service processes.
• Participate in training and professional development programs to enhance skills and knowledge.
• Embrace challenges and work proactively to meet customer needs and expectations.

Requirements

UX Designer - Web3 Live Sports Gaming

Location: Remote - Preference for UK as thats where the majority of the team are based, 2nd preference is EU - fully remote.

Compensation: $75K - $120K

We are a rapidly growing, stealth-mode team building the ultimate digital playground for the world's most passionate football fans. Our mission is to make the match-day experience more engaging, social, and fun by blending speed, robust data, and vibrant design. We are looking for a highly creative and user-focused UX Designer to define the look, feel, and function of our web and mobile applications, translating complex live sports data into intuitive interfaces.

You will be instrumental in leading the UX strategy for our core Web platform, where the majority of live fan interaction occurs. Your focus will be on designing interfaces that are intuitive, glanceable, and performant even during the most chaotic moments of a live game. You will own the design system, drive optimization through testing, and collaborate closely with engineering to ensure pixel-perfect implementation.

Key Responsibilities:

Staff Software Engineer - Distributed Ledger Execution

Location: Remote - US

Compensation: $ Competitive

We are a fast-growing software company committed to supporting, developing, and servicing an open source, proof-of-stake platform. This EVM-compatible Distributed Ledger Technology (DLT) is specifically built to meet the needs of enterprise and Web3 applications, prioritizing speed, security, stability, and sustainability. We are seeking a Staff Software Engineer to be a technical leader on our core Execution Team.

You will be responsible for delivering software services, business logic, and APIs within the core Consensus Node—the heart of our DLT. This is a high-impact role requiring deep passion for solving technical challenges involving distributed execution, state management, transaction lifecycles, and economic systems (fees, rewards). You will drive technical direction, optimize performance, and mentor engineers within a highly collaborative, open-source environment.

Key Responsibilities:

Senior Software Engineer - Developer Tools & SDKs

Location: Remote - US & Americas

Compensation: $ Competitive

We are a fast-growing software company dedicated to supporting and developing an EVM-compatible, open-source, proof-of-stake platform. This public network is engineered for enterprise and Web3 applications, prioritizing speed, security, stability, and sustainability, and is governed by industry-leading organizations. We are seeking an experienced Software Engineer to lead the development of world-class developer tools and SDKs.

You will take the lead on crafting seamless developer experiences, owning the design, build, and maintenance of our open-source SDKs and related tooling. This role requires technical leadership, hands-on coding across multiple languages, and a strong focus on developer empathy. You will work cross-functionally to ensure our tools are intuitive, robust, and aligned with real-world developer needs.

What You'll Be Doing:

Smart Contract Developer - Institutional DeFi Protocol

Location: Remote - US only (preference for onsite/hybrid in LA)

Compensation: $160K - $180K

We are an on-chain financial infrastructure company backed by leading VCs, committed to upgrading financial markets through 24/7 instant settlement. Our first product is an institutional-grade smart contract protocol that facilitates interoperability and liquidity across tokenized financial assets and stablecoins. We are seeking a Smart Contract Developer to join our core engineering team and build the foundational infrastructure that bridges traditional finance (TradFi) and decentralized finance (DeFi).

This is a high-impact, hands-on role where you will design, develop, and deploy highly secure, robust smart contracts for our core protocol. You will architect on-chain logic, optimize gas efficiency, and ensure best-in-class security practices to enable institutional-grade DeFi operations. You will work within a small, senior team, collaborating closely with security auditors, product, and business stakeholders.

Key Responsibilities:

Senior Rust Engineer - On-Chain Security Infrastructure

Location: Remote - Europe

Compensation: $165K - $200K

We are building a Credible Layer—a step-level improvement for on-chain security designed to safeguard the crypto industry and restore credibility after billions were lost to hacks. We are creating an on-chain protocol and off-chain infrastructure that enables protocols to enforce security rules for every transaction. Backed by world-class investors, we are seeking a Senior Rust Engineer to work on bleeding-edge infrastructure at the heart of our mission.

You will play a crucial role in shipping cutting-edge features that extend the EVM (Ethereum Virtual Machine) to enable security rules to be checked after every state transition. This is a high-impact, deeply technical role requiring expertise in performance optimization and low-level systems programming within a collaborative, fast-iteration environment.

Key Responsibilities:

Full Stack Engineer - Payments & FinTech Web Applications

Location: Remote - Based in EST or GMT+1

Compensation: $120K - $150K

We are a high-growth technology company building a robust FinTech and payments platform. We are seeking an experienced Full Stack Engineer with strong product sense and deep technical expertise to design and build the secure, scalable, and high-performing web applications that power our platform. This role requires translating complex backend financial systems into intuitive, reliable user experiences.

You will own the development lifecycle of web applications from design through release, working across the full stack with an emphasis on the frontend user experience. You will collaborate closely with backend teams, ensuring that all features prioritize performance, security, and scalability. You will be expected to treat UI components and APIs as products, maintaining high standards for code quality and architectural clarity.

What You'll Do:

Front-End Engineer - Institutional DeFi Liquidity Layer

Location: Remote - US - Would consider South America & Canada (Preference for onsite/hybrid in LA)

Compensation: $ Competitive

We are an on-chain financial infrastructure company building the liquidity layer for the tokenized economy, backed by leading investors. Our flagship protocol connects tokenized assets and high-quality stablecoins to enable 24/7, real-time, compliant capital movement across blockchains. We are seeking a Front-End Engineer to design and build the user experiences that power institutional DeFi, working with production partners including major financial institutions.

You will lead the development of user interfaces for our protocol's web and mobile products and dashboards, spanning swaps, liquidity management, and analytics. This role requires translating complex blockchain and financial interactions into beautiful, intuitive, high-performance interfaces for sophisticated financial users. You'll join a small, high-velocity team, shipping code daily and defining the future of on-chain institutional finance.

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 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