Senior Solidity Engineer

Employment: Full-time via MLabs
Engagement: Contracted to a UAE-based enterprise client
Location: Remote (Eastern Europe / MENA / India preferred)

MLabs is hiring an experienced Senior Solidity Engineer to support a large-scale financial technology program for a UAE-based client. You will work on smart contract development within a blockchain ecosystem that integrates enterprise financial systems with distributed ledger technology. This role requires strong Solidity expertise and a solid understanding of secure smart contract architecture in production environments. You will collaborate closely with backend engineers (Java), blockchain infrastructure teams, and cross-functional stakeholders to deliver secure and scalable solutions.

Employment: Full-time via MLabs
Engagement: Contracted to a UAE-based enterprise blockchain / fintech client
Location: Remote (Eastern Europe / MENA / India preferred)

MLabs is hiring a Senior Frontend Engineer (Web3) to support a large-scale blockchain and financial technology program for a UAE-based enterprise client.

You will build secure, high-performance web applications that integrate directly with blockchain infrastructure. This role combines modern frontend engineering with decentralized technologies, requiring strong expertise in React and Web3 integrations. The ideal candidate has hands-on experience integrating smart contracts, wallet providers, and on-chain data into production-grade web applications.

Responsibilities

• Develop and maintain Web3-enabled frontend applications using React and TypeScript
• Integrate smart contracts using Web3 libraries (e.g., ethers.js, web3.js)
• Implement wallet connectivity and transaction flows
• Handle on-chain data fetching and real-time state updates
• Ensure secure and reliable interaction between frontend and blockchain layers
• Optimize performance and user experience in decentralized environments
• Collaborate closely with smart contract, protocol, and backend teams

Requirements

Smart Contract Engineer (EVM + Rust)

Location: European timezones

Compensation: Up to £65 per hour

We are looking for a highly skilled Smart Contract Engineer with deep expertise in both Solidity (EVM) and Rust to join our elite engineering team at MLabs. In this role, you will be subcontracted to work directly with one of our premier clients—leading innovators in the DeFi space—building next-generation financial infrastructure on Base, Arbitrum, and other EVM-compatible networks.

As a bridge between the smart contract layer and high-performance systems, you will architect, develop, and secure complex DeFi protocols. You aren’t just writing code; you are building the "money legos" of the future, ensuring they are gas-efficient, battle-tested, and capable of handling significant TVL (Total Value Locked).

Senior Site Reliability Engineer (Enterprise Platform)

Location: Remote - US - Open to Europe if happy to overlap with EST

Compensation: Competitive

We are hiring on behalf of our client, a high-growth software company supporting the development of a premier open-source, EVM-compatible public ledger built for global enterprise and Web3 use cases. They are currently hiring a Senior Site Reliability Engineer for their "greenfield" enterprise-focused team. This team is building a private and consortium distributed ledger platform designed specifically for sectors with high security and privacy requirements, such as financial services, healthcare, and supply chain.

This is a hands-on, high-impact role where you will own the design, deployment, and reliability of mission-critical, multi-region infrastructure. This is not a traditional support role; they are looking for an engineer who has operated real systems at scale and is eager to take end-to-end ownership of architecture and operational standards from the ground up.

Key Responsibilities:

Join Our Team!

Are you fluent in Italian and searching for an exciting remote opportunity in Greece? At Mercier Consultancy MD, we are looking for a dedicated and enthusiastic Italian Speaking Customer Representative.

This position offers the fantastic benefit of paid relocation to Greece, allowing you to experience a vibrant lifestyle while providing exceptional customer service.

Your Role:

• Deliver outstanding customer support to Italian-speaking clients, ensuring their inquiries are addressed with professionalism and care.
• Engage with clients through various communication channels including phone, email, and chat.
• Utilize our client systems to provide high-quality service effectively.
• Collaborate with your team to ensure swift resolution of customer issues.

Requirements

• Fluency in Italian (both written and spoken) is essential for effective client communication.
• Strong communication skills coupled with a customer-oriented approach.
• Willingness to learn new technologies and tools compatible with remote work.
• Self-motivated, proactive, and adaptable to a fast-paced environment.
• Open to relocating to Greece for this wonderful opportunity!

Benefits

Senior Multichain Backend Web3 Engineer

Location: Remote - US/Europe/Latam/Dubai but must have 5hrs overlap with EST

Compensation: $150K - $200K

Join a well-funded, expert-led team building the foundational yield engine for the crypto economy. We are creating the unified layer that intelligently and continuously reallocates capital across Decentralized Finance (DeFi) protocols to maximize returns. This is a ground-floor opportunity to architect the transition to a multi-chain Web3 future.

This is a high-impact role with immense ownership over the most complex and critical aspects of our platform. You will be responsible for designing and building the scalable infrastructure required to connect and manage assets across various blockchain networks, ensuring security, reliability, and efficiency for all on-chain interactions. This role is ideal for engineers who thrive on technical problem-solving in a fast-paced, high-ambiguity environment.

Key Responsibilities & Impact:

At Quento, the ICT arm of the Qualco Group, we deliver comprehensive and innovative solutions across AI, Digital Engineering, Cloud, and Cybersecurity, helping businesses accelerate digital transformation. With a presence in Greece, Luxembourg, and Belgium, and backed by the expertise of the Qualco Group, we combine deep technical knowledge with strategic partnerships to support business growth.

At Quento, we empower our people to innovate and lead in delivering transformative ICT solutions to our clients worldwide. Quento Technologies seeks a highly motivated and experienced Solution Integrator.

Responsibilities:

At Quento, the ICT arm of the Qualco Group, we deliver comprehensive and innovative solutions across AI, Digital Engineering, Cloud, and Cybersecurity, helping businesses accelerate digital transformation. With a presence in Greece, Luxembourg, and Belgium, and backed by the expertise of the Qualco Group, we combine deep technical knowledge with strategic partnerships to support business growth.

At Quento, we empower our people to innovate and lead in delivering transformative ICT solutions to our clients worldwide. Quento Technologies seeks a highly motivated and experienced Full Stack Developer.

Responsibilities:

At Quento, the ICT arm of the Qualco Group, we deliver comprehensive and innovative solutions across AI, Digital Engineering, Cloud, and Cybersecurity, helping businesses accelerate digital transformation. With a presence in Greece, Luxembourg, and Belgium, and backed by the expertise of the Qualco Group, we combine deep technical knowledge with strategic partnerships to support business growth.

At Quento, we empower our people to innovate and lead in delivering transformative ICT solutions to our clients worldwide. Quento Technologies seeks a highly motivated and experienced Back-End/API Developer.

Responsibilities:

🔗 Senior EVM & Web3 Engineer - Enterprise Distributed Ledger

Location: Remote - US - Open to Europe if happy to overlap with EST

Compensation: Competitive

We are hiring on behalf of our client who is a fast-growing software company dedicated to supporting and servicing an open source, proof-of-stake platform that is EVM-compatible. This network is specifically built to meet the needs of enterprise and Web3 applications, prioritizing speed, security, and stability. They are seeking a seasoned Smart Contract Engineer to join their team, focusing on developing both the core Java services and the Web3 APIs (JS/TS) that process transactions across their network.

You will be a high-impact, hands-on programmer, spending approximately 80% of your time designing, coding, and testing. Your primary focus will be enhancing EVM compatibility and improving the developer experience (DevEx) for users migrating from other EVM chains. This includes both low-level transaction processing in Java and high-level API development for public consumption.

Key Responsibilities: