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 Cybersecurity Governance Specialist. The role will be responsible for the management of cybersecurity policy alignment.

Responsibilities:

Senior/Lead Smart Contract Engineer - Decentralized Perpetuals Exchange

Location: Remote - US or EU if willing to overlap 6+ hours with ET

Compensation: $250K - $500K

We are building the backbone of global decentralized finance (DeFi), operating the largest perpetual exchange on Arbitrum and processing over $20 billion in cumulative trading volume. Our platform enables leveraged trading of real-world assets (RWAs)—commodities, forex, indices, and stocks—alongside crypto, bringing global markets on-chain with full self-custody. Backed by General Catalyst and Susquehanna International Group, we are a small team providing institutional-grade reliability for a protocol handling billions in volume.

We are seeking an exceptional Senior or Lead Smart Contract Engineer to help scale our protocol as we expand to hundreds of markets and billions in daily volume. You will work directly with our founding team (backgrounds from Harvard, Bridgewater, and BlackRock) to architect and implement critical protocol upgrades and new market mechanisms for the next generation of on-chain derivatives.

This is not a junior role. We need an expert who has built and maintained perpetual Decentralized Exchange (DEX) smart contracts in production at scale.

Key Responsibilities:

About Jobgether

Jobgether is a Talent Matching Platform that partners with companies worldwide to efficiently connect top talent with the right opportunities through AI-driven job matching.

One of our companies is currently looking for an Application Security Architect in Ireland.

In this role, you will be responsible for ensuring that the company’s applications and data are protected from cyber threats. You will work closely with development teams to integrate security into the software development lifecycle, conducting security assessments and mitigating vulnerabilities before they can be exploited. Your work will be crucial in safeguarding critical software systems, helping the company remain resilient against evolving security threats.

Accountabilities:

• Conduct comprehensive security assessments and vulnerability scans on applications, APIs, and other software components.
• Identify and analyze security vulnerabilities and risks, and develop strategies to mitigate them.
• Collaborate with development teams to integrate security practices into the software development lifecycle (SDLC).
• Provide guidance and training to development teams on secure coding practices and industry best practices.
• Stay up-to-date with emerging security threats and trends to ensure the company’s security posture remains strong.

Requirements

With more than 20 years of proven experience, QUALCO is a leading Fintech solutions provider, offering a wide range of analytics-driven, highly scalable enterprise software solutions in over 35 countries worldwide. Our end-to-end technology solutions cover a wide range of needs for Banking, Financial Services, Utilities, Insurance, Retail organisations, and beyond.

We are looking for a Security Testing Specialist to prepare and execute analysis of the applications from a security point of view, including an analysis of the available documentation, source code, of the architecture, and penetration testing.

Responsibilities:

With more than 20 years of proven experience, QUALCO is a leading Fintech solutions provider, offering a wide range of analytics-driven, highly scalable enterprise software solutions in over 35 countries worldwide. Our end-to-end technology solutions cover a wide range of needs for Banking, Financial Services, Utilities, Insurance, Retail organisations, and beyond.

We are looking for a Security Testing Specialist to prepare and execute analysis of the applications from a security point of view, including an analysis of the available documentation, source code, of the architecture, and penetration testing.

Responsibilities:

With more than 20 years of proven experience, QUALCO is a leading Fintech solutions provider, offering a wide range of analytics-driven, highly scalable enterprise software solutions in over 35 countries worldwide. Our end-to-end technology solutions cover a wide range of needs for Banking, Financial Services, Utilities, Insurance, Retail organisations, and beyond.

We are looking for a Security Testing Specialist to prepare and execute analysis of the applications from a security point of view, including an analysis of the available documentation, source code, of the architecture, and penetration testing.

Responsibilities: