Antipollution, a member of Vasileiadis Group of Companies (V Group), is a leading provider of environmental and waste management solutions across the Eastern Mediterranean, Egypt, and the Balkans. With operations across six core business pillars—including Port Reception Facilities, Emergency Response Services, Decontamination Services, Renewable Energy, Alternative Fuel Production from Waste, and Technology—we are committed to sustainability, innovation, and operational excellence.

As part of our growing operations, we are looking for a reliable and organized Junior Back Office Secretary to support the administrative and reception functions at our Group headquarters in Piraeus. This role is ideal for someone at an early stage in their career who is looking to build experience in a corporate environment.

Role Overview

The Junior Back Office Secretary supports the smooth day-to-day operation of the headquarters by assisting with communication, administrative tasks, and visitor coordination. The role requires attention to detail, a positive attitude, and a willingness to learn and grow within a professional setting.

Key Responsibilities

1. Communication & Call Management

About the Role

We are looking for a DevOps Engineer with a strong focus on on-premises infrastructure to join our team. You will be responsible for managing and maintaining the company’s IT infrastructure, ensuring high availability, security, and performance across systems and networks.

The ideal candidate has hands-on experience with infrastructure management, networking, and security, and is comfortable working in complex on-prem environments.

Senior Software Engineer (Solvers)

Location: CET +/- 4

Remote | Full-time

Compensation: $160K - $180K

Our client is a pioneering technology laboratory developing advanced intent-based infrastructure to enable seamless cross-chain interactions. By connecting AI, services, and financial applications, the organization designs intent-driven liquidity layers where smart contracts and decentralized agents interact in real-time. With a core focus on AI, cryptography, and decentralized finance (DeFi), the team is redefining the architecture of cross-chain execution.

The Senior Software Engineer (Solvers) will architect and guide the development of the Solver network—the critical infrastructure powering the ecosystem. This role involves leading engineering design, enhancing performance and reliability, and building the next generation of intent-powered execution frameworks.

Key Responsibilities

We are OB Streem, a leading end-to-end logistics provider delivering intelligent and innovative solutions in Southeast Europe. Our rich heritage stems from decades of expertise with ORBIT (Orphee Beinoglou International Transports) and Makios Logistics and drives our forward-thinking approach in providing excellence in service.

We believe every journey begins with a commitment—to our clients and our team. With a deep-rooted passion and a drive to redefine industry standards, we strive to create seamless logistics solutions that empower businesses and individuals alike. Our mission is to navigate the complexities and challenges of global logistics, ensuring flexibility, reliability, efficiency, and an unwavering focus on customer satisfaction.

As part of the OB Streem family, you will be contributing to maintain a legacy of excellence while being empowered to innovate, collaborate, and make a meaningful impact every day. If you share our vision of transforming logistics into an experience of trust and reliability, we invite you to embark on this exciting journey with us.

We are looking for a Maintenance Administrator to join our team in our offices located in Aspropirgos.

As a Maintenance Administrator, you will be responsible for day-to-day sales activities, including customer communication, excellent customer service and ensure the availability of sufficient and valuable support to the company’s sales team.

Join Alumil as a System & Database Administrator.

About the role

As a System & Database Administrator, you will be responsible for ensuring that the IT infrastructure (servers, OS, databases) runs reliably, securely, and efficiently. You will ensure the reliability, security, and performance of our infrastructure while providing robust database management support.

Your responsibilities will include:

• Monitoring the performance of information systems and ensures their smooth operation
• Managing employee access rights to systems and services
• Monitoring and managing cloud infrastructure and services (Office365 – Azure)
• Executing regular system & database maintenance tasks
• Resolving user issues related to computing systems

Requirements

About the role 

The Smart Solutions Team Leader plays a key role in driving sales performance and supporting the delivery of ambitious revenue targets. Reporting to the Smart Solutions Team Manager, you will lead and motivate the Smart Solutions Sales Team while also contributing directly to sales activity.

This role blends hands‑on selling with team leadership, ensuring that both individual and group targets are achieved through effective coaching, strategic planning, and a strong focus on customer engagement and business growth.  

Duties & Responsibilities 

Location: Remote - +/- 3 hours from CET (EST / Europe preferred)

Remote | Full-time

Compensation: $90K - $150K

We are hiring on behalf of our client in the high-growth Web3 and DeFi sector who is seeking a Senior Backend Engineer to join its core Platform team. This organization builds and evolves the distributed backend systems that power its primary products and customer-facing solutions.

The successful candidate will design and operate complex systems, manage Web3 infrastructure, and collaborate closely with product and platform engineers to deliver reliable, scalable solutions. This role is ideal for an engineer who values strong ownership, thoughtful system design, and maintains a high bar for code quality. The client fosters an environment that prioritizes building solid systems and moving quickly without compromising standards, leveraging modern tools—including AI—to maximize efficiency.

Key Responsibilities:

We are OB Streem, a leading end-to-end logistics provider delivering intelligent and innovative solutions in Southeast Europe. Our rich heritage stems from decades of expertise with ORBIT (Orphee Beinoglou International Transports) and Makios Logistics and drives our forward-thinking approach in providing excellence in service.

We believe every journey begins with a commitment—to our clients and our team. With a deep-rooted passion and a drive to redefine industry standards, we strive to create seamless logistics solutions that empower businesses and individuals alike. Our mission is to navigate the complexities and challenges of global logistics, ensuring flexibility, reliability, efficiency, and an unwavering focus on customer satisfaction.

As part of the OB Streem family, you will be contributing to maintain a legacy of excellence while being empowered to innovate, collaborate, and make a meaningful impact every day. If you share our vision of transforming logistics into an experience of trust and reliability, we invite you to embark on this exciting journey with us.

We are actively seeking an Accounts Receivable Specialist to join our offices in Elefsina.

The Accounts Receivable Specialist will be responsible for managing customer credit accounts, ensuring timely payments, minimizing financial risk, building client relationships, negotiating repayment terms, and supporting healthy cash flow for the business.

Trading Infrastructure Engineer

Location: New York (Office)

On-site | Full-time

Compensation: $200K - $250K

Our client is a high-growth fintech startup building a streamlined trading application designed to bridge the gap between complex on-chain assets and everyday users. The platform provides instant access to digital assets without the friction of external wallets or bridges, while offering advanced social trading features and institutional-grade execution data.

The engineering team is composed of high-caliber, crypto-native professionals with backgrounds from industry leaders such as dYdX, Uniswap, and OpenSea. Following a recent move to a spacious new office in Soho, the organization is looking for a Staff Trading Infrastructure Engineer to spearhead the evolution of their trading infrastructure. This role is focused on the technical frontier of transaction speed, MEV prevention, and liquidity routing.

Key Responsibilities

Location: New York, United States • London, United Kingdom (Office)

On-Site | Full-time

Compensation: Competitive Compensation

Our client is a high-growth software development company and a major contributor to one of the largest and fastest-growing crypto social networks globally. Operating in a high-velocity, high-impact environment, the organization builds cutting-edge infrastructure that supports massive global transaction volumes and substantial revenue generation.

The organization is seeking a Staff Software Engineer (Payments) to design and build the core payment services at the center of this ecosystem. This is a senior, high-ownership role designed for an engineer who thrives on solving hard, ambiguous problems end-to-end—from the moment money enters the system to final settlement, reconciliation, and delivery.

Operating within a lean team of highly experienced engineers, the successful candidate will focus on 0→1 development, moving quickly while maintaining the absolute rigor required for financial systems. The engineering culture prioritizes low bureaucracy, continuous production deployment, and trust in individual judgment over rigid processes.

Key Responsibilities