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 Ingestion IT Systems Database Administrator Expert.

Responsibilities:

We are QUALCO, the technology arm of Qualco Group, with over 25 years of experience in delivering innovative solutions to the financial sector. We serve clients in over 30 countries, helping banks and other financial institutions manage credit and loans effectively while ensuring full regulatory compliance. Our advanced software leverages analytics, artificial intelligence, and digital technologies to support every stage of the credit and lending lifecycle, remaining at the forefront of fintech innovation.

We are looking for a Full Stack Java SW Engineer who will join our Business Process and Applications development team and participate in the analysis, design, and implementation of high-quality software.

A Day in the Life of a Full Stack Java SW Engineer at Qualco will include: 

GoMining is a pioneering digital platform in the Bitcoin mining industry, dedicated to democratizing access to Bitcoin mining through innovative digital mining solutions and strategic partnerships. We work across exchanges, DeFi/Web3 platforms, mining infrastructure, and institutional investment initiatives to provide our clients with diversified opportunities in the digital asset space.

We are looking for a passionate, goal-oriented, and persistent Node.js Developer to join our unique cryptocurrency investment project.

Responsibilities

• Development of a cryptocurrency payment gateway.
• Development of game mechanics.
• Development of an internal transaction system.
• Integration with blockchains: Bitcoin, Ethereum, Binance Smart Chain, Tron, DEX and CEX exchanges, and smart contracts.
• Designing and implementing horizontally scalable service architectures.

Requirements

Principal Software Engineer, Backend Infrastructure (Remote, US)

Location: US (remote-first, office optional). Must be in the US, not Canad. EST Preferred

Compensation: $220K - $300K

Are you a technical leader ready to build the next generation of financial infrastructure?

Join a stellar team of leaders and experts in blockchain technology, cryptography, infrastructure, and security to build the backbone of secure, resilient systems for the evolving financial era. We are hiring a Principal Software Engineer to lead the design, development, and scaling of our core backend systems. This is a high-impact, remote-first role for someone who excels at setting technical direction and owning critical projects end-to-end.

As a Principal Software Engineer, you will be more than just a coder; you will be a key driver of technical strategy and execution. You will own mission-critical projects while setting the technical direction and ensuring our platform is fast, resilient, and secure under the high-stakes demands of financial workflows.

Senior Data Engineer - AI-First Fintech Platform

Location: Remote - Fully Remote - Across Europe

Compensation: $120K - $140K

We are a rapidly growing fintech and crypto platform undergoing an AI-first transformation. We are seeking a strategic, high-impact, and high-ownership Senior Data Engineer to build the foundational data infrastructure that powers our cutting-edge AI features.

You will report directly to the CTO and work closely with our Machine Learning (ML) team to consolidate and govern our data ecosystem (including PostgreSQL, Kafka, BigQuery, and GCS) into a clean, governed, and ML-ready platform. Your contributions will directly enable critical AI functionality across our product suite.

This role is responsible for the end-to-end design, implementation, and governance of our core data platform, ensuring high performance and readiness for ML applications.

About Us

At Zyte, we eat data for breakfast and you can eat your breakfast anywhere and work for Zyte. Founded in 2010, we are a globally distributed team of over 250 Zytans working from over 28 countries who are on a mission to enable our customers to extract the data they need to continue to innovate and grow their businesses. We believe that all businesses deserve a smooth pathway to data

For more than a decade, Zyte has led the way in building powerful, easy-to-use tools to collect, format, and deliver web data, quickly, dependably, and at scale. And today, the data we extract helps thousands of organizations make smarter business decisions, secure competitive advantage, and drive sustainable growth. Today, over 3,000 companies and 1 million developers rely on our tools and services to get the data they need from the web.

As a Full Stack Engineer, you will play a crucial role in enhancing our customer-facing applications and backend systems. You will work closely with a diverse and collaborative team, embracing opportunities to innovate and implement scalable solutions. The ideal candidate is comfortable working across the entire technology stack but with a focus on the frontend and has a strong understanding of web applications and technologies.

GoMining is a global Bitcoin-powered fintech ecosystem building high-load financial products for users around the world.

We are looking for an experienced Node.js Developer who will strengthen our core backend team, work with high-intensity data flows, and help scale our financial infrastructure.

This role is ideal for someone with strong backend engineering experience in fintech, a deep understanding of product development, and the ability to deliver stable, secure, and scalable systems.

Responsibilities

• Develop and maintain backend services using Node.js with a focus on performance, reliability, and security.
• Implement new product features and integrate financial logic into existing services.
• Work with high-load systems, optimize application performance, and ensure stable service operation.
• Collaborate with product managers, QA engineers, and other developers to deliver end-to-end functionality.
• Integrate third-party APIs, PSPs, internal services, and crypto-related components.
• Write clean, maintainable, well-tested code following best practices and internal guidelines.
• Participate in architecture discussions and drive technical improvements across the backend stack.
• Support existing microservices, troubleshoot production issues, and contribute to automation and observability.

Requirements

About Octopus by RTG

Octopus by RTG is the tech hiring and outsourcing arm of Robusta Technology Group, dedicated to connecting exceptional tech talent with top-tier organizations across the MENA, GCC, Europe, the US, and Canada. We specialize in building strong, long-term partnerships between skilled professionals and innovative companies. Our mission is to empower growth, innovation, and excellence by matching the right talent with the right opportunities.

Currently, we are hiring for one of our partners who are building a tech-enabled supply chain platform that empowers retailers and brands to launch 20–60 minute delivery services within days. The solutions include:

• ML-based SaaS: Demand forecasting, inventory placement, and white-label customer apps.
• Shared Infrastructure: Dark stores and middle-mile logistics.
• Customer Access: Last-mile delivery and marketing ambassadors.

Position Overview

We are seeking a Senior Lead Engineer to join our team. You will lead 1–2 junior full-stack engineers while remaining hands-on with development. Your role will include driving integrations, implementing and customizing systems, and co-defining technical architecture and roadmaps with the CTO. Lead and mentor junior full-stack engineers while being hands-on in development.

Description

Welcome to PXGEO

PXGEO is an innovative marine geophysical service provider combining the strengths of ocean bottom and towed streamer seismic data acquisition techniques to deliver seamless subsurface imaging for a sustainable future.

What's the role?

This role will be part of our Manta Technology team and will be responsible for architecting and implementing the core server-side components that power Digest core applications. This position will be responsible for developing new programs and producing updates or amendments, in accordance with the constraints set in the development plan. This position will collaborate closely with front-end engineers, data scientists, and geophysicists to ensure seamless performance across offshore deployments and field operations. Key responsibilities include:

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: