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 Software Engineer - Fullstack (Remote, North America)

Location: Remote (North America: US or Canada)

Salary Range: $180,000 - $210,000 USD

We are a high-growth technology company at the forefront of revolutionizing security and compliance for businesses worldwide. Our advanced platform is trusted by thousands of companies and is backed by top-tier venture capital firms. We are seeking a highly motivated and experienced Senior Software Engineer - Fullstack to join our impactful, highly collaborative team. Every member is critical in shaping our product and culture, and we offer substantial responsibilities that directly impact our continued growth. This is a fully remote position for candidates residing in the US or Canada.

What You'll Do:

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 a Senior Frontend Engineer for one of our partner organizations in KSA on a 1-year contract, offering the opportunity to contribute to exciting projects within a dynamic and forward-thinking environment.

Main Responsibilities

Development & Architecture

• Lead the development of high-performance, scalable web applications.
• Design and build reusable, modular, and high-quality React components.
• Architect and manage complex state management using Redux, Context API, Recoil, etc.
• Implement and manage API integrations (RESTful APIs, GraphQL).
• Optimize applications for speed, scalability, and performance (e.g., lazy loading, client-side rendering).
• Ensure cross-browser and cross-device compatibility.

Collaboration & Leadership

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 leading the design and implementation of advanced user interfaces for Digest core applications. This position will play a critical role in transforming complex operational processes into an automated and consolidated operation. In addition, this position will ensure that all front-end components meet the rigorous demands of offshore environments and align with PXGEO’s seismic acquisition workflows. The role requires technical leadership, architectural ownership, and a commitment to delivering production-grade software that drives operational excellence across global marine deployments. Key responsibilities include:

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:

Senior Software Engineer, Admin Platform

Location: Seattle, WA (Hybrid: 4 days/week in office)

Employment Type: Full-time

Salary Range: $190K - $205K

We are a well-established, well-funded B2B software company transforming modern workplaces for the hybrid work model. We are looking for an exceptional Senior Software Engineer to join our Admin Platform team, which owns the enterprise features that create a cohesive experience for our largest customers (1000+ employees). This is a high-impact role aimed at driving both customer delight and significant company revenue growth.

The Admin Platform team builds and manages critical enterprise-grade features (e.g., SCIM sync, Custom Roles, SSO) and champions cross-platform needs for large customers. You will work on customer-facing features and key architectural challenges related to scale and performance.

You Will:

We’re looking for a remote Full Stack Developer based in Jordan or Egypt passionate about modern architectures, seamless user experiences, and scalable backend systems to join our growing engineering team.  

Job Overview  

As a Full Stack Developer, you will design and build serverless and microservice-based applications leveraging AWS technologies. You’ll work across the stack from creating intuitive React interfaces to developing scalable Node.js APIs ensuring performance, reliability, and maintainability across our platforms.  

Key Responsibilities  

• Design and develop serverless and microservice architectures using AWS Lambda, API Gateway, and related services.  

• Build responsive, high-quality front-end interfaces using React.  

• Develop and maintain robust back-end APIs using Node.js.  

• Collaborate with cross-functional teams to deliver scalable, high-performance solutions.  

• Implement and maintain CI/CD pipelines for smooth deployment and updates.  

• Ensure system reliability, security, and scalability through clean and efficient code.  

Qualifications  

Backend Engineer - High-Throughput FinTech/Crypto Infrastructure

Location: New York City (Office)

Compensation: $250K - $300K

We are a high-growth software company contributing to one of the world's largest crypto social networks, moving fast and redefining what is possible in the FinTech and crypto space. We are seeking an elite Backend Engineer to design and scale the complex systems powering seamless fiat-to-crypto flows, real-time risk decisions, and rock-solid financial records for a 24/7 system.

You will own mission-critical systems and services at the core of our platform, working on high-throughput, low-latency distributed systems. This role requires deep technical expertise at the intersection of payments, compliance, risk, and on-chain infrastructure.

Key Responsibilities:

Software Engineer - Founder Accelerator Infrastructure

Location: New York City (Non-Negotiable Onsite/Relocation Required)

Compensation: $180K - $260K

We are the leading accelerator for crypto founders, having backed over 300 startups that are now collectively valued at over $10 billion. We are a small, high-trust, high-performance team of builders (ex-Meta, YC, Coinbase, and founders) backed by S-tier investors. We are hiring a Software Engineer to join our in-house engineering team and own features from requirements definition through production launch.

Reporting directly to the CTO, you will be a product-minded, hands-on Individual Contributor who owns the delivery of core products end-to-end. This means turning ambiguous problems into high-quality, shipped software that directly accelerates the next generation of top crypto and AI founders.

What you’ll do:

Senior/Staff Front End Developer - High-Volume Crypto Trading Platform

Location: Remote - US or Europe (Preference for US based candidates)

Compensation: $200K - $300K

We lead the way in cryptocurrency trading, operating the largest Telegram trading bot, facilitating over $25 billion in volume for more than 50,000 daily active users. We deliver seamless on-chain trading experiences with advanced tools like DCA, limit orders, sniping, and automatic wallet copy-trading. We are expanding our influence with a new product, the Trojan Trading Terminal, designed for the web. We are looking for a highly autonomous and driven Senior/Staff Front End Developer to drive the creation of this high-performance web app.

As a Senior/Staff Front End Developer, you will be a key, highly autonomous contributor responsible for translating our robust, high-speed trading capabilities to a new web application. You will collaborate closely with a Senior Full-Stack Developer to ensure the web experience matches our hallmark speed and efficiency.

Key Responsibilities: