Staff Backend Engineer: High-Frequency Trading Systems

Location: Remote - Fully remote in Asia

Compensation: $70K - $80K

We are a high-growth fintech powerhouse operating at the intersection of Prediction Markets, AI, and Blockchain technology. With over $200M in annualized volume and a 100% weekly growth rate, we are rapidly redefining how decentralized markets operate. We are backed by world-class investors, including CMT Digital and AllianceDAO, the premier accelerator for the crypto and AI ecosystem.

We are seeking a Staff Backend Engineer to own and scale the low-latency, high-throughput systems that sit directly in our trade execution path. This is not a "standard" backend role; you will build performance-critical infrastructure where micro-optimizations, architectural correctness, and extreme reliability are the difference between success and failure. You will work in a high-stakes environment where your code manages real money and real volume every second.

Responsibilities

Lead Blockchain Payments Engineer - Fiat Ramps & Financial Infrastructure

Location: London

On-site | Full-time

Compensation: Competitive

Our client is an elite team of builders operating at the intersection of fintech and high-scale crypto infrastructure. As a high-growth software organization, the company is responsible for developing the technology behind some of the largest crypto social networks and digital asset launchpads globally. The organization is defined by a philosophy of extreme talent density, rapid iteration, and technical ownership.

The Lead Blockchain Payments Engineer (Fiat Ramps) will serve as a core architect of the firm's financial infrastructure. This role is responsible for designing and scaling the services that power seamless fiat-to-crypto flows, real-time risk decisioning, and immutable financial records. Based in London, this is a full-time, in-person position for an engineer who thrives in high-throughput, low-latency environments and is passionate about building the future of global value transfer.

Key Responsibilities

Payment Orchestration & Integrations

Location: On-Site — Santa Ana, California
Department: Product Operations
Salary Range: $70,000 - $80,000 + 10% Performance Bonus

Company Overview

eJam is a consumer products brand incubator operating across direct-to-consumer e-commerce, Amazon and third-party marketplaces, and retail distribution. We move fast, stay lean, and build products consumers love. Every role here matters — and this one keeps the product engine running.

Position Summary

The Product Development Coordinator is the operational hub of our product pipeline. You will manage the flow of information, track project status, coordinate across internal teams and external partners, and ensure nothing falls through the cracks.

This is not an ideation or strategy role. This is a coordination and execution role for someone who thrives on organization, follow-through, and keeping multiple projects moving simultaneously.

You will maintain our project tracking systems, prepare materials for weekly product meetings, track RFQ processes with vendors, and serve as the central point of communication between sourcing, design, and external resources.

Reports to: CEO

Works closely with: Operations, Sourcing, Creative, External Partners

Core Responsibilities

Pipeline & Project Management

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. Operating in six main 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 seeking a highly organized and analytical Sales Operations Specialist to act as a strategic partner to Sales, Marketing, and Finance teams to ensure alignment of objectives, execution, and continuous improvement.

Role Overview:

The Sales Operations Specialist will support our sales team in achieving commercial operational efficiency. This role will be instrumental in driving sales performance through data-driven insights, CRM management, process optimization, and sales reporting.

Key Responsibilities:

Sales Analytics & Reporting

• Develop and maintain sales dashboards and reports (monthly, quarterly, annual)
• Analyze sales performance data, trends, KPIs and provide actionable insights to management
• Support forecasting processes and revenue planning

CRM & Sales Tools Administration

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. Operating in six main business pillars — 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 detail-oriented Procurement Officer to join our team in Athens. This role will support all procurement operations, back-office activities, and PCR (Purchases, Contracts & Requests) workflows to ensure efficient, compliant, and cost-effective procurement processes.

Role Overview:

The Procurement Officer will support the full procurement cycle — from purchase requisitions to supplier communication, documentation, and delivery follow-up. The role requires strong organizational skills, attention to detail, and the ability to coordinate multiple activities in a fast-paced operational environment.

This position works closely with the Procurement team and internal stakeholders to ensure all procurement and administrative tasks are executed efficiently, while maintaining compliance with company policies and environmental industry standards.

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. Operating in six main business pillars — 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 detail-oriented Procurement Officer to join our team in Athens. This role will support all procurement operations, back-office activities, and PCR (Purchases, Contracts & Requests) workflows to ensure efficient, compliant, and cost-effective procurement processes.

Role Overview:

The Procurement Officer will support the full procurement cycle — from purchase requisitions to supplier communication, documentation, and delivery follow-up. The role requires strong organizational skills, attention to detail, and the ability to coordinate multiple activities in a fast-paced operational environment.

This position works closely with the Procurement team and internal stakeholders to ensure all procurement and administrative tasks are executed efficiently, while maintaining compliance with company policies and environmental industry standards.

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. Operating in six main 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 highly organized and reliable Back Office Administrator to join our team at the Ritsona Plant facility. The successful candidate will report to the Plant Manager and will support the facility and staff with all day-to-day administrative operations. The role involves accurate handling of documentation, maintaining filing systems, and ensuring effective communication with internal departments to support smooth and compliant operations.

Role Overview:

Be a part of sharing special places and shaping lasting memories with Australia’s leading experiential tourism business.

About Us

Exmouth Dive & Whalesharks Ningaloo is proud to deliver unforgettable marine experiences on the pristine Ningaloo Reef in Exmouth, Western Australia. Our tours help guests reconnect with nature through guided wildlife cruises, snorkelling adventures and scuba diving. With two wildlife interaction licences, we offer the rare opportunity to swim with Whale Sharks and Humpback Whales.

Our passionate, fully qualified team ensures safe, respectful encounters while showcasing the natural beauty of Western Australia’s North West Cape.

Operating from February/March to October/November, we experience - and share - all seasons of the Ningaloo Reef.

About Journey Beyond

Australia’s leading experiential tourism group, Journey Beyond, is privileged to operate 20 brands spanning the country and New Zealand, connecting guests to the land, and to each other.

Be a part of sharing special places and shaping lasting memories with Australia’s leading experiential tourism business.

About Us

Exmouth Dive & Whalesharks Ningaloo is proud to deliver unforgettable marine experiences on the pristine Ningaloo Reef in Exmouth, Western Australia. Our tours help guests reconnect with nature through guided wildlife cruises, snorkelling adventures and scuba diving. With two wildlife interaction licences, we offer the rare opportunity to swim with Whale Sharks and Humpback Whales.

Our passionate, fully qualified team ensures safe, respectful encounters while showcasing the natural beauty of Western Australia’s North West Cape.

Operating from February/March to October/November, we experience - and share - all seasons of the Ningaloo Reef.

About Journey Beyond

Australia’s leading experiential tourism group, Journey Beyond, is privileged to operate 20 brands spanning the country and New Zealand, connecting guests to the land, and to each other.

Be a part of sharing special places and shaping lasting memories with Australia’s leading experiential tourism business.

About Us

Exmouth Dive & Whalesharks Ningaloo is proud to deliver unforgettable marine experiences on the pristine Ningaloo Reef in Exmouth, Western Australia. Our tours help guests reconnect with nature through guided wildlife cruises, snorkelling adventures and scuba diving. With two wildlife interaction licences, we offer the rare opportunity to swim with Whale Sharks and Humpback Whales.

Our passionate, fully qualified team ensures safe, respectful encounters while showcasing the natural beauty of Western Australia’s North West Cape.

Operating from February/March to October/November, we experience - and share - all seasons of the Ningaloo Reef.

About Journey Beyond

Australia’s leading experiential tourism group, Journey Beyond, is privileged to operate 20 brands spanning the country and New Zealand, connecting guests to the land, and to each other.