Lead/Senior Front-End Engineer (DeFi Infrastructure on Solana)

Location: Remote - PST-CAT preference

Compensation: Competitive

We are building the next generation of Decentralized Finance (DeFi) liquidity infrastructure on Solana. Our platform solves major industry problems by moving beyond traditional over-collateralized lending. We enable under-collateralized borrowing, programmable margin accounts, and composable strategies, all through one seamless application, unlocking capital efficiency and reducing risk.

We are seeking a foundational hire, a Lead/Senior Front-End Engineer, to own and drive the frontend of our flagship platform. This role will shape the entire user experience, technical architecture, and future frontend engineering culture.

As the go-to person for all things frontend, you will be responsible for defining the technical vision and delivering a world-class, high-performance user experience for advanced DeFi users.

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.

Lead Blockchain Payments Engineer - Fiat Ramps & Financial Infrastructure

Location: Full-time, In-person — London, UK

Compensation: $250K - $300K

Join a team of elite builders and a high-growth software company redefining what is possible in the fintech and crypto space. We operate with a philosophy of speed, ownership, and talent density, driving towards a future where financial flows are seamless and instantaneous.

As the Lead Blockchain Payments Engineer, you will be a core architect and owner of our essential financial infrastructure. This high-impact role requires you to design and scale the core services that power seamless fiat ↔ crypto flows, real-time risk decisions, and rock-solid financial records for a high-volume, global platform.

You will act as a backend and onramp specialist, leading the development of high-throughput, low-latency distributed systems that manage the entire financial lifecycle from user deposit to on-chain settlement.

Senior Frontend Engineer - High-Performance Financial Platform

Location: New York, San Francisco (Office)

Compensation: $185K - $300K

Join the Product & Platform team at a high-growth crypto derivatives exchange that is rapidly capturing market share in a multi-billion dollar annual sector. We are focused on building cutting-edge blockchain-backed financial products, starting with a multi-asset margin feature that will allow users to post variable forms of collateral. This feature is vital, as multi-asset margin comprises over 86% of accounts in the crypto industry.

You will play a key role in building and maintaining the applications that power our services. You will collaborate closely with designers, backend engineers, and product managers to deliver responsive, accessible, and high-performance user interfaces that bring complex financial tools directly to our users.

The Senior Frontend Engineer will be responsible for the full lifecycle of application development, focusing on performance, user experience, and real-time data visualization.

Robusta Technology Group (RTG) is a key driver of digital transformation by providing a holistic tech ecosystem. RTG works with its local and international partners to help build digital customer experiences, establish engineering hubs and build ventures across multiple industries and domains. In this pursuit, RTG serves as a catalyst for impact and growth through events, spaces and content focused on creating impact and growth across the different interactions.

Octopus is proud to be part of the Robusta Technology Group (RTG), a leading tech consultancy group. With a decade of experience and a successful track record of delivering over 300 projects across Europe, the Middle East, and North America, RTG has established itself as a preferred employer in the Egyptian market. Octopus and Robusta are building a bridge between Europe and Africa, creating tailored hub solutions to connect companies with top talent across the globe.

Job Overview:

A Salesforce Core Developer specialized in Data Cloud is responsible for designing, developing, and maintaining scalable data solutions that unify, transform, and activate customer data across Salesforce platforms. The role focuses on leveraging Data Cloud’s data models, harmonization capabilities, and activation tools to enable real-time insights, personalization, and cross-cloud integrations.

Job Responsibilities:

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.

We are currently hiring a Part-Time MarTech Specialist for a digital insurance company in KSA on a remote, 1-year contract (subject to extension), offering an exciting opportunity to lead high-impact performance marketing campaigns within a dynamic and data-driven environment.

Role Overview

We are seeking a highly skilled Part-Time MarTech Specialist to manage, optimize, and enhance Tree’s marketing technology ecosystem. This role ensures accurate data collection, seamless integrations, and reliable tracking across all marketing and product channels. The ideal candidate is detail-oriented, analytical, and deeply experienced with MarTech tools and tracking infrastructures.

Responsibilities

Mobile Engineer (Flutter/Dart) - Decentralized Trading Platform

Location: Remote - US or Europe remote. Must overlap with ET by 4 hours.

Compensation: $140K - $300K

We are a well-funded, innovative financial technology company on a critical mission: to enable anyone with a digital wallet to trade stocks, commodities, currencies, and crypto with unprecedented transparency. We are replacing the opaque, offshore brokerage model with a transparent, permissionless trading stack built entirely on-chain. Every transaction, deposit, and withdrawal is verifiable through open, auditable code. We have secured significant backing from top-tier institutional and crypto-native investors.

We are seeking a highly proficient Mobile Engineer to own and build our native mobile trading experience from the ground up. You will use Flutter and Dart to deliver a high-performance, cross-platform application (iOS and Android) that adheres to strict architectural standards and seamlessly integrates with our on-chain protocols.

Responsibilities:

Lead Frontend Engineer - Decentralized Trading Platform (New York / Full-Time)

Location: New York City (Hybrid)

Compensation: $180K - $300K

We are a well-funded, ambitious technology company on a mission to completely transform how financial markets operate. Our goal is simple: to enable anyone with a digital wallet to trade stocks, commodities, currencies, and crypto with complete transparency. We are replacing the opaque, offshore brokerage model with a transparent, permissionless trading stack built entirely on-chain. Every trade, deposit, and withdrawal is verifiable through open, auditable code. We've secured significant backing from top-tier venture capital and crypto-native investors.

We are seeking a Lead Frontend Engineer to take complete ownership of the client-side architecture for our core trading interface. You will be the technical leader for the frontend team, driving technical decision-making and ensuring a high-performance, resilient user experience for real-time trading. This role requires deep expertise in modern React/Next.js and mastery of complex Web3 integrations.

Key Responsibilities:

Infrastructure & Platform Engineer Job Posting

Location: New York, San Francisco (Office)

Compensation: $185K - $400K

Join a cutting-edge team building high-performance financial systems on a rapidly growing platform! We are seeking an experienced Infrastructure & Platform Engineer to help shape the core components of our scalable, real-time infrastructure.

You will be joining our Infrastructure & Platform team, which is focused on designing, deploying, and operating core components—including compute, storage, and networking—for scalable, high-performance systems and services. Your work will directly support a transformative project that is critical to the broader crypto derivatives market, giving users more flexibility in collateral management and expanding the capabilities of our platform.

What You'll Do:

Join Mercier Consultancy MD as a Live Expert specializing in the high-tech industry, where you will have the exciting opportunity to work in Greece! This role is perfect for individuals who are passionate about technology and have a knack for assisting customers. As a Dutch-speaking Live Expert, you will engage with clients in real-time, providing support, troubleshooting, and expert advice on a range of high-tech products and services.

Key Responsibilities

• Provide exceptional customer support through live chat, video calls, and other communication channels in Dutch.
• Assist clients with inquiries regarding high-tech products, offering expert guidance and troubleshooting assistance.
• Identify customer needs and tailor solutions to enhance their experience with our products and services.
• Stay updated on the latest high-tech trends, products, and company offerings to provide informed support.
• Collaborate with technical teams to resolve complex issues and escalate when necessary.
• Maintain accurate records of customer interactions and feedback for continuous improvement.

Requirements