We are building an ecosystem that combines mining, payments, Bitcoin finance, and education and making it simple and secure for users worldwide to earn and use Bitcoin daily.

We are looking for a Senior / Lead Backend Developer who can take ownership of complex backend systems, drive architectural decisions, and build scalable fintech infrastructure.

Responsibilities

• Lead development of a cryptocurrency payment gateway and related financial services
• Design and implement high-load, scalable backend architectures
• Own integration and orchestration of multiple third-party payment providers
• Drive technical decisions and architecture design across services
• Build and maintain microservices infrastructure with clear separation of concerns
• Optimize system performance under heavy load (latency, throughput, fault tolerance)
• Participate in system design, data modeling, and load calculations
• Collaborate with product, DevOps, and other teams to deliver reliable solutions
• Mentor engineers and influence engineering standards and best practices

Requirements

Location: Remote - Europe

Remote | Full-time

Compensation: $110K - $125K

We are hiring on behalf of our client who is a premier infrastructure provider within the decentralized web (Web3) ecosystem, serving as the critical connectivity layer for tens of thousands of applications and millions of users globally. Having established a dominant market position, the organization is now expanding its horizons by launching a sophisticated payments solution.

This new initiative enables merchants and payment providers to utilize blockchain rails for stablecoin checkouts, payouts, and deposits, already reaching millions of terminals worldwide through strategic global partnerships.

The data systems supporting this infrastructure are foundational to the company's success. As the organization transitions from MVP pipelines to a scalable production architecture, there is a need for a Senior Data Engineer to join the team. This individual will help design and operate the data foundation behind a global payments network, ensuring that systems tracking wallet connections, transaction health, and financial reconciliations are as reliable as the payment flows themselves.

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 Salesforce Consultant for one of our partner organizations in KSA, offering the opportunity to contribute to exciting projects within a dynamic and forward-thinking environment.

The Salesforce Consultant / Administrator is responsible for overseeing the implementation and ongoing management of Theeb’s Salesforce platform. This role coordinates closely with the external implementation vendor during the project execution phase and assumes full ownership of system administration post go-live.

The position ensures Salesforce effectively supports business objectives, integrates seamlessly with core enterprise systems, and delivers high levels of user adoption, data quality, and operational efficiency.

Main 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:

Total Resourcing Ltd are looking for a CANDU Refurbishment specialist to fulfil the role of Engineering Superintendent (BOP/TG/Common). They will be providing engineering oversight for the Refurbishment Project, ensuring that all engineering, design, and implementation activities are delivered safely, on time, within budget, and in compliance with applicable standards and procedures.

Location: Remote - Remote - Based In ET+2 / -3, NY Preferred

Remote | Full-time

Compensation: $170K - $220K

Our client is a venture-backed financial technology firm dedicated to transforming the global movement of money through stablecoin infrastructure. Backed by premier investors such as Paradigm and Dragonfly, the organization is building a full-service platform designed to make issuing, managing, and integrating digital dollars seamless for developers, fintechs, and institutional partners.

The team operates with the discipline of high-performance finance and the agility of a crypto-native startup. They are currently seeking a Senior Infrastructure Engineer to design and build an internal platform that empowers product teams to deploy software with confidence, reliability, and speed. This individual will bring a software engineering mindset to infrastructure by building reusable abstractions, internal services, and developer tooling that reduce cognitive load across the engineering organization.

This is a remote-friendly role with a preference for candidates who can maintain a majority overlap with Eastern Time (ET) business hours.

Key Responsibilities

Senior Full Stack Engineer

Location: Remote - Based in NY

Remote | Full-time

Compensation: $175K - $225K

Our client is a venture-backed financial technology firm on a mission to transform the global movement of money. By building a full-service platform for the issuance, management, and integration of stablecoins, the organization aims to provide a faster, more efficient, and more transparent financial fabric. The platform makes digital dollars programmable, composable, and ubiquitous, serving as foundational infrastructure for developers, fintechs, and institutions alike.

The engineering team combines the discipline of high-performance finance with the creative agility of a crypto-native startup. As a Senior Fullstack Engineer, the successful candidate will take end-to-end ownership of features and products across the entire stack—from user interfaces to robust backend infrastructure. This role requires an engineer with strong product taste, a bias toward MVP thinking, and the ability to navigate complex backend systems and API designs with equal proficiency. This is a remote-first position. C

Key Responsibilities

Senior Web3 Software Engineer

Location: Europe/US/Latam

Remote | Full-time

Compensation: $170K - $195K

Our client is a pioneer in the blockchain sector, developing a high-performance operating system designed to redefine scalability and throughput for Ethereum. By combining parallel transaction execution with advanced state minimization, our client’s platform overcomes traditional protocol limitations to provide a groundbreaking environment for decentralized development.

Since its initial launch in 2019, the organization has remained dedicated to enhancing Ethereum's ecosystem through technical innovation, including the creation of a bespoke virtual machine and a specialized programming language. The team is a globally dispersed group of innovators committed to shaping the future of blockchain technology through secure, decentralized, and high-throughput solutions.

Our client is seeking a Senior Web3 Software Engineer to lead the development of high-performance decentralized applications (dapps). This individual will own major product surfaces end-to-end—from frontend interfaces to on-chain integrations—collaborating across product, design, and smart contract teams to deliver secure and intuitive experiences for traders and users.

Key Responsibilities

On behalf of our client, we are seeking experienced Electrical Engineers to support power generation utilities and major industrial customers.

The successful candidate will provide electrical design engineering expertise across a range of generation projects. Senior candidates will additionally provide technical leadership and guidance to multidisciplinary teams.

You will be responsible for managing the full design lifecycle — from concept development and detailed engineering through to field implementation, commissioning, and close-out — ensuring compliance with nuclear and industrial safety standards.

A strong understanding of nuclear power plant design and operation is required.

Key Responsibilities

Staff Software Engineer (Backend)

Location: San Francisco, New York, or Remote (US)

On-site/Remote| Full-time

Compensation: $225K – $300K 

Our client is a high-growth, venture-backed organization (YC W24) that has raised over $35M to pioneer the next generation of autonomous digital workers. Unlike traditional chatbots or copilots, our client builds fully autonomous "AI employees" that research leads, manage complex outbound sequences, handle deliverability infrastructure, and self-optimize through behavioral patterns.

Currently at $8M+ ARR and scaling rapidly, the organization is deep in the development of its next-generation platform—a step change in the capabilities of AI agents. The backend is the core of this transformation, processing millions of signals to facilitate autonomous decision-making. Our client is seeking a Staff Software Engineer to serve in a foundational role, owning major segments of the platform infrastructure and driving high-throughput AI orchestration. The engineering culture is flat, high-velocity, and results-oriented. There is no red tape; engineers are expected to own outcomes end-to-end, from architecture and design to deployment and monitoring.

Key Responsibilities