Full Stack Engineer - Payments & FinTech Web Applications

Location: Remote - Based in EST or GMT+1

Compensation: $120K - $150K

We are a high-growth technology company building a robust FinTech and payments platform. We are seeking an experienced Full Stack Engineer with strong product sense and deep technical expertise to design and build the secure, scalable, and high-performing web applications that power our platform. This role requires translating complex backend financial systems into intuitive, reliable user experiences.

You will own the development lifecycle of web applications from design through release, working across the full stack with an emphasis on the frontend user experience. You will collaborate closely with backend teams, ensuring that all features prioritize performance, security, and scalability. You will be expected to treat UI components and APIs as products, maintaining high standards for code quality and architectural clarity.

What You'll Do:

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:

Senior Backend Engineer - High-Volume Fintech & Payments Platform

Location: Remote - Based in LATAM / EST /Europe

Compensation: $130K - $180K

We are a technology company building the next generation of money and financial products. We are seeking a Senior Backend Engineer to design and build the core backend systems that power our fintech and payments platform. This role requires deep technical expertise in high-scale transaction systems and strong product awareness to deliver reliable, secure, and impactful solutions.

You will be responsible for the full lifecycle of our backend services, focusing on architecting, building, and operating systems that handle high-volume financial transactions securely and reliably. You will act as a technical leader, driving feature delivery and raising the engineering bar across the team while ensuring our systems align with business priorities.

Key Responsibilities:

Senior Backend Engineer - Stablecoin Infrastructure

Location: Remote - Based in EST timezone

Compensation: $175K - $225K

We are a technology company building a full-service platform that transforms how money moves. Our mission is to make digital dollars the core of a new, global financial fabric—faster, more efficient, and universally accessible. We are creating foundational infrastructure that makes issuing, managing, and integrating stable, dollar-based value on-chain seamless for developers, fintechs, and institutions. We are backed by world-class investors and are growing a team to reimagine how value moves online.

We are seeking a Senior Backend Engineer to accelerate the delivery of both critical internal tooling and high-impact customer-facing products. You will join a small, high-performance team that applies the discipline of high-performance finance to a fast-moving, crypto-native startup environment.

In this role, you will:

Engineering Manager - Intent-Based Cross-Chain Infrastructure

Location: Remote

Compensation: $180K - $200K

We are building programmable, intent-based infrastructure on a leading Layer 1 protocol, making blockchain interactions smoother, smarter, and more composable. Our work enables intent-driven execution across chains, requiring high-velocity technical delivery and strong team leadership. We are seeking an Engineering Manager to accelerate execution across projects, partner integrations, and cross-team initiatives.

This role is focused on making things happen: ensuring technical projects are delivered on time, partner integrations run smoothly, and internal teams are fully aligned. You will lead and mentor a multidisciplinary engineering team while owning technical guidance, reliability management, and strategic process implementation.

Key Responsibilities:

Position Overview
AHOY is on the lookout for a Senior Node.js Backend Developer to join our dynamic remote team. In this role, you will be responsible for designing and implementing high-performance backend services that drive our applications. You'll collaborate closely with cross-functional teams to deliver top-notch solutions and elevate our technology stack.

Key Responsibilities:

• Design, develop, and maintain robust and scalable backend services using Node.js.
• Collaborate with frontend developers to ensure effective integration of user-facing elements with server-side logic.
• Optimize applications for maximum speed and scalability.
• Implement security and data protection measures
• Participate in code reviews, mentoring junior developers, and fostering a culture of continuous improvement.
• Troubleshoot, debug, and upgrade existing systems while keeping documentation up to date.

Requirements

Requirements:

Position Overview
AHOY is looking for a talented Node.js Backend Developer to join our remote team. In this role, you will be instrumental in building and maintaining backend applications that serve as the backbone for our innovative projects. You will work closely with frontend developers and product teams to deliver efficient and scalable solutions.

Key Responsibilities:

• Develop, test, and maintain server-side applications and APIs using Node.js.
• Collaborate with cross-functional teams to define, design, and implement new features.
• Optimize applications for maximum speed and scalability.
• Write clean, maintainable code and ensure code quality through testing and documentation.
• Troubleshoot and debug applications and identify any bottlenecks.
• Stay current with emerging technologies and best practices in backend development.

Requirements

Requirements:

As a Senior Staff Software Engineer, you will shape and scale our backend platform, driving technical excellence while remaining hands-on. You’ll lead architecture, mentor engineers, and collaborate across teams to deliver cloud-native systems that are secure, scalable, and reliable.

Key Responsibilities

• Define and implement backend architecture and technical strategy.
• Own feature delivery end-to-end, ensuring performance and scalability.
• Champion engineering best practices (TDD, CI/CD, clean architecture).
• Conduct code reviews and mentor engineers to raise technical standards.
• Improve workflows, monitoring, and incident management.
• Partner with Product and stakeholders to align technical and business goals.

Requirements

Requirements

• 7+ years backend engineering, 5+ with Node.js & TypeScript in production.
• Deep expertise in AWS services (Lambda, Cognito, S3, DynamoDB, SQS/SNS).
• Proven track record with serverless, microservices, event-driven systems.
• Strong background in API design, distributed systems, debugging.
• Leadership experience in architecture decisions and team mentorship.

About the Role
We are seeking an experienced Staff Software Engineer to lead the design and delivery of secure, scalable backend systems. This is a hands-on leadership role with responsibilities spanning architecture, coding, and mentoring, while partnering closely with Product and cross-functional teams.

Key Responsibilities

• Design and build reliable, testable, production-ready backend services.
• Drive architectural decisions and own features end-to-end.
• Write clean, maintainable code with strong test coverage.
• Mentor engineers and set best practices across the team.
• Oversee system monitoring, incident response, and workflow improvements.
• Collaborate cross-functionally and contribute to hiring efforts.

Requirements

• 5+ years backend experience, 4+ years with Node.js & TypeScript.
• Strong expertise in AWS (Lambda, Cognito, S3, DynamoDB, SQS/SNS, CloudFormation).
• Experience with serverless, microservices, event-driven architectures.
• Skilled in TDD, CI/CD, REST/GraphQL APIs, secure coding.
• Proficiency in SQL and NoSQL databases.
• Startup/fast-paced environment experience preferred.

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 Sr. Backend Developer 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

Backend Development & Architecture

• Design, develop, and maintain scalable, secure backend systems using Java and Spring Boot.
• Contribute to architecture design ensuring modularity, maintainability, and high performance.
• Build and manage microservices-based architectures.

API & Integration