Senior Full Stack Developer – Core Platform

Payoneer Inc.; United States; Hybrid; USD 120,000 - 160,000; Full time

Job summary

Payoneer is hiring a hybrid, full-time software engineer to join the development team. You will build full-stack features across frontend and backend, own architecture decisions, and collaborate with DevOps and R&D.

The role emphasizes .NET backend with React, strong SQL skills, SaaS platforms on AWS, and containerized deployments with Kubernetes. You will mentor teammates and contribute to production reliability and secure practices.

Qualifications

• BSc. in computer science or equivalent degree.
• 5+ years backend development with .NET and React frontend.
• Strong SQL skills across MSSQL/Oracle/MySQL/PostgreSQL.
• Experience building SaaS platforms on AWS.
• Containerization with Docker and Kubernetes (EKS).
• Microservices experience and knowledge of design patterns.

Responsibilities

• Collaborate with DevOps and R&D teams on portal development.
• Build and maintain the Developer Portal for self-service platform engineering.
• Develop full-stack features across frontend and backend.
• Handle sensitive data within restricted access models.
• Provide technical leadership with hands-on guidance.
• Own design, development, architecture, and production deployment.

Skills

.NET backend

React frontend

Advanced SQL

AWS cloud

Kubernetes (EKS)

Message brokers (Kafka)

Microservices

OOP & design patterns

Team leadership

Agile methodologies

Education

BSc. in computer science or equivalent

Tools

AWS

Docker

Kubernetes (EKS)

RabbitMQ / Kafka

Azure DevOps

Job description

About Payoneer

Founded in 2005, Payoneer is the global financial platform that removes friction from doing business across borders, with a mission to connect the world’s underserved businesses to a rising global economy. We’re a community with over 2,500 colleagues all over the world, working to serve customers, and partners in over 190 countries and territories.

By taking the complexity out of the financial workflows–including everything from global payments and compliance to multi-currency and workforce management, to providing working capital and business intelligence–we give businesses the tools they need to work efficiently worldwide and grow with confidence.

Role summary

Hybrid
Full-time

What you’ll do

• Collaborate closely with DevOps, and other R&D teams
• Build and maintain the Developer Portal — the self-service platform engineering teams use to scaffold services, manage CI/CD, and provision infrastructure.
• Develop full-stack features across frontend and backend.
• Handle sensitive platform data responsibly within a restricted access model.
• Provide technical authority to your team by demonstrating a hands-on leadership style
• Be responsible for the overall design, development, architecture, code quality, and production environment deployment in your team

Who you are

• BSc. in computer science or equivalent
• 5+ years of experience with backend development in .Net, combined with practical experience in React.
• 5+ years of experience with advanced SQL (MSSQL/Oracle/MySQL/PostgreSQL, etc.)
• Experience with building SaaS platforms for cloud-based products, preferably AWS
• Experience with Containers and Kubernetes (K8s), preferably EKS
• Experience with Message Brokers such as RabbitMQ/SQS/Kafka, preferably Kafka
• Experience with Microservices development
• Broad knowledge of OOP and design patterns
• Team player attitude and mentality
• Experienced and passionate about managing and growing people
• Experience in engineering best practices (code reviews, testing coverage, Agile methodologies)
• Ambitious and eager to learn new things

What could set you apart

• Experience with CI/CD pipelines (Azure DevOps), infrastructure-as-code (Crossplane), and cloud provisioning (AWS).
• Experience with Domain Driven Design (DDD)

The Payoneer Ways of Working

Act as our customer’s partner on the inside

Learning what they need and creating what will help them go further.

Do it. Own it.

Being fearlessly accountable in everything we do.

Continuously improve

Always striving for a higher standard than our last.

Build each other up

Helping each other grow, as professionals and people.

We are committed to providing a diverse and inclusive workplace. Payoneer is an equal opportunity employer, and all qualified applicants will receive consideration for employment no matter your race, color, ancestry, religion, sex, sexual orientation, gender identity, national origin, age, disability status, protected veteran status, or any other characteristic protected by law. If you require reasonable accommodation at any stage of the hiring process, please speak to the recruiter managing the role for any adjustments. Decisions about requests for reasonable accommodation are made on a case-by-case basis.