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About the Role

We are looking for a Senior Software Engineer, Backend to help build the backend of Payabli's interfaces and integrations. In this hands-on role, you'll design and build services for intelligent payment routing, connector management, token intelligence, and platform configuration. You'll work on complex, high-scale systems, collaborate with Product, AI, and Engineering teams, mentor junior engineers, and shape the architecture of a platform used by enterprise customers.

Responsibilities

Design, build, and maintain scalable backend services using C# and .NET.
Develop the core infrastructure that powers payment routing, connector management, and platform configuration.
Design secure, extensible APIs that support both customer-facing applications, direct integrations and AI-powered workflows.
Build reliable, observable services that process high-volume payment transactions with performance and resilience in mind.
Contribute to platform architecture, engineering standards, and technical decision-making.
Continuously improve system performance, security, reliability, and developer experience.
Collaborate closely with other service owning teams to integrate via APIs and real-time data streams, ensuring seamless data flow across the stack & overall platform.
Lead code reviews, champion backend standards, and drive architectural decisions.
Mentor engineers around you and elevate backend engineering quality across the organization through pairing, documentation and leading by example.
Work across requirements, implementation, testing, and deployment.
Optimize for performance, accessibility, and cross-browser compatibility.

Requirements

5+ years of experience building production backend services.
Strong experience with C# and the .NET ecosystem.
Strong experience in Payments, FinTech, or other high-volume transaction processing environments.
Experience designing and building RESTful and/or event-driven APIs.
Strong understanding of relational databases, data modelling, and distributed systems.
Experience building secure, scalable cloud-based applications.
Excellent problem-solving, communication, and collaboration skills.
Ability to provide technical leadership while remaining hands-on in development.

Skills

C#
.NET
RESTful APIs
Event-driven APIs
Relational databases
Data modelling
Distributed systems
Cloud-based applications

Location

Remote

Work Type

Full-time

Experience Level

Senior

Benefits

Competitive salary
Stock options with the potential to unlock more equity as we grow
Flexible PTO and paid parental leave
Medical, dental, & vision insurance
401K, HSA, pre-tax savings programs

About the Company

Payabli is a next-generation Payments Infrastructure and Monetization Platform purpose-built for vertical software companies.
Through a single, developer-friendly API with low-code embedded payment components, Payabli enables platforms to seamlessly embed, monetize, and operationalize payments—making payments a core part of their platform and business model.
By unifying payment acceptance, payment issuance, and advanced payment operations tooling, Payabli empowers software companies to manage and move money through a single infrastructure stack that delivers total control over the payments experience.
Built to scale with PCI DSS 4.0 and SOC 2-compliant security, Payabli’s infrastructure delivers enterprise-grade reliability and trust while leveraging AI-driven intelligence to enhance visibility, streamline operations, and drive revenue growth.
Backed by leading fintech investors including QED Investors, Fika Ventures, TTV Capital, and Bling Capital, Payabli is setting the standard for embedded payments infrastructure powering the next generation of vertical SaaS.
At Payabli, you'll have a front row seat into building a high-growth venture backed fintech company.
As a senior leader in Operations, you'll shape how the organization scales and be the driving force behind our AI-first operations strategy — directly influencing how we build, automate, and optimize for the future.
We're a values driven company that cares deeply about our team, partners, and customers.
Our north star values are: Team Love = Customer Love, Run to the Fire, Little Things Count, Truth Seekers, Relentlessly Curious.
We build technology that gets noticed and a workplace where people want to grow their careers.
Our work has been recognized by some of the industry’s most respected organizations, including the 2026 Forbes Fintech 50 list, which highlights the most innovative private companies in financial technology, Inc.’s 2025 Best Workplaces, and Built In’s 2026 Best Places to Work in Miami.

Equal Opportunity

Payabli is an equal opportunity employer and values a diverse, inclusive workplace.