2mo ago

Senior Software Engineer, Backend

Remotefull-timesenior

EngineeringBackend Developer

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Quick Summary

Key Responsibilities

Design, build, and maintain scalable backend services using C#/.NET Develop the core infrastructure that powers payment routing, connector management, and platform configuration. Design secure,

Requirements Summary

Optimize for performance, accessibility, and cross-browser compatibility. What we are looking for: 5+ years of experience building production backend services. Strong experience with C# and the .

Technical Tools

EngineeringBackend Developer

About the Role

~1 min read

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

Raise the bar: Lead code reviews, champion backend standards, and drive architectural decisions that keep the codebase healthy as we scale.

Multiply the team: Mentor engineers around you and elevate backend engineering quality across the organization through pairing, documentation and leading by example.

Own the full lifecycle: Work across requirements, implementation, testing, and deployment. We don't throw things over the wall here.

Sweat the details: Optimize for performance, accessibility, and cross-browser compatibility.

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.

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. You'll stretch yourself every day, learn a ton, grow alongside the company, and have a lot of fun building Payabli with us. We're a values driven company that cares deeply about our team, partners, and customers. Our north star values are:

Responsibilities

~1 min read

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

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

Principals only. No external agency submissions. Candidates must apply directly; We will not accept submissions from third-party recruiters or staffing agencies.