Senior .NET Engineer — Payments (Remote)

FullStack; Comisión de Fomento de Perú; Remote; ARS 168,108,000 - 244,521,000; Full time

Benefits offered by this job

100% remote work

Work with startups & Fortune 500

Continuing education opportunities

Job summary

FullStack is seeking a Senior .NET Engineer - Payments for a 6-month engagement, working remotely with U.S. clients.

You will join directly into our client's team, collaborating daily with designers and engineers to deliver reliable backend services and payment workflows in production. The ideal candidate has 5+ years of professional software development, strong .NET/C#, and experience building financial ledgers or payment flows.

Qualifications

• 5+ years of professional software development experience.
• Experience deploying .NET/C# backend systems in production.
• Experience with payments flows or financial ledgers.
• Proven ability to manage complex concurrency in distributed systems.
• English proficiency required.

Responsibilities

• Join client team and work with designers and engineers on a daily basis.
• Develop reliable backend services and payment workflows.
• Collaborate with cross-functional teams to deliver production-grade features.

Skills

.NET/C# backend

5+ years exp

Advanced English

Payments flow

Distributed systems concurrency

Idempotency

Azure

Gen AI tools

CI/CD

Agile/Scrum

Ownership

Large systems

Client focus

Education

Bachelor's degree

Tools

Claude Code

Gemini CLI

Codex

Copilot CLI

Job description

FullStack is seeking a Senior .NET Engineer - Payments for a 6-month engagement, working remotely with U.S. clients.

You will join directly into our client's team, collaborating daily with designers and engineers to deliver reliable backend services and payment workflows in production. The ideal candidate has 5+ years of professional software development, strong .NET/C#, and experience building financial ledgers or payment flows.