Software Engineer III: Backend C#

Jack Henry; EE. UU.; A distancia; USD 120.000 - 160.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Fully remote

Remote-first culture

Onsite interview possible

Descripción de la vacante

Jack Henry is hiring a fully remote Backend Engineer in the United States to design, build, and scale cloud-native services powering high-volume payment transactions. You will work with C#/.NET, AWS, and event-driven architectures to modernize a payments platform and support distributed workloads.

The role emphasizes secure, scalable backend design, microservices, and collaboration on architecture while enabling AI-assisted development to boost velocity and code quality.

Formación

• Proven backend experience with C#/.NET in cloud-based environments.
• Hands-on AWS experience and event-driven architectures.
• Experience with large-scale batch processing and distributed systems.
• Familiarity with payment processing concepts and financial networks.

Responsabilidades

• Design, develop, and maintain scalable backend services and APIs using C#/.NET
• Build and support event-driven applications leveraging AWS services such as EventBridge, Lambda, SQS, SNS, Step Functions, and ECS
• Design and implement high-volume batch processing systems capable of handling large-scale payment workloads reliably and efficiently
• Develop secure, resilient payment processing solutions that integrate with banking networks, payment gateways, and third-party providers
• Participate in architecture discussions and contribute to engineering best practices across the team
• Apply AI-assisted development practices to improve velocity and code quality

Conocimientos

C#/.NET

AWS

Distributed systems

Microservices

Payments domain knowledge

Herramientas

Docker

ECS

Terraform / IaC

Descripción del empleo

Role overview

A fully remote position for an experienced backend engineer to design, build, and support cloud-native services that power high-volume payment transactions. The role centers on modernizing and scaling a payment platform using AWS, event-driven architecture, and distributed systems, while stabilizing existing workloads.

Responsibilities

• Design, develop, and maintain scalable backend services and APIs using C#/.NET
• Build and support event-driven applications leveraging AWS services such as EventBridge, Lambda, SQS, SNS, Step Functions, and ECS
• Design and implement high-volume batch processing systems capable of handling large-scale payment workloads reliably and efficiently
• Develop secure, resilient payment processing solutions that integrate with banking networks, payment gateways, and third-party providers
• Participate in architecture discussions and contribute to engineering best practices across the team
• Apply AI-assisted development practices to improve velocity and code quality

Requirements

• Strong professional experience with C#/.NET backend development
• Hands-on experience with AWS cloud services and event-driven architecture
• Familiarity with distributed systems and large-scale batch processing
• Understanding of payment processing concepts and integration patterns with financial networks
• Experience designing and operating microservices or service-oriented systems
• Ability to work remotely within the United States (excluding California); immigration sponsorship is not available for this role

Nice to have

• Experience with containerization (ECS, Docker) and infrastructure-as-code tooling
• Background in financial services or payment platforms
• Familiarity with modern DevOps, CI/CD, and observability practices

Benefits and work setup

• Fully remote within the United States (excluding California), full-time
• An onsite interview or in-person onboarding step may be required to verify identity