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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Software Engineer - C#/.NET Backend Developer - **Company:** Jack Henry & Associates, Inc - **Location:** Monett, MO, United States (Remote available) - **Experience:** Experienced - **Contract:** Permanent contract - **Skills:** Testing (Software), C (Programming Language), .NET Framework, Application Programming Interfaces (APIs), Agile Methodology, Artificial Intelligence, Amazon Web Services, Systems Engineering, User Authentication, Microsoft Azure, Batch Processing, Business Systems, C Sharp (Programming Language), Software as a Service, Cloud Computing, Cloud Database, Cloud Engineering, Software Quality, Code Review, Cyber Security, Information Systems, Databases, Continuous Delivery, Continuous Integration, Data Security, Database Design, Database Schema, Software Design Patterns, DevOps, Distributed Systems, Github, Microsoft Software, Microsoft SQL Server, MySQL, Payment Gateway, Performance Tuning, Scrum Methodology, Systems Development Life Cycle, Query Optimization, Cloud Services, Software Construction, Software Engineering, SQL Stored Procedures, Systems Integration, Datadog, Enterprise Software Applications, System Availability, Delivery Pipeline, Grafana, AWS Lambda, Infrastructure as Code (IaC), Backend, Event Driven Architecture, Containerization, Information Technology, Enterprise Integration, Cloudwatch, Restful APIs, Amazon Simple Queue Service (SQS), Terraform, Microservices - **Published:** October 3, 2026 - **Apply:** https://www.careerbuilder.com/job-details/software-engineer-iii-backend-c-monett-mo--7c555f58-aef7-42f7-8df6-e092c79ececf ## About the Role * Bachelor's degree in Computer Science, Software Engineering, Information Systems, or related technical field. * 4 years of software development experience, including: * 2+ years developing enterprise applications using C# and .NET. * 2+ years designing and supporting RESTful APIs and backend services. * Experience building large-scale batch processing applications. * Strong experience designing and implementing event-driven architectures and asynchronous processing patterns. * Hands-on experience with AWS cloud services, including EventBridge, Lambda, SQS, SNS, ECS, CloudWatch, and related technologies. * Proven experience integrating with payment processors, banking systems, ACH networks, or payment gateways. * Experience working with MySQL and SQL Server, including: * Database schema design. * Query optimization. * Stored procedures and functions. * Performance tuning. * Experience leveraging AI tools and technologies to improve software development, testing, troubleshooting, and operational efficiency. * Excellent analytical, troubleshooting, and problem-solving skills. * Strong verbal and written communication skills. What would be nice for you to have: * Experience with Microsoft Orleans and virtual actor-based distributed systems. * Experience building microservices architectures. * Familiarity with Terraform, Infrastructure as Code (IaC), or cloud automation tools. * Experience implementing monitoring and observability solutions using CloudWatch, OpenTelemetry, Grafana, Datadog, or similar platforms. * Experience working in regulated financial services or payment processing environments. * Knowledge of CI/CD pipelines, GitHub Actions, Azure DevOps, or similar deployment platforms. * Familiarity with security best practices, authentication, authorization, and secure software development principles. * Experience supporting high-availability systems requiring 24x7 operational support., AWS Lambda, Agile Programming Methodologies, Amazon Web Services (AWS), Analysis Skills, Application Programming Interface (API), Artificial Intelligence (AI), Authentication, Automation, Backend as a Service (BaaS), Backlog Prioritization, Banking Services, Best Practices, Business Solutions, C Programming Language, Cloud Architecture, Cloud Computing, Code Reviews, Communication Skills, Computer Science, Continuous Deployment/Delivery, Continuous Integration, Credit Union, Database Design, Database Technology, Design Patterns Programming Methodologies, DevOps, Distributed Computing, Enterprise Applications, Financial Services, GitHub, High Availability, Identify Issues, Information Technology & Information Systems, Information/Data Security (InfoSec), Mentoring, Microservices, Microsoft .NET, Microsoft C# (C Sharp), Microsoft Product Family, Microsoft SQL Server, Microsoft Windows Azure, MySQL, Network Integration, On Call, Operational Strategy, Operational Support, Payment Processing, Performance Tuning/Optimization, Presentation/Verbal Skills, Problem Solving Skills, Process Capability, Production Support, Productivity Management, Quality Assurance, Query Optimization, REST (Representational State Transfer), Root Cause Analysis, Scalable System Development, Simple Queue Service (SQS), Software Development, Software Development Lifecycle (SDLC), Software Engineering, Software Testing, Sprint Planning, Standup Meetings, Stored Procedures, Support Documentation, Sustainability, Systems Engineering, Technical Writing, Test Plan/Schedule, Testing, Willing to Travel, Work From Home, Writing Skills ## Description Jack Henry, provides advanced bill payment and money transfer solutions to banks and credit unions. We offer modernized smart technology, including AI driven, security, cloud-based software, and fraud monitor, to deliver engaging payment solutions to customers. Our solutions help financial institutions to meet the payment expectations of today and the payment innovation needs of tomorrow. Payments become smarter, engaging, and predictive with Payrailz., We are looking for a software engineer who combines strong backend development expertise with a passion for cloud technologies, distributed systems, and modern engineering practices. The ideal candidate is comfortable designing scalable event-driven solutions, solving complex technical problems, and taking ownership of systems that require both innovation and operational excellence., We are seeking an experienced Software Engineer - C#/.NET Backend Developer to join our Payment Processing team in a full-time, fully remote capacity. In this role, you will design, develop, and support high-performance, cloud-native backend services, APIs, and large-scale batch processing solutions that power critical payment transactions. You will play a key role in modernizing and scaling our payment platform using AWS cloud technologies, event-driven architecture, distributed systems, and AI-assisted development practices, while stabilizing and scaling existing payment processing platform. This position may be worked remotely within the United States, with the exception of California. This position is ineligible for immigration sponsorship and support. Please do not apply if at any time you will need immigration support now or in the future (i.e., H-1B, PERM). All positions, regardless of location, may require an onsite interview or in-person onboarding requirement to verify your identity. What you'll be responsible for: * Design, develop, and maintain scalable backend services and APIs using C#/.NET. * Build and support event-driven applications utilizing AWS services such as EventBridge, Lambda, SQS, SNS, Step Functions, ECS, and related cloud-native technologies. * Design and implement high-volume batch processing systems capable of handling large-scale payment workloads efficiently and reliably. * Develop secure and resilient payment processing solutions that integrate with banking networks, payment gateways, and third-party service providers. * Participate in architecture discussions and contribute to strategic modernization initiatives. * Define and promote engineering standards, best practices, and design patterns for backend development. * Collaborate closely with Product Owners, QA, Operations, and other engineering teams throughout the software development lifecycle. * Perform code reviews and mentor engineers on backend development, cloud architecture, and software engineering best practices. * Leverage AI tools and modern engineering practices to improve development productivity, software quality, and operational efficiency. * Create and maintain technical documentation, test plans, and operational support guides. * Participate in Agile ceremonies including sprint planning, daily stand-ups, backlog refinement, and retrospectives. * Provide production support, troubleshooting, root cause analysis, and participate in on-call rotations for critical business systems. * May perform other job duties as assigned., No one will be subject to, and Jack Henry prohibits, any form of discipline, reprisal, intimidation, or retaliation for good faith reports or complaints of discrimination of any kind, pursuing any discrimination claim, or cooperating in related investigations. Requests for full corporate job descriptions may be requested through the interview process at any time. 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