Senior Developer - Emerging Payments (Zelle / ACH / TCH / Wire)
The Mom Project
Software Engineering
Chicago, IL, USA
Posted on May 17, 2026
The Mom Project is proud to support our client, a retail banking institution based in Chicago, with their search for a Senior Developer to join their team!
Responsibilities
Responsibilities
- Design, develop, and maintain middleware and back-end systems supporting payment rail platforms
- Architect scalable, high-performance, and stable system capabilities for payment processing solutions
- Design and maintain responsive system architectures, databases, servers, APIs, and integrations with third-party applications
- Build dynamic software products and applications across front-end, middleware, and back-end components
- Manage software development activities from conception through deployment and post-production support
- Maintain, enhance, and upgrade software applications following deployment
- Oversee the full software development lifecycle, including analysis, development, testing, deployment, and maintenance
- Guide and support software engineering teams in application development and deployment activities
- Oversee automated testing processes and analyze testing outcomes
- Modify, troubleshoot, and test enhancements to existing applications and systems
- Collaborate with cross-functional teams to support technical delivery and operational goals
- Provide technical consulting, analytical support, and problem resolution for complex system issues
- Ensure cross-platform compatibility and resolve issues during testing and production phases
- Contribute to technical documentation and system design artifacts
- Support Agile and Waterfall software development methodologies
- Post-secondary degree in Computer Science, Engineering, Information Technology, or related field preferred
- 5-7 years of relevant software development experience or equivalent combination of education and experience
- Experience working within financial institutions and a strong understanding of payment flows for Wires, ACH, TCH, or Zelle platforms
- Strong experience with backend technologies and frameworks, including Node.js and/or Java
- Experience with AWS services, including serverless and event-driven/reactive architectures
- Experience working with XML/XSD technologies
- Experience with databases and caching technologies, including DynamoDB, Oracle, PostgreSQL, and other NoSQL or RDBMS platforms
- Experience using version control and collaboration tools such as GitHub, JIRA, Confluence, and SharePoint
- Familiarity with AI tools such as GitHub Copilot and AWS Bedrock
- Strong understanding of SDLC methodologies, including Agile and Waterfall
- Strong technical writing and documentation skills
- Strong analytical, problem-solving, organizational, and collaboration skills
- Strong verbal and written communication skills
- Experience with data-driven decision making
- Ability to work independently and manage non-routine technical challenges
- Experience with ISO message specifications
- Experience with front-end technologies and frameworks
- AWS Certified Solutions Architect Associate certification
- AWS Certified Developer certification
- Monday - Friday, 40 hours/week
- On-site in Chicago, IL, and Tempe, AZ