Sr Software Engineer

Powering the world's payments ecosystem

ACI powers the payments ecosystem - globally, and you power ACI.

You'll innovate, collaborate, and grow - in an energetic technology culture with decades of proven success.

ACIers - in all roles and levels - are truly your colleagues and many are your friends.

Our size and reach allow you to see the global impact of your work.

You are visible, your talents are valued, and you are empowered to shape the future of payments.

As a Sr Software Engineer in Omaha, NE, you will join a diverse, passionate team, dedicated to powering the world's payments ecosystem!

ACI Worldwide is looking to fill one Sr.

Software Engineer position based out of its Elkhorn, Nebraska office located at 6060 Coventry Drive, Elkhorn, NE 68022.

Job Summary: Design, develop, and deliver a large-scale enterprise micro-frontend platform for ACI's card authorization and unified payment framework product lines.

This is a hands-on software development role with design responsibilities.

The incumbent will write code, design systems, build platform infrastructure, develop shared frameworks, and create automation tooling while guiding a high performing team and coordinating with multiple cross-functional API teams to deliver mission-critical fintech systems.

Utilize deep expertise in Angular, micro-frontend architecture, monorepo management, and card-based payment processing, and a track record of designing and coding enterprise-scale platforms, not just features within them.

Job Accountabilities: Design and develop a large-scale enterprise micro-frontend platform using Angular, Nx monorepo, and Module Federation with multiple independently deployable applications and shared libraries serving ACI's card authorization and payment orchestration product lines.

Define and enforce the front-end component architecture using layered patterns with strict dependency boundaries, automated constraint enforcement, accessibility (WCAG compliance), and internationalization (i18n).

Program reusable, production-grade Angular components, services, and shared libraries.

Write and maintain TypeScript code across multiple application codebases, translating complex business logic into clean, testable frontend code.

Build standardized, reusable component patterns for common CRUD interactions with built-in filtering, sorting, pagination, and error handling to establish UI consistency and accelerate feature delivery.

Program secure, resilient user interfaces following OWASP Top 10 guidelines, ensuring frontend code does not introduce vulnerabilities such as XSS, CSRF, insecure storage, or broken access control.

Ensure secure handling of login, logout, token refresh, and session expiration flows.

Participate in threat modeling and secure design discussions for frontend features, especially those handling sensitive data, financial transactions, or privileged user actions.

Work with cross-functional API teams to translate business requirements into technical specifica...