Join the Team Making Possibilities Happen
If you’ve ever used an ATM, paid a bill through your phone, sent money to a friend or shopped online, chances are your transaction was safeguarded and processed using our software. Now it’s your turn to serve the payment needs of organizations and people the world over.
Job Summary:
We are seeking a seasoned and visionary Senior Windows Systems Engineer with deep expertise in Active Directory (AD), DNS, and adjacent Microsoft infrastructure technologies. Implements, configures and plays a lead role in the design of complex systems for internal and external customers. Assists in performing analysis on existing systems as well as system maintenance. Determines system specifications, input/output processes and working parameters for hardware/software compatibility. Coordinates design of subsystems and integration of total system. Identifies, analyzes and resolves program support deficiencies.
Job Responsibilities:
- Provides AOD centric architectural and operational oversight for the development of new or enhanced services and/or products.
- Engineers and configures complex technical solutions for applications/systems implementations and upgrades based on specific business requirements. Solutions may be new, existing, in-house, third party or a combination.
- Researches and evaluates new technologies and software products to determine feasibility and desirability of incorporating their capabilities within the company's products.
- Formulates and executes test plans for Proof of Concepts.
- Supports development and product teams by providing high-level analysis and AOD environment-based design reviews, performance, scalability and benchmark test guidance, and subject matter expertise in technology and design.
- Perform other duties as assigned
- Understand and adhere to all corporate policies to include but not limited to the ACI Code of Business Conduct and Ethics.
Knowledge, Skills and Experience required for the job:
- Bachelor's degree in computer science or equivalent experience.
- 5+ years of technical experience in product architecture and/or production IT environments
- Previous experience in designing and implementing systems with a focus on scalability and high availability.
- Experience with configuring and troubleshooting production environments, with at least 2 years in a senior-level role.
- Deep experience in Windows Server, Active Directory, DNS, Group Policy, and PowerShell.
- Proven track record of designing and implementing high-availability, multi-site, and secure Windows infrastructure solutions.
- Strong understanding of authentication protocols (Kerberos, NTLM, LDAP), ADFS, Azure AD, and PKI.
- Experience leading large-scale migrations, upgrades, and integration projects.
Preferred Knowledge, Skills and Experience needed for the job:
- Experience with hybrid identity and cloud integration (e.g., Azure AD Connect, Microsoft Entra).
- Familiarity with Zero Trust architecture, conditional access, and identity governance.
- Knowledge of automation frameworks, infrastructure-as-code, and DevOps practices.
- Experience with compliance frameworks (e.g., NIST, ISO, SOX) and security hardening of Windows environments.
Work Environment:
- Standard work environment
- Majority of time spent on PC (Phys. Req.)
- Travel required, may be domestic or international
- Weekend and off-hours support may be required
Benefits: In return for your expertise, we offer growth, opportunity, and a competitive compensation and benefits package in a casual work environment.
Are you ready to help us transform the world of electronic payments? To learn more about ACI Worldwide, visit our web site at www.aciworldwide.com Job ID (Requisition #16393)
ACI Worldwide is an AA/EEO employer in the United States, which includes providing equal opportunity for protected veterans and individuals with disabilities, and an EEO employer globally
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About UsACI Worldwide is a global leader in mission-critical, real-time payments software. Our proven, secure and scalable software solutions enable leading corporations, fintechs and financial disruptors to process and manage digital payments, power omni-commerce payments, present and process bill payments, and manage fraud and risk. We combine our global footprint with a local presence to drive the real-time digital transformation of payments and commerce.Skills Required
- Bachelor's degree in computer science or equivalent experience.
- 5+ years technical experience in product architecture and/or production IT environments.
- Experience designing and implementing scalable, high-availability systems.
- At least 2 years in a senior-level role configuring and troubleshooting production environments.
- Deep experience with Windows Server, Active Directory, DNS, Group Policy, and PowerShell.
- Proven track record designing and implementing high-availability, multi-site, secure Windows infrastructure solutions.
- Strong understanding of authentication protocols (Kerberos, NTLM, LDAP), ADFS, Azure AD, and PKI.
- Experience leading large-scale migrations, upgrades, and integration projects.
ACI Worldwide Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about ACI Worldwide and has not been reviewed or approved by ACI Worldwide.
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Healthcare Strength — Health, dental, and vision coverage are complemented by HSA options, disability insurance, AD&D, and wellbeing programs. Offerings span core medical protection with added wellness support.
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Retirement Support — A 401(k) with company match and pension/retirement options support long‑term savings. Additional programs such as an employee stock purchase plan contribute to financial security over time.
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Flexible Benefits — A flexible, hybrid office culture with work‑from‑home options and adaptable schedules supports work‑life balance. Paid time off and country‑tailored packages allow alignment of benefits to local needs.
ACI Worldwide Insights
What We Do
ACI Worldwide is a global software company that provides mission-critical real-time payment solutions to corporations. Customers use our proven, scalable and secure solutions to process and manage digital payments, enable omni-commerce payments, present and process bill payments, and manage fraud and risk. We combine our global footprint with local presence to drive the real-time digital transformation of payments and commerce.
