Working at ACI Worldwide | Glassdoor

ACI Worldwide Overview

Naples, FL
1001 to 5000 employees
Company - Public (ACIW)
Computer Hardware & Software
$1 to $2 billion (USD) per year
ACI Worldwide helps money go mobile. The company develops e-payment and electronic funds transfer (EFT) software for companies around the world. Customers use its software to process transactions involving ATMs, credit and debit cards, online banking and payment processing ... Read more

Company Updates

  • ACI recently hosted a "boot camp" in Watford for employees to learn more about ACI's latest innovations, product messaging and go-to-market strategy. Learn with us:

  • ACIers from the Yoshkar-Ola and Kazan offices take to the great outdoors for a two-day river-rafting trip designed to promote team building and collaboration. Learn more about the 1ACI culture:

    Career and Job Opportunities at ACI Worldwide

    Rewarding work experience, competitive compensation and benefits an company growth. Find your perfect job opportunity in a fast moving payments environment

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ACI Worldwide – Why Work For Us?

ACI combines a global perspective with local presence to tailor solutions for each customer. Our proven products, domain expertise and 40 years of experience have earned us a position as trusted provider of gold standard payments solutions.

With more than 4,500 employees worldwide and offices in principal cities around the globe, ACI now has one of the most diverse and robust product portfolios in the industry, with application software spanning the length of the payments value chain.

Founded in 1975

ACI was founded in Omaha, Nebraska, US in 1975 to develop software for communications applications making use of the new NonStop computers from the then Tandem organisation. Many of the early projects involved building systems to handle ATMs, front ending the bank core banking systems, which led to the launch of the first product, BASE24, in 1982.

Over time that product was expanded to service transactions from other channels such as POS terminals and branch systems. And the product portfolio was expanded to cover more functions around card transactions such as clearing and settlement and fraud detection. As the product portfolio expanded, the hardware utilised for these products was also expanded to include suppliers such as IBM, HP, Stratus and SUN.

In the 1990s ACI's product range expanded to cover wholesale banking payments with solutions for wire transfers and ACH transactions leading to the acquisition of IntraNet in 1998, which expanded the product range with the Money Transfer System product.

International expansion

Early customers were all in the US. In 1981 an Australian bank became a customer starting an international growth path. By 1986, ACI had 131 customers in 14 countries. Supporting this international growth was the development of a series of offices and partners around the world.

Since 1995, ACI has been a public company traded on NASDAQ, initially under the name Transaction Systems Architects (TSA), and since July 2007 under the name ACI Worldwide, Inc. (ACIW). Prior to that ACI had periods under US West and Tandem ownership and as a private company.

During the 2000’s ACI continued to expand our product offerings to include online banking, card & merchant management solutions and retailer solutions. In 2008, ACI introduced the agile payments strategy to offer the market ‘s most unified payments solution.

Experience, expertise

Today's ACI builds on 40 years of experience of delivering systems to process payments for banks, processors and retailers around the world. ACI's reputation is based upon the success of products that have consistently provided stability, scalability and reliability. Customers have come to trust ACI because of these products and because of ACI’s expertise and dedication.

With the acquisition of S1 Corporation in February 2012, ACI further expanded its market position and global presence with enhanced scale, breadth and additional capabilities to deliver solutions across the global spectrum of financial institutions, processors and retailers.

And the March 2013 acquisition of Online Resources Corporation saw ACI further strengthen its leadership in online banking and payments and expand its offerings to credit unions and community banks. The acquisition of Official Payments in November 2013 saw ACI increase the reach of its bill pay offerings into federal, state and local governments, municipal utilities, higher education institutions and charitable giving organizations. 

In August 2014, ACI further strengthened its position in the payments risk management space with the acquisition of leading eCommerce and fraud prevention company Retail Decisions (ReD) .

ACI acquired leading global eCommerce payments solutions provider, PAY.ON in November 2015.   With PAY.ON, ACI bolstered end-to-end eCommerce payments capabilities, delivering the most complete omni-channel payments experience.

Today, ACI powers electronic payments for more than 5,000 organizations around the world.



Payment systems are what we do at ACI. They're what we have been doing for more than 40 years. Our employees have an unrivaled understanding of payment processes and how to improve them.

undefinedAt the core of your business

We believe that payments are a strategic source of income, differentiation and growth for banks, retailers and payment processors.

We implement systems that give you the ability to rapidly develop new payment services for your customers, quickly respond to changing circumstances and prevail over your competition.

Trusted globally

You'll find an ACI office or partner in every region of the world. We provide more than 5,600 banks, retailers, billers and processors with the broadest, most integrated suite of electronic payments software in the market, supported globally, 24/7. And we have a clear, continuous development roadmap delivering certainty for the future.

That is why 18 of the world's top 20 banks and more than 300 of the leading global retailers, rely on ACI payments software.

At ACI, we are achievers, collaborators, innovators. We come together from across the globe with a singular goal — to power global commerce with our innovative technology solutions. Join us as we drive payments at the speed of change.

How do we drive payments at the speed of change? Our employees tell the story best.


Who is ACI?

We are achievers, collaborators, innovators.

We enjoy the support and stability of a proven company along with the enthusiasm and entrepreneurial spirit of a startup.

We benefit from the diversity and expertise of our colleagues all over the world.

We work hard. And our dedication is rewarded with opportunities to learn, grow and build our careers by collaborating with the best and the brightest in the industry.

We are flexible in the way we work and dynamic as we respond to the monumental changes in the payments industry.

We come together with a singular goal — to power global commerce through our innovative technology. We are ACI. We drive payments at the speed of change.


ACI has a team of experts unmatched in the industry. And throughout our 40-year history, we’ve learned that collaboration across every level of the organization – from interns to tenured employees to our most senior managers – is key to our success and continued growth. 



ACI will lead the transformation of the global payments ecosystem to a real-time, any-to-any paradigm built on acclaimed intellectual property and delivered in the cloud by a team of highly dedicated and innovative payment professionals committed to our customers’ success.


We as ACI do business globally, respecting the language and culture where we operate. We are accountable, industrious, integrous, honest, and committed. These values are an intrinsic part of our employee culture and guiding principles.



ACI's Guiding Principles guide both strategic decisions and daily behavior to provide real value to our customers. 

As a company, we are laser-focused on delivering the right customer experience to each of our customers by living our Guiding Principles.

ACI Worldwide Reviews

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ACI Worldwide President, CEO, and Director Phil Heasley
Phil Heasley
331 Ratings
  • Featured Review

    Helpful (11)

    "Excellent call center"

    • Work/Life Balance
    • Culture & Values
    • Career Opportunities
    • Comp & Benefits
    • Senior Management
    Current Employee - Anonymous Employee in Auburn, AL
    Current Employee - Anonymous Employee in Auburn, AL
    Positive Outlook
    No opinion of CEO

    I have been working at ACI Worldwide full-time (More than a year)


    The job itself takes a few days worth of training and a few weeks of practice to become adept. The pay is good, and the hours are terrific. You can manage your own work place and the work/life balance in this one is absolutely superb.


    I cannot for the life of me find a single facet of this job that i don't like. The work, the culture, the pay, and the life balance are wonderful, and even the facilities, equipment, network, and building are all well maintained and pleasant to use.

    Advice to Management

    I cannot prescribe any advice to management at this time. In my experience, all disruptions and disputes, technical and personal, have been fully handled with utmost swiftness and professionalism.

See All 640 Reviews

ACI Worldwide Photos

ACI Worldwide photo of: ACI Coventry Office
ACI Worldwide photo of: Headquarters office
ACI Worldwide photo of: 11 ACIers from Germany and Austria laced up their running shoes to participate in B2Run Munich, a 6.1 km company run event held in Munich’s Olympic Stadium.
ACI Worldwide photo of: Romania Habitat for Humanity
ACI Worldwide photo of: Grand opening of ACI's new office in Timisoara, Romania.
ACI Worldwide photo of: ACI Naples celebrates its 20th anniversary on the island of Capri
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ACI Worldwide Interviews



Getting an Interview

Getting an Interview





    Analyst Interview

    Anonymous Employee in Omaha, NE
    Accepted Offer
    Positive Experience
    Average Interview


    I applied online. The process took 3 weeks. I interviewed at ACI Worldwide (Omaha, NE).


    Recruiters and hiring managers were easy to talk to. They effectively communicated the roles of the position and expectations. They were accessible with any further questions and timely with their responses.

    Interview Questions

    • Can you give an example of a time where you were put in a position that might have required you to compromise your integrity and how did you handle it.   Answer Question
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ACI Worldwide Awards & Accolades

  • International Award for UP eCommerce Payments Solution, Merchant Payments Ecosystem Awards, 2017
  • Best Online Payment Solution (Merchants), FStech/Retail Systems Payments, 2016
  • Ranked 18th on the international list of financial technology companies, IDC Financial Insights, 2016
  • Mike Rogers featured in inaugural "Trailblazers, Innovators and Disruptors" awards, SubPrime Auto Finance News, 2016
  • Ranked 16th in the Cloud Application Vendors list, Apps Runs the World, 2016
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