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Data Scientist

ACI Worldwide Job Opportunities Open
Timisoara Full-time Mid-level Data Science

At a glance

Mid-level Data Science role at ACI Worldwide Job Opportunities. Timisoara · full-time.

Pay not stated Data Scientist salary

RoleData Science
SeniorityMid-level
LocationTimisoara
EmploymentFull-time
PostedAug 14, 2026
Role brief

dataroles summary, based on the employer's posting.

What you'll do

  • Build predictive customer models using statistical and machine-learning methods
  • Take models from data definition and preparation through feature selection, validation and production support
  • Clean, explore, query and visualize large datasets drawn from different sources
  • Work with product and service teams to define analysis questions, then explain findings to business managers
  • Collaborate with scientists and engineers to develop and deploy models for financial applications

What you bring

  • A bachelor's degree is required; a doctorate is preferred in a relevant technical or scientific field
  • At least two years of industry or related experience
  • Experience developing computational software, with basic Python, pySPARK, R or SQL skills
  • Knowledge of AI-based tools used to speed up coding and carry projects forward

Who this fits

This mid-level role suits someone who can take ownership of moderately complex modeling projects involving very large datasets and work closely with scientists, engineers, product and service teams. The position is hybrid and based in Timisoara, Romania. You must already be authorized to work full time in Romania; employment visa or work-permit sponsorship is not available.

From the employer

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 Data Scientist you will join a diverse, passionate team, dedicated to powering the world’s payments ecosystem!

The purpose of the Data Scientist role is:

Designs, develops and programs methods, processes, and systems to consolidate and analyze unstructured, diverse “big data” sources to generate actionable insights and solutions for client services and product enhancement. Interacts with product and service teams to identify questions and issues for data analysis and experiments. Develops and codes software programs, algorithms and automated processes to cleanse, integrate and evaluate large datasets from multiple disparate sources. Identifies meaningful insights from large data and metadata sources; interprets and communicates insights and findings from analysis and experiments to product, service, and business managers.

A typical day at ACI for a Data Scientist is:

  • Develops predictive models for customers utilizing a variety of statistical and machine learning algorithms.
  • Holds responsibility for projects of a moderate degree of complexity and very large volume datasets.
  • Executes all stages of model development and delivery including data definition, sampling, preprocessing, feature selection, model generation, and validation and support or production model release.
  • Validates and prepares data for model development, performs exploratory data analysis and data cleaning on large datasets and queries and visualizes data with a variety of tools.
  • Works collaboratively with a team of scientists and engineers responsible for the development and deployment of the state-of-the-art models for a variety of financial applications.
  • This includes the design, development and deployment of models that leverage large datasets containing structured and unstructured data.
  • 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 needed to succeed in this role:

  • Bachelor’s degree required. PhD preferred in Bioinformatics, Electrical Engineering, Applied Statistical Mathematics, Physics, Computational Chemistry or related field
  • 2+ years industry or related field experience
  • Experience in development of computational software (basic level with Python, pySPARK, R, SQL)
  • Knowledge of AI base tools to accelerate coding and implement projects

Core Capabilities:

We seek colleagues who embody our core capabilities — these shape our culture and enable us to make a meaningful impact together:

  • Ensure Accountability: holding self and others accountable to meet commitments.
  • Drives Results: consistently achieving results, even under tough circumstances.
  • Customer Focus: building strong customer relationships and delivering customer-centric solutions.
  • Cultivate Innovation: creating new and better ways for the organization to be successful.
  • Collaborates: building partnerships and working collaboratively with others.
  • Courage: stepping up to address difficult issues, saying what needs to be said.

Applicants must be currently authorized to work in the Romania on a full-time basis. This position does not offer sponsorship for employment visa status or work permit now or in the future.

In return for your expertise, we offer opportunities for growth, career development, and a competitive compensation and benefits package—all within an innovative and collaborative work environment.

Are you ready to help us transform the payments ecosystem? To learn more about ACI Worldwide, visit our web site at www.aciworldwide.com

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.

Important Notice About Recruitment Scams
Job seekers should be aware of ongoing recruitment scams where individuals or organizations impersonate legitimate companies to offer fake job opportunities. These scams often involve requests for personal information, payments, or interviews through unofficial channels. Please be cautious and verify any communications claiming to be from our company (www.aciworldwide.com / @aciworldwide.com). The ACI Worldwide recruitment team will always follow official channels and will never request payment.

#Hybrid

Opportunity

Data Science work from LinkedIn, X, Reddit and Upwork, in one list.

Each morning you get everything that fits, strongest first.

Data Science

Find me work

By the team behind dataroles.

Find me work
Opportunity

Data Science work from LinkedIn, X, Reddit and Upwork, in one list.

Each morning you get everything that fits, strongest first.

Find me work

By the team behind dataroles.