OneStream Application Specialist

Gallagher
Rolling Meadows, IL


Welcome to Gallagher – a global leader in insurance, risk management, and consulting services. With a growing team of more than 52,000 professionals worldwide, we empower businesses, communities, and individuals to thrive. At Gallagher, you can build a career whether it’s with our brokerage division, our benefits and HR consulting division, or our corporate team. Experience The Gallagher Way, a culture fueled by shared values and a collective passion for excellence. Join one of our dynamic teams, where you'll play a pivotal role in shaping Gallagher's future and unlocking unparalleled opportunities for both clients and yourself.

We believe that every candidate brings something special to the table, including you! So, even if you feel that you’re close but not an exact match, we encourage you to apply.

Overview

The Application Specialist is responsible for supporting the application support of the OneStream application owned by the GTS Corporate Applications team. This position serves as a Subject Matter Expert (SME) resource of OneStream, supporting processes, and implementing improvements. The Application Specialist ensures appropriate controls are in place and integrates data for decision makers and business owners to support IT, Compliance, project, and vendor management activities. The Application Specialist also provides administrative and project support to the team.

How you'll make an impact

  • Serve as a OneStream subject matter expert associated with functionality, content, processes, and procedures.
  • Analyze data, write up source-to-target mapping, read data models and data mining and data profiling.
  • Assist with the design and implementation of operational and system enhancements to ensure production capabilities are both effective and efficient.
  • Develop and maintain relationships with key stakeholders and technology staff, including off-shore personnel, to ensure that communication is open and ongoing.
  • Serve as liaison between technical and functional stakeholders and project management teams to keep initiatives moving forward smoothly and in accordance with project plans.
  • Define project scope, project strategy, deliverable priorities, and recommend alternative solutions.
  • Define detailed requirements, analyze business needs, and validate solutions with the internal partners.
  • Coordinate project activities, prepare agendas, document meeting outcomes, and collaborate with team members.
  • Establish, administer, and maintain project and knowledge management processes and tools.
  • Ensure OneStream application is compliant with Gallagher’s IT Policy. Build plans to enforce compliance with IT policy and standard user management processes.
  • Evaluate SOC reports to ensure vendor and application compliance and surface risks.
  • Maintain the application SharePoint microsite including regular updates of critical information.

About You

Required:

  • Minimum of 5 years of experience working with Financial & Business applications, specifically OneStream
  • Design and Development Experience with OneStream Business Rules / Stores Procedures / Interfaces
  • Experience with OneStream application / reports development using VB.net / .NET / C#
  • Experience with design and maintain custom modules like Budgeting / Forecasting in OneStream application architecture using VB.net
  • Experience working with third party vendors to implement SaaS solutions
  • Working "hands-on" knowledge of Software Development Life Cycle and project management methodologies
  • Financial acumen (working knowledge) and awareness of key accounting, financial management and analysis processes, including but not limited to AP, AR, revenue recognition, budgeting, bank management, time and billing estimation.
  • Awareness of security and control standards, frameworks, and best practices (e.g. ISO 27001, NIST)
  • Strong PC skills, including experience using MS Office Products, especially Excel and Project
  • Excellent organization skills, and verbal and written communication skills

Desired:

  • Bachelor’s Degree in Business, Information Technology, Engineering or related field
  • Minimum 5 years of technology project support experience
  • Understanding of legal, IT compliance, and security with a fair understanding of security risk assessment
  • Understanding of Single Sign-On and Identity Management solutions
  • Advanced level proficiency with Microsoft Office tools including Word, Excel, PowerPoint, Visio
  • Intermediate experience with Microsoft Dynamcis 365 F&O, Power BI, Azure DevOps, and Planview
  • SharePoint experience, including creating and maintaining Team Sites, Project Sites, and Microsoft Teams is a plus
  • Formal project management training or certification
  • Strong SQL query skills
  • Experience working in large enterprises with domestic and international locations
  • Experience working with off-shore or remote development/support teams

Work Traits:

  • Demonstrated ability to prioritize and manage multiple tasks simultaneously
  • Ability to work at a fast pace and cope with conflicting deadlines
  • Proven ability to deliver excellent customer service
  • Good analytical and problem solving skills
  • Strong attention to detail
  • Dependable, hardworking, professional, self-starter, able to work well with cross-functional teams
  • Ability to perform both project management and business/systems analysis

Compensation and benefits

On top of a competitive salary, great teams and exciting career opportunities, we also offer a wide range of benefits.

Below are the minimum core benefits you’ll get, depending on your job level these benefits may improve:

  • Medical/dental/vision plans, which start from day one!
  • Life and accident insurance
  • 401(K) and Roth options
  • Tax-advantaged accounts (HSA, FSA)
  • Educational expense reimbursement
  • Paid parental leave

Other benefits include:

  • Digital mental health services (Talkspace)
  • Flexible work hours (availability varies by office and job function)
  • Training programs
  • Gallagher Thrive program – elevating your health through challenges, workshops and digital fitness programs for your overall wellbeing
  • Charitable matching gift program
  • And more...

We value inclusion and diversity

Click Here to review our U.S. Eligibility Requirements and Pay Disclosure Statement

Inclusion and diversity (I&D) is a core part of our business, and it’s embedded into the fabric of our organization. For more than 95 years, Gallagher has led with a commitment to sustainability and to support the communities where we live and work.

Gallagher embraces our employees’ diverse identities, experiences and talents, allowing us to better serve our clients and communities. We see inclusion as a conscious commitment and diversity as a vital strength. By embracing diversity in all its forms, we live out The Gallagher Way to its fullest.

Gallagher believes that all persons are entitled to equal employment opportunity and prohibits any form of discrimination by its managers, employees, vendors or customers based on race, color, religion, creed, gender (including pregnancy status), sexual orientation, gender identity (which includes transgender and other gender non-conforming individuals), gender expression, hair expression, marital status, parental status, age, national origin, ancestry, disability, medical condition, genetic information, veteran or military status, citizenship status, or any other characteristic protected (herein referred to as “protected characteristics”) by applicable federal, state, or local laws.

Equal employment opportunity will be extended in all aspects of the employer-employee relationship, including, but not limited to, recruitment, hiring, training, promotion, transfer, demotion, compensation, benefits, layoff, and termination. In addition, Gallagher will make reasonable accommodations to known physical or mental limitations of an otherwise qualified person with a disability, unless the accommodation would impose an undue hardship on the operation of our business.

Posted 2025-07-30

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