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Senior Data Analyst Jobs in O Fallon, IL (NOW HIRING)

Golden Technology

Senior Data Analyst

Saint Louis, MO · On-site

$83.60K - $105.50K/yr

Senior Data Analyst Location: St. Louis, MO What You'll Do: Our client is looking for a Senior Data Analyst to join their Team! Responsibilities in this role will include: gathering disparate data ...

Core & Main

Senior Data Analyst

Saint Louis, MO · On-site

$83.60K - $105.50K/yr

Job Summary Gather disparate data; analyze and normalize to ensure data integrity for analysis. Provide consistent, relevant, and accurate data and analysis as well as guidance/knowledge of the data ...

Core and Main LP

Senior Data Analyst

Saint Louis, MO · On-site

$83.60K - $105.50K/yr

Job Summary Gather disparate data; analyze and normalize to ensure data integrity for analysis. Provide consistent, relevant, and accurate data and analysis as well as guidance/knowledge of the data ...

Equifax

Senior Data Analyst, Finance

Saint Louis, MO · Hybrid

$83.60K - $105.50K/yr

Senior Data Analyst, Finance Equifax is where you can power your possible. If you want to achieve your true potential, chart new paths, develop new skills, collaborate with bright minds, and make a ...

New

Accenture

Data Protection Sr. Analyst

Saint Louis, MO · Hybrid

$84.80K - $100.70K/yr

As a Data Protection Senior Analyst, you'll support the delivery of data protection, data governance, and privacy solutions for Avanade clients. You'll work under the guidance of senior team members ...

Stellar IT Group

Data Analyst

Saint Louis, MO · On-site

Data Analyst Job Location: Remote Interview: Virtual Job Duration: 6 Months Contract Overview: We are seeking a Data Analyst with strong SQL and Python expertise to support data validation, data ...

Stellar IT Group

Data Analyst

Saint Louis, MO · Remote

Data Analyst Job Location: Remote Interview: Virtual Job Duration: 6 Months Contract Overview: We are seeking a Data Analyst with strong SQL and Python expertise to support data validation, data ...

The Timberline Group

Data Analyst

Saint Louis, MO · On-site

We seek the talent of a dynamic Data Analyst who seeks to bring their A game to a collaborative team of talented professionals. You are not afraid to make impact where your opinion matters in a ...

Golden Technology

Data Analyst

Saint Louis, MO · On-site

Data Analyst Location: St. Louis, MO What You'll Do: Our client is looking for Data Analyst to join their Team! Responsibilities in this role will include: gathering disparate data; analyzing and ...

CDIT

Data Analyst

Scott Air Force Base, IL · On-site

Job Title Examines data from various sources to provide insights into organization, mission ... Junior - 0-3 years, Intermediate - 3-8 years, Senior - 8-11 years, Subject Matter Expert - 12 ...

Resource Innovations

Data Analyst

Saint Louis, MO · On-site +1

$54K - $80K/yr

Resource Innovations is seeking a Data Analyst to become a vital part of our team in St. Louis, MO or remotely. We're looking for a talented and driven individual with a robust background in data ...

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Senior Data Analyst information

See O Fallon, IL salary details

$51.3K

$92.6K

$126.4K

How much do senior data analyst jobs pay per year?

As of May 28, 2026, the average yearly pay for senior data analyst in O'Fallon, IL is $92,563.00, according to ZipRecruiter salary data. Most workers in this role earn between $80,200.00 and $101,200.00 per year, depending on experience, location, and employer.

What Does a Senior Data Analyst Do?

A senior data analyst develops and leads a team of data analysts in business or research projects. Job duties include consulting with other departments and management, conducting research using analytical tools, developing business solutions, and writing reports. Qualifications for a career as a senior data analyst include a bachelor’s degree in statistics, computer science, or a related field; job experience in data analytics; familiarity with data modeling languages such as R and Python; and leadership skills.

What are the key skills and qualifications needed to thrive as a Senior Data Analyst, and why are they important?

To thrive as a Senior Data Analyst, you need advanced analytical skills, a strong foundation in statistics, and experience with data modeling, typically supported by a relevant degree in mathematics, statistics, or computer science. Expertise in data visualization tools (like Tableau or Power BI), SQL, and programming languages such as Python or R is often required, along with familiarity with big data platforms. Outstanding problem-solving, communication, and stakeholder management skills set top performers apart. These competencies ensure accurate data-driven insights and effective collaboration with business teams to drive strategic decision-making.

What are some common challenges Senior Data Analysts face when collaborating with cross-functional teams?

Senior Data Analysts often work closely with departments such as product, marketing, and engineering to align data insights with business objectives. A common challenge is translating complex data findings into actionable recommendations for non-technical stakeholders. Additionally, balancing multiple priorities and managing expectations across teams can require strong communication and project management skills. Proactively building relationships and maintaining open lines of communication can help overcome these challenges and ensure successful collaboration.

What are Senior Data Analysts?

Senior Data Analysts are experienced professionals who collect, process, and analyze complex data sets to help organizations make data-driven decisions. They often lead analytics projects, design data models, and communicate findings to stakeholders using reports and visualizations. In addition to technical expertise with tools like SQL, Python, or R, they frequently mentor junior analysts and work closely with business leaders to identify opportunities for improvement. Their insights can drive strategy, optimize operations, and support organizational goals.

What is the difference between Senior Data Analyst vs Data Scientist?

AspectSenior Data AnalystData Scientist
Required CredentialsBachelor's degree in data-related field; experience in analytics toolsBachelor's or master's in data science, statistics, or related fields; often more advanced certifications
Work EnvironmentBusiness intelligence teams, analytics departmentsResearch teams, data science departments, R&D
Employer & Industry UsageFinance, healthcare, retail, tech companiesTech firms, startups, research institutions
Common Search & ComparisonOften compared for analytical roles with data scienceMore advanced, predictive modeling focus

The main difference between a Senior Data Analyst and a Data Scientist lies in their focus and skill set. Senior Data Analysts primarily handle data analysis, reporting, and visualization, while Data Scientists work on predictive modeling, machine learning, and advanced algorithms. Both roles require strong analytical skills, but Data Scientists typically have more technical expertise in programming and statistical modeling.

More about Senior Data Analyst jobs
What are the most commonly searched types of Data Analyst jobs in O'Fallon, IL? The most popular types of Data Analyst jobs in O'Fallon, IL are:
What cities near O'Fallon, IL are hiring for Senior Data Analyst jobs? Cities near O'Fallon, IL with the most Senior Data Analyst job openings:
Senior Data Analyst jobs near you
Infographic showing various Senior Data Analyst job openings in O'Fallon, IL as of May 2026, with employment types broken down into 1% As Needed, 94% Full Time, 4% Part Time, and 1% Contract. Highlights an 38% Physical, 3% Hybrid, and 59% Remote job distribution, with an average salary of $92,563 per year, or $44.5 per hour.
Senior Data Analyst

Senior Data Analyst

Golden Technology

Saint Louis, MO • On-site

$83.60K - $105.50K/yr

Other

This job post has expired today. Applications are no longer accepted.

Job description

Your Next Career Move Starts Here!
The Role: Senior Data Analyst
Location: St. Louis, MO
What You'll Do:
Our client is looking for a Senior Data Analyst to join their Team! Responsibilities in this role will include: gathering disparate data; analyzing and normalizing to ensure data integrity for analysis; provide consistent, relevant and accurate data and analysis as well as guidance/knowledge of the data and definitions that are available; constantly strive for process improvement looking to add value across the organization through insightful analytics.
Required Qualifications:
  • Advanced expertise in Power BI (data modeling, DAX, Power Query, report design)
  • Strong understanding of Power BI security and governance in enterprise environments
  • Experience in aggregating large volumes of financial data for analysis
  • Experience consolidating data across multiple ERPs
  • Certification on database/analysis tools
  • Advanced experience with Microsoft Office Suite (Power Query, Power Automate, Excel, Power Point)
  • Experience with Alteryx, SQL (SQL Server Management Studio), OneStream a plus.
Why Golden Technology?
Founded in 1997, Golden Technology has grown from a two-person vision into a trusted partner for Fortune 500 clients nationwide. Along the way, we've built a culture centered on family, professional growth, and giving back to our communities through our Golden Community initiatives.
Here's what sets us apart:
  • Family-first culture that values balance and support.
  • Career development through mentorship, opportunities, and investment in our people.
  • Community impact by dedicating time, talent, and resources to the places we live and work.
What's In It for You
  • Exciting opportunities with innovative companies.
  • Guidance from a recruiting team with decades of experience.
  • A professional, supportive culture built on trust and collaboration.

Ready to take the next step?
Apply today and let's build your brighter future together.

Apply