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Senior Python Data Analysis Jobs in Norwalk, CT (NOW HIRING)

Extend Enterprises, Inc.

Senior Data Analyst

New York, NY · On-site

$94K - $118K/yr

For more information visit paywithextend.com ABOUT THE ROLE The Senior Data Analyst is a high ... Python, R, or similar for statistical modeling and advanced analysis. * Strong understanding of ...

IBG, LLC

Senior Software Developer - Python

Chicago, IL · On-site

$125K - $168K/yr

The team consists of software engineers, data engineers, compliance specialists, and data ... Superb analytical and problem-solving skills. * Excellent collaboration and communication (Verbal ...

Extend Enterprises, Inc

Senior Data Analyst

New York, NY · Remote

$94K - $118K/yr

For more information visit paywithextend.com ABOUT THE ROLE The Senior Data Analyst is a high ... Python, R, or similar for statistical modeling and advanced analysis. * Strong understanding of ...

Guidepoint

Senior Data Analyst

New York, NY · Hybrid

$120K - $150K/yr

We are seeking a Senior Data Analyst who can own the full analytics lifecycle, including raw data ... Build and maintain scalable analytical workflows using SQL, Python, and Snowflake, incorporating AI ...

Octaura

Intern, Data Engineering

New York, NY

We bring trading capabilities, data and analytics together for the first time on a digitized ... As an intern on the data engineering team you will work directly with our senior data engineers ...

TransUnion

Senior Data Analyst

White Plains, NY · On-site

$90K - $150K/yr

Utilize tools to query, extract and transform large datasets using SQL, R, Python, Mongo DB ... TransUnion's Internal Job Title: Sr Consultant, Data Analysis Company: TransUnion LLC

Transunion

Senior Data Analyst

White Plains, NY

$90K - $150K/yr

Utilize tools to query, extract and transform large datasets using SQL, R, Python, Mongo DB ... TransUnion's Internal Job Title: Sr Consultant, Data Analysis Company: TransUnion LLC

CooperCompanies

Senior Data Analyst

Trumbull, CT · On-site

$84K - $106K/yr

Provide clear, reproducible reports and analysis to help answer business questions for IVF centers ... Serve as Python Subject Matter Expert for the Data team * Assist with Implementing quality controls ...

CooperCompanies

Senior Data Analyst

Trumbull, CT · On-site

$84K - $106K/yr

Provide clear, reproducible reports and analysis to help answer business questions for IVF centers ... Serve as Python Subject Matter Expert for the Data team * Assist with Implementing quality controls ...

Tatari

Data Science Analyst

New York, NY · On-site

$70K - $85K/yr

Magazine . Backed by an executive team of former founders and senior leaders from companies ... Provide ad-hoc data analysis, utilizing Python, PySpark, and SQL to identify and forecast trends ...

Cooper Companies

Senior Data Analyst

Trumbull, CT

$84K - $106K/yr

Advanced proficiency in SQL, Python, and Lua * High attention to detail, including experience with ... Provide clear, reproducible reports and analysis to help answer business questions for IVF centers ...

Procom Services

208642 / Sr. Data Analyst

New York, NY · On-site

$94K - $118K/yr

Perform data analysis activities (data profiling, creation of data dictionaries, data ... A senior data analyst is required to develop, design, construct, and maintain data structures ...

Tatari

Data Science Analyst

New York, NY · On-site

$70K - $85K/yr

Magazine. Backed by an executive team of former founders and senior leaders from companies ... Provide ad-hoc data analysis, utilizing Python, PySpark, and SQL to identify and forecast trends ...

Guidepoint

Senior Data Analyst

New York, NY · On-site

$120K - $150K/yr

We are seeking a Senior Data Analyst who can own the full analytics lifecycle, including raw data ... Build and maintain scalable analytical workflows using SQL, Python, and Snowflake, incorporating AI ...

Trans Union LLC

Senior Data Analyst

White Plains, NY · On-site

$90K - $150K/yr

Utilize tools to query, extract and transform large datasets using SQL, R, Python, Mongo DB ... TransUnion's Internal Job Title: Sr Consultant, Data Analysis Company: TransUnion LLC

Infojini Inc

Senior Digital Data Analyst

New York, NY · On-site

$94K - $118K/yr

Senior Digital Data Analyst Location: New York City, NY Longevity: Full Time Client: Direct Client ... Python a plus Degree in a quantitative field (i.e., business, economics, computer science ...

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All JobsPython Data Analysis JobsSenior Python Data Analysis JobsSenior Python Data Analysis Jobs in Norwalk, CT

Senior Python Data Analysis information

See Norwalk, CT salary details

$55.2K

$142.5K

$195.7K

How much do senior python data analysis jobs pay per year?

As of Aug 20, 2026, the average yearly pay for senior python data analysis in Norwalk, CT is $142,512.00, according to ZipRecruiter salary data. Most workers in this role earn between $122,000.00 and $164,100.00 per year, depending on experience, location, and employer.

What is a senior Python data analyst?

A Senior Python Data Analyst is an experienced professional who uses Python programming to collect, process, and analyze large sets of data. They are responsible for extracting meaningful insights from data to support business decisions, often using libraries like pandas, NumPy, and matplotlib. In addition to technical skills, they also apply statistical analysis and data visualization techniques, and frequently mentor junior analysts or collaborate with data scientists and engineers. Their role may also involve developing automated data pipelines and ensuring data quality across projects.

What are the key skills and qualifications needed to thrive as a senior Python data analyst?

To thrive as a Senior Python Data Analyst, you need an in-depth understanding of data analysis, statistical modeling, and advanced Python programming, typically supported by a degree in a quantitative field. Proficiency with data analysis libraries (like pandas, NumPy, and SciPy), visualization tools (such as Matplotlib and Seaborn), and experience with SQL databases are essential, and certifications like Microsoft Certified: Data Analyst Associate can be beneficial. Strong problem-solving abilities, effective communication, and the capacity to distill complex data insights for stakeholders are critical soft skills. These competencies enable you to extract actionable insights from large datasets, drive data-informed decision-making, and collaborate effectively across teams.

What are some common challenges senior Python data analysts face when working with large datasets, and how can they overcome them?

Senior Python Data Analysts often encounter difficulties such as slow processing speeds, memory limitations, and data quality issues when handling large datasets. To overcome these challenges, it's essential to leverage efficient libraries like pandas and Dask, utilize optimized data formats (such as Parquet), and implement batch processing or cloud-based solutions. Collaborating closely with data engineers and IT teams also helps ensure robust data pipelines and infrastructure. Regular code optimization and staying updated on best practices can further enhance performance when working at scale.

What is the difference between Senior Python Data Analysis vs Data Scientist?

AspectSenior Python Data AnalysisData Scientist
Required SkillsPython, SQL, data visualization, statistical analysisPython, R, machine learning, statistical modeling
Work EnvironmentData analysis teams, business unitsResearch, product development, analytics teams
Industry UsageBusiness intelligence, finance, marketingTech, healthcare, finance, research
CertificationsPython certifications, data analysis coursesData science certifications, machine learning courses

While both roles involve Python and data handling, Senior Python Data Analysts focus on interpreting data and creating reports for business decisions, whereas Data Scientists develop predictive models and advanced algorithms to extract deeper insights. The roles often overlap, but Data Scientists typically require broader skills in machine learning and statistical modeling.

What are popular job titles related to Senior Python Data Analysis jobs in Norwalk, CT?

For Senior Python Data Analysis jobs in Norwalk, CT, the most frequently searched job titles are:

What job categories do people searching Senior Python Data Analysis jobs in Norwalk, CT look for?

The top searched job categories for Senior Python Data Analysis jobs in Norwalk, CT are:

Senior Python Data Analysis jobs near you

Senior Data Analyst

Extend Enterprises, Inc.

New York, NY • On-site

$94K - $118K/yr

Full-time

Medical, Retirement, PTO

Re-posted 20 days ago

Job description

ABOUT EXTEND
Extend offers businesses powerful spend controls and expense workflows that drive efficiency, improve security and visibility, and better manage company spending. Our primary product is a spend and expense management platform that allows SMBs to create on-demand virtual cards, automate reconciliation, and manage employee expense reports. We have built the first virtual card platform of its kind, directly integrated with processors, networks, and the technology that supports banking across the industry. We offer several virtual card products including an app-as-a-service that banks can offer business customers with their existing credit cards, a suite of virtual card APIs for those looking to build custom payment solutions, and we also offer secure connectivity to key banking and payment services that enable 3rd-parties to integrate and embed payments into their software.
VC-funded Extend is headquartered in Manhattan and has recently raised $20m in capital from top fintech investors. With 60 passionate team members and exciting momentum - after launching a new subscription offering over Summer '25, there's never been a better time to join our team!
For more information visit paywithextend.com
ABOUT THE ROLE
The Senior Data Analyst is a high-impact individual contributor. The ideal candidate combines strong business acumen, analytical rigor, and exceptional communication skills to transform complex data into actionable business insights. This role owns core business analytics while applying advanced methods to evaluate trends, validate hypotheses, and guide strategic decisions.
As a strategic analytics partner, this individual will help leaders identify opportunities, evaluate business performance, measure the impact of key initiatives, and guide decisions through thoughtful analysis. Beyond reporting what happened, they will uncover why it happened, assess confidence in the findings, and recommend practical actions that drive business outcomes.
This role is ideal for someone who enjoys solving business problems, influencing decision-making, and serving as a trusted advisor across Product, Business Development, Operations, Finance, and Executive Leadership.
AT EXTEND, YOU'LL:
Own Core Business Analytics
  • Define, maintain, and continuously improve dashboards and reporting for revenue, SaaS performance, customer growth, and product adoption.
  • Establish clear metric definitions and governance to ensure consistency and integrity across teams.
  • Serve as the trusted source of truth for core business KPIs.
Statistical Analysis & Experimental Rigor
  • Translate complex data into clear narratives and recommendations for leadership.
  • Apply statistical methods to evaluate trends, cohort performance, and business experiments.
  • Assess sample size, variance, and statistical significance when interpreting business outcomes.
  • Distinguish signal from noise and clearly communicate confidence levels in findings.
  • Design and evaluate A/B tests and other controlled experiments in partnership with Product and BD.
  • Provide structured guidance on when data is sufficient to inform decisions, and when it is not.
Advanced Analytics & Forecasting
  • Conduct advanced analyses to identify drivers of customer retention, churn, product adoption, revenue growth, and business performance.
  • Support forecasting and scenario planning initiatives.
  • Identify leading indicators, emerging trends, and potential business risks.
  • Experience with predictive modeling is a plus but not required.
AI-Enabled Analytics & Automation
  • Leverage AI tools to accelerate analysis, enhance modeling workflows, and surface deeper insights.
  • Experiment with AI-assisted anomaly detection, forecasting support, and exploratory data analysis.
  • Identify opportunities to automate recurring analytical tasks using scripting or AI-enabled tools.
  • Promote responsible and secure use of AI in analytics.
Data Quality & Infrastructure Collaboration
  • Monitor data integrity and investigate anomalies.
  • Partner with Engineering to improve data pipelines and resolve discrepancies.
  • Contribute to building scalable, durable analytics infrastructure.

THE CANDIDATE
Required Experience & Skills
  • 5+ years of experience in analytics, data science, or statistics (ideally in SaaS/ tech)
  • Advanced SQL and strong experience working with large datasets; strong data validation and analytical rigor
  • Excellent business acumen: consistently translates ambiguous questions into measurable definitions, prioritizes work by impact, and ties analysis to decisions and outcomes.
  • Proficiency in statistical analysis and experimentation (hypothesis testing, confidence intervals, regression analysis, variance analysis, design and analyzing of A/B testing), clear distinction between correlation vs causation; experience with Python, R, or similar for statistical modeling and advanced analysis.
  • Strong understanding of SaaS metrics (ARR, retention, churn, LTV, CAC, product adoption) and how to connect them to product and growth levers.
  • Executive-ready communication and stakeholder partnership: comfortable explaining uncertainty/tradeoffs and influencing senior leadership; proactive, high-ownership operating style..
  • High ownership / proactive execution: independently identifies opportunities, drives projects end-to-end, and communicates progress without needing heavy direction.
  • Understanding of data privacy and responsible AI practices.

WHAT WE OFFER
  • Competitive compensation package
  • Equity for all-our success is your success
  • Unlimited vacation-and we want you to use it
  • 401K matching
  • Flexible work options
  • Comprehensive health coverage for you and your family
  • Maternity and paternity leave benefits
  • Reimbursement for gym memberships
  • A referral bonus-bring your friends!
  • Work with and learn from functional experts across disciplines

The salary range for this role is $115,000 - $150,000. Your final base salary will be determined based on various factors which may include, but are not limited to location, work experience, skills, knowledge, education and/or certifications. This role is eligible for commission subject to Extend's Sales Incentive Plan.
To all recruitment agencies, Extend does not accept agency resumes. Please do not forward resumes to our jobs alias, Extend employees or any other company location. Extend is not responsible for any fees related to unsolicited resumes
Extend is an equal opportunity employer and makes employment decisions without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, protected veteran status, disability status, citizenship or immigration status, or any other status protected by law.

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