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

Sr Data Analyst

New York, NY · On-site

$94K - $118K/yr

You have a love of data, analysis, and creative problem solving * Are comfortable leading client ... Familiarity with programming languages is a plus (R, Python, dbt, SQL) Location: This role is ...

Sr Data Analyst

New York, NY · On-site

$94K - $118K/yr

You have a love of data, analysis, and creative problem solving * Are comfortable leading client ... Familiarity with programming languages is a plus (R, Python, dbt, SQL) Location: This role is ...

Python Developer

New York, NY · On-site

$55 - $75.75/hr

Candidate will ideally be someone who has experience with the use of Python in the data analysis/big data and ideally, econometrics spaces particularly has experience with Risk Analytics programming.

Senior Data Analyst - Commercial

New York, NY · On-site

$94K - $118K/yr

Drive analysis that provides meaningful insights on business strategies Data Management * Drive an ... Scripting experience in (Python, R, Spark, and SQL) * Strong desire and experience with data in ...

Senior Data Analyst - Commercial

New York, NY · On-site

$94K - $118K/yr

Drive analysis that provides meaningful insights on business strategies Data Management * Drive an ... Scripting experience in (Python, R, Spark, and SQL) * Strong desire and experience with data in ...

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 ...

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 ...

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

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

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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 Sep 10, 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:

Sr Data Analyst

New York, NY • On-site

$94K - $118K/yr

Full-time

Medical, Life, Retirement, PTO

Re-posted 9 hours ago


Job description

WHO WE ARE

Crossmedia is the global media independent. We're committed to doing media and business the right way, guided by the principles of TRUST, REASON and the Pursuit of HAPPINESS. Crossmedia US was founded in NY in 2000 and is one of the largest minority-owned full-service media planning & buying agencies in the nation. We are 500+ Crossmedians worldwide with big ambitions to continue to grow with soul. 

We focus on what media agencies should do: create innovative connections between brands and people regardless of channel or budget. And we do it in an honest way. We are and always have been a values-based organization. We earn our clients TRUST by ensuring media transparency in our business model and objectivity in decision-making. We apply REASON & logic to finding solutions to our clients' greatest business challenges. The Pursuit of HAPPINESS matters to us. Big time. We invest in each colleagues' professional & personal wellbeing and growth. It's why we have countless initiatives, clubs & cultural events dedicated to our people and why we have been the top ranked media agency named to Ad Age's Best Places to Work for the past seven years in a row.  

We have offices in the US, London and Germany.  Our client roster includes U.S. Bank, Invesco, Newell Brands, NASCAR, Planet Fitness, American Cancer Society, Ricola, Herschend Family Entertainment, Zalando, Edible Arrangements, Citizens Bank, and more.

YOUR ROLE

We are looking for a passionate, collaborative, and adaptable Sr. Analyst to join our team (in a hybrid role - working in office and from home). The Analytics group (Redbox) is passionate about data analysis, measurement, and storytelling. We are nimble and scrappy, employing multiple traditional and non-traditional methods and data sources to tackle consumer insights, audience exploration, brand health, competitive analysis, media attribution, media accountability, data dashboarding and advanced modeling. We believe it is important to guide clients' media effectiveness measurement to be holistic, capture incrementality, and focus on business outcomes (not vanity media metrics).

As a Sr. Analyst you will drive day to day analytics excellence for our clients. You will help promote data driven decision making across the agency and with our clients. You will collaborate with New Business, Strategy, and Account Tems. The agency looks to the Analytics group for direction, strategic thinking, and prowess in data science.   

  • You have a love of data, analysis, and creative problem solving
  • Are comfortable leading client conversations
  • Have solid organizational skills including attention to detail and multi-tasking agility
  • Adaptable, proactive, and able to work independently or in a team setting as needed
  • Don't mind rolling your sleeves up for data cleansing, data visualization, and analysis
  • Not afraid to speak up, ask questions, share your thoughts, and listen to others

RESPONSIBILITIES

  • Transform raw data into engaging visuals and compelling stories. You will bring data and research to life for clients and choose the best visuals and mediums to deliver your message.
  • Translate clients' business questions into an actionable measurement frameworks.
  • Generate quantitative and qualitative consumer and market research including:
    • Demographic, psychographic, and behavioral customer profiling
    • Media channel coverage, penetration, receptivity
    • Brand health deep dives
    • Competitive analysis
  • Help media team understand historical media performance, optimal media budget, and allocate budget across multiple media channels

REQUIREMENTS 

  • 2-3 years of experience in the marketing analytics space.
  • Experience creating data visualizations and dashboards to support media investment decision making. Tableau experience is required.
  • Use of common media research tools: YouGov, MRI-Simmons, GWI (Global Web Index), Vivvix/MediaRadar, Pathmatics or Nielsen Media Impact
  • Hands on experience with media measurement approaches including marketing mix modeling (MMM), multi-touch attribution (MTA), experimentation, or brand lift studies.
  • Knowledge of statistical techniques (multivariate regression, optimization, clustering, forecasting)
  • Familiarity with programming languages is a plus (R, Python, dbt, SQL)

Location: This role is hybrid and requires working onsite at our New York office, with flexibility to work from home too

Salary: 75,000-95,000. Commensurate with experience.  Compensation is determined on the skills, qualifications, certifications, tenure in the industry and experience of the applicant along with the requirements of the position.

CROSSMEDIA BENEFITS

Our principles of Trust, Reason, and the Pursuit of Happiness are brought to life through benefits that recognize and support the diversity and physical, emotional, and professional well-being of our people, including:

  • Flexibility to work in hybrid manner with in-office and work from home options (depending on role). 
  • Open/Flexible PTO/Annual leave with US & UK specific policies 
  • Sponsored healthcare options and agency-wide physical & mental health support 
  • 401k with company match (USA), and generous Pension (UK) 
  • Paid sabbatical at significant milestone anniversaries
  • Generous paid parental leave policy
  • Life milestone recognition & support
  • The Pursuit of Happiness Fund devoted to helping Crossmedians find their happy (be it travel, enrichment class, fitness membership or professional development)
  • Cell phone/tech reimbursement
  • Student Loan payment plan (US)
  • Tuition reimbursement
  • Learning & Development and training programs
  • And burgers – lots and lots of burgers

 COMMITMENT TO DIVERSITY AND INCLUSION

Diversity is in our DNA. As a minority-owned company, our commitment to an inclusive environment has long been embedded into agency practices and at every level. Almost one third of senior leadership identifies as a person of color and over half of our executive leadership are women. We have active mentoring & internship programs that create opportunities for underrepresented groups. Internal agency programming is anchored by XMEquity365, a permanent, year-round initiative fostering acknowledgement and support of marginalized communities within five pillars – Excellence, Voices, Education, Giving & Representation.

Crossmedia is committed to providing equal employment opportunities and creating a diverse and inclusive company culture and that does not discriminate against candidates and employees because of their disability, sex, race, gender identity, sexual orientation, religion, national origin, age, veteran status, or any other basis prohibited by applicable federal, state, or local law. 

All job requirements are subject to possible revision to reflect changes in the position requirements, business necessities and/or to reasonably accommodate individuals with disabilities. Essential and other job functions are subject to modification. This job description in no way states or implies that these are the only duties to which will be required in this position. Employees will be required to follow other job-related duties as requested by their supervisor/manager (within guidelines and compliance with laws in the US and UK ).

Continued employment remains on an "at-will" basis." Reasonable accommodations may be provided to enable individuals with disabilities to perform essential functions in compliance with the American with Disabilities Act of 1990 (US based) 

Physical Demands: 

The physical demands described here are representative of those that must be met by an employee to successfully perform the essential functions of this job: 

  • Prolonged periods of sitting at a desk and working on a computer. Must be able to remain in a stationary position 50% of the time.
  • Ability to stand, bend, and reach
  • Constantly operates a computer and other office productivity machinery, such as a calculator, copy machine, and computer printer.
  • The ability to communicate information and ideas so others will understand. Must be able to exchange accurate information in these situations.
  • The ability to observe details at close range (within a few feet of the observer).

In compliance with the current Americans with Disabilities Act and state and local laws, if you have a disability and would like to request an accommodation to apply for a position with Crossmedia, please email people.team@xmedia.com.  (US based candidates).