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Senior Python Sql Developer Jobs in Illinois (NOW HIRING)

Senior Data Engineer

Chicago, IL

$109K - $148K/yr

Apache Kafka, Rabbit MQ, NoSQL datastores., Java, Python, SQL, Amazon Web Services Titles: Data Engineer, Senior Data Engineer, Database Engineer, Data Architect, Senior Data Architect

Python Developer

Chicago, IL

$51.75 - $71.25/hr

Python Developer Location : Chicago, IL Duration : 6 months + Python Developer with 5+ years ... C #, C++, SQL, UNIX, Messaging (MQ, RV) and Perl. You will be working with a team of developers and ...

Engineer Senior Engineer Senior Location: Ideal candidates will be able to report to our Pulse ... SSIS/C#/Python; * SQL programming for writing complex queries, stored procedures, and triggers ...

New

... using Python, SQL and/or R • Build and enhance media mix models to connect the impact of ... research, engineering, or related field • 6+ years of industry experience in data science ...

Python Developer

Chicago, IL

$51.75 - $71.25/hr

Python Developer with 5+ years' experience Be able to demonstrate proficiency with excel and python ... C #, C++, SQL, UNIX, Messaging (MQ, RV) and Perl. You will be working with a team of developers and ...

Client

Chicago, IL · On-site

$56.75 - $70.25/hr

... Python, SQL, and data transformation logic. Experience building CI/CD pipelines for data engineering workloads Extensive hands-on experience implementing Lake house architecture using Data bricks ...

Python, AWS, Vue Developer

Chicago, IL · On-site

$51.75 - $71.25/hr

Data Engineer (Contract) Location: Remote Duration: 6-Month Contract * *US CITIZENS ONLYThis ... Minimum 4 years working specifically with: Front End (Vue & JavaScript), Backend (Python, MS SQL ...

Engineer Senior

Chicago, IL · On-site

$153K - $154K/yr

Engineer Senior Location: Ideal candidates will be able to report to our Pulse Point location at ... SSIS/C#/Python; * SQL programming for writing complex queries, stored procedures, and triggers ...

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Senior Python Sql Developer information

What are some common challenges faced by Senior Python SQL Developers when managing large datasets, and how can they be addressed?

Senior Python SQL Developers often encounter challenges such as optimizing query performance, handling data integrity, and ensuring scalable data processing when working with large datasets. To address these issues, they frequently use advanced indexing, partitioning strategies, and efficient query design. Additionally, collaborating closely with data engineers and DBAs helps identify bottlenecks and implement best practices for database performance and maintainability. Regular code reviews and adopting automated testing also play a key role in maintaining robust data pipelines.

What are Senior Python SQL Developers?

Senior Python SQL Developers are experienced professionals who design, develop, and maintain software applications using Python and SQL. They work on tasks such as building backend systems, managing databases, optimizing queries, and ensuring data integrity. These developers often collaborate with other engineers, data analysts, and stakeholders to deliver robust solutions. Their seniority implies advanced technical skills, leadership abilities, and a track record of successful project delivery.

What is the difference between Senior Python Sql Developer vs Data Analyst?

AspectSenior Python Sql DeveloperData Analyst
Required SkillsPython, SQL, database management, scriptingSQL, data visualization, statistical analysis
Work EnvironmentSoftware development teams, IT departmentsBusiness units, research teams
CertificationsSQL certifications, Python certificationsData analysis certifications, Excel skills
Industry UsageTech, finance, healthcareMarketing, finance, consulting

The main difference between a Senior Python Sql Developer and a Data Analyst lies in their focus areas. The developer primarily builds and maintains data systems using Python and SQL, while the analyst interprets data to provide insights. Both roles require strong SQL skills and may share certifications, but their daily tasks and industry applications differ significantly.

What are the key skills and qualifications needed to thrive as a Senior Python SQL Developer, and why are they important?

To thrive as a Senior Python SQL Developer, you need advanced proficiency in Python programming, SQL query optimization, database design, and a relevant degree in computer science or a related field. Experience with frameworks like Django or Flask, familiarity with version control systems such as Git, and knowledge of relational databases like PostgreSQL or MySQL are typically required. Strong problem-solving abilities, effective communication, and the ability to collaborate across teams distinguish top performers in this role. These skills ensure robust, scalable solutions and seamless data integration essential for business intelligence and application development.
What are the most commonly searched types of Python Sql Developer jobs in Illinois? The most popular types of Python Sql Developer jobs in Illinois are:
What are popular job titles related to Senior Python Sql Developer jobs in Illinois? For Senior Python Sql Developer jobs in Illinois, the most frequently searched job titles are:
What job categories do people searching Senior Python Sql Developer jobs in Illinois look for? The top searched job categories for Senior Python Sql Developer jobs in Illinois are:
What cities in Illinois are hiring for Senior Python Sql Developer jobs? Cities in Illinois with the most Senior Python Sql Developer job openings:
Lead Data Engineer (Python, AWS, SQL, GenAI) (Enterprise Platforms Technology)

Lead Data Engineer (Python, AWS, SQL, GenAI) (Enterprise Platforms Technology)

Capital One

Chicago, IL

$118K - $141K/yr

Full-time

Posted 14 days ago


Capital One rating

7.8

Company rating: 7.8 out of 10

Based on 143 frontline employees who took The Breakroom Quiz

76th of 149 rated banks


Job description

Lead Data Engineer (Python, AWS, SQL, GenAI) (Enterprise Platforms Technology)

Do you love building and pioneering in the technology space? Do you enjoy solving complex business problems in a fast-paced, collaborative, inclusive, and iterative delivery environment? At Capital One, you'll be part of a big group of makers, breakers, doers and disruptors, who solve real problems and meet real customer needs. We are seeking Sr. Data Engineers who are passionate about data, data modeling, data quality, governance and permissible use and building data pipelines with emerging technologies. As a Capital One Lead Data Engineer, you'll have the opportunity to be on the forefront of driving a major transformation within Capital One.

Team:

The Marketing and Messaging team is responsible for delivering hyper-personalized messages and experiences that will delight the customer, attract prospects and drive increasing business value. The team builds scalable platforms that deliver omnichannel messages in owned and paid Adtech channels.

What You'll Do:

  • Collaborate with and across Agile teams to design, develop, test, implement, and support technical solutions using data movement tools and technologies

  • Work, as a lead developer, with a team of developers with deep experience in data movement, distributed computing, and full stack systems

  • Utilize programming languages like Python, SQL and Open Source RDBMS and NoSQL databases and Cloud based data warehousing services such as Snowflake, Databricks

  • Optimize information system for end-user and downstream application consumers by using sound data design practices

  • Share your passion for staying on top of tech trends, experimenting with and learning new technologies, participating in internal & external technology communities, and mentoring other members of the engineering community

  • Collaborate with digital product managers, and deliver robust cloud-based solutions that drive powerful experiences to help millions of Americans achieve financial empowerment

  • Perform unit tests and conduct reviews with other team members to make sure your code is rigorously designed, elegantly coded, and effectively tuned for performance

Basic Qualifications:

  • Bachelor's Degree

  • At least 4 years of experience in application development (Internship experience does not apply)

  • At least 2 years of experience in big data technologies

  • At least 1 year experience with cloud computing (AWS, Microsoft Azure, Google Cloud)

Preferred Qualifications:

  • 7+ years of experience in application development including Python, SQL, Spark, ETL tools, AWS Glue

  • 4+ years of experience with a public cloud (AWS, Microsoft Azure, Google Cloud)

  • 4+ years of experience with Distributed data/computing tools (MapReduce, Hadoop, Hive, EMR, Kafka, Spark, or MySQL)

  • 4+ years of experience working on real-time data and streaming applications

  • 4+ years of experience with NoSQL implementation (Mongo, Cassandra)

  • 4+ years of data warehousing experience (Redshift or Snowflake)

  • 4+ years of experience with UNIX/Linux including basic commands and shell scripting

  • 4+ years of experience with data modeling for data warehousing

  • 2+ years of experience with Agile engineering practices

  • 1+ years of experience leveraging AI-assisted coding tools (Claude Code, GitHub Copilot) to accelerate the software delivery

At this time, Capital One will not sponsor a new applicant for employment authorization, or offer any immigration related support for this position (i.e. H1B, F-1 OPT, F-1 STEM OPT, F-1 CPT, J-1, TN, E-2, E-3, L-1 and O-1, or any EADs or other forms of work authorization that require immigration support from an employer).

The minimum and maximum full-time annual salaries for this role are listed below, by location. Please note that this salary information is solely for candidates hired to perform work within one of these locations, and refers to the amount Capital One is willing to pay at the time of this posting. Salaries for part-time roles will be prorated based upon the agreed upon number of hours to be regularly worked.

Chicago, IL: $179,400 - $204,700 for Lead Data Engineer


McLean, VA: $197,300 - $225,100 for Lead Data Engineer










Candidates hired to work in other locations will be subject to the pay range associated with that location, and the actual annualized salary amount offered to any candidate at the time of hire will be reflected solely in the candidate's offer letter.

This role is also eligible to earn performance based incentive compensation, which may include cash bonus(es) and/or long term incentives (LTI). Incentives could be discretionary or non discretionary depending on the plan.

Capital One offers a comprehensive, competitive, and inclusive set of health, financial and other benefits that support your total well-being. Learn more at theCapital One Careers website. Eligibility varies based on full or part-time status, exempt or non-exempt status, and management level.

This role is expected to accept applications for a minimum of 5 business days.No agencies please. Capital One is an equal opportunity employer (EOE, including disability/vet) committed to non-discrimination in compliance with applicable federal, state, and local laws. Capital One promotes a drug-free workplace. Capital One will consider for employment qualified applicants with a criminal history in a manner consistent with the requirements of applicable laws regarding criminal background inquiries, including, to the extent applicable, Article 23-A of the New York Correction Law; San Francisco, California Police Code Article 49, Sections 4901-4920; New York City's Fair Chance Act; Philadelphia's Fair Criminal Records Screening Act; and other applicable federal, state, and local laws and regulations regarding criminal background inquiries.

If you have visited our website in search of information on employment opportunities or to apply for a position, and you require an accommodation, please contact Capital One Recruiting at 1-800-304-9102 or via email at RecruitingAccommodation@capitalone.com. All information you provide will be kept confidential and will be used only to the extent required to provide needed reasonable accommodations.

For technical support or questions about Capital One's recruiting process, please send an email to Careers@capitalone.com

Capital One does not provide, endorse nor guarantee and is not liable for third-party products, services, educational tools or other information available through this site.

Capital One Financial is made up of several different entities. Please note that any position posted in Canada is for Capital One Canada, any position posted in the United Kingdom is for Capital One Europe and any position posted in the Philippines is for Capital One Philippines Service Corp. (COPSSC).


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