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Added 3 mins ago
Network Security Engineer
Altera Corporation
San Jose, CA
As a Senior Network Security Engineer at Altera, you will serve as a senior technical authority responsible for defining and advancing the enterprise network security strategy,…
Added 10 mins ago
MB
Senior Data Engineer
M&T Bank
Wilmington, DE
- $97,100 to $161,800 USD / year
Tune SQL, Snowflake and Databricks/Spark workloads for performance and cost using appropriate partitioning, parallelism and compute practices.
Added 14 mins ago
IH
Quality Analyst Engineer - Senior
IHC Health Services Inc (dba Intermountain Health)
WEST VALLEY CITY, UT
- $120,000 to $135,000 USD / year
Employer: ** IHC Health Services, Inc. (dba Intermountain Health) Job Title: Quality Analyst Engineer - Senior Degree Required: Bachelor's degree or equivalent foreign education Academic…
Added 14 mins ago
Sentinel - Sr Principal Systems Engineer
Northrop Grumman
Roy, UT
Northrop Grumman Defense Systems is seeking a Sr. Principal Systems Engineer . This opening is in Roy, UT and will support the Sentinel Program . Northrop Grumman supports the Air Force’s…
Added 14 mins ago
Sr Principal Systems Engineer - Wing Test Capability Lead
Northrop Grumman
Roy, UT
Northrop Grumman Defense Systems is seeking a Sr. Principal Systems Engineer . This opening is in Roy, UT and will support the Sentinel Program . Northrop Grumman supports the Air Force’s…
Added 14 mins ago
Sentinel - Staff Systems Engineer - Flight Test Capability Lead
Northrop Grumman
Roy, UT
Northrop Grumman Defense Systems is seeking a Staff Systems Engineer - Flight Test Capability Lead to join the Sentinel Systems Engineering team located in Roy, UT. Northrop Grumman…
Added 14 mins ago
Senior Quality Engineer
Medtronic
Salt Lake City, UT
As a Senior Quality Engineer, you will provide quality engineering support for manufacturing operations with a primary focus on process validation and quality system execution. This role…
Added 15 mins ago
Lead AI and Data Science Engineer II- Marketing Measurement
Deloitte
Salt Lake City, UT
…collaborative environment? As an experienced Lead AI and Data Science Engineer II - Marketing Measurement, you will have the opportunity to share new ideas and collaborate on projects as a…
Added 15 mins ago
Senior Site Reliability Engineer, CloudOps
ICU MEDICAL INC
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Added 30 mins ago
SMTS Quantum Etch Engineer
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Malta, NY
The Etch Advanced Manufacturing Engineering (AME) SMTS will serve as a senior technical leader responsible for plasma-etch and pattern-transfer technologies supporting next-generation…
Added 31 mins ago
Sr. Process Engineer
Asahi Kasei America
TROY, NY
…Company: Crystal IS, Inc. Job Description: JOB TITLE: Sr. Process Engineer Department: Manufacturing & Substrate Location: Green Island, NY…
Added 31 mins ago
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Sr. Python and Snowflake Developer (Onsite)
Cognizant
Buffalo, NY
- $100,000 to $135,000 USD / year
Job Title: Senior Data Engineer – Snowflake & Python
Added 32 mins ago
Senior Associate, Data Scientist - Alternative Data Strategy
Capital One
New York, NY
…Scientist, you will evaluate emerging vendors and data products, engineer high-impact features, build scalable processing and monitoring systems, and serve as the dedicated data domain…
Added 46 mins ago
G
Waste Water Engineer
GPAC
South Portland, ME
- $80,000 to $100,000 USD / year
We are seeking a Water/Wastewater Engineer to join a growing, multi-disciplinary engineering consulting firm. This individual will contribute to the planning, design, and delivery of…
Added 49 mins ago
Program Analyst, Testing & Installation Support
PMAT
San Diego, CA
…platforms, distributed data platforms, or heterogeneous data analysis. We recruit, retain, and foster a team motivated to pursue passions, investigate new ways of doing things, and embody…
Added 1 hour ago
Application Security Engineer, Proactive Security
Amazon
Seattle, WA
The Application Security (AppSec) Security Engineer is responsible for conducting security assessments and reviews of applications and services to identify vulnerabilities and ensure…
Added 1 hour ago
U
Senior Systems Engineer, AM&D Services & Products
Uber
Seattle, WA
- $171,000 to $190,000 USD / year
As a Senior Systems Engineer in our Autonomous Mobility & Delivery (AM&D) group, you will play a pivotal role in shaping the future of autonomous transportation at Uber.
Added 1 hour ago
G
Water/Wastewater Engineer
GPAC
Elizabethtown, KY
- $70,000 to $180,000 USD / year
We are seeking a Water/Wastewater Engineer to join a growing, multi-disciplinary engineering consulting firm. This individual will contribute to the planning, design, and delivery of…
Added 1 hour ago
Solar Performance Engineering Manager - Power Engineering
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Lenexa, KS
Develop PVsyst models for performance test data validation and analysis of performance test results.
Added 2 hours ago
Senior Insider Threat Engineer
Humana
Atlanta, GA
The Senior Insider Threat Engineer is responsible for the configuration, tuning, and day-to-day optimization of enterprise insider threat technologies at Humana. Reporting to the Insider…
Added 2 hours ago
Senior Manager, AI & Analytics Engineering
The Coca-Cola Company
Atlanta, GA
Engineer production Python and API services with automated testing, CI/CD, monitoring, and clear operational ownership; design for performance, concurrent demand, reliability, scale, and…
Added 2 hours ago
AI PC Performance Engineer
Dell
Austin, TX
Dell's Client Product Group (CPG) is seeking an AI Performance Engineer to join the PC Systems Performance team. In this role, you will build foundational expertise in system-level…
Added 2 hours ago
DR
Sr. Supplier Quality Engineer
Development Resource Group, Inc.
Mounds View, MN
- $48 to $52 USD / hour
We are seeking a Senior Supplier Quality Engineer to support supplier quality, component qualification, and new product development activities. This role partners closely with suppliers and…
Added 2 hours ago
Principal Electrical Design Engineer
Development Resource Group, Inc.
Maple Grove, MN
The Senior/Principal Electrical Engineer will be responsible for the development of new products, including electronic architecture design, detailed circuit design and analysis,…
Added 2 hours ago
A
Senior Quality Engineer
Actalent
Saint Paul, MN
- $92,000 to $98,000 USD / year
The experienced Quality Engineer leads advanced quality initiatives across all manufacturing processes, driving continuous improvement and ensuring the highest level of product quality.…

Cognizant

Sr. Python and Snowflake Developer (Onsite)

Buffalo, NY, United States

$100,000 to $135,000 USD / year

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Job details

Pay: $100,000 to $135,000 USD / year
Experience: 7+ years of experience in data engineering, ETL/ELT, data warehousing, or related development.
Posting language: English
Posted: Nov 6, 2026

Original job description

Cognizant (NASDAQ: CTSH) is a leading provider of information technology, consulting, and business process outsourcing services, dedicated to helping the world's leading companies build stronger businesses. Headquartered in Teaneck, New Jersey (U.S.). Cognizant is a member of the NASDAQ-100, the S&P 500, the Forbes Global 1000, and the Fortune 500 and we are among the top performing and fastest growing companies in the world.

Job Title: Senior Data Engineer – Snowflake & Python

Job Summary:

We are seeking an experienced Snowflake Lead Developer with strong expertise in Snowflake, Python, SQL, and modern data engineering practices. The ideal candidate will design, build, optimize, and support scalable data pipelines and cloud-based data solutions, working with large volumes of structured and semi-structured data.

The role requires hands-on experience with ETL/ELT development, Snowflake data warehousing, Python automation, data quality, performance optimization, CI/CD, and production troubleshooting.

Key Responsibilities

Design, develop, and maintain scalable ETL/ELT data pipelines using Python, SQL, and Snowflake.

Build ingestion and transformation processes for data from sources such as Oracle, SQL Server, APIs, flat files, and cloud object storage.

Develop and optimize Snowflake objects including databases, schemas, tables, views, stages, streams, tasks, and stored procedures.

Write complex and performance-optimized SQL queries for data transformation and analytics workloads.

Work with structured and semi-structured formats including CSV, JSON, Parquet, and XML.

Perform Snowflake performance tuning through query analysis, warehouse sizing, clustering strategy, and optimization of data-processing patterns.

Implement data-quality controls including source-to-target validation, reconciliation, duplicate checks, null checks, schema validation, and exception handling.

Design effective logging, error handling, retry, monitoring, and alerting mechanisms for production pipelines.

Troubleshoot data discrepancies, failed pipelines, performance bottlenecks, and production incidents.

Apply Snowflake security concepts including RBAC, roles, privileges, secure views, and data-access controls.

Participate in code reviews and ensure solutions meet engineering, security, scalability, and maintainability standards.

Build and maintain CI/CD pipelines using Git-based development and deployment practices.

Create and maintain technical documentation, data mappings, operational procedures, and implementation specifications.

Mentor junior engineers and provide technical guidance on Python, SQL, Snowflake, and data-engineering best practices.

Required Qualifications

7+ years of experience in data engineering, ETL/ELT, data warehousing, or related development.

Strong hands-on development experience with Snowflake.

Advanced proficiency in Python for data processing, automation, APIs, and pipeline development.

Advanced SQL skills, including joins, CTEs, window functions, stored procedures, query optimization, and large-volume data processing.

Strong troubleshooting and root-cause-analysis skills.

Experience implementing data-quality, reconciliation, monitoring, and exception-handling frameworks.

Primary Skills : Snowflake, Python, SQL, ETL/ELT, Data Warehousing

Secondary: Git, CI/CD, REST APIs

Snowflake: Streams, Tasks, Stages, Snowpipe, RBAC, Query Optimization, Warehouses

Python: Pandas, APIs, file processing, exception handling, logging, automation

Data: Oracle, SQL Server, CSV, JSON, Parquet, XML

Engineering: Data Quality, Reconciliation, Monitoring, Performance Tuning, Production Support

Candidate Profile

The successful candidate should be a hands-on senior engineer capable of owning a data pipeline from source ingestion through Snowflake transformation and production support. They should be comfortable solving complex Python/SQL problems, optimizing Snowflake workloads, investigating data-quality issues, and designing maintainable solutions rather than simply developing one-off ETL

jobs. Application Accepted: 12/6/2026

The annual salary for this position is between $100,000 - $135,000 depending on experience and other qualifications of the successful candidate.

Benefits: Cognizant offers the following benefits for this position, subject to applicable eligibility requirements:

· Medical/Dental/Vision/Life Insurance

· Paid holidays plus Paid Time Off

· 401(k) plan and contributions

· Long-term/Short-term Disability

· Paid Parental Leave

· Employee Stock Purchase Plan

Disclaimer: The salary, other compensation, and benefits information is accurate as of the date of this posting. Cognizant reserves the right to modify this information at any time, subject to applicable language

Our strength is built on our ability to work together. Our diverse backgrounds offer different perspectives and new ways of thinking. It encourages lively discussions, creativity, productivity, and helps us build better solutions for our clients. We want someone who thrives in this setting and is inspired to craft meaningful solutions through true collaboration.

If you are content with ambiguity, excited by change, and excel through autonomy, we’d love to hear from you!

Cognizant is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to sex, gender identity, sexual orientation, race, color, religion, national origin, disability, protected Veteran status, age, or any other characteristic protected by law.

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