Senior Data Warehouse Developer Job at DefineX (Istanbul)

Senior Software Developer - ETL

We are seeking a highly experienced Senior Software Developer - ETL to design, d...

Location

Canada , Toronto

Salary:

Not provided

Randstad

Expiration Date

February 22, 2026

Requirements

Experience with the Microsoft suite of technology, including: Azure Data Factory, Azure SQL Database, Azure Data Lake, and Power BI
Experience with developing data extraction, transformation, and load programs (daily and initial load) functionality on a wide range of data repositories (structured and semi-structured files, relational and multi-dimensional data stores)
Experience with developing, implementing, and maintaining schedule/dependency logic for Extract Transform Load (ETL) scripts
Experience with data integration, data cleansing, and data analytics
Experience with data modeling and design principles for data marts and data warehouses
Experience in database management and administration
Experience in constructing complex SQL queries and performance tuning
Experience with Git and knowledge of source control strategies
Experience creating technical documentation including ETL source-to-target mappings, data model diagrams, architecture artifacts, detailed design documents, etc.

Job Responsibility

ETL Design and Implementation: Designing, implementing, and continuously expanding data pipelines by performing extraction, transformation, and loading activities, with a focus on daily and initial load programs
Technology Stack: Utilizing the Microsoft suite of technology, including Azure Data Factory, Azure SQL Database, Azure Data Lake, and Power BI
Coding & Quality: Translating technical systems specifications into working, tested applications by writing high-quality code. This includes writing and/or generating code, compiling data-driven programs, and conducting unit tests
Data Expertise: Applying expertise in data integration, data cleansing, and data analytics. Designing and implementing data modeling and design principles for data marts and data warehouses
Database Optimization: Constructing complex SQL queries and performing performance tuning. Possessing experience in database management and administration
SDLC & Documentation: Collaborating with IT Professionals throughout the SDLC, ensuring applications remain scalable while complying with standards. Creating comprehensive technical documentation including ETL source-to-target mappings, data model diagrams, and detailed design documents
Troubleshooting & Support: Resolving and troubleshooting technical problems within ETL pipelines, notifying end-users of issues, and proposing adequate solutions.

What we offer

Long-Term Engagement: Secure a 12-month contract with the potential for extension
Onsite Collaboration: Work fully onsite in Toronto, fostering strong team dynamics and collaboration.

Senior Data Engineer

Intratek Computer, Inc. is seeking a highly skilled and experienced Sr Data Engi...

Location

United States , Los Angeles

Salary:

Not provided

Intratek Computer, Inc.

Expiration Date

Until further notice

Requirements

Proficiency in WhereScape RED for data warehouse automation, including designing, building, and managing data warehouses
Expertise in Snowflake’s cloud data platform, including data loading, transformation, and querying using Snowflake SQL
Experience with SQL-based development, optimization, and tuning for large-scale data processing
Strong understanding of dimensional modeling concepts and experience in designing and implementing data models for analytics and reporting purposes
Ability to optimize data pipelines and queries for performance and scalability
Familiarity with Snowflake’s features such as virtual warehouses, data sharing, and data governance capabilities
Knowledge of WhereScape scripting language (WSL) for customizing and extending automation processes
Experience with data integration tools and techniques to ingest data from various sources into Snowflake
Understanding of data governance principles and experience implementing data governance frameworks within Snowflake
Ability to implement data quality checks and ensure data integrity within the data warehouse environment

What we offer

Medical benefits
Paid vacation
Paid holidays

Fulltime

Senior Data Engineer

We are looking for a highly skilled Senior Data Engineer to lead the design and ...

Location

United Kingdom

Salary:

45000.00 - 60000.00 GBP / Year

Activate Group Limited

Expiration Date

Until further notice

Requirements

Proven experience as a Senior Data Engineer, BI/Data Warehouse Engineer, or similar
Strong hands-on expertise with Microsoft Fabric and related services
End-to-end DWH development experience, from ingestion to modelling and consumption
Strong background in data modelling, including star schema, dimensional modelling and semantic modelling
Experience with orchestration, monitoring and optimisation of data pipelines
Proficiency in SQL and strong understanding of database principles
Ability to design scalable data architectures aligned to business needs

Job Responsibility

Lead the design, architecture and build of a new enterprise data warehouse on Microsoft Fabric
Develop robust data pipelines, orchestration processes and monitoring frameworks using Fabric components (Data Factory, Data Engineering, Lakehouse)
Create scalable and high-quality data models to support analytics, Power BI reporting and self-service data consumption
Establish and enforce data governance, documentation and best practices across the data ecosystem
Collaborate with cross-functional teams to understand data needs and translate them into technical solutions
Provide technical leadership, mentoring and guidance to junior team members where required

What we offer

33 days holiday (including bank holidays)
Personal health cash plan – claim back the cost of things like dentist and optical check ups
Enhanced maternity / paternity / adoption / shared parental pay
Life assurance: three times basic salary
Free breakfasts and fruit
Birthday surprise for everybody

Fulltime

Senior Data Scientist – Audience Data Product

We are looking for a Senior Data Scientist – Audience Data Product to join our G...

Location

United States , Bethesda, MD

Salary:

52.06 - 82.45 USD / Hour

Marriott Bonvoy

Expiration Date

Until further notice

Requirements

4-year degree from an accredited university in Data Analytics, Computer Science, Engineering, Information Systems, or a similar quantitative discipline, with 4+ years of experience demonstrating progressive career growth and a history of exceptional performance in data science or analytics OR 2+ years of experience in data science or analytics with a Master's degree
Proven experience in building and optimizing audience segmentation and lookalike models for targeted advertising using data science techniques, including clustering, classification, and predictive modeling
Strong experience with writing AI/ML models in Python, Spark or SQL, and familiarity with cloud data warehouses (e.g., Snowflake, AWS) for data processing and model deployment
Demonstrated ability to use data science methodologies (e.g., machine learning, statistical modeling) to analyze and optimize large-scale datasets for audience targeting
Ability to collaborate cross-functionally with marketing, digital, and technology teams to align on broader data strategies and contribute insights to media optimization and performance measurement

Job Responsibility

Design and develop audience segmentation and various lookalike models to optimize targeting across owned & paid channels
Work with cross-functional teams to collect, analyze, and optimize media exposure data for continuous media optimization and audience measurement
Collaborate closely with teams from marketing, digital, and technology to evolve the media data ecosystem, leveraging advanced tools such as cloud data warehouses (Snowflake), data cleanrooms, and customer data platforms (CDPs)
Develop and implement segmentation and modeling strategies
Collaborate with marketing and analytics teams to design and build segmentation models and lookalike models for optimized targeting across paid media channels
Work with the AdTech and IT teams to ensure effective integration and deployment of data infrastructure that supports segmentation and audience activation efforts
Align segmentation models and tactics with the broader organizational data strategy to ensure consistency with long-term business goals and objectives
Collaborate closely with marketing and analytics teams to define key performance indicators (KPIs) and data requirements for optimizing segmentation strategies, improving campaign targeting, and driving ROI
Collaborate with technical teams and vendors (e.g., AWS, Snowflake) to build and enhance infrastructure that supports data-driven segmentation, model development, and performance measurement
Identify and work on improving processes that enhance data quality and reduce manual interventions in segmentation model development and activation workflows

What we offer

Coverage for medical, dental, vision, health care flexible spending account, dependent care flexible spending account, life insurance, disability insurance, accident insurance, adoption expense reimbursements, paid parental leave, 401(k) plan, stock purchase plan, discounts at Marriott properties, commuter benefits, employee assistance plan, and childcare discounts

Fulltime

Senior Software Engineer - Data Infrastructure

We build the data and machine learning infrastructure to enable Plaid engineers ...

Location

United States , San Francisco

Salary:

180000.00 - 270000.00 USD / Year

Plaid

Expiration Date

Until further notice

Requirements

5+ years of software engineering experience
Extensive hands-on software engineering experience, with a strong track record of delivering successful projects within the Data Infrastructure or Platform domain at similar or larger companies
Deep understanding of one of: ML Infrastructure systems, including Feature Stores, Training Infrastructure, Serving Infrastructure, and Model Monitoring OR Data Infrastructure systems, including Data Warehouses, Data Lakehouses, Apache Spark, Streaming Infrastructure, Workflow Orchestration
Strong cross-functional collaboration, communication, and project management skills, with proven ability to coordinate effectively
Proficiency in coding, testing, and system design, ensuring reliable and scalable solutions
Demonstrated leadership abilities, including experience mentoring and guiding junior engineers

Job Responsibility

Contribute towards the long-term technical roadmap for data-driven and machine learning iteration at Plaid
Leading key data infrastructure projects such as improving ML development golden paths, implementing offline streaming solutions for data freshness, building net new ETL pipeline infrastructure, and evolving data warehouse or data lakehouse capabilities
Working with stakeholders in other teams and functions to define technical roadmaps for key backend systems and abstractions across Plaid
Debugging, troubleshooting, and reducing operational burden for our Data Platform
Growing the team via mentorship and leadership, reviewing technical documents and code changes

What we offer

medical, dental, vision, and 401(k)
equity and/or commission

Fulltime

Senior Data Warehousing Specialist

The Data Warehousing Specialist will bring senior-level knowledge and experience...

Location

United States , Lakewood

Salary:

Not provided

Visvero, Inc

Expiration Date

Until further notice

Requirements

At least 5 years’ experience with building data warehouses (including spatial data)
Experience working with data dashboards, reports, maps, or other visualizations from aggregated data

Job Responsibility

Bring senior-level knowledge and experience in building data integrations such as geospatial and alphanumeric data warehouses and/or data lakes
Consolidate and geospatially enable data
Publish data to meet user needs for mapping, reporting, and geospatial analysis or self-service business intelligence (BI) activities
Utilize task planning, project management, and coordination skills to work effectively with other data and project team members and leadership
Apply experience in a variety of data warehousing tools from both traditional data warehouse and data lake perspective and from techniques used in the Modern Data Stack and/or other modern approaches to managing spatial data warehouses
Use experience in data analysis, presentation, or self-service BI approaches to develop proof of concept and prototype reports and maps to help end users visualize and interrogate data contained within the data warehouse

Senior AWS Data Engineer / Data Platform Engineer

We are seeking a highly experienced Senior AWS Data Engineer to design, build, a...

Location

United Arab Emirates , Dubai

Salary:

Not provided

NorthBay

Expiration Date

Until further notice

Requirements

8+ years of experience in data engineering and data platform development
Strong hands-on experience with: AWS Glue
Amazon EMR (Spark)
AWS Lambda
Apache Airflow (MWAA)
Amazon EC2
Amazon CloudWatch
Amazon Redshift
Amazon DynamoDB
AWS DataZone

Job Responsibility

Design, develop, and optimize scalable data pipelines using AWS native services
Lead the implementation of batch and near-real-time data processing solutions
Architect and manage data ingestion, transformation, and storage layers
Build and maintain ETL/ELT workflows using AWS Glue and Apache Spark on EMR
Orchestrate complex data workflows using Apache Airflow (MWAA)
Develop and manage serverless data processing using AWS Lambda
Design and optimize data warehouses using Amazon Redshift
Implement and manage NoSQL data models using Amazon DynamoDB
Utilize AWS DataZone for data governance, cataloging, and access management
Monitor, log, and troubleshoot data pipelines using Amazon CloudWatch

Fulltime

Senior ETL Developer

Embark on a transformative journey as a Senior ETL Developer at Barclays, where ...

Location

United States , Whippany

Salary:

120000.00 - 175000.00 USD / Year

Barclays

Expiration Date

Until further notice

Requirements

Designing and building large-scale, highly optimized data warehouses and data marts
Python, SQL, Informatica, and shell scripting
Writing and optimizing multi-layered SQL queries for performance and scalability
Overseeing large-scale batch processing and job scheduling using tools like Autosys
Supporting production environments and navigating the change management lifecycle

Job Responsibility

Development and delivery of high-quality software solutions by using industry aligned programming languages, frameworks, and tools. Ensuring that code is scalable, maintainable, and optimized for performance
Cross-functional collaboration with product managers, designers, and other engineers to define software requirements, devise solution strategies, and ensure seamless integration and alignment with business objectives
Collaboration with peers, participate in code reviews, and promote a culture of code quality and knowledge sharing
Stay informed of industry technology trends and innovations and actively contribute to the organization’s technology communities to foster a culture of technical excellence and growth
Adherence to secure coding practices to mitigate vulnerabilities, protect sensitive data, and ensure secure software solutions
Implementation of effective unit testing practices to ensure proper code design, readability, and reliability

What we offer

Competitive holiday allowance
Life assurance
Private medical care
Pension contribution
Medical, dental and vision coverage
401(k)
life insurance
other paid leave for qualifying circumstances
incentive award eligibility

Fulltime

Senior Data Warehouse Developer

DefineX

Location:
Turkey , Istanbul

Category:
IT - Software Development

Contract Type:
Not provided

Salary:

Job Description:

Job Responsibility:

Requirements:

Nice to have:

Additional Information:

Job Posted:
January 15, 2026

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Location:Turkey , Istanbul

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