logoAiPathly

Databricks Solutions Architect

first image

Overview

The role of a Solutions Architect at Databricks is multifaceted, combining technical expertise with strategic business acumen and customer-facing responsibilities. This position plays a crucial role in helping organizations leverage the power of data and AI through the Databricks Unified Analytics Platform. Key Aspects of the Role:

  1. Technical Leadership: Solutions Architects provide expert guidance on big data architectures, cloud services integration, and implementation of Databricks solutions. They design and present data systems, including reference architectures and technical guides.
  2. Customer Engagement: Working closely with clients, they identify use cases, develop tailored solutions, and guide implementations to deliver strategic business value. They establish themselves as trusted advisors, building strong relationships with customers.
  3. Collaboration: Solutions Architects work hand-in-hand with sales teams to develop account strategies and collaborate across various Databricks departments, including product and post-sales teams.
  4. Technical Expertise: Proficiency in programming languages such as Python, Scala, Java, SQL, or R is essential. Experience with cloud providers (AWS, Azure, GCP) and data technologies (Spark, Hadoop, Kafka) is crucial.
  5. Open-Source Advocacy: They become experts in and promote Databricks-driven open-source projects like Apache Spark, Delta Lake, and MLflow.
  6. Communication Skills: The ability to convey complex ideas to diverse audiences through presentations, whiteboarding, and demonstrations is vital.
  7. Industry Engagement: Solutions Architects often participate in community events, meetups, and conferences to promote Databricks technologies. Requirements and Qualifications:
  • 3-5+ years of experience in a customer-facing technical role
  • Strong background in data engineering, cloud computing, and machine learning
  • Excellent communication and presentation skills
  • Willingness to travel (up to 30% of the time, mostly within the region)
  • A degree in a quantitative discipline (e.g., Computer Science, Applied Mathematics) This role demands a unique blend of technical prowess, business acumen, and interpersonal skills. Solutions Architects at Databricks are at the forefront of helping organizations harness the power of data and AI, making it an exciting and impactful career choice in the rapidly evolving field of data analytics.

Core Responsibilities

A Solutions Architect at Databricks plays a pivotal role in driving customer success and technological innovation. Their core responsibilities encompass a wide range of technical and strategic activities:

  1. Technical Leadership and Strategy
  • Guide customers through the evaluation and adoption of Databricks solutions
  • Align technical strategies with overall business objectives
  • Develop and implement transformative data and AI strategies
  1. Architecture and Design
  • Design scalable, robust data architectures utilizing Databricks technology
  • Develop ETL pipelines and establish data governance frameworks
  • Create end-to-end solutions that leverage the full potential of the Databricks platform
  1. Customer Engagement and Advisory
  • Serve as the primary technical point of contact for customers
  • Engage with technical leads, architects, and operations teams
  • Build trust and drive tangible business outcomes through expert advice
  1. Proof of Concepts and Demonstrations
  • Develop and present reference architectures and technical guides
  • Create and implement proof of concepts for strategic projects
  • Showcase the capabilities of Databricks through tailored demonstrations
  1. Collaboration and Mentorship
  • Work closely with sales teams to build customer relationships
  • Provide mentorship to team members and foster cross-functional collaboration
  • Contribute to knowledge sharing and best practices within the organization
  1. Technical Expertise and Innovation
  • Maintain cutting-edge knowledge of cloud platforms, data engineering, and machine learning
  • Stay abreast of the latest developments in Apache Spark, MLflow, and Delta Lake
  • Drive innovation in data and AI solutions
  1. Community Engagement and Thought Leadership
  • Represent Databricks at industry events, conferences, and webinars
  • Contribute to the broader data and AI community through knowledge sharing
  • Advocate for Databricks-driven open-source projects
  1. Operational Support and Optimization
  • Provide escalated support for critical customer issues
  • Optimize data workflows for both performance and cost-efficiency
  • Ensure smooth operations of Databricks implementations
  1. Business Alignment and Transformation
  • Translate complex business needs into effective technical solutions
  • Drive data-driven transformation within customer organizations
  • Align Databricks solutions with key business objectives and stakeholders By fulfilling these core responsibilities, Solutions Architects at Databricks play a crucial role in helping organizations unlock the full potential of their data and AI initiatives, positioning themselves at the forefront of the data analytics revolution.

Requirements

To excel as a Solutions Architect at Databricks, candidates should possess a combination of technical expertise, business acumen, and interpersonal skills. The following requirements are essential for this role:

  1. Professional Experience
  • 3-10+ years in data engineering, solutions architecture, or similar pre-sales/consulting roles
  • Proven track record in designing and implementing large-scale data solutions
  • Experience in customer-facing technical roles
  1. Technical Proficiency
  • Strong programming skills in Python, Scala, Java, SQL, or R
  • Expertise in data engineering technologies (Apache Spark, Hadoop, Kafka)
  • Proficiency in cloud platforms (AWS, Azure, GCP)
  • Knowledge of data science and machine learning tools (pandas, scikit-learn, TensorFlow)
  • Experience with data warehousing concepts and big data processing
  1. Cloud and Architecture Expertise
  • Hands-on experience designing and deploying cloud-native architectures
  • Familiarity with distributed, fault-tolerant enterprise applications
  • Understanding of cloud PaaS services, including security, monitoring, and scaling
  1. Data Architecture and Engineering Skills
  • Ability to design scalable, high-performance data architectures
  • Experience in implementing ETL pipelines and data governance frameworks
  • Knowledge of both batch and real-time data processing
  1. Leadership and Collaboration
  • Technical leadership skills to guide teams and define best practices
  • Ability to collaborate effectively with cross-functional teams
  • Experience in mentoring and knowledge sharing
  1. Communication and Advisory Skills
  • Excellent presentation and whiteboarding abilities
  • Capacity to explain complex technical concepts to diverse audiences
  • Skill in building trust and acting as a strategic advisor to clients
  1. Education and Certifications
  • Bachelor's degree in Computer Science or a related field (preferred)
  • Relevant certifications (e.g., Databricks, cloud platforms) are advantageous
  1. Additional Desirable Skills
  • Experience with Infrastructure as Code (IaC) frameworks
  • Knowledge of CI/CD and DevSecOps practices
  • Familiarity with data governance and compliance standards
  1. Personal Attributes
  • Strong problem-solving and analytical thinking skills
  • Adaptability and willingness to learn new technologies
  • Customer-centric mindset and business acumen
  • Ability to work in a fast-paced, dynamic environment
  1. Travel Requirements
  • Willingness to travel up to 30% of the time, primarily within the region This comprehensive set of requirements ensures that Solutions Architects at Databricks are well-equipped to drive innovation, solve complex data challenges, and deliver significant value to customers in the rapidly evolving field of data analytics and AI.

Career Development

Career development for a Databricks Solutions Architect offers numerous opportunities for growth and advancement in the field of data and AI technologies. This role combines technical expertise with customer engagement, providing a unique platform for professional expansion.

Technical Leadership and Architecture

  • Design and implement scalable data architectures
  • Consult on big data architectures
  • Develop proof of concepts for strategic customer projects
  • Promote adoption of Databricks Unified Analytics Platform and open-source projects

Customer Engagement

  • Work closely with customers to understand business needs
  • Develop account strategies
  • Guide implementation of Databricks solutions
  • Build relationships and establish trust with clients

Skill Enhancement

  • Continuous learning on cutting-edge technologies
  • Develop expertise in data engineering, analytics, and machine learning
  • Stay updated with advancements in cloud platforms and open-source projects

Leadership and Mentorship

  • Lead design and implementation of data platforms
  • Define best practices
  • Mentor team members
  • Influence technical direction of the organization

Industry Expertise

  • Gain experience across various sectors (e.g., financial services, transportation, insurance, media)
  • Tackle complex, multifactor environments
  • Broaden industry knowledge

Community Engagement

  • Participate in meetups, conferences, and webinars
  • Promote Databricks-driven open-source projects
  • Build professional network
  • Establish expertise in the field

Qualifications and Experience

  • Typically requires 5-10 years of experience in customer-facing pre-sales, technical architecture, or consulting roles
  • Strong focus on big data technologies and cloud ecosystems
  • Degree in quantitative discipline often preferred (e.g., Computer Science, Applied Mathematics, Operations Research)

Compensation and Benefits

  • Competitive salary range (estimates from $135,200 to $201,200 or more)
  • Comprehensive benefits plans
  • Opportunities for personal and professional development
  • Performance-based incentives This role offers a dynamic career path that combines technical challenges with business strategy, positioning professionals at the forefront of data and AI innovation.

second image

Market Demand

The demand for Databricks Solutions Architects is robust and growing, driven by the increasing adoption of data and AI technologies across industries. This section explores the factors contributing to the high market demand for this role.

Industry Impact and Company Growth

  • Databricks serves over 10,000 organizations worldwide
  • More than 50% of Fortune 500 companies use Databricks solutions
  • Rapid growth in the data and AI sector fuels demand for expert implementation and support

Multiple Job Openings

  • Diverse roles available across various sectors
  • Openings in general and specialized areas (e.g., emerging digital, public sector, financial services, retail)
  • Indicates broad and ongoing need for Solutions Architects

Critical Responsibilities

  • Designing scalable data architectures
  • Partnering with sales teams for account strategies
  • Providing technical leadership on big data, data science, and machine learning projects
  • Building and presenting reference architectures and demo applications
  • Promoting open-source projects in developer communities

Technical Expertise Required

  • Experience in customer-facing pre-sales, technical architecture, or consulting
  • Proficiency in technologies like Apache Spark, Hadoop, Kafka, SQL, and data science tools
  • Programming skills in Python, Scala, Java, or R
  • Experience with major cloud providers (AWS, Azure, GCP)

Geographic Flexibility

  • Opportunities available across various locations
  • Remote work options offered
  • Indicates widespread need for Solutions Architects

Industry-Wide Adoption of Data Solutions

  • Growing importance of data-driven decision making
  • Increased focus on AI and machine learning across sectors
  • Need for experts to implement and optimize data solutions

Evolving Technology Landscape

  • Rapid advancements in big data and AI technologies
  • Continuous updates to Databricks platform and open-source projects
  • Demand for professionals who can adapt to and leverage new technologies The strong market demand for Databricks Solutions Architects reflects the critical role these professionals play in helping organizations harness the power of data and AI. As businesses continue to prioritize data-driven strategies, the need for skilled Solutions Architects is likely to persist and grow.

Salary Ranges (US Market, 2024)

Databricks offers competitive compensation packages for Solution Architects, reflecting the high demand and critical nature of the role. This section provides an overview of salary ranges and compensation structures in the US market for 2024.

Total Compensation Overview

  • Range: $192,000 to $361,000 annually
  • Average: Approximately $300,000 per year
  • Most salaries fall between $258,000 and $535,000

Level-Based Compensation Breakdown

L3 (Solution Architect)

  • Total: $192,000 per year
  • Base Salary: $147,000
  • Stock Options: $24,300
  • Bonus: $20,600

L4 (Solution Architect)

  • Total: $250,000 per year
  • Base Salary: $151,000
  • Stock Options: $57,600
  • Bonus: $42,300

L5 (Solution Architect)

  • Total: $296,000 per year
  • Base Salary: $174,000
  • Stock Options: $84,600
  • Bonus: $37,900

L6 (Staff Solution Architect)

  • Total: $354,000 per year
  • Base Salary: $200,000
  • Stock Options: $119,000
  • Bonus: $34,300

Key Statistics

  • Median Total Compensation: $300,000 per year
  • Highest Reported Salary: $637,000 per year
  • Top 10% of employees earn more than $408,000 annually

Compensation Components

  • Base Salary: Forms the foundation of the compensation package
  • Stock Options: Significant component, increasing with seniority
  • Performance Bonus: Varies based on individual and company performance

Factors Influencing Compensation

  • Experience Level: Salaries increase with years of experience and expertise
  • Performance: High performers may receive larger bonuses and stock grants
  • Location: Some variation based on cost of living in different regions
  • Market Demand: High demand for skilled Solution Architects drives competitive salaries

Career Progression

  • Clear salary progression from L3 to L6 levels
  • Significant increases in stock options and total compensation at higher levels These salary ranges demonstrate the value Databricks places on Solution Architects and the potential for substantial earnings in this role. As with any compensation data, individual salaries may vary based on specific circumstances and negotiations.

Databricks Solutions Architects play a pivotal role in driving innovation across various industries through the integration of advanced data and AI technologies. Here's an overview of key industry trends and their impact:

Manufacturing

  • Predictive Maintenance: Implementing ML algorithms to forecast equipment failures, reducing downtime.
  • Quality Control: Applying advanced analytics to IoT sensor data for rapid identification and resolution of quality issues.
  • Customer 360: Consolidating disparate datasets for comprehensive customer profiling and relationship management.
  • Defect Detection: Utilizing computer vision powered by Databricks Lakehouse for precise defect identification.
  • Production Optimization: Real-time monitoring of key performance indicators and dynamic capacity allocation using ML-driven insights.

Financial Services

  • Big Data Architecture: Consulting on and implementing data engineering pipelines and machine learning projects.
  • Cloud Integration: Validating integrations with cloud services and third-party applications to enhance operations.
  • Compliance and Risk Management: Leveraging Databricks' data governance tools to ensure regulatory compliance.

Cross-Industry Applications

  • Lakehouse Architecture: Promoting Databricks Lakehouse architecture to simplify data storage and accessibility.
  • Open-Source Utilization: Advocating for open-source projects like Apache Spark, Delta Lake, and MLflow to enhance data capabilities.
  • Digital Transformation: Accelerating initiatives to achieve higher data literacy and faster time to value.
  • Supply Chain Optimization: Using predictive models and real-time data for inventory management and logistics control.
  • Energy Efficiency and ESG: Implementing analytical models to optimize energy consumption and align with ESG objectives.
  • Customer Engagement: Enhancing engagement through holistic customer profiling and predictive field service. By leveraging these technologies and trends, Databricks Solutions Architects enable organizations across industries to innovate, optimize operations, and achieve their business goals.

Essential Soft Skills

Databricks Solutions Architects require a blend of technical expertise and soft skills to excel in their role. Here are the key soft skills essential for success:

Communication

  • Ability to translate technical details into business language
  • Effective presentation and whiteboarding skills
  • Clear articulation of ideas to diverse audiences

Interpersonal Skills

  • Building rapport with cross-functional teams
  • Collaborating effectively with business leaders, project managers, and IT teams
  • Managing relationships with stakeholders and vendors

Leadership

  • Providing vision and direction for project teams
  • Guiding customers through Databricks Unified Analytics Platform adoption
  • Delivering strategic business value through effective implementation

Project Management

  • Planning and overseeing IT projects from inception to completion
  • Defining project scope and managing timelines
  • Allocating resources and mitigating risks

Analytical and Critical Thinking

  • Solving complex problems through critical analysis
  • Identifying and evaluating risks
  • Ensuring solutions meet required standards

Adaptability

  • Rapidly responding to changes in external environments
  • Managing technological changes efficiently
  • Updating systems with minimal disruption

Negotiation

  • Resolving conflicts and achieving consensus on project deliverables
  • Prioritizing requirements among various stakeholders

People Skills

  • Maneuvering business requirements and expected outcomes
  • Providing advice, explanations, and empathy
  • Influencing and navigating solutions effectively By combining these soft skills with technical expertise, Databricks Solutions Architects can lead and deliver complex data and AI solutions successfully.

Best Practices

To ensure optimal design, implementation, and maintenance of Databricks solutions, Solutions Architects should adhere to the following best practices:

Operational Excellence

  • Establish a dedicated Lakehouse operations team for platform operations, security, and compliance
  • Create internal blueprints and best practices for infrastructure automation and self-service access

Source Code Management and DevOps

  • Utilize Enterprise source code management tools like Git for tracking changes and maintaining code integrity
  • Standardize DevOps processes using CI/CD pipelines for automated building, testing, and deployment

Infrastructure and Deployment Automation

  • Use Infrastructure as Code (IaC) tools such as HashiCorp Terraform for managing and provisioning resources
  • Automate deployments and workloads to ensure consistent cloud infrastructure across environments

Compute Configuration

  • Standardize compute configurations across all environments for consistency and reproducibility
  • Implement compute policies to enforce Spark configuration settings and cluster-scoped library installations

Data Management

  • Implement Delta Lake for ACID transactions, schema validation, and optimization features
  • Analyze workload usage patterns to prioritize use cases and optimize migration sequences

Security and Compliance

  • Manage identity and access using the least privilege principle
  • Configure single sign-on, multi-factor authentication, and separate admin accounts
  • Implement encryption for data in transit and at rest

Performance Monitoring

  • Regularly monitor and optimize performance using Databricks tools and dashboards
  • Implement performance optimization techniques such as query optimization and data caching

Automation and Workflow Management

  • Automate data workflows using Databricks Workflows
  • Integrate workflows with CI/CD pipelines for consistent updates and scalability

End-to-End Transformation

  • Transform workloads end-to-end, including business logic and orchestration code
  • Plan phased migration strategies with extensive testing before legacy system decommissioning

Reliability and Resilience

  • Utilize Apache Spark's resilient distributed data engine for automatic task rescheduling
  • Actively manage schemas using Delta Lake's validation and enforcement features By following these best practices, Solutions Architects can ensure the reliability, security, and scalability of Databricks solutions while optimizing performance and cost efficiency.

Common Challenges

Databricks Solutions Architects face various challenges in managing and optimizing data analytics pipelines. Here are key challenges and their solutions:

Data Volume and Complexity

  • Challenge: Handling large datasets with complex structures
  • Solution: Leverage parallel processing capabilities and maintain a library of user-defined functions (UDFs)

Data Source Variability

  • Challenge: Inconsistencies and formatting issues from diverse data sources
  • Solution: Build a regimented ingestion framework to standardize formats and ensure data integrity

Evolving Schemas

  • Challenge: Frequent schema changes rendering validation rules obsolete
  • Solution: Implement a comprehensive schema registry with version control mechanisms

Stateful Data Validation

  • Challenge: Complexity in tracking data state in large-scale pipelines
  • Solution: Utilize Databricks' built-in features and integrate external tools for efficient stateful validation

Tool Integration

  • Challenge: Compatibility issues when integrating external tools
  • Solution: Establish a centralized validation tool repository with pre-vetted, compatible tools and libraries

Managing Data Pipelines

  • Challenge: Complexity in building and maintaining pipelines for diverse data sources
  • Solution: Use Spark Structured Streaming or Delta Live Tables for automated pipeline management

Parsing Diverse Log Formats

  • Challenge: Handling structured, semi-structured, and unstructured logs
  • Solution: Implement transformations to flatten, join, or un-nest complex data structures

Complex Log Data

  • Challenge: Transforming nested JSON logs with complex structures
  • Solution: Utilize Databricks Photon or specialized tools for efficient log transformation

Alerting Limitations

  • Challenge: Lack of native support for real-time or complex alerting
  • Solution: Integrate with purpose-built log analytics or alerting platforms

Data Reliability and Quality

  • Challenge: Ensuring consistent data quality across diverse sources
  • Solution: Leverage Delta Lake for ACID transactions, schema enforcement, and data consistency By addressing these challenges through Databricks' native features and strategic integrations, Solutions Architects can build robust, efficient, and reliable data management and analytics pipelines.

More Careers

Data Processing Specialist

Data Processing Specialist

Data Processing Specialists play a crucial role in managing and interpreting data for organizations. Their responsibilities encompass a wide range of data-related tasks, from collection and organization to analysis and reporting. Here's a comprehensive overview of this profession: ### Key Responsibilities - Collect, interpret, and organize data from various sources - Manage databases, spreadsheets, and other data storage systems - Validate and clean data to ensure accuracy and consistency - Perform routine data analysis and create reports for stakeholders - Assist in administrative and support activities related to data management ### Educational Requirements - Typically requires an associate's or bachelor's degree in computer science, business, or a related field - Some entry-level positions may accept a high school diploma, but higher education is preferred ### Skills and Certifications - Proficiency in data entry and computer programs (e.g., Microsoft Office Suite) - Strong analytical and problem-solving abilities - Excellent communication and teamwork skills - Relevant certifications (e.g., Certified Billing and Coding Specialist) can enhance job prospects ### Work Environment and Career Growth - Often work under senior personnel supervision - Can be demanding with high stress levels, but offers good work-life balance - Opportunities for advancement to roles such as data analyst, business analyst, or IT manager ### Salary and Benefits - Average annual salary in the U.S. ranges from $30,000 to $78,000 - Benefits may include health insurance, life insurance, and professional development opportunities In summary, Data Processing Specialists are essential for ensuring accurate and efficient data handling within organizations, requiring a blend of technical skills, analytical thinking, and effective communication.

Data Product Analyst

Data Product Analyst

A Data Product Analyst plays a pivotal role in product development and optimization through data-driven insights. This role combines analytical skills with business acumen to enhance product performance and user experience. Key Responsibilities: - Data Analysis: Collect and analyze data from various sources, including user feedback and product metrics. - Product Evaluation: Monitor key performance indicators and assess product performance against goals. - Market Research: Conduct research to understand industry trends and customer needs. - User Experience Enhancement: Analyze user interactions to identify areas for improvement. - Cross-Functional Collaboration: Work with multiple teams to align product strategies. - Communication: Clearly convey complex data insights to diverse stakeholders. Skills and Tools: - Technical Proficiency: SQL, data analysis tools, and product management platforms. - Analytical and Problem-Solving Skills: Ability to interpret data and propose innovative solutions. - Strategic Thinking: Develop creative approaches to product challenges. - Data Visualization: Present insights through tools like Countly and MS Office applications. Education and Experience: - Education: Bachelor's degree in relevant fields such as business, mathematics, or computer science. - Experience: Several years in data analysis and product development roles. The Data Product Analyst role is essential in ensuring products meet customer needs and business objectives through data-driven decision-making and cross-functional collaboration.

Data Product Lead

Data Product Lead

A Data Product Lead, often referred to as a Data Product Manager (DPM), is a specialized role that combines product management, data science, and technical expertise to oversee the development and utilization of data-centric products within an organization. This role is crucial in today's data-driven business landscape. Key aspects of the Data Product Lead role include: 1. **Business Alignment**: DPMs identify business needs by engaging with stakeholders across the organization, from executives to marketing teams. They define how data can address challenges and drive growth, ensuring that data products align with overall business objectives. 2. **Technical Translation**: They translate business requirements into technical specifications, creating detailed documentation such as user stories, data flow diagrams, and entity relationship diagrams for development teams. 3. **Cross-Functional Collaboration**: DPMs act as a bridge between technical teams (data engineers, data scientists, software developers) and business stakeholders, facilitating effective communication and coordination throughout the product development lifecycle. 4. **Product Strategy**: They create and maintain product roadmaps, prioritize features, and allocate resources efficiently to ensure data products deliver maximum value. 5. **Data Quality and Compliance**: DPMs focus on maintaining high-quality, reliable data and ensuring compliance with relevant regulations. 6. **Innovation**: They drive product development and innovation, adapting data products to evolving market demands and technological advancements. Key skills for a Data Product Lead include: - Technical expertise in data architecture, analytics tools, and sometimes machine learning and AI - Strong analytical thinking and data interpretation abilities - Excellent communication and interpersonal skills - Product management proficiency, including roadmap planning and stakeholder management - Strategic thinking to align data products with business goals DPMs play a crucial role in data democratization, making data accessible and valuable across the organization. They oversee the entire lifecycle of data products, from conception to deployment, focusing on usability and business impact. Unlike traditional product managers, DPMs specialize in data as a product. They possess deeper technical knowledge in data-specific concepts and rely heavily on data-driven insights for decision-making. This unique blend of skills positions Data Product Leads as key players in leveraging an organization's data assets for competitive advantage.

Data Production Lead

Data Production Lead

The role of a Data Production Lead is a crucial position in the data management and engineering field, combining technical expertise with leadership skills to ensure efficient data utilization within an organization. Key responsibilities include: - **Data Architecture and Management**: Optimizing data architecture and implementing software processes for efficient data flow between systems. - **ETL Processes**: Designing and implementing Extract, Transform, Load (ETL) processes to prepare high-quality data for various stakeholders. - **Data Analysis and Insights**: Analyzing data to derive business-relevant insights and communicating findings to aid in data-driven decision-making. - **Team Management**: Leading a team of data engineers and analysts, addressing performance issues, and hiring suitable candidates. - **Stakeholder Management**: Balancing competing priorities of various stakeholders while maintaining the data team's objectives. Technical skills required for this role typically include: - Strong background in computer science - Excellent knowledge of SQL - Programming experience in modern languages (e.g., Python) - Familiarity with tools like Redshift, APIs, Git, Linux, AWS, and Google Cloud Effective communication skills are crucial for collaborating with IT teams, data analysts, business stakeholders, and external vendors. The ability to clearly convey complex data insights is vital for success in this role. In essence, a Data Production Lead bridges the gap between technical data management and business strategy, ensuring that data is leveraged effectively to drive organizational success.