Willis Towers Watson

Principal Data Engineer - H&B Data & Analytics Platform

Willis Towers Watson$180K — $225K *
Information Technology
8 - 10 years of experience
Job Overview by Ladders

Qualifications

  • University degree in Computer Science, Mathematics, Engineering, or related field.
  • 8+ years in data or platform engineering roles.
  • Expertise in cloud-based large-scale data pipelines (Azure, AWS, GCP).
  • Strong proficiency with distributed data processing (e.g., Spark).
  • Advanced SQL and Python programming skills.
  • Experience with data ingestion tools such as Matillion, FiveTran, and Airbyte.
  • Extensive hands-on experience with Databricks and Lakehouse architecture strongly preferred.

Responsibilities

  • Lead design and evolution of enterprise-scale data platforms.
  • Define and enforce data engineering standards and best practices.
  • Design, build, and optimize high-performance data pipelines.
  • Improve reliability and cost efficiency of existing data assets.
  • Implement frameworks to accelerate delivery across teams.
  • Ensure platform compliance with regulatory and enterprise risk requirements.
  • Mentor engineers to enhance the technical capability of the team.

Benefits

  • Health benefits including medical, dental, and vision coverage.
  • Flexible Spending Accounts and Commuter Account options.
  • Paid Holidays and Annual Paid Time Off including state-required leave.
  • Contributory Pension Plan and 401(k) Savings Plan.
Full Job Description
Job Description

About the role

The Principal Data Engineer is a senior, hands-on technical leader responsible for designing, building, and evolving scalable, reliable, and cost-efficient data and analytic platforms that power analytics, reporting, and advanced AI/predictive use cases. This role sets engineering standards, drives platform modernization, and mentors engineering teams while partnering closely with architecture, analytics, product, and governance stakeholders.

Technical Leadership & Architecture
  • Lead the design and evolution of enterprise-scale data platforms, including ingestion, transformation, storage, and consumption layers
  • Define and enforce data engineering standards, patterns, and best practices (e.g., pipeline design, testing, CI/CD, observability)
  • Serve as a technical authority on data architecture decisions, trade-offs, and platform strategy

Platform & Pipeline Engineering
  • Design, build, and optimize high-performance batch and streaming data pipelines
  • Improve reliability, performance, scalability, and cost efficiency of existing data assets
  • Implement reusable frameworks and reference architectures to accelerate delivery across teams

Databricks & Lakehouse Focus (Strongly Preferred)
  • Design and operate Databricks-based lakehouse solutions using Delta Lake, Spark, and notebooks/jobs
  • Establish best practices for Databricks workspace architecture, security, performance tuning, and cost management
  • Lead or support migrations to Databricks and modernization of legacy data pipelines

Data Quality, Governance & Security
  • Partner with data governance and security teams to embed data quality checks, metadata, lineage, and access controls into pipelines
  • Ensure platforms support regulatory, compliance, and enterprise risk requirements

Cross-Functional Collaboration
  • Work closely with data architects, analytic engineers, data scientists, product owners, and business stakeholders
  • Translate business and analytic requirements into scalable technical solutions
  • Influence roadmaps by tying platform investments to measurable business outcomes

Mentorship & Engineering Excellence
  • Mentor senior and mid-level engineers; raise the overall technical bar of the team
  • Lead by example through hands-on contribution to critical pipelines and platform components


Qualifications

The Requirements
  • University or college degree in Computer Science, Information Systems, Mathematics, Engineering, Statistics, or related field of study.
  • 8+ years of experience in data engineering or platform engineering roles
  • Deep expertise in building large-scale data pipelines and platforms in cloud environments (Azure, AWS, or GCP)
  • Strong proficiency with distributed data processing (e.g., Spark)
  • Advanced SQL and strong Python programming skills
  • Experience designing data models and architectures for analytics and downstream consumption
  • Experience in data ingestion tools such as Matillion, FiveTran, Airbyte, etc. a plus
  • Strong analytical skills and experience with data modeling
  • Strong project management and organizational skills
  • Proven ability to work independently and with a team
  • Extensive hands-on experience with Databricks and Lakehouse architecture strongly preferred
  • Experience with Delta Lake, Spark optimization, and cost/performance tuning strongly preferred
  • Experience supporting advanced analytics, machine learning, or AI-driven use cases
  • Familiarity with modern data tooling (e.g., orchestration, data quality frameworks, metadata/catalog tools)
  • Prior experience setting engineering standards or leading platform modernization initiatives


Technical Competencies

Subject Matter Expertise

  • Developing expertise
    • You strengthen your depth and/or breadth of subject matter knowledge and skills across multiple areas.
    • You define the expertise required in your area based on emerging technologies, industry practices. You build the team's capability accordingly.
  • Applying expertise
    • You apply subject matter knowledge and skills across multiple areas to assess the impact of complex issues and implement long-term solutions. You foster innovation using subject matter knowledge to enhance tools, practices, and processes for the team.

Solution Development
  • Systems thinking
    • You lead and foster collaboration across H&B Data Platform Technology to develop solutions to complex issues.
    • You apply a whole systems approach to evaluating impact, and take ownership for ensuring links between structure, people and processes are made.
  • Focusing on quality
    • You instill a quality mindset to the team and ensure the appropriate methods, processes and standards are in place for teams to deliver quality solutions. You create and deliver improvement initiatives.

Technical Communication
  • Simplifying complexity
    • You develop tools, aids and/or original content to support the delivery and/or understanding of complex information. You guide others on best practice.
  • Influencing stakeholders
    • You are adaptive across a range of situations, effectively tailoring your delivery methods based on your knowledge of stakeholders to have maximum impact and influence.

This position will remain posted for a minimum of three business days from the date posted or until sufficient/appropriate candidate slate has been identified.

Compensation and Benefits

Benefits information for this position are being included in accordance with requirements of various state/local pay transparency legislation. Please note that salaries may vary for different individuals in the same role based on several factors, including but not limited to location of the role, individual competencies, education/professional certifications, qualifications/experience, performance in the role and potential for revenue generation (Producer roles only).

Compensation

The base salary compensation range being offered for this role is $180,000.00-$225,000.00 USD annually.

This role is also eligible for an annual short-term incentive bonus.

Company Benefits

WTW provides a competitive benefit package which includes the following (eligibility requirements apply):
  • Health and Welfare Benefits: Medical (including prescription coverage), Dental, Vision, Health Savings Account, Commuter Account, Health Care and Dependent Care Flexible Spending Accounts, Group Accident, Group Critical Illness, Life Insurance, AD&D, Group Legal, Identify Theft Protection, Wellbeing Program and Work/Life Resources (including Employee Assistance Program)
  • Leave Benefits: Paid Holidays, Annual Paid Time Off (includes paid state/local paid leave where required), Short-Term Disability, Long-Term Disability, Other Leaves (e.g., Bereavement, FMLA, ADA, Jury Duty, Military Leave, and Parental and Adoption Leave), Paid Time Off
  • Retirement Benefits: Contributory Pension Plan and Savings Plan (401k). All Level 38 and more senior roles may also be eligible for non-qualified Deferred Compensation and Deferred Savings Plans.


About Willis Towers Watson

Willis Towers Watson is a global insurance and risk management company that provides a range of services to clients in more than 140 countries. The company was formed in 2016 through the merger of Willis Group Holdings and Towers Watson & Co. Willis Towers Watson offers a range of insurance products, including property and casualty insurance, life insurance, and health insurance. The company also provides risk management and consulting services, including actuarial services, investment consulting, and human capital consulting. Willis Towers Watson is known for its expertise in risk management and its ability to help clients navigate complex insurance and regulatory environments.
Learn more about Willis Towers Watson
Size
46,000 employees
Market Cap
$26.2 billion
Industry
Net Income
$996 million
Founded
1828
5 Year Trend
+2.7%
Revenue
$9.3 billion
NASDAQ

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