data modeler

Compass, Inc.

Compass is looking for a motivated individual to provide operational services to the Intelligence Community (IC), the Department of War (DoW), and Federal communities. Our goal is to hire talented and passionate team members who desire to grow their skill sets, as well as the reputation of the company with our partners, clients, and stakeholders. We are looking for an individual to join an innovative team supporting mission critical/mission essential activities. Professional IT certification training opportunities and assistance are available through Compass.
 
Position Title: Systems Engineer/Data Modeler (Senior)
 
Clearance: Active TS/SCI w/CI poly
 
Location: Washington Metropolitan Area, St. Louis, MO, Huntsville, AL
 
Position Description: 
The Senior Systems Engineer/Data Modeler will apply a structured approach to design and implementation of systems and processes to capture and translate mission and customer requirements in order to transform them into capabilities, testing and validation of services. The Senior Systems Engineer will analyze and allocate requirements to systems architecture components and oversee the development, testing and validation of systems and services and will also coordinate the integration of systems and services into the enterprise architecture and oversee deployment.
 
Key Duties: 
<ul>
<li>Assist the Government in directing requirements engineering, solutions engineering, scheduling, reliability, resiliency, services development, integration, test and evaluation, maintainability, and analysis across the NSG, ASG and Federal Agencies.</li>
<li>Direct and oversee the planning, analysis/traceability of user requirements, architectures traceability, procedures, and problems to automate or improve existing systems and review cloud service capabilities, workflow, and scheduling limitations.</li>
<li>Advise the Government on proposed changes to the solutions designs based on analysis of requirements and new technology.</li>
<li>Assist the Government in the capture and translation of mission and customer requirements/needs into systems/capability requirements and solutions.</li>
<li>Support the analyses and allocation of requirements to systems architecture components and executing programs.</li>
<li>Assist the Government in performing systems integration activities.</li>
<li>Lead Analysis of Alternatives (AoAs), Course of Actions (CoAs), Trade Studies, and Engineering Assessments.</li>
<li>Assist the Government in strategic technical planning, project management, performance engineering, risk management and interface design.</li>
<li>Provide expert advice to the Government in the areas of relating vision, strategy, plans, needs, requirements, and process and capability developments.</li>
<li>Operate at the level of integrating multiple Major Systems Acquisitions across organizational, agency, department, and governmental/national boundaries.</li>
<li>Support Data Standards Officers and Sub Committees with maintaining the structure and data standards associated with Structured Observation Management (SOM) with responsibilities to ensure the ontology is to the standards (Object types, hierarchy, attributes, relationships, etc.)</li>
</ul>
Required Qualifications: 
<ul>
<li>Systems Engineering experience with the System/Software Development Lifecycle (SDLC).</li>
<li>Experience supporting Structured Observation Management (SOM). (SOM provides capabilities to create, view, manage, and store structured observations and related data via manual and automated (Computer Vision) means to maximize discoverability of data for NGA analysts and NSG customers)</li>
<li>Familiarity with Geospatial/GEOINT Ontology concepts</li>
<li>Familiarity with Imagery Analysis Standards</li>
<li>Agile and DEVCAP Methodology experience</li>
</ul>
Desired Qualifications: 
<ul>
<li>Familiarity with Analysis Core Vocabulary (ACV) / Imagery Analysis Ontology/Vocabulary.</li>
<li>Experience with Atlas SOM Repository. (Atlas SOM provides open, standards-based storage and dissemination services for Structured data and is accessible through Map of the World SOM Discovery.)</li>
<li>Experience with Analysis GIS (AGIS). (AGIS provides services and capabilities which allow for creation, maintenance, deletion, capture, storage, visualization, analysis, and discovery of geospatial data.)</li>
<li>Experience with GEOINT Object Management System (OMS). (OMS is the Authoritative source for Custody of real-world objects used to portray the Common Intelligence Picture (CIP).)</li>
<li>Experience with GEOINT “Complete Intelligence” supporting OMS contribution to Mission Partner OMS.</li>
<li>Experience with the Computer Vision discipline.</li>
</ul>
Work Level: 
<ul>
<li>Leadership</li>
<li>Management</li>
<li>Key member of team</li>
<li>Oversees or monitors task(s)</li>
<li>Provides issue resolution</li>
</ul>
Guidance Required: 
<ul>
<li>Provides expert guidance & direction (possibly as SME)</li>
<li>Directs multiple personnel/contractors through entire project life cycle</li>
</ul>
Skills and Tasks: 
<ul>
<li>Able to develop & use more complex concepts & processes</li>
<li>Performs multiple tasks at specialist level</li>
<li>Leads multiple Junior/Mid-level personnel</li>
<li>May be recognized as a SME</li>
<li>Evaluates & recommends new technology & processes based upon cost, risk, mission</li>
</ul>
Education: 
<ul>
<li>Master’s degree plus 4 years of experience,</li>
<li>Bachelor’s degree plus 6 years of experience,</li>
<li>Associate’s degree plus 8 years of experience, or</li>
<li>Minimum of 8 years of experience in a related field</li>
</ul>
Details:Target Salary Range: 
$145,500 - $214,100 WMA; $130,000 - $191,200 St. Louis, MO; $130,300 - $191,600 Huntsville, AL
 
This represents the typical salary range for this position. Salary is determined by various factors, including but not limited to, the scope and responsibilities of the position, the individual’s experience, clearance, education, knowledge, skills, and competencies, as well as geographic location and business and contract considerations.
 
EEO: Equal Opportunity Employer, including disability and protected veterans, or other characteristics protected by law.
 
Compass, Inc. (Compass) is a Small Business (SB) headquartered in Winchester, VA as a Defense and Intelligence solutions provider to the United States Government. We provide Systems Engineering and Technical Assistance (SETA), Advisory and Assistance Services (A&AS), and Systems Engineering and Integration (SE&I) to our government and business partner customers. As a premier Defense and Intelligence solution provider, we employee a diverse, agile, highly trained and extremely talented staff.

Systems Engineer/Data Modeler-Senior (#2077)

Kirkland & Ellis

<div>About Kirkland &amp; Ellis
At Kirkland &amp; Ellis, we don&rsquo;t just meet the standard for legal excellence &mdash; we set it. Our culture is built on teamwork, ingenuity and an unwavering commitment to continuous growth. We tackle the most sophisticated legal challenges with bold ideas and innovative solutions, powered by the exceptional experience and ambition of our 7,000+ people, including 4,000+ attorneys, across 24 offices worldwide. Our dedicated professionals share our lawyers&rsquo; commitment to excellence and show up each day to do meaningful work that helps drive global business, investment and innovation forward.
What You&rsquo;ll Do
Are you passionate about turning complex data into meaningful insights that drive business decisions?
As a Business Intelligence Data Modeler Engineer II, you&rsquo;ll play a critical role in shaping how data is structured, accessed, and for enterprise business intelligence. Partnering closely with business analysts, data engineers, and business stakeholders, you&rsquo;ll design and support development of data models that power reporting, analytics. This role blends technical expertise with business insight, giving you the opportunity to influence how data supports enterprise-wide decision-making.<div><ul><li> 
Data Modeling Design: Create and maintain conceptual, logical, and physical data models that support reporting and analytics across enterprise systems.</li><li>Business Partnership: Collaborate with stakeholders to translate business needs into scalable data structures and solutions.</li><li>ETL Development Support: Contribute to the design of Extract, Transform, Load (ETL) processes to ensure efficient data movement into Business Intelligence (BI) platforms and warehouses.</li><li>Data Quality &amp; Validation: Implement checks and rules to ensure data accuracy, consistency, and reliability across systems.</li><li>Performance Optimization: Continuously monitor and refine data models and database performance for efficient querying and reporting.</li><li>Documentation &amp; Governance: Maintain clear documentation of models, schemas, and data flows while adhering to data governance standards.</li><li>Data Security: Help design access controls and security measures to protect sensitive data.</li><li>Advanced Querying: Develop and utilize Structured Query Language (SQL) queries for ad hoc analysis, troubleshooting, and data validation.</li><li>Agile Collaboration: Participate in Agile workflows across analysis, development, quality assurance (QA), and user acceptance testing (UAT) phases as a data subject matter expert.</li><li>Domain Expertise: Build strong knowledge of business systems and data domains to support strategic initiatives.</li><li>Continuous Learning: Stay current with evolving technologies and industry trends in data modeling and analytics.</li></ul></div> 
What You&rsquo;ll Bring
<ul><li>Education: Bachelor&rsquo;s degree in computer science, a related field, or equivalent practical experience.</li><li>Experience: 7+ years of experience in data modeling, data warehousing, and ETL processes.</li></ul><div>
Required 
<ul><li>Data Modeling Expertise: Strong Hands-on experience of dimensional modeling, fact tables, star/snowflake schemas, slowly changing dimensions (SCDs), and tools like Erwin.</li><li>Technical Skills: Expertise with SQL (including Transact-SQL) and deep experience with relational database systems such as Microsoft SQL Server.</li><li>Data Engineering Knowledge: Experience with data pipelines using ETL or Extract, Load, Transform (ELT) techniques and tools such as Azure Data Factory (ADF) to load data into analytics data marts, data warehouses and data lakes. Experience with analytics data platforms such as Azure Synapse Analytics, OneLake or Microsoft Fabric.</li><li>Analytics &amp; BI Tools: Familiarity with Business Intelligence (BI) platforms such as Microsoft Power BI and Qlik Sense, and experience supporting enterprise reporting.</li><li>Programming &amp; Scripting: Exposure to Python, PySpark, Databricks, or programming languages like Java or C# is a plus.</li><li>Data Governance &amp; Security: Understanding of data governance principles, access controls, and data protection best practices.</li><li>Business Acumen: Experience working with operational analytics domains such as Human Resources (HR), Finance, or Risk Management; professional services industry experience is a plus.</li><li>Collaboration &amp; Communication: Strong problem-solving, interpersonal, and communication skills with the ability to work cross-functionally.</li><li>Work Style: Highly organized, self-motivated, and able to thrive in a fast-paced, Agile project environment managing multiple priorities.</li></ul></div>
If you&rsquo;re ready to help shape how data drives smarter decisions and deliver impactful insights as a Business Intelligence Data Modeler Engineer II, we&rsquo;d love to hear from you! 
Compensation
The base salary range below represents the low and high end of the salary range for this position in Chicago. This range may differ based on your geographic location and cost of living considerations. At Kirkland &amp; Ellis, we consider compensation more than just a base salary. We offer an exceptional range of flexible benefits including comprehensive healthcare, paid time off, and retirement. We also offer personal support and tailored learning and development opportunities all designed to help you realize your full potential both in life and at work.
Compensation Range:
Chicago: $116,000 - $144,000
How to Apply
Thank you for your interest in Kirkland &amp; Ellis LLP. To complete an application and submit your resume, please click &quot;Apply Now.&quot;
Don't meet every job requirement? That's okay! If you're excited about this role but your experience doesn't perfectly fit every qualification, we encourage you to apply anyway. You may be just the right person for this role or others at Kirkland.
Equal Employment Opportunity
All employment decisions, including the recruiting, hiring, placement, training availability, promotion, compensation, evaluation, disciplinary actions, and termination of employment (if necessary) are made without regard to the employee&rsquo;s race, color, creed, religion, sex, pregnancy or childbirth, personal appearance, family responsibilities, sexual orientation or preference, gender identity, political affiliation, source of income, place of residence, national or ethnic origin, ancestry, age, marital status, military veteran status, unfavorable discharge from military service, physical or mental disability, or on any other basis prohibited by applicable law. #LI-Hybrid #LI-CF1</div>

Business Intelligence Data Modeler Engineer II

Valleysoft

<div>Valleysoft is an IT services and consulting company focused on helping organizations solve complex technology challenges through enterprise software, process improvement, and digital transformation. We work with clients to build practical, scalable solutions that strengthen operations, improve decision-making, and support long-term business change.
As a Data Warehouse (DWH) Modeler focused on banking, you will play a key role in shaping the data foundations that support critical reporting, analytics, and advanced data use cases. This role is centered on translating complex financial processes and regulatory needs into robust, scalable data models that enable reliable access to trusted information across the enterprise.
Responsibilities<ul><li>
Multi-Paradigm Modeling: Design a hybrid architecture utilizing Data Vault 2.0 for core integration, while maintaining Dimensional Modeling for presentation.</li><li>
Multi-Modal Data Handling: Structured: Master traditional 3NF and Star Schemas for core banking systems (Oracle/SQL Server).</li><li>
Semi-Structured: Design schemas that efficiently handle JSON, XML, and</li><li>
Parquet formats, ensuring &quot;schema-on-read&quot; capabilities and efficient flattening for analytical consumption.</li><li>
Unstructured: Architect metadata models and &quot;Data Catalog&quot; strategies to index and relate unstructured assets (PDFs, images, voice) to structured customer profiles.</li><li>
Design and maintain a sophisticated data architecture using a &quot;right tool for the job&quot; approach&mdash;leveraging relational DBMS Modeling, Data Vault 2.0 (Hubs, Links, and Satellites) for our scalable integration layer and Dimensional Modeling (Star/Snowflake) for our presentation layers.</li><li>
Advanced History &amp; Temporal Integrity: Architect robust History Loading strategies using Bi-temporal Modeling and Slowly Changing Dimensions (Types 2, 4, 6) &quot;As-Of&quot; auditability.</li><li>
Banking Domain Mapping: Translate complex banking processes into models that support both traditional reporting and advanced AI/ML use cases.</li><li>
Performance Engineering: Optimize storage and retrieval strategies for massive datasets, balancing the trade-os between relational storage and object storage (Data Lake).</li><li>
Technical Toolkit We require a specialist who is fluent in the language of data architecture and historical persistence:</li><li>
Category Must-Have Expertise</li><li>
Modeling Techniques</li><li>
Data Vault 2.0, Star/Snowflake, 3NF, Bi-temporal Modeling</li><li>
History Handling</li><li>
SCD (Types 1-6), Point-in-Time (PIT) &amp; Bridge Tables,</li><li>
Snapshotting</li><li>
Modeling Tools Erwin</li><li>
Databases</li><li>
Advanced knowledge of Oracle Database and Microsoft SQL</li><li>
Server</li><li>
Integration</li><li>
Concepts</li><li>
CDC (Change Data Capture), Eective Dating, Metadata-driven</li><li>
ETL</li></ul> 

Requirements 
<ul><li>
Degree in Information Systems.</li><li>
5+ years of experience designing enterprise data warehouse models in banking environments.</li><li>
The Architect&rsquo;s Mind: You don't just model for today; you build for a decade of history.
</li><li>You understand that in banking, losing history is equivalent to losing money.</li><li>
Temporal Specialist: You are deeply familiar with the challenges of loading historical back-feeds and managing late-arriving data without compromising the timeline.</li><li>
Detail Obsessed: You bring a high level of precision to every entity.
</li><li>You understand that a missing historical record is not just a technical error&mdash;it's a compliance risk.</li><li>
Eligible to work in Egypt.</li></ul></div>

Data Warehouse (DWH) Modeler (Banking)

Jack Motors

Revit Modeler / Structural BIM Modeler (Precast Projects) &ndash; Immediate HiringLocation: Dubai, UAE Job Type: Full-Time Availability: Immediate Joining PreferredJob SummaryWe are looking for an experienced Revit Modeler / Structural BIM Modeler with 6+ years of experience in structural precast concrete projects. The ideal candidate should have strong expertise in Revit, precast modeling, reinforcement detailing, shop drawings, fabrication drawings, and multidisciplinary BIM coordination.Key Responsibilities<ul><li>Develop 3D structural precast models using Autodesk Revit.</li><li>Model precast elements such as walls, beams, columns, slabs, stairs, and balconies.</li><li>Prepare Shop, Fabrication, GA, Erection, Reinforcement Drawings, and BBS.</li><li>Model reinforcement and embedded plates, inserts, and lifting components.</li><li>Perform clash detection and multidisciplinary coordination.</li><li>Ensure compliance with BIM standards, QA/QC, and project requirements.</li></ul>Requirements<ul><li>6+ years of Structural Precast BIM Modeling experience.</li><li>Strong experience in Autodesk Revit Structure.</li><li>Knowledge of precast detailing, reinforcement modeling, shop drawings, fabrication drawings, erection drawings, and BBS.</li><li>Experience with Navisworks, AutoCAD, and Microsoft Office.</li><li>Bachelor's Degree in Civil Engineering or equivalent.</li></ul>Preferred<ul><li>Experience with ACC/BIM 360 and basic Dynamo.</li><li>Experience on industrial or large-scale precast projects.</li></ul>Benefits<ul><li>Competitive salary.</li><li>Visa and medical insurance.</li><li>Career growth and technical training.</li><li>Professional and collaborative work environment.</li></ul>Work Location: In person

Structural BIM Engineer

Automobile Club of Missouri

The Lead Actuarial Predictive Modeler creates predictive models with a primary focus on pricing segmentation and lifetime value. This role actively designs, develops, and implements actuarial pricing models and predictive segmentation strategies, applying established actuarial theory alongside advanced statistical and machine learning techniques. The Lead Actuarial Predictive Modeler works directly with loss cost models, including developing new rating features as well as acquisition, retention and conversion models to support accurate, competitive, and financially sound pricing decisions. This role drives complex, end-to-end pricing initiatives—from exploratory analysis and model development through governance, implementation, and monitoring. The Lead Actuarial Predictive Modeler partners closely with Actuarial, Product, Underwriting, and IT teams to translate business objectives into actuarially defensible pricing solutions, ensure regulatory compliance, and support timely rate filings. This position is deeply involved in execution, managing accelerated timelines, maintaining pricing discipline, and leading the delivery of high-quality results.
 
Job Duties
 
Personally build predictive models with focus on the most difficult and complex projects. Ensure solutions built meet the strategic needs of our organization as well as any regulatory or internal parameters.
 
Lead design of models best-suited for specific tasks and ensure analytic efforts are executed correctly. Create execution plans and assist predictive modelers in building robust and predictive models.
 
Identify and propose new technologies and tools that could benefit the Predictive Modeling and Analytics business unit.
 
Lead communication of project results/challenges to business partners in ways they can understand. Proactive communication of delays to planned efforts.
 
Mentor team members to assist with development, training, and career pathing
 
Ensure all projects have proper documentation taking into account potential regulatory, legal, or business concerns.
 
Able to act autonomously. The Senior Modeler must have an advanced knowledge of ratemaking, actuarial methods and methodologies as well as predictive modeling and data science methods and how those methods can be properly applied across different projects.
 
Qualifications
 
Masters Equivalent combination of education and experience Required
 
7-9 years Experience building and deploying predictive models in an insurance environment required
 
7-9 years Actuarial Experience preferred Preferred
 
Master's degree in Actuarial, Statistical, or Data Science field (or equivalent combination of education and experience) required
 
Demonstrated success implementing predictive modeling solutions for insurance use cases
 
Strong SQL skills
 
Strong Python skills preferred with other modeling tools and softwares a plus
 
Ability to understand the big picture and drive the initiatives the lead to completion of the overall big picture
 
Ability to work in cross-functional/departmental groups and keep multiple moving pieces straight
 
Ability to communicate complex topics clearly to business leaders
 
Mentor and assist predictive modelers in their respective functions and responsibilities.
 
Fellow of Casualty Actuarial Society - Casualty Actuarial Society Preferred
 
Associate of Casualty Actuarial Society - Casualty Actuarial Society Preferred
 
#LI-DF1
 
The starting pay range for this position is: 
$145,900.00 - $194,600.00
 Additionally, for full time positions, you will be eligible to participate in our incentive program based upon the achievement of organization, team and personal performance.
 .
 
Remarkable benefits: 
<ul>
<li>Health coverage for medical, dental, vision</li>
<li>401(K) saving plans with company match AND Pension</li>
<li>Tuition assistance</li>
<li>Floating holidays and PTO for community volunteer programs</li>
<li>Paid parental leave</li>
<li>Wellness programs</li>
<li>Employee discounts (membership, insurance,</li>
</ul>
travel, entertainment, services and more!)
 
Auto Club Enterprises is the largest club within the national AAA federation. We have nearly 17,000 employees in 24 states helping more than 18 million members. The strength of our organization is our employees. Bringing together and supporting different cultures, backgrounds, personalities, and strengths creates a team capable of delivering legendary, lifetime service to our members. When we embrace our diversity – we win. All of Us! With our national brand recognition, long-standing reputation since 1900, and constantly growing membership, we are seeking career-minded, service-driven professionals to join our team.
 
“Through dedicated employees we proudly deliver legendary service and beneficial products that provide members peace of mind and value.”
 
AAA is an Equal Opportunity Employer
 
Our organization participates in E-Verify
 
The Automobile Club of Southern California will consider for employment all qualified applicants, including those with criminal histories, in a manner consistent with the requirements of applicable federal, state, and local laws, including the City of Los Angeles’ Fair Chance Initiative for Hiring Ordinance (FCIHO), the Unincorporated Los Angeles County (ULAC) regulation, and the California Fair Chance Act (CFCA).

Lead Actuarial Predictive Modeler

Liberty Mutual Insurance

<div>Description
<ul><li>Consult on designing and developing programs and tools to support ingestion, curation, and provisioning of highly complex enterprise data to achieve analytics, reporting, and data science.
</li><li>Involved in and contribute to development and enhancement of solutions for gaps.
</li><li>Responsible for designing and building highly complex data models and data architecture that improve accessibility, efficiency, governance, and data quality that directly impact business results.
</li><li>Understand and develop business process improvements that address the most complex technology gaps within a single business process.
</li><li>Develop technology enabled recommendations to address gaps within a single business process.
</li><li>Document existing processes, organizational structures, architectures, and external systems.
</li><li>Consult on the appropriate tools to prepare deliverables.
</li><li>Participate in the development of tools and methodologies and adapt them to the organization environment.
</li><li>Manage peer to peer relationships, with colleagues, vendors and external contractors, including offshore functions.
</li><li>Assist with development and execution of cutover plans for simple processes.
</li><li>Assist in post-implementation support, resolving issues and raising defects to appropriate level.
</li><li>Execute transition plan for area of responsibility to the appropriate resource for each phase of the project or initiative.
</li><li>Transition the knowledge sharing and transfers ownership to other resources or teams for key deliverables and business processes.
</li><li>Domestic travel required up to 10%.
</li><li>Telecommuting permitted up to 100%.</li></ul>
Qualifications
Employer will accept a Bachelor&rsquo;s degree in Computer Science, Engineering [any] or related field and five (5) years of experience in the job offered or in a Solutions Engineer, Data-related occupation.
 
Position requires demonstrable experience in the following:<ul><li><ul><li>
Design and implement data solutions of high complexity including data solutions for applications with a Mean Time To Recovery of 4 hours or less.
</li><li>Work closely with application team to ensure data needs meet business needs and align with architecture standards for support and security.
</li><li>Create applications with a high degree of observability utilizing Observability tools including Datadog.
</li><li>Guide senior level engineers on design practices and work closely with architects to influence strategic decisions.
</li><li>Drive the identification of key enablers and maintain a 12-month roadmap for aligned software products to meet business needs.
</li><li>Proficiency with Relational Databases and NoSQL databases including Oracle.
</li><li>Proficiency with cloud-based providers and containerized solutions including AWS.</li></ul></li><li>
Experience may be gained during graduate program.
</li><li>Will accept any suitable combination of education, training, and/or experience.
</li><li>Multiple Positions Available.</li></ul>
REFER TO: To apply, please visit https://jobs.libertymutualgroup.com/, select &ldquo;Search Jobs,&rdquo; enter job requisition #2026-76935 in the &ldquo;Job ID or Keywords&rdquo; field, and submit resume. Alternatively, you may apply by submitting a resume via e-mail to RecruitLM@LibertyMutual.com. Reference requisition number in subject of e-mail.
About Us
Pay Philosophy: The typical starting salary range for this role is determined by a number of factors including skills, experience, education, certifications and location. The full salary range for this role reflects the competitive labor market value for all employees in these positions across the national market and provides an opportunity to progress as employees grow and develop within the role. Some roles at Liberty Mutual have a corresponding compensation plan which may include commission and/or bonus earnings at rates that vary based on multiple factors set forth in the compensation plan for the role. 
At Liberty Mutual, our goal is to create a workplace where everyone feels valued, supported, and can thrive. We build an environment that welcomes a wide range of perspectives and experiences, with inclusion embedded in every aspect of our culture and reflected in everyday interactions. This comes to life through comprehensive benefits, workplace flexibility, professional development opportunities, and a host of opportunities provided through our Employee Resource Groups. Each employee plays a role in creating our inclusive culture, which supports every individual to do their best work. Together, we cultivate a community where everyone can make a meaningful impact for our business, our customers, and the communities we serve. 
We value your hard work, integrity and commitment to make things better, and we put people first by offering you benefits that support your life and well-being. To learn more about our benefit offerings please visit: https://www.libertymutualgroup.com/about-lm/careers/benefits 
 
Liberty Mutual is an equal opportunity employer. We will not tolerate discrimination on the basis of race, color, national origin, sex, sexual orientation, gender identity, religion, age, disability, veteran's status, pregnancy, genetic information or on any basis prohibited by federal, state or local law. 
 
Fair Chance Notices<ul><li>
California</li><li>
Los Angeles Incorporated</li><li>
Los Angeles Unincorporated</li><li>
Philadelphia</li><li>
San Francisco</li></ul></div>

Solutions Engineer, Data

visuna

<div>Job Reference: 251616<div> 
</div><div><div><div>Upstream
</div></div><div><div>Start Date: 01/09/2026</div><div>
Applications close on: 14/08/2026</div><div>
Contract Type: Contract</div><div>
Country: Saudi Arabia</div><div>
Discipline: Water</div><div>
Job Contact: sonja.fielding@visuna.com</div>
</div></div><div></div><div><div><div><div><div><div>Our Client is seeking a Senior Groundwater Modeler for a project in Saudi Arabia.

This is to lead the numerical groundwater modeling and Master Plan works of a major urban rising-groundwater program. The role owns the integrated modeling system in which a groundwater model is coupled to the dewatering, water-supply, wastewater and overland-flow systems that drive rising shallow water tables, delivering the calibrated model, reliability analysis, the 2050 Master Plan and the governance-controlled decision-support tool handed over to the client. The modeler reports to the Program Team Leader and interfaces with the SLB-led program team responsible for monitoring, database/GIS, tender packages and water-balance studies.

Reporting &amp; Deliverables

The Senior Groundwater Modeler reports to the Program Team Leader and is accountable for the Model Assessment Report, conceptual and preliminary models, twelve calibrated child models, sensitivity and validation reports, calibration and scenario reports, the reliability report, the 2050 Master Plan and action plan, the decision-support emulator, and the Task Completion Report &mdash; each delivered per the project milestone schedule and to the client&rsquo;s acceptance.

Core Responsibilities

Model Assessment, Conceptualization &amp; Preliminary Models
<ul>
<li>Assess and select the model suite (water-balance, groundwater, 1D dewatering/wastewater/water-supply, 2D-overland, integrated) and document a Model Assessment Report for client approval.</li>
<li>Consolidate the Riyadh hydrogeological conceptual model (regional hydrostratigraphy, gaining/losing wadi behavior, fracture corridors, urban recharge/drainage) defining layout, model area and input parameters</li>
<li>Select and secure approval of open-source modeling software provided to the client free of license cost; build preliminary (uncalibrated) models to expose data gaps and inform the survey plan.</li>
</ul>
Neighborhood Child Models &amp; Recharge
<ul>
<li>Develop twelve high-resolution child models &mdash; one per water-balance area &mdash; nested in the regional parent to quantify urban recharge and produce a defensible city-wide recharge parameterization.</li>
<li>Calibrate child models against groundwater levels, drainage flows and water-balance consistency, focusing on leakage fractions, hydraulic conductivity and drain conductance.</li>
</ul>
Sensitivity, Detailed Construction &amp; Validation
<ul>
<li>Run sensitivity analysis on all input parameters (local Jacobian-based and global ensemble screening) to rank controls and prioritize data acquisition.</li>
<li>Construct the detailed integrated models and validate them against existing observations and known system behavior prior to calibration.</li>
</ul>
Integrated Dewatering, Network &amp; Overland-Flow Modeling
<ul>
<li>Couple the groundwater core to 1D dewatering pipes/canals (CLN / DRN / RIV) and represent water/storm/sewer network leakage so groundwater response to each network is explicitly defined.</li>
<li>Route rainfall-runoff via 2D-overland or lumped elements for pluvial-flood and early-warning assessment.</li>
</ul>
Measures, Mega-Structures, Calibration &amp; Reliability
<ul>
<li>Assess individual dewatering measures and combine effective ones into approved scenarios, incorporating climate-change impacts.</li>
<li>Build dedicated sub-models for the Riyadh Metro (~50 stations to ~40 m) and other deep structures, capturing barrier/drain effects and construction dewatering.</li>
<li>Calibrate detailed models after the first monitoring year using PEST++ regularized inversion; document every calibration step and justify any unmet criteria.</li>
<li>Run the preferred scenario and deliver a reliability (uncertainty) analysis reporting P5/P50/P95 predictive bounds.</li>
</ul>
Master Plan, Emulator, Handover &amp; Training
<ul>
<li>Produce the 2050 Master Plan: five-year-interval level predictions, critical-area identification, a five-year rolling mitigation project list, and an adaptive management tool.</li>
<li>Deliver the governance-controlled decision-support emulator (stress-only interface on the calibrated model with archived, traceable runs).</li>
<li>Install and test all models and software at the client&rsquo;s head office, verify reproducibility, and train up to five client staff; assess the real-time early-warning system approach.</li>
</ul>
Technical Environment

The delivered stack is open-source and free of license cost:
<ul>
<li>Groundwater core: MODFLOW-USG (unstructured grid, Newton solver, CLN package).</li>
<li>Automation &amp; coupling: Python / FloPy.</li>
<li>Calibration &amp; uncertainty: PEST++ (IES / ENSI ensemble methods).</li>
<li>Surface/network: 1D/2D representation within MODFLOW-USG (CLN/DRN/RIV) or an approved coupled code.</li>
<li>Deliverable formats: PDF plus editable Word/Excel; GIS/CAD (ArcGIS/AutoCAD, WGS 1984); Primavera schedules.</li>
</ul>
Key Competencies

Technical depth &ndash; Independent construction, calibration and validation of regional + nested urban groundwater models in complex carbonate/fractured settings.

Uncertainty &ndash; Fluency in ensemble methods and risk-informed reporting of predictive bounds for decision-making.

Integration &ndash; Ability to couple groundwater with piped-network and overland-flow systems rather than treating recharge as assumed.

Tooling &ndash; Strong Python/FloPy scripting for reproducible, automated, auditable workflows.

Delivery &ndash; Review-ready documentation, adherence to the project sequence, and on time milestone delivery.

Communication &ndash; Client engagement, workshop support, and effective training of non-specialist staff.

Minimum Qualifications &amp; Experience

A minimum of fifteen (15) years of professional experience in regional and nested numerical groundwater modeling is required. Candidates below this threshold will not be considered.
<ul>
<li>15+ years delivering regional and nested (parent&ndash;child) groundwater models for government, urban-water, mining or infrastructure projects.</li>
<li>Postgraduate degree (MSc or PhD preferred) in hydrogeology, hydrology, water resources or a closely related discipline.</li>
<li>Demonstrated expertise in MODFLOW-USG (or an approved equivalent): unstructured-grid support, Newton solver, and the Connected Linear Network (CLN) package for 1D pipe/canal coupling.</li>
<li>Proven PEST++ highly-parameterized ensemble calibration and uncertainty analysis (IES / ENSI); reporting predictive uncertainty as P5 / P50 / P95 bounds.</li>
<li>Hands-on Python / FloPy automation for model construction, coupling, batch execution and post-processing across multiple child models.</li>
<li>Direct experience with carbonate, fractured and urban aquifer systems and representing infrastructure leakage and drainage as explicit model stresses.</li>
<li>Experience building governance-controlled emulators / decision-support tools for non specialist users, with protected calibrated parameters and full run auditability.</li>
<li>Track record of client-facing delivery, review-ready model documentation, and training of client staff.</li>
</ul>
<h3 class="jobSectionHeader">Benefit of Working with Visuna?
</h3><ul><li>A dedicated member of the team responsible for your placements and welfare</li>
<li>Some of the best day rates in the industry</li>
<li>FREE worldwide insurance and Medevac cover whist on a Placement</li>
<li>24/7 access to our specialist support team</li>
<li>Assistance and advice on a range of business topics</li>

<li>FREE access to our Competency Scheme</li>
<li>Increased exposure to potential clients and more placement opportunities</li></ul></div></div></div></div></div></div></div>

Senior Groundwater Modeler

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