Senior Software Engineer - Data & Distributed Systems

The Trade DeskBellevue

On-site Full-time

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Experience Level

Senior

Qualifications

To be successful in this role, you should have:At least 5 years of experience in software development, with a focus on data systems. Proficiency in programming languages such as Java, Python, or Scala. Strong understanding of distributed systems and cloud technologies. Experience with data processing frameworks like Apache Hadoop or Apache Spark. Excellent problem-solving skills and the ability to work in a fast-paced environment. A bachelor's degree in Computer Science or a related field is preferred.

About the job

Join our innovative team at The Trade Desk as a Senior Software Engineer specializing in Data & Distributed Systems. In this pivotal role, you will leverage your expertise to design, develop, and optimize our data processing architecture, ensuring high availability and scalability. Collaborate with cross-functional teams to implement cutting-edge solutions that enhance our product offerings and improve user experience.

About The Trade Desk

The Trade Desk is a leading technology company that empowers buyers of advertising through a self-service platform. We are committed to building a diverse and inclusive workplace where creativity and innovation thrive. Join us in shaping the future of advertising technology!

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Senior Data Scientist

Nexxen

Full-time|$160K/yr - $160K/yr|Hybrid|Bellevue

Who is Nexxen? Nexxen is at the forefront of innovative advertising solutions, seamlessly integrating data to empower advertisers, agencies, publishers, and broadcasters globally. Our technology ecosystem encompasses both demand-side (DSP) and supply-side platforms (SSP), with the Nexxen Data Platform serving as the foundation of our operations.Why join Nexx…

Dec 24, 2025

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Senior Data Scientist at Nexxen | Bellevue

nexxen

Full-time|$160K/yr - $160K/yr|On-site|Bellevue

Who is Nexxen? At Nexxen, we redefine advertising through a data-driven approach. Our innovative solutions empower advertisers, agencies, publishers, and broadcasters globally to leverage data and advanced TV technologies effectively. Central to our offerings is a robust technology stack that includes both a demand-side platform (DSP) and a supply-side platform (SSP), all anchored by the Nexxen Data Platform.Why join Nexxen? Become part of a dynamic team that is revolutionizing the advertising landscape with our creative and flexible solutions. Our employees embody the Nexxen Way, built on the foundational pillars of Customer Centricity, a Curious Mindset, and Collaboration without Ego.Important Notice from Nexxen: Your Safety MattersWe prioritize the safety and well-being of our employees. As part of our commitment, we urge job seekers to be cautious of online scams and fraudulent postings. Please note that Nexxen will never request any form of payment as a condition of employment. If you encounter suspicious messages or job postings claiming to be from Nexxen, please verify their legitimacy by contacting us at infosec@nexxen.com. Your trust is vital to us. Stay safe and informed.What You’ll DoAs a Senior Data Scientist, you will spearhead the development and implementation of groundbreaking data solutions. Collaborating with engineers and product experts, you’ll tackle complex challenges, transforming them into elegant, actionable insights. Your expertise in data science, machine learning, statistical modeling, and deep learning will guide your problem-solving approach. Proficiency in programming languages such as Python, SQL, and Spark is essential.Your Daily ResponsibilitiesDesign and implement scalable data science solutions and machine learning pipelines.Optimize existing models and develop new methodologies to enhance data quality.Collaborate with cross-functional teams to drive projects to completion.

Dec 24, 2025

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Senior Data Scientist - Channel Growth

The Trade Desk

Full-time|$124.9K/yr - $228.9K/yr|On-site|Bellevue; San Jose

At The Trade Desk (TTD), our data scientists are integral to the entire product lifecycle, collaborating closely with engineering teams from the initial ideation phase through to production and ongoing monitoring. As end-to-end owners of our projects, you will engage in all facets of designing, researching, building, and delivering innovative data-driven solutions for our clients and traders.We are in search of a Senior Data Scientist who will spearhead the design, development, and scaling of data solutions that will enhance our forecasting, pacing, and recommendation systems across emerging channels. You will create advanced machine learning and deep learning models that significantly impact planning, allocation, and performance within our platform.Your key responsibilities will include:Developing forecasting models using statistical methods, machine learning, and deep learning techniques.Building and optimizing pacing algorithms that effectively balance immediate performance with long-term goals and constraints.Creating custom solutions tailored to our unique environment, where standard models may not provide effective scalability.Collaborating with product teams to align business objectives with actionable data science initiatives.Working hand-in-hand with engineering teams to transition models from prototype to production, ensuring seamless integration with our products.Defining success metrics, conducting offline evaluations, and running online experiments (A/B testing) to assess business impact.Clearly communicating technical results and trade-offs to both technical and non-technical stakeholders.

Feb 3, 2026

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Senior Data Scientist in Forecasting at CoreWeave | Multiple Locations

CoreWeave

Full-time|On-site|New York, NY / Sunnyvale, CA / Bellevue, WA

CoreWeave is hiring a Senior Data Scientist focused on forecasting for the Integrated Planning department. This role centers on applying advanced analytics to improve planning and support strategic decisions. Role overview The Senior Data Scientist will work with large datasets and statistical models to generate accurate forecasts. The position involves collaborating with teams to interpret data and provide insights that shape organizational planning. Key responsibilities Develop and refine forecasting models using advanced analytical methods Analyze data to inform planning and guide decision-making Work closely with other departments to integrate insights into broader business strategies Locations This position is available in New York, NY, Sunnyvale, CA, or Bellevue, WA.

Apr 29, 2026

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Principal Data Scientist, Pricing Strategy

Okta, Inc.

Full-time|$214K/yr - $295K/yr|On-site|Bellevue, Washington; San Francisco, California

Okta secures digital identity for both AI and human users, building infrastructure that helps organizations adapt to new challenges. The company focuses on solving complex problems that have a real impact for its customers. The Pricing Strategy team partners with Product, Finance, Sales, and Operations to define how Okta packages, prices, and monetizes its products worldwide. This group blends strategy with analytics, using market trends and customer data to develop recommendations that influence executive decisions and field execution. Role overview The Principal Data Scientist, Pricing Strategy, reports to the Head of Pricing Strategy. This position leads analytics projects that shape pricing and packaging strategies across Okta’s product portfolio. The role combines quantitative analysis with strategic thinking, developing measurement methods, building and deploying models, and running test-and-learn programs to guide monetization. Collaboration with senior leaders in Product and Go-to-Market teams is essential, turning open-ended questions into actionable insights and scalable plans. What you will do Strategic Pricing Influence: Work with Product, Go-to-Market, and Finance leaders to shape pricing, packaging, and discount strategies using data-driven insights. Advanced Analytics and Modeling: Build and apply models and analytical frameworks to forecast pricing effects, predict customer behavior, and estimate revenue outcomes across regions and segments. Experimentation and Pilots: Design and evaluate pilots and test-and-learn initiatives for new pricing strategies, including defining success metrics and evaluation methods. Deep-Dive Insight Generation: Analyze large, complex datasets to uncover drivers of purchasing, discounting, retention, and monetization performance. Metrics and Dashboards: Develop dashboards and reports that clearly communicate findings to stakeholders. Location This position is based in Bellevue, Washington or San Francisco, California.

Apr 23, 2026

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Lead Staff Data Scientist - Inventory & Marketplace Quality

The Trade Desk

Full-time|$137.3K/yr - $251.8K/yr|On-site|Bellevue; Denver; San Jose

Join The Trade Desk as a Lead Staff Data Scientist on the Marketplace Quality Engineering (MQE) team. This dynamic, cross-functional group ensures the integrity, performance, and reliability of our inventory marketplace. We develop robust systems to identify and mitigate fraud, enhance inventory quality, and optimize marketplace dynamics, ultimately benefiting advertisers, publishers, and consumers.In this pivotal role, you will provide both technical and strategic direction for MQE by establishing the data science roadmap and execution strategies. You will oversee the complete development of advanced modeling, analytical, and measurement systems while collaborating closely with engineering, product, and business leaders to convert complex requirements into trustworthy and scalable solutions.

Feb 3, 2026

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Senior Data Analyst at Annik | Bellevue

Annik Inc.

Full-time|On-site|Bellevue

Key Responsibilities:· Troubleshoot intricate data-related challenges escalated from Tier 1 support.· Resolve data inconsistencies and deliver actionable business intelligence insights.· Grasp data lineage, quality, and the interconnections between datasets.· Oversee ETL (Extract, Transform, Load) processes and address any failures promptly.· Provide development support for platforms and applications as directed by the assigned manager.· Create and maintain knowledge base articles for Tier 1 and Tier 2 support teams.· Allocate 20-25% of your time to development initiatives, including the automation of operational tasks, data quality assessments, application feature enhancements, tabular model development, bug resolution, and reporting.· Engage in data engineering tasks as required.· Exhibit flexibility to assist with production issues outside of regular hours.

Sep 28, 2018

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Senior Data Analyst at Annik | Bellevue

Annik Inc.

Full-time|On-site|Bellevue

Diagnose and resolve intricate data-related challenges escalated from Tier 1 support.Analyze and rectify data discrepancies while delivering actionable business intelligence insights.Comprehend data lineage, quality, and interrelationships to ensure accurate reporting.Oversee data extract, transform, and load (ETL) operations, responding promptly to any job failures.Provide development support for various platforms and applications as directed by the assigned manager.Create and maintain knowledge base articles for Tier 1 and Tier 2 teams.Allocate 20-25% of time towards development initiatives, including automation of operational tasks, data quality verification, application feature enhancement, tabular model creation, bug resolutions, and reporting.Engage in data engineering tasks as necessary.Exhibit flexibility to assist with production issues outside of standard hours.

Sep 21, 2018

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Senior Manager, Data Infrastructure Services

CoreWeave

Full-time|On-site| Sunnyvale, CA / Bellevue, WA

CoreWeave is looking for a Senior Manager, Data Infrastructure Services to guide the development and operation of its data systems. This position is based in Sunnyvale, CA or Bellevue, WA. Role overview This role centers on leading data initiatives and shaping the company’s data infrastructure. The Senior Manager will focus on building and maintaining systems that support data accessibility and reliability across the organization. What you will do Oversee the design, implementation, and maintenance of CoreWeave’s data infrastructure Ensure data systems align with organizational needs and growth Drive improvements in data accessibility and usability Who thrives here This position suits a strategic thinker who enjoys building and enhancing data ecosystems. Leadership skills and a drive to support innovative data projects are important for success in this role.

Apr 30, 2026

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Principal Applied Scientist - AI

UiPath

Full-time|On-site|Bellevue

Join UiPath as a Principal Applied Scientist - AIAt UiPath, we are champions of automation, revolutionizing the way businesses operate through innovative enterprise software solutions. Our team's passion for curiosity, generosity, and authenticity drives us forward in this dynamic environment.Are you ready to make a significant impact?As a Principal Applied Scientist at UiPath, you will spearhead advancements in machine learning, laying the groundwork for groundbreaking product developments. This pivotal leadership role melds applied research, engineering, and strategic insight, allowing you to shape the trajectory of our cutting-edge ML projects.We are on the lookout for a scientist who has demonstrated success in leading influential research and implementing pioneering machine learning systems at scale. A deep curiosity about AI and ML, a commitment to innovation, and a passion for addressing real-world automation challenges are essential for this role.The ideal candidate should possess extensive experience in designing and executing sophisticated experiments, developing high-performance ML systems, and mentoring teams. We highly value collaboration, humility, technical excellence, and a proactive approach to problem-solving.Background:This position is within the UiPath advanced machine learning research group, focused on creating large multi-modal models that mimic human software interaction. Our goal is to expand the horizons of AI in the quest for effective general intelligence for enterprise automation.Your Responsibilities:Direct the design and implementation of state-of-the-art machine learning and deep learning systems for practical applications.Drive innovation in NLP, NLU, NLG, computer vision, and multi-modal learning to achieve significant advancements in software automation.Define and guide the strategy for scalable ML infrastructure and the transition from research to production.Design experiments, perform comprehensive benchmarking, and analyze large datasets to assess and enhance model performance.Collaborate extensively with engineering, product, and research teams to effectively integrate ML solutions into UiPath offerings.

Oct 31, 2025

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Senior Software Engineer - Data & Distributed Systems

The Trade Desk

Full-time|On-site|Bellevue

Join our innovative team at The Trade Desk as a Senior Software Engineer specializing in Data & Distributed Systems. In this pivotal role, you will leverage your expertise to design, develop, and optimize our data processing architecture, ensuring high availability and scalability. Collaborate with cross-functional teams to implement cutting-edge solutions that enhance our product offerings and improve user experience.

Mar 2, 2026

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Senior Software Engineer - Data Infrastructure Services

CoreWeave

Full-time|On-site|Sunnyvale, CA / Bellevue, WA

As a Senior Software Engineer specializing in Data Infrastructure Services at CoreWeave, you will play a pivotal role in designing and implementing scalable data solutions that power our innovative services. You will collaborate with cross-functional teams to enhance our data architecture and improve data accessibility for various applications.

Apr 8, 2026

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Principal Applied Scientist at UiPath | Bellevue

UiPath

Full-time|On-site|Bellevue

Join UiPath: Pioneers in AutomationAt UiPath, we harness the transformative potential of automation to redefine the way the world operates. Our commitment lies in developing industry-leading enterprise software that unleashes this potential.We seek individuals who are inquisitive, driven, collaborative, and authentic—those who thrive in a dynamic, rapidly evolving environment and are passionate about our mission.Are you one of them?As a Principal Applied Scientist, you will spearhead the design, research, and implementation of cutting-edge Machine Learning systems, seamlessly integrating deep research with large-scale deployment to shape the future of enterprise automation.Key Responsibilities• Develop and drive the technical vision for agent-based automation, focusing on how autonomous agents utilize LLMs, reinforcement learning, simulation environments, tool use, and multi-step reasoning to enhance the UiPath platform.• Design, prototype, and implement advanced ML and AI systems, including LLM fine-tuning, multimodal pipelines, computer-use modeling, agent orchestration frameworks, and decision-making systems.• Oversee the development and execution of ML infrastructure and services for model training, fine-tuning, large-scale inference, model serving, monitoring, drift detection, continuous learning loops, and ML operations for agentic systems.• Collaborate extensively with product, engineering, design, and go-to-market teams to translate innovative research into customer-facing solutions.• Investigate leading-edge techniques in prompting, retrieval-augmented generation, chain-of-thought, tool use, long-term memory, and RL or imitation learning for agent behavior, applying them to automation workflows.• Establish best practices, frameworks, and metrics for evaluating agentic systems, encompassing offline evaluation, simulation environments, human-in-the-loop feedback, A/B testing, and analyses of cost, latency, and quality.• Act as a technical leader and mentor across ML engineering, data science, and software engineering, promoting a culture of experimentation, reproducibility, version control, and thorough evaluation.• Represent UiPath in the broader community through publications, open-source contributions, conference participation, and collaboration with academic and ecosystem partners.

Jan 5, 2026

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Senior Software Engineer - Expert in Distributed Data Systems

Databricks

Full-time|On-site|Bellevue, Washington

Join our dynamic team at Databricks as a Senior Software Engineer specializing in Distributed Data Systems. This pivotal role involves designing and implementing cutting-edge data solutions that enhance our cloud platform. You will collaborate with cross-functional teams to create robust systems that manage and process large-scale data efficiently.

Mar 20, 2026

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Senior Project Manager for Data Center Security Initiatives

CoreWeave

Full-time|$143K/yr - $191K/yr|On-site|Livingston, NJ / New York, NY / Sunnyvale, CA / San Francisco, CA / Bellevue, WA/ Dallas, TX / Richmond, VA

CoreWeave, a public cloud provider specializing in AI infrastructure, supports clients ranging from emerging startups to large enterprises. Since its founding in 2017, CoreWeave has experienced rapid growth and is now listed on Nasdaq (CRWV as of March 2025). More details about the company can be found at www.coreweave.com. Role overview The Senior Project Manager for Data Center Security Initiatives leads the implementation of advanced physical security systems throughout CoreWeave’s data centers. Reporting to the Senior Manager of Data Center Risk and Assurance, this role manages large-scale projects, including the deployment of Wireless Intrusion Detection Systems (WIDS) and other critical security technologies. The position works with multiple teams to ensure new security systems meet both industry standards and client needs. Main responsibilities Project management: Direct all stages of deploying new physical security solutions, such as WIDS, at several data center locations. Collaboration: Coordinate activities across the project lifecycle for security technology rollouts and operational launches, ensuring alignment with company objectives. Cross-functional teamwork This role partners with groups including Security Design and Commissioning, Networking, Security Engineering, and the Global Security Operations Center to deliver successful project outcomes. Locations CoreWeave offices are in Livingston, NJ; New York, NY; Sunnyvale, CA; San Francisco, CA; Bellevue, WA; Dallas, TX; and Richmond, VA.

Apr 24, 2026

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Senior Data Engineer Contractor (8 Months)

Sono Bello

Contract|$60/hr - $80/hr|On-site|WA - Bellevue

Sono Bello stands as America’s premier cosmetic surgery specialist, boasting over 185 board-certified surgeons who have successfully conducted more than 300,000 laser liposuction and body contouring procedures. Joining Sono Bello means becoming part of a vibrant and high-energy team where every individual plays a crucial role. We are passionate about our work, and it reflects in our results! We hold the belief that everyone deserves to achieve their ideal body today and embrace their best life now.This position requires on-site presence in the Greater Seattle Area.We are in search of a proactive Senior Data Engineer Contractor for a duration of 8 months, with a robust expertise in Databricks to develop and enhance data pipelines spanning engineering, marketing, online booking, and finance domains. This contractor will be responsible for designing and implementing ETL processes in Databricks utilizing Python, SQL, Delta Lake, and Unity Catalog. Key responsibilities include creating bronze, silver, and gold data models, scheduling jobs, conducting data quality checks, and documenting governed datasets for downstream utilization. The role also involves collaboration with business stakeholders to define entities, events, funnel stages, and reporting needs, while establishing scalable architecture, access controls, and data governance standards.

Apr 10, 2026

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Contract|On-site|Bellevue

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Aug 17, 2017

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Tera Data Consultant

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Full-time|On-site|Bellevue

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Oct 18, 2016

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Full-time|On-site|Bellevue

Join our innovative team as a Tera Data Developer at Sonsoft Inc. in Bellevue, WA. This is a fantastic opportunity for an experienced professional to work on exciting projects, leveraging advanced data technologies to deliver impactful solutions.In this role, you will be responsible for designing, building, and optimizing data systems. Your expertise in Tera Data will be crucial as you collaborate with cross-functional teams to enhance our data processing capabilities.

Oct 5, 2016

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Tera Data Developer

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Full-time|On-site|Bellevue

Join our dynamic team at Sonsoft Inc. as a Tera Data Developer! In this pivotal role, you will leverage your expertise to design, develop, and maintain robust data solutions. Collaborate with cross-functional teams to ensure data integrity, security, and accessibility. Your contributions will directly impact our data-driven decision-making processes and help drive business growth.

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