Senior Data Engineer at Flatiron Health | New York

Flatiron Health is building a connected oncology ecosystem to transform cancer care. The team values integrity and personal growth, and works to modernize cancer care infrastructure from its New York office. Role Overview The Senior Data Engineer will help advance Flatiron Health’s mission: improving and extending lives by learning from every person affected…

Flatiron Health is working to improve cancer care by building a more connected oncology ecosystem. The team values integrity and growth, and aims to learn from every patient’s experience. Flatiron is seeking a Software Engineer (Contractor) for its New York office. This role focuses on designing and implementing technology solutions that support clinical practice and research. The position involves working closely with colleagues from different specialties to address real challenges in oncology. What You Will Do Work alongside engineers, product managers, and stakeholders to fully understand problems before proposing solutions, balancing user needs, technical constraints, and business goals. Clarify ambiguous requirements and turn them into actionable tasks, while identifying potential risks early. Build, test, and deploy features from start to finish. Write code that is both clean and maintainable for current and future needs. Troubleshoot and fix bugs by tracing issues to their source, designing targeted solutions, and validating fixes with automated tests. Participate in design and code reviews, offering and receiving feedback to help the team improve. Use AI-assisted coding tools and modern technologies to speed up development, while maintaining high standards for security, reliability, and code quality. This contract position is based in Flatiron Health’s New York office.

About Fira HealthFira Health is pioneering AI-driven infrastructure to streamline the administrative functions of healthcare. Our focus is on home health, empowering agencies to minimize overhead costs, expedite payments, and concentrate on patient care rather than paperwork. Our innovative AI platform seamlessly integrates with existing operations, automating intricate workflows such as insurance verification, prior authorization, and billing processes.Supported by premier investors and a team with extensive experience in healthcare operations, applied AI, and workflow automation, Fira is positioned at the forefront of healthcare transformation.About the RoleWe are seeking a talented Data Engineer to develop and refine the data infrastructure that fuels our business intelligence, operational analytics, and AI-enhanced decision-making across our platform. Your responsibilities will include designing and implementing data pipelines, integrating diverse healthcare data sources, and modeling complex domains such as Revenue Cycle Management (RCM), intake, and clinical operations to facilitate real-time insights and automation.The ideal Data Engineer at Fira is highly analytical, meticulous, and adept at navigating the entire data stack—from raw data ingestion to analytics-ready models. You will play a pivotal role in shaping our data architecture and defining metrics for measuring, monitoring, and optimizing all facets of our operations.Over time, you will gain full ownership of our data platform, establishing the technical vision for our data infrastructure and enabling data-driven insights that influence product and business strategies.

Role overview The Beverage Specialist at Eataly Flatiron introduces guests to the variety of Italian drinks available. This role involves sharing expertise and enthusiasm for wines, coffees, and other beverages in a bustling restaurant environment. What you will do Curate and serve Italian wines, coffees, and specialty drinks to guests Engage with guests to create memorable beverage experiences Offer insights into Italian beverage traditions and selections Location This position is based at Eataly Flatiron in New York.

Our mission: to eliminate every barrier to mental health.At Spring Health, we’re dedicated to transforming mental healthcare by dismantling every obstacle that hinders individuals from receiving timely assistance. Our clinically validated technology, Precision Mental Healthcare, enables us to provide personalized care—be it therapy, coaching, medication, or more—tailored specifically to the unique needs of each individual.As a trusted partner to over 450 organizations, from innovative startups to established Fortune 500 companies, we are a leading provider of mental health services, delivering care to 10 million individuals. Our clientele includes well-known brands such as Microsoft, Target, and Delta Airlines, all relying on us to achieve superior outcomes for their workforce worldwide. Our cutting-edge platform has successfully generated a net positive ROI for employers, and we are the sole company in our sector to receive external validation of net savings for our customers.Having secured funding from notable investors such as Generation Investment, Kinnevik, Tiger Global, and Northzone, our recent Series E funding has elevated our valuation to $3.3 billion. We’re just beginning our journey—join us in making mental healthcare accessible to all.In this role, reporting to the Head of Engineering for New Ventures and collaborating closely with engineering, product, and clinical teams, the Senior Data & Insights Engineer will oversee the complete data layer, encompassing data pipelines, models, analytics, and dashboards. Your primary goal will be to ensure that our data is reliable, accessible, and instrumental in driving informed decision-making across the organization.This position offers significant autonomy and impact, as you will serve as the key resource for addressing critical business and product inquiries, maintaining data integrity, and continuously enhancing data flow across various systems. You will engage with backend systems (Postgres), our data warehouse (Snowflake), and analytics tools (e.g., Mixpanel) to unify disparate data into a dependable and actionable source of truth. In this dynamic, early-stage environment, you will have the opportunity to define both the data architecture and strategy.

Join our dynamic team at K Health Careers as a Senior Data Engineer where you will have the opportunity to shape the future of healthcare technology. You will be responsible for designing, building, and maintaining robust data pipelines that support our innovative healthcare solutions. Your expertise will help us harness the power of data to deliver outstanding patient care and improve health outcomes.

Role overview The Senior Data Engineer at NBCUniversal Media, LLC plays a key part in developing and maintaining data solutions that power analytics and business intelligence throughout the organization. Based in New York, this position collaborates with teams from various departments to ensure that data remains accurate, accessible, and prepared for analysis. What you will do Design and build data pipelines and systems that meet analytics requirements Collaborate with cross-functional teams to uphold strong data quality and availability standards Apply modern technologies to streamline and automate data processing workflows

Join Metropolis as a Senior Data Engineer, where you will play a pivotal role in transforming our data infrastructure. You will collaborate with a dynamic team to design, implement, and maintain scalable data pipelines that empower data-driven decision-making across the organization. Your expertise will be crucial in optimizing data processes and ensuring data quality.

Join StubHub, a leader in redefining the live event experience on a global level. From first-time attendees to seasoned concertgoers, we strive to enhance every ticketing journey, ensuring our platform is the safest and most convenient for fans and sellers alike, whether they are individuals selling a single ticket or promoters orchestrating a global stadium tour.We are on the lookout for a skilled Senior Data Engineer to become an integral part of our Data team. In this capacity, you will design and implement the foundational systems and pipelines necessary for centralizing both StubHub’s internal data and third-party data sources. Our mission is to empower company-wide organizations to leverage data for analysis, reporting, new product innovation, experimentation, and machine learning. Your responsibilities will include developing the core infrastructure for our data lake and data warehouse, creating essential data models and pipelines, and crafting shared tools to facilitate the generation of high-quality, trustworthy data assets.As a Senior Data Engineer within the Data Platform team, your contributions will be pivotal in shaping core infrastructure, frameworks, and analytical data layers. You will also help define a culture of excellence in data engineering and mentor team members to achieve these standards. We seek a candidate who is not only passionate about the synergy between data and software development fundamentals but also capable of employing these principles to build a data ecosystem that is principled, maintainable, and scalable in alignment with StubHub's rapid growth. You will develop expertise in specific business domains, proactively anticipating the needs of those verticals.Location: Hybrid (3 days in office/2 days remote) – New York, NY or Century City, CA

Polymarket operates the world’s largest prediction market platform, letting people trade on the outcomes of events in politics, economics, sports, culture, and current affairs. As a decentralized peer-to-peer marketplace, Polymarket aggregates diverse perspectives into transparent, market-based probabilities, reflecting collective expectations about the future. With $21B traded in 2025, Polymarket is growing quickly and aims to become a trusted source of truth in global media. The Senior Data Engineer role centers on advancing the data platform that underpins every user-facing aspect of Polymarket. The data layer supports features like leaderboards, PnL, activity feeds, positions, and analytics, all with strict sub-100ms latency goals at crypto scale. This position is based in New York and joins a small, high-ownership team where engineers manage workflows end-to-end, not just follow a set roadmap. Role overview This role involves hands-on work in design, architecture, and delivery. The main goal is to strengthen Polymarket’s analytics and data serving layer so it becomes a reliable foundation for the company. The Senior Data Engineer will tackle issues such as schema drift, migration parity, latency regressions, and cost management. When questions arise about data layer performance or cost, this engineer will either provide answers or redesign components to meet targets. What you will do Own the OLAP analytics layer. Lead the columnar warehouse from raw event ingestion to cleaned facts, business aggregates, and API-serving views. Tasks include materialized view design, refresh schedules, catalog management, query planning, and cost optimization. Partner on the OLTP serving layer. Work with the team on high-write serving tables that power product APIs. Focus on partition strategy, indexing, trigger pipelines, autovacuum tuning, and bloat monitoring, while maintaining sub-100ms read path targets. Shape streaming and data lake infrastructure. Define Kafka topic schema contracts, update the S3 lake layout with modern table formats, and contribute to tools that validate data accuracy during migrations. Design data models at scale. Work with event-sourced, append-mostly data that includes chain-reorganization semantics.

About Atria:Atria Health is a pioneering, membership-based preventive healthcare practice dedicated to providing state-of-the-art primary and specialty care across New York, South Florida, and Los Angeles (with an expansion planned for 2026). Our global telemedicine services are available 24/7, ensuring that our members receive top-tier care anytime, anywhere.Our multidisciplinary team, comprised of over 60 distinguished in-house physicians, is committed to delivering proactive, preventive, and precision-based healthcare tailored to the unique needs of Atria members and their families. We are driven by our goal to enhance both lifespan and healthspan through comprehensive screenings, innovative therapeutics, and individualized interventions aimed at preventing disease and facilitating early detection.Each member’s care is overseen by a dedicated Chief Medical Officer who collaborates closely with specialists in various fields, including cardiology, neurology, pediatrics, women's health, endocrinology, integrative health, performance and movement, nutrition, and more.Through our non-profit Atria Research Institute and Public Health Institute, we are also committed to accelerating the application of medical breakthroughs and expanding access to preventive care for as many individuals as possible.We are currently looking for a mid-level Data Analyst to join our Technology organization and support our concierge healthcare team. This role transcends conventional reporting; you will play a vital role in constructing the data infrastructure that informs business decisions while establishing yourself as a trusted advisor in healthcare operations and strategy.You will be responsible for managing our reporting ecosystem, transforming raw healthcare data into actionable insights that enhance patient care and drive business outcomes. Your contributions will directly impact clinical operations, member experience initiatives, and strategic planning efforts.Key Responsibilities:Reporting & Analytics: Design and maintain dashboards and reports that monitor essential healthcare metrics such as patient outcomes, utilization patterns, provider performance, and member satisfaction.Collaborate with clinical and operations teams to assess their data needs and provide self-service analytics solutions.Perform ad-hoc analyses to address critical business inquiries and support strategic initiatives.Analytics Engineering: Develop and maintain semantic layers that ensure our data is accessible and reliable throughout the organization.Create structured data environments that facilitate analytics and automated reporting.Design data models that balance technical precision with business usability.Establish data quality standards and monitoring protocols.Business Partnership: Cultivate deep knowledge of concierge healthcare operations, appreciating both clinical and business contexts.Translate complex healthcare data into clear narratives that inform decision-making at all organizational levels.Work collaboratively with leadership to identify opportunities for enhancing patient care and operational efficiency.Transition from being a data provider to a strategic partner who influences business direction.

The City of New York is hiring a Data Engineer to support essential data projects that inform city decisions and strengthen public services. This full-time role is based in New York City and centers on using data analytics to address challenges across city operations. Role overview As a Data Engineer, you will play a key part in initiatives that shape how the city uses information to make choices and deliver services. The work involves collaborating with a team focused on improving processes and outcomes for residents. What you will do Contribute to projects that gather, organize, and analyze data for city departments Help translate complex data into practical insights for decision-makers Work with colleagues to find solutions that enhance city operations and public services Location This position is based in New York City and requires full-time availability.

Join Camber as a Senior Data Engineer and play a pivotal role in transforming our data architecture! You will be responsible for designing, developing, and maintaining our data pipelines and systems. Collaborate with cross-functional teams to ensure the reliability and scalability of data solutions while adopting best practices in data management.

About AtriaAtria Health is a pioneering membership-based preventive healthcare practice that provides state-of-the-art primary and specialty care across New York, South Florida, Los Angeles (anticipated in 2026), and globally via 24/7 telemedicine services.Our dedicated team of over 60 leading physicians specializes in delivering proactive, preventive, and precision care tailored to the unique needs of Atria members and their families. We are committed to enhancing both lifespan and healthspan through comprehensive screenings, innovative therapeutics, and customized interventions aimed at disease prevention and early detection.Each member's healthcare journey is guided by a dedicated Chief Medical Officer collaborating with specialists in various fields, including cardiology, neurology, pediatrics, women's health, endocrinology, integrative health, performance and movement, nutrition, and more.Through the nonprofit Atria Research Institute and Public Health Institute, we are also focused on expediting the application of medical breakthroughs and broadening access to preventive care for a greater number of individuals.Atria Health is on the lookout for a Senior Software Engineer to join our Data Engineering team. This senior role will be instrumental in advancing our data infrastructure, pipelines, and analytics platforms. You will be responsible for designing and constructing scalable data systems, mentoring fellow engineers, and collaborating with cross-functional product teams (Clinical Experience, Member Experience, and Care Delivery) to ensure the delivery of reliable, high-quality data that informs insights and decision-making. Your contributions will be critical in supporting Atria's long-term research goals and empowering our physicians to extract innovative clinical insights. You will take ownership of intricate data initiatives from conception through execution while establishing best practices that enhance the entire engineering organization.Technology StackLanguages: Python, SQLData Processing: Dagster, dbtInfrastructure: Google Cloud Platform, Terraform, Kubernetes, DockerData Storage: Snowflake, PostgreSQL, MySQLStreaming: Pub/Sub, KafkaCI/CD: GitHub ActionsMonitoring & Observability: Datadog, Grafana, OpenTelemetryKey ResponsibilitiesData Infrastructure & PipelinesDesign, build, and maintain scalable data pipelines and ETL/ELT workflows.Contribute to the ownership and enhancement of our Snowflake data warehouse architecture.Implement data modeling best practices to cater to analytics and reporting requirements.Lead initiatives to enhance data quality, including validation, testing, and monitoring frameworks.Cross-Team CollaborationCollaborate with product engineering teams to create data contracts and integrate data capture into applications.Work closely with Analytics and Business Intelligence teams to comprehend reporting needs and deliver reliable data solutions.

Uncommon Schools is seeking a talented Senior Data Engineer to join our dynamic team in New York. In this role, you will leverage your expertise in data engineering to build robust and scalable data solutions that drive impactful decisions across our organization. You will work closely with cross-functional teams to understand their data needs and deliver innovative solutions that enhance our educational initiatives.

Join us in making a significant impact in the realm of movement health! Myo is expanding into the iconic Flatiron District of New York City, and we invite you to be part of our mission to transform rehabilitation and wellness.If you are driven by a passion for enhancing people's mobility, alleviating pain, and helping them engage in their favorite activities for a longer, healthier life, we want you on our founding NYC team. This is a unique opportunity to influence the landscape of proactive care in a vibrant new market.About UsMyo represents the future of modern physical therapy. Our approach combines personalized, one-on-one expert care from physical therapists, chiropractors, and massage therapists, focusing on full-body awareness and proactive strategies to prevent injuries, reduce discomfort, and enhance everyday function.With over 20 locations across the United States and Canada, we are committed to encouraging clients to integrate proactive health solutions as a vital component of their daily routine.Your Role in NYCThis position is more than just a job; it's your chance to help craft something extraordinary. As a vital member of our NYC team, you will play an essential role in delivering Myo's exceptional care experience to a new community. Based in the heart of the Flatiron District, you will engage with a dedicated clientele and collaborate with a team equally passionate about making a meaningful difference.

At Garner Health, we are on a mission to revolutionize the healthcare economy by providing high-quality and affordable care for everyone.We are fundamentally rethinking healthcare in the U.S. by collaborating with employers to reshape healthcare benefits through transparent incentives and powerful, data-driven insights. Our innovative approach directs employees towards higher-quality, more affordable care, creating a system that benefits all stakeholders. Patients enjoy improved health outcomes, employers optimize their healthcare spending, and physicians are rewarded for delivering outstanding care rather than just increasing procedures.As one of the fastest-growing healthcare technology firms in the nation, Garner Health's products are trusted by top employers and healthcare providers. We are assembling a team of passionate, mission-driven professionals eager to make a substantial impact on healthcare at scale.About the Role:We are in search of a highly skilled Senior Data Analyst to join our Search team. You will be instrumental in developing the core systems that drive our product, including but not limited to the provider directory, recommendations, A/B testing for engagement and healthcare outcomes, and product analytics. Your role will be critical in leveraging data to guide members towards optimal healthcare outcomes, collaborating with product managers and engineers to implement high-performing systems at scale. Garner’s member app is designed to navigate members through their healthcare journey, ensuring they receive quality care while maintaining provider affordability and availability.Where You Will Work:This position is based in our New York City office, located in the Financial District. You will be required to work in the office three days a week, specifically on Tuesdays, Wednesdays, and Thursdays.What You Will Do:Analyze, develop, and report on product metrics and key performance indicators (KPIs) for internal teams and stakeholders.Evaluate and assess the success of product initiatives through goal setting, A/B testing, forecasting, and monitoring key product metrics to identify trends.Manage projects from inception to completion, including problem definition, implementation, validation, and iteration.Research, create, and maintain data pipelines, statistical models, and advanced analytics solutions.Collaborate cross-functionally with data, product, engineering, and operations teams to define product and member engagement metrics and model member behavior.Synthesize and present findings to Garner leadership to influence company-wide decisions.

At Garner Health, our mission is to revolutionize the healthcare economy, ensuring high-quality and affordable care for everyone.We are fundamentally rethinking the healthcare landscape in the U.S. by collaborating with employers to redesign healthcare benefits using transparent incentives and potent, data-driven insights. Our strategy empowers employees to access higher-quality, more affordable care, creating a system that benefits all stakeholders. Patients attain better health outcomes, employers utilize healthcare funds more effectively, and physicians are incentivized to provide outstanding care rather than simply performing more procedures.Garner is recognized as one of the fastest-growing healthcare technology firms in the nation. Our solutions are trusted by the most discerning employers and providers in the industry, and we are assembling a team of talented, mission-driven professionals dedicated to making a substantial impact on healthcare at scale.About the Role:We are in search of an outstanding Applied Scientist to enhance our core search systems that power our product, particularly focusing on provider selection and recommendation algorithms. You will be instrumental in shaping how Garner identifies high-value providers for our members by developing evaluation frameworks, objective functions, and algorithms that optimize our search experience.This position is perfect for someone who thrives on tackling ambiguous, high-impact challenges and can convert complex real-world constraints into robust algorithmic solutions. You will collaborate closely with Product and Engineering teams to design and implement production algorithms that balance provider quality, affordability, and accessibility.Where You Will Work:This role is based in our New York City office. You must be willing to work in the office three days a week on Tuesday, Wednesday, and Thursday.Your Responsibilities:Develop and maintain the algorithms that drive Garner’s search functionalities.Create objective functions, scoring frameworks, and decision logic that balance competing priorities like quality, cost, and access.Transform ambiguous product and business challenges into rigorous algorithmic methodologies suitable for production deployment.Collaborate with engineers to scale production systems effectively.Assess when applied machine learning, optimization, heuristics, or rule-based methods are appropriate for a given challenge.Gain a deep understanding of the healthcare economy.

Join Our Team as a Senior Data Engineer!Are you ready to take your career to the next level? FanDuel is seeking a Senior Data Engineer who will be instrumental in designing and building scalable, reliable, and high-performance data solutions that fuel analytics, machine learning, and business operations. As a hands-on contributor, you will play a significant role in establishing the core technical foundation of our data ecosystem.You will collaborate with a diverse team of engineers, analysts, product managers, and data scientists to create data pipelines and platforms that lead to impactful business results. The ideal candidate possesses excellent problem-solving abilities, is a strong team player, and brings both technical expertise and a collaborative spirit to every challenge.If you're excited about the prospect of working in a dynamic environment and tackling innovative challenges, we want to hear from you!Key Responsibilities:Build & Maintain Data Infrastructure: Design, develop, and maintain scalable ETL/ELT pipelines to support various data products and operational systems. Work with large-scale, complex datasets ensuring data cleanliness, proper modeling, and accessibility across the organization.Deliver High-Quality, Reusable Solutions: Create modular, reusable data models and assets utilizing tools like Spark, dbt, or similar frameworks. Collaborate with stakeholders to transform business needs into reliable, production-ready data solutions while ensuring data quality and consistency.Contribute to Engineering Excellence: Advocate for software engineering best practices, including testing, version control, documentation, and code reviews. Engage in technical design discussions and architecture reviews, helping to evolve our data platform for improved performance and scalability.Collaborate & Communicate: Partner closely with data scientists, analysts, and product managers to ensure alignment and drive solutions that meet business objectives.

About UsWagmo is an innovative pet health company dedicated to empowering pet owners by providing exceptional pet benefits through employers. We focus on everything from routine care to unexpected emergencies, delivering tech-enabled solutions that prioritize value and flexibility, so our pet parents can confidently provide the best care for their furry friends.Our ValuesAt Wagmo, we tackle complex challenges while enjoying the company of dogs. We emphasize authenticity, efficiency, and teamwork, valuing performance over hierarchy. We believe in fair compensation and maintaining a light-hearted approach to our work culture. Our core values guide our interactions and decisions, and we ensure that they are an integral part of our hiring process.Position OverviewWe are on the lookout for a Senior Data Engineer who will play a key role in building and scaling the data infrastructure that drives Wagmo's expansion. In this role, you will design and manage robust data pipelines, architect our data warehouse, and collaborate with various teams including Analytics, Finance, Product, Marketing, and Engineering to guarantee clean and reliable data flows throughout the organization. You should possess hands-on experience with Python, SQL, and modern data stack tools, and prioritize data quality and governance alongside swift project delivery.Your responsibilities will include translating complex business challenges into sustainable technical solutions, mentoring emerging data talent, and establishing a solid data foundation that supports Wagmo's transition from startup to scale.Technology Stack: BigQuery · dbt · Fivetran · Python · GCP · GitHub · Tableau · Slack · Notion · ClaudeKey ResponsibilitiesDesign, develop, and maintain scalable ETL/ELT pipelines and data warehouse architecture using BigQuery. Own the infrastructure from end-to-end, continuously enhancing it as the business evolves.Define and implement clean, well-tested data models and dbt transformations, adhering to strong CI/CD, code review, and documentation standards.Ensure data integrity and reliability across all systems through rigorous validation, monitoring, anomaly detection, and comprehensive data contracts and lineage documentation.