Summer 2026 E-Commerce Internship at tarte | New York

Join Polymarket’s 2026 Internship Program and immerse yourself in a dynamic environment where innovation meets opportunity. As an intern, you'll have the chance to work alongside industry leaders, gain hands-on experience, and contribute to exciting projects that shape the future of trading and prediction markets.

Join Polymarket as a Legal Summer Associate and immerse yourself in a dynamic environment where you can contribute to innovative projects and enhance your legal skills. As a Summer Associate, you will have the opportunity to work closely with experienced legal professionals, gaining hands-on experience in legal research, contract analysis, and compliance. This program is designed for individuals eager to learn and make a meaningful impact in the rapidly evolving world of digital markets.

Join our dynamic finance team as a Senior Accountant at Polymarket. You will play a crucial role in managing financial records, ensuring compliance, and providing strategic insights to support our growth. Your expertise will help us navigate the complexities of the finance landscape while contributing to our mission of creating a more informed world.

Join Polymarket as a Senior Recruiter, where you will play a crucial role in shaping our talent acquisition strategies. You will collaborate with various teams to identify hiring needs and implement innovative recruitment techniques to attract top-tier candidates. Your expertise will guide us in building a diverse and dynamic workforce that drives our mission forward.

About PolymarketPolymarket stands as the premier prediction market platform globally, empowering individuals to share insights on real-world events through trading outcomes in politics, economics, sports, culture, and current affairs. Unlike traditional platforms, Polymarket operates as a peer-to-peer marketplace devoid of a centralized 'house', thereby aggregating diverse opinions into clear, market-based probabilities that mirror collective expectations for the future.Our rapid growth is evident with a staggering $21 billion traded in 2025, alongside our increasing adoption as a reliable alternative news source. We aspire to be a pervasive beacon of truth in global media, driven by swift, consistent, and highly technical market infrastructure.About the RoleWe are on the lookout for an Accounting Manager to take charge of our general ledger, oversee the month-end close, and manage daily accounting operations at Polymarket US. Reporting directly to the US Controller, you will be instrumental in ensuring the accuracy and reliability of our financial records across all US legal entities, enabling us to meet internal and external reporting requirements efficiently.In collaboration with the Controller and our international accounting team, you will ensure that our financial books are meticulously maintained, facilitate a seamless close process, and prepare our financial reporting for auditors, regulators, and management needs.Key ResponsibilitiesGeneral Ledger & Month-End CloseManage the daily upkeep of the general ledger, encompassing journal entries, accruals, and balance sheet reconciliations.Oversee the complete month-end close cycle, ensuring accurate and timely financial statements for our US legal entities.Maintain consistency in accounting policies and chart of accounts across all entities.Coordinate with our international accounting team to facilitate intercompany reconciliations and consolidations.Financial ReportingDevelop and sustain financial reports to meet management, regulatory, and audit requirements.Ensure our financial records are always prepared for timely reporting to various stakeholders.Audit SupportAct as a primary liaison during the annual audit cycle, preparing documentation, schedules, and work papers for external auditors.

Join Polymarket as an Office Manager and play a pivotal role in streamlining our office operations in the heart of New York City. You will ensure that our workplace functions smoothly and efficiently. Your responsibilities will include overseeing administrative functions, managing office supplies, coordinating events, and fostering a productive work environment. This position is perfect for a proactive individual who thrives in a dynamic setting and is passionate about enhancing workplace efficiency.

About PolymarketPolymarket stands as the largest prediction market platform globally, empowering individuals to express their insights on real-world events through trading. Our peer-to-peer marketplace eliminates the need for a centralized house, thereby aggregating diverse opinions into transparent, market-based probabilities that accurately reflect collective expectations regarding future events across various sectors including politics, economics, sports, culture, and current affairs.As we experience rapid growth, with $21 billion traded in 2025, our aspiration is to solidify our position as a dominant source of truth in global media. We invite you to join us in fueling our exciting journey.About the RoleIn this senior executive position, reporting directly to the Founder & CEO, you will oversee the complete market lifecycle. Your responsibilities will encompass everything from market listings to structure, liquidity development, resolution processes, and ensuring that our platform earns the trust of both everyday traders and sophisticated institutions.The ideal candidate should possess over 10 years of experience in financial markets and be prepared to establish the operational frameworks necessary for a market function that drives one of the most thrilling emerging asset classes of our time.Key ResponsibilitiesLead a dedicated team focused on market selection, liquidity, operations, and resolution.Develop and implement market listing strategies that keenly identify what drives trading interest.Establish frameworks for assessing market viability, including event significance and audience reach.Manage market structure elements—tick sizes, fees, rebates, and incentive designs—to ensure competitive spreads and robust liquidity.Cultivate and maintain strategic relationships with market makers, trading firms, and liquidity providers as the primary contact for key stakeholders.Design innovative liquidity programs and commercial partnerships to attract and retain substantial capital.Collaborate with media, sports, politics, and other partners to optimize resolution strategies and assess outcome viability.Define scalable processes for market creation, maintenance, and resolution across our expanding catalog.Ensure resolution credibility and uphold market integrity.

Polymarket is seeking a dynamic and experienced Head of People to lead our human resources strategy. In this role, you will be responsible for cultivating a diverse and inclusive workplace culture, driving talent acquisition, and enhancing employee engagement. As a key member of the leadership team, you will shape the future of our organization by implementing innovative HR practices that align with our business objectives.

About PolymarketPolymarket stands as the largest global prediction market platform, empowering individuals to share their insights on real-world events through trading on outcomes spanning politics, economics, sports, culture, and current affairs. Functioning as a decentralized peer-to-peer marketplace without a central 'house', Polymarket aggregates a wide array of opinions into clear, market-driven probabilities that reflect collective expectations about future events.Our rapid growth is evident as we approach $21 billion traded in 2025, alongside increasing adoption as a reliable alternative news source. Our vision is to emerge as a pervasive beacon of truth within global media, driven by a swift, dependable, and highly technical market infrastructure.About the RolePolymarket is in search of a talented backend engineer to join us in constructing and enhancing the essential exchange infrastructure that fuels our markets. This position emphasizes the development of high-performance, low-latency backend systems that must operate correctly, swiftly, and resiliently under the demands of real-world trading scenarios.You will play a vital role as a primary contributor, collaborating with other senior engineers to design, implement, and refine the systems that form the core of Polymarket's exchange. This position offers significant ownership with minimal bureaucratic hurdles and a strong focus on results.Your ResponsibilitiesWe are seeking an experienced backend engineer who thrives on close-to-the-metal work and tackling challenging distributed systems problems.Develop the Exchange Backend: Architect and build scalable, low-latency backend services that drive the Polymarket exchange, utilizing C/C++ or other performance-oriented programming languages (Go, Rust, Java).Enhance Performance & Scale: Analyze, tune, and troubleshoot systems with an emphasis on latency, throughput, memory usage, and correctness in production environments.Architect Distributed Systems: Create and maintain robust APIs, data pipelines, and event-driven architectures using messaging and streaming technologies (Kafka, Pulsar, RabbitMQ).Ensure Reliability & Operations: Strengthen security, availability, performance, and scalability within backend systems, while actively participating in diagnosing and resolving production challenges.Cross-Functional Collaboration: Work in close partnership with engineers across product, infrastructure, and data teams to ensure seamless integration between the exchange and the overall platform.Enhance Code Quality: Engage in code reviews, design discussions, and architectural debates to drive high standards in software development.

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.

Join Polymarket as a Senior C/C++ Engineer, where you will play a pivotal role in shaping the future of our trading platform. You will leverage your expertise in C and C++ to develop high-performance systems that support our innovative marketplace. Collaborate with a talented team dedicated to providing a seamless experience for users and driving the growth of decentralized prediction markets.

Polymarket is a leading prediction market platform where people can trade on the outcomes of real-world events across politics, economics, sports, culture, and current affairs. Built as a decentralized marketplace, the platform transforms collective opinions into clear, market-driven probabilities. With rapid growth and a projected $21 billion trading volume in 2025, Polymarket aims to become a key source of truth in global media. Role overview The Senior Web Engineer will take ownership of major frontend features, focusing on reliability and efficient deployment. This position covers the full lifecycle of web surfaces: from design and rollout to ongoing monitoring and production support. The work sits at the intersection of frontend product development, backend integration, performance tuning, and reliability. Deep experience with React and Next.js is required, especially in building and deploying complex features and resolving production issues. Independent decision-making, technical leadership, and a commitment to raising quality standards are central to this role. What you will do Lead and deliver complex features: Build and launch new web functionality across Polymarket’s core interfaces, balancing speed, quality, architecture, and sustainability. Collaborate across technology layers: Work closely with backend engineers to design APIs and data flows, and partner with QA, TPM, product, and design teams to clarify requirements and ensure smooth launches. Maintain reliability and manage incidents: Monitor dashboards, alerts, and user feedback to quickly identify and resolve issues. Work with backend and infrastructure teams during incidents to find root causes and implement fixes and preventive measures. Improve frontend observability: Develop and refine logging, metrics, alerts, dashboards, and error reporting to give the team clear insights into frontend performance. Advance engineering standards: Identify technical debt, propose and implement refactors, and contribute to system design discussions to strengthen frontend architecture.

About PolymarketPolymarket stands at the forefront of innovation as the world’s largest prediction market, blending elements of a betting platform with a future-focused search engine. Our platform has facilitated over $8 billion in trades last year, demonstrating our rapid growth and increasing recognition as a reliable alternative news source. Our vision is to establish ourselves as a prominent beacon of truth in global media, and we invite you to join us in this exciting journey.About the RoleWe are on the lookout for a seasoned API Engineer who is passionate about crafting and deploying robust endpoints for our Independent Software Vendor (ISV) partners. In this pivotal role, you will design and implement the essential systems that connect users to our CFTC-regulated exchange, focusing on REST and FIX API frameworks. This position offers a unique opportunity to significantly influence our growing US Exchange business by collaborating closely with engineering teams to develop scalable systems that manage liquidity efficiently.Your Key ResponsibilitiesMaintain API Access: Develop systems enabling ISV participants and institutional clients to effectively set market prices on the US Exchange.Oversee Market Maker Onboarding: Collaborate with our Forward Deployed Engineering team to facilitate seamless access to the API for market makers.Manage Integrations: Architect and rigorously test various FIX, REST, and SDK integrations to accommodate the diverse needs of institutional clients.Design for Scale and Compliance: Create systems capable of processing thousands of daily transactions while ensuring compliance with CFTC regulations and maintaining detailed audit trails.Collaborate Across Teams: Work closely with operations, compliance, and product teams to understand their workflows, gather insights, and iterate on tools swiftly.Lead Technical Decisions: Engage in architecture discussions, conduct code reviews, and contribute to establishing best practices within the team.

About PolymarketPolymarket stands as the largest prediction market platform globally, offering individuals a unique opportunity to express their insights on real-world events by trading on outcomes in politics, economics, sports, culture, and current affairs. Our peer-to-peer marketplace operates without a centralized house, allowing us to aggregate diverse opinions into transparent, market-based probabilities that truly reflect collective expectations about the future.As we continue to expand rapidly, with an impressive $21B traded in 2025, we are positioning ourselves as an alternative source of news and insights. Our vision is to be a trusted beacon of truth in global media, and we invite you to join us in this mission.About the RolePolymarket is in search of a Senior Technical Program Manager who will bring organization and execution excellence to our dynamic engineering team. In this role, you will facilitate coordination among engineering teams, ensuring that cross-functional initiatives are delivered on schedule while establishing the systems and processes necessary for our growth.This position is foundational for our evolving organization. As we have experienced rapid growth, we currently lack formal PM processes. You will not merely implement existing frameworks; instead, you will design and develop them from the ground up.Key ResponsibilitiesDelivery & Execution: Oversee the complete delivery of technical projects encompassing backend services, infrastructure, and user-facing features. Take responsibility for timelines, dependencies, and alignment among stakeholders for our top priority initiatives.Cross-Team Coordination: Act as the central hub of coordination among engineering, product, and leadership teams. Proactively identify and mitigate blockers before they escalate into issues. Ensure all teams remain aligned on priorities and project sequencing.Process & Systems Development: Create and implement frameworks, rituals, and tools that enhance visibility into project progress while avoiding unnecessary bureaucracy.Technical Bridging: Facilitate the connection between product vision and engineering execution. A solid understanding of our architecture will be essential for scoping work and managing inter-team dependencies effectively.Documentation & Knowledge Management: Establish standards for technical documentation and decision records that are practical and utilized. Ensure asynchronous work is possible and our learnings are preserved.Stakeholder Communication: Manage communication with leadership and cross-functional partners, providing clear, actionable updates regarding project status, risks, and trade-offs.Team Development: As the organization grows, assist in building the program management function, which may include recruitment and mentorship of future team members.

Role overview The Program Counselor at the City of New York plays a direct role in supporting community programs designed to benefit local residents. The position involves daily interaction with participants, providing guidance and encouragement as they work toward their goals. Program Counselors help connect individuals with resources and offer steady support throughout their involvement in city programs. What you will do Meet individually with program participants to understand their needs and connect them with available city resources. Provide practical advice and support to help individuals achieve both personal and program-related goals. Work alongside community partners, city staff, and other stakeholders to improve program effectiveness. Support the City’s broader mission of community development through consistent engagement and program assistance. Location This role is located in New York, NY.

Join Joele Frank, a premier strategic communications firm, as we navigate our clients through critical challenges including mergers and acquisitions, shareholder activism, and crisis communications. Our team is dedicated to facilitating effective communication in high-stakes situations, ensuring our clients connect meaningfully with their stakeholders. We seek passionate individuals who embody a unique blend of intelligence, curiosity, and talent. Ideal candidates are adept writers and insightful communicators who excel in dynamic, fast-paced environments and enjoy collaborative team settings. All academic backgrounds are welcomed; many of our professionals hail from disciplines such as finance, law, and journalism. This is an in-office 8-week paid internship, where you will engage primarily with project-based teams, gaining invaluable experience and insights into the world of strategic communications.

NBC 4 New York offers a Production & Editorial Internship for the academic year. Based in New York, this role places interns inside a major newsroom, providing a close look at the daily flow of broadcast journalism. Role overview Participate in the daily operations of the newsroom Assist with creating content for news segments Support production teams as they prepare and deliver news coverage What you will gain Direct, hands-on experience in broadcast production and editorial work Opportunities to learn from seasoned professionals in the industry Insight into the workings of a major media organization Chances to develop new skills and expand your professional network This internship is intended for students interested in exploring careers in media and broadcasting. Interns will contribute to real newsroom projects and gain exposure to the fast-moving world of television news.

About Voyant PhotonicsAt Voyant Photonics, we are revolutionizing how machines perceive their environment through our state-of-the-art, compact LiDAR devices, which deliver exceptional performance and fit conveniently in the palm of your hand. Utilizing advanced silicon photonic chips, our sensors provide unmatched precision in range, speed, and reflectivity, all while being more cost-effective than traditional LiDAR systems. Our mission is to democratize high-precision sensing technology, enabling groundbreaking applications in robotics, autonomous systems, industrial automation, and more.We’re not just developing products; we’re propelling an industry forward. Our innovative technology creates a seamless transition from research to real-world application, making high-performance LiDAR both scalable and commercially viable.The OpportunityWe seek a passionate and driven intern to join our Technical Program Management team for a 4-month internship, with the potential for full-time employment thereafter. This pivotal role will serve as the strategic liaison between our hardware and design engineering, manufacturing, supply chain, and quality assurance teams. You will receive comprehensive training to manage cross-functional programs from initial conception to successful delivery, ensuring our LiDAR technology transitions smoothly into mass production.Your Profile: As a recent graduate, you may have prior internships in related fields and are eager to join an innovative, real-world Physical AI company based in New York City. You are excited to contribute to some of the most cutting-edge hardware technologies being developed today. In this role, you’ll gain invaluable insights from an experienced program management leader while actively shaping the future of our LiDAR technology.Core Values We Cherish:Respect: We operate with humility and integrity, viewing feedback as a valuable opportunity for growth.Ownership: We take accountability for our successes and setbacks, proactively engaging to resolve challenges.Simplicity + Clarity: We tackle complex problems by designing elegant, straightforward products and maintaining transparent communication.Responsibilities:Lead the planning, execution, and daily operations for hardware and software engineering teams, ensuring manufacturing readiness and effective supplier management.Drive program management, defining lifecycle and scope, setting milestones, and overseeing the budget and timeline for complex initiatives.Oversee engineering change control processes for product development.

Join Polymarket as a Regulatory Attorney, where you will play a pivotal role in navigating the complex regulatory landscape of the online betting and gaming industry. Your expertise will guide our efforts in ensuring compliance with applicable laws and regulations, while fostering innovation in our user-centric platform.