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Lead an app feature through ideation, development, launch, analysis, and iteration. Conduct user research, analyze market trends and quantitative data, develop product roadmaps, collaborate with designers and engineers, and optimize feature performance. The internship includes mentorship, ownership of a meaningful project, and exposure to the complete product development lifecycle.

Analyze behavioral data, evaluate product experiments, model user behavior, develop dashboards and forecasts, ensure tracking quality, and provide insights that influence product decisions. Collaborate with product and engineering teams while applying statistical, analytical, and AI methods to improve user experiences and business outcomes.

Analyze behavioral data, apply advanced analytics, causal inference, machine learning, and AI to evaluate product experiments and estimate feature impact. The intern will derive insights for product roadmaps, collaborate with product and engineering teams, communicate recommendations to senior leaders, and support a fact-based data science culture.

Leads employee relations cases, workplace investigations, leave and accommodation programs, and complex return-to-work matters. Advises managers and People Business Partners, manages external vendors, identifies trends, and improves policies, processes, employee experience, and program effectiveness across a global workforce.

Conduct research and develop AI solutions for Duolingo’s education products. The role involves solving complex problems, prototyping and evaluating approaches, implementing effective solutions at scale, collaborating cross-functionally, and sharing findings internally and with the broader research community.

Leads strategic, cross-functional technical programs across Growth and the broader organization. Responsibilities include roadmap definition, organizational change management, executive alignment, risk and dependency management, launch execution, process improvement, and mentoring TPMs and engineering leads. The role requires technical credibility, autonomy, strong influence without direct authority, and experience transforming engineering organizations. Familiarity with AI/ML infrastructure, LLM products, large datasets, and AWS is advantageous.

Illustration intern responsible for completing illustration projects independently and collaboratively, developing technical skills through training and mentorship, and partnering with Duolingo artists. Applicants must be pursuing a related bachelor’s degree, have experience with creative software, be available for a full-time 12-week summer internship, and provide a relevant portfolio.

Owns Duolingo English Test proctoring quality standards, calibration, adjudication, certification, and ongoing learning programs. The role analyzes quality trends, develops training interventions, maintains auditable process documentation, guides training specialists and adjudicators, and partners with Psychometrics, Security, Operations, Product, and Engineering to validate human and AI-assisted workflows.

Owns the Duolingo English Test proctoring quality standard, calibration and adjudication programs, certification, ongoing adult learning, and quality measurement. The role develops rubrics, training, decision guidance, and audit-ready processes; analyzes disagreement and performance data; directs specialists and adjudicators; and partners with Psychometrics, Security, Operations, Product, and Engineering to validate human and AI-assisted workflows.

Build and grow Duolingo’s programmatic advertising business by developing agency and advertiser relationships, selling premium PMP and PG deals, managing revenue forecasts and quotas, and negotiating commitments. The role develops pricing, packaging, measurement, and audience-data propositions; partners with Ad Operations on deal setup and delivery; coordinates with direct sales and account management; and establishes scalable sales processes and playbooks.