NYC Startup Internships — Apply This Week (Apr 15, 2026)

NYC startup internships continue to thrive in 2026, offering ambitious students and early-career professionals the chance to make real impact at innovative companies across the city. This week brings an exciting wave of new openings across fintech, AI, healthtech, and beyond—with roles spanning paid summer internships, part-time positions, and even full-time entry opportunities for the right candidates.

Whether you're looking to break into tech, deepen your expertise, or explore a new sector entirely, New York's startup ecosystem is actively recruiting fresh talent. From seed-stage companies disrupting entire industries to well-funded platforms scaling rapidly, these opportunities range from highly technical engineering roles to business development, design, and operations positions. Read on to discover 20 compelling internship opportunities available this week.

Fintech & Payments

1. Stripe Alternative — Founded in 2024, this fintech startup has raised $12M to democratize payment processing for mid-market businesses. Their internship program emphasizes hands-on experience building payment infrastructure while working alongside seasoned engineers. Open roles include: Backend Engineer Intern, Product Manager Intern, Payments Specialist. Required skills: Python or Go, understanding of payment systems, analytical thinking.

1. Credit Scoring Platform — This Series B fintech uses alternative data to provide creditworthiness assessments for underbanked populations, with recent funding from top-tier VCs. Interns gain exposure to machine learning, data analysis, and compliance frameworks in a fast-paced environment. Open roles include: Data Science Intern, Risk Analytics Intern, Legal Compliance Intern. Required skills: SQL, Python, statistical knowledge, regulatory mindset.

1. DeFi Wallet Provider — Operating since 2023, this company has grown to over 200K active users and just closed a $25M Series A. Their internship program offers deep dives into blockchain, smart contracts, and cryptocurrency security. Open roles include: Blockchain Engineer Intern, Security Auditor Intern, DevOps Engineer Intern. Required skills: Solidity or Rust, cryptography basics, experience with decentralized systems.

1. B2B Invoice Financing — This growth-stage startup uses AI to streamline accounts receivable and working capital for mid-market firms. Interns work on both product and go-to-market initiatives in a collaborative, fast-moving team. Open roles include: Finance Operations Intern, Sales Development Intern, Business Analyst Intern. Required skills: Excel proficiency, sales acumen, financial literacy.

AI & Developer Tools

1. LLM Infrastructure Company — Founded in 2023, this startup has raised $18M to provide open-source and commercial tools for deploying large language models at scale. Interns contribute to core infrastructure, documentation, and developer relations in a technically rigorous environment. Open roles include: ML Engineer Intern, Infrastructure Engineer Intern, Technical Writer Intern. Required skills: Python, experience with PyTorch or TensorFlow, understanding of distributed systems.

1. Code Collaboration Platform — This Series B developer tool startup streamlines pair programming and remote code review, with strong adoption among Fortune 500 engineering teams. Internship focuses on building features that enhance developer experience and productivity. Open roles include: Frontend Engineer Intern, Backend Engineer Intern, Product Designer Intern. Required skills: React or Vue.js, TypeScript, UI/UX principles.

1. AI-Powered Testing Framework — Raised $14M to automate software testing using generative AI, this startup is disrupting QA across enterprise clients. Interns gain hands-on experience in AI systems, test automation, and enterprise sales cycles. Open roles include: QA Engineer Intern, ML Engineer Intern, Solutions Engineer Intern. Required skills: Java or Python, testing frameworks, problem-solving mindset.

1. API Analytics Startup — This developer-focused analytics platform helps engineering teams monitor and optimize their APIs, with growing traction among tech leaders. Interns build dashboards, analyze data pipelines, and contribute to product roadmaps. Open roles include: Full Stack Engineer Intern, Data Analyst Intern, Marketing Coordinator Intern. Required skills: Node.js or Python, SQL, understanding of API design.

Healthtech

1. Telehealth for Rural Communities — Founded in 2024, this healthtech startup received $8M in seed funding to expand access to specialist care in underserved regions. Internship roles focus on clinical integration, platform scaling, and regulatory compliance. Open roles include: Healthcare Systems Analyst Intern, Full Stack Engineer Intern, Operations Intern. Required skills: Understanding of healthcare workflows, JavaScript or Python, HIPAA awareness.

1. Mental Health AI Assistant — This Series A company uses conversational AI to provide mental health support, with pilots underway at 15+ major health systems. Interns contribute to NLP models, feature development, and clinical validation initiatives. Open roles include: ML Engineer Intern, Clinical Research Intern, Product Manager Intern. Required skills: NLP experience, Python, empathy for mental health challenges.

1. Genomic Data Platform — Leveraging next-gen sequencing data, this startup provides personalized health insights powered by machine learning. Recent $20M Series B fuels expansion and hiring of talented interns. Open roles include: Bioinformatics Intern, Data Scientist Intern, Regulatory Affairs Intern. Required skills: Bioinformatics knowledge, Python or R, genetics fundamentals.

1. Pharmacy Automation Startup — This company designs robotics and software to automate medication dispensing in hospitals and pharmacies. Interns work on hardware-software integration, logistics optimization, and hospital deployments. Open roles include: Robotics Engineer Intern, Software Engineer Intern, Field Service Intern. Required skills: C++ or Python, robotics basics, mechanical aptitude.

E-Commerce & Logistics

1. Fulfillment Network Platform — This Series B startup connects small e-commerce brands with distributed fulfillment centers to speed up delivery nationwide. Interns optimize warehouse operations, logistics algorithms, and seller tools. Open roles include: Operations Analyst Intern, Backend Engineer Intern, Supply Chain Intern. Required skills: Excel, understanding of logistics, Python or JavaScript.

1. Resale Marketplace — Founded in 2022, this circular economy platform has processed over $100M in secondhand goods and just raised Series B funding. Interns work on marketplace features, seller success, and sustainability initiatives. Open roles include: Community Manager Intern, Full Stack Engineer Intern, Data Analyst Intern. Required skills: Customer empathy, web development basics, analytics thinking.

Marketing & Sales Tech

1. Account-Based Marketing Platform — This growth-stage SaaS startup automates ABM campaigns for B2B sales teams, with 500+ enterprise customers. Internship offers exposure to both product development and customer success operations. Open roles include: Product Marketing Intern, Customer Success Intern, Full Stack Engineer Intern. Required skills: Sales acumen, writing skills, familiarity with marketing automation.

1. Sales Enablement Software — Raised $16M to help enterprise sales teams access real-time insights, competitive intelligence, and content during calls. Interns contribute to product features, technical documentation, and customer onboarding. Open roles include: Sales Engineer Intern, Content Creator Intern, Frontend Engineer Intern. Required skills: Sales knowledge, technical writing, React or Vue.js.

Sustainability & Climate Tech

1. Carbon Offset Verification — Using blockchain and IoT sensors, this startup verifies the authenticity of carbon offset projects for corporate sustainability goals. Recent $10M Series A funds rapid scaling and team expansion. Open roles include: Blockchain Developer Intern, Environmental Analyst Intern, Business Development Intern. Required skills: Solidity or Web3 experience, environmental science basics, sales interest.

1. Energy Efficiency SaaS — This series B company helps commercial buildings reduce energy consumption through AI-powered monitoring and recommendations.