Civil Engineering Internship Opportunity in NYC

At GPTZero, we're dedicated to reinstating trust and transparency in the digital world. As the premier AI detection platform, we empower educators, students, journalists, marketers, and writers to effectively navigate the dynamic realm of AI-generated content. With millions of users and institutions placing their trust in us, we are shaping a pioneering comp…

At gptzero, we are dedicated to fostering trust and transparency on the internet. As a premier AI detection platform, we empower educators, students, journalists, marketers, and writers to adeptly navigate the rapidly changing landscape of AI-generated content. With millions of users and institutions depending on our services, we are on a journey to establish a category-defining company at the convergence of AI and information integrity.Our diverse team boasts backgrounds from high-performing engineering cultures, including renowned companies such as Meta, Perplexity, AWS, and Affirm, as well as prestigious AI research institutions like Princeton, Caltech, and Vector Institute.We are in search of a talented Product Designer who is enthusiastic about AI transparency, adept at understanding human needs within this AI-centric world, and passionate about crafting groundbreaking AI products. You will collaborate closely with machine learning researchers, engineers, and business teams to shape a more human-centric internet. Join us in our mission to restore trust and transparency.

At GPTZero, we are committed to fostering trust and transparency across the internet. As a premier AI detection platform, we equip educators, students, journalists, marketers, and writers with the tools they need to navigate the rapidly changing world of AI-generated content. With a user base numbering in the millions, we are pioneering a category-defining company at the confluence of AI and information integrity.Our team is comprised of individuals from high-performance engineering backgrounds, including industry leaders like Meta, Perplexity, AWS, Affirm, and renowned AI research institutions such as Princeton, Caltech, and the Vector Institute.About this role:In this pivotal role, you will be instrumental in developing the next generation of AI tools designed to enhance and preserve critical thinking for humanity. The ideal candidate will be skilled in creating dependable AI agents and prompt engineering, possess a strong product sense, and demonstrate exceptional software engineering abilities. You will collaborate with a dynamic team of passionate innovators to create software that sets industry standards and has garnered millions of global users.

At GPTZero, we are dedicated to restoring trust and transparency across the digital landscape. As the premier AI detection platform, we empower educators, students, journalists, marketers, and writers to adeptly navigate the complexities of AI-generated content. With millions of users and institutions depending on our innovative solutions, we are crafting a category-defining company that sits at the nexus of AI and information integrity.Our talented team hails from elite engineering environments, including Meta, Perplexity, AWS, Affirm, and prestigious AI research institutions such as Princeton, Caltech, and the Vector Institute.We are looking for a skilled Product Designer who is passionate about AI transparency and adept at understanding user needs in this evolving AI landscape. In this role, you will collaborate closely with machine learning researchers, engineers, and business teams to create user-centric, cutting-edge AI products. Join us in our mission to restore trust and transparency online.

At GPTZero, we are dedicated to enhancing trust and transparency across the internet. As the foremost AI detection platform, we provide essential tools for educators, students, journalists, marketers, and writers to effectively navigate the complexities of AI-generated content. With millions of users and institutions depending on our solutions, we are creating a pioneering company that sits at the convergence of AI and information integrity.Our engineering team boasts expertise from elite organizations, including Meta, Perplexity, AWS, Affirm, and top-tier AI research institutions like Princeton, Caltech, and Vector Institute.What We're SeekingWe are looking for a Senior Software Engineer with a robust background in experimentation to develop and deliver responsible AI-powered products to millions of users. You will play a critical role in expanding our AI detection and verification platform, while also innovating new products. The ideal candidate will exhibit agility in shipping new features and user interfaces, spearheading experiments and growth loops, and collaborating closely with our exceptional design team.

About AdaptiveAdaptiveSecurity stands at the forefront of AI cybersecurity, being the exclusive investment of NVIDIA and OpenAI in this crucial field.As a pioneering startup, our mission is to thwart AI-driven cyberattacks. Following a successful funding round in December 2025, we secured $81M in Series B financing led by NVIDIA and Bain Capital Ventures, with contributions from Capital One Ventures, Citi Ventures, and ongoing support from Andreessen Horowitz (a16z), the OpenAI Startup Fund, and Abstract Ventures. This landmark funding round signifies NVIDIA's inaugural venture into AI cybersecurity.Founded by seasoned entrepreneurs Brian Long and Andrew Jones, who have a track record of building and scaling industry-leading companies, Adaptive is poised for growth. Previously, they co-founded Attentive, which achieved over $500M in annual revenue and a valuation exceeding $10B, along with TapCommerce, acquired by Twitter. Their extensive experience in fostering high-growth, product-centric businesses is integral to Adaptive's ambition to create a robust security framework for the AI landscape.Our trusted solutions are utilized by leading banks, technology firms, and healthcare providers, safeguarding teams against emerging threats such as deepfakes, smishing, and AI-generated voice scams. With swift enterprise adoption and a market potential exceeding $200B, Adaptive is just getting started.RoleWe are on the lookout for a Lead Software Engineer who is passionate about crafting high-quality software within a dynamic startup atmosphere where each engineer significantly influences product outcomes and company growth.In this role, you will tackle our most intricate and far-reaching technical challenges. You will set the technical vision, mentor fellow engineers, and oversee critical components of our platform. This position is ideal for a leader who inspires through influence, engages directly in problem-solving, and elevates the performance of those around them.ResponsibilitiesDefine technical direction and unite the team around common objectives.Manage multiple projects from inception to completion, regardless of size or complexity.Mentor and advocate for engineers to facilitate their professional development.Resolve obstacles — when the team faces challenges, you will clarify trade-offs and assist in decision-making.Collaborate closely with product and design teams — in this role, you will make strategic decisions that shape the product's trajectory.Engage directly in coding and technical tasks when necessary, rather than solely delegating.Foster a culture of ownership, urgency, and technical excellence.Stay abreast of cutting-edge technologies and introduce innovations that enhance our platform.

About AdaptiveAdaptiveSecurity is at the forefront of cybersecurity innovation, being the only AI-focused investment from NVIDIA and OpenAI. Our mission is to combat AI-driven cyber threats effectively.Founded in December 2025, Adaptive secured an impressive $81M in Series B funding, spearheaded by NVIDIA and Bain Capital Ventures, alongside contributions from Capital One Ventures and Citi Ventures, with ongoing support from Andreessen Horowitz (a16z), the OpenAI Startup Fund, and Abstract Ventures. This funding round marked NVIDIA’s inaugural investment in AI cybersecurity.Our founders, Brian Long and Andrew Jones, are seasoned entrepreneurs with a proven track record in scaling transformative companies. They previously co-founded Attentive, which achieved over $500M in annual revenue and a valuation exceeding $10B, and TapCommerce, which was acquired by Twitter. Their extensive experience in building high-growth, product-oriented businesses drives Adaptive's ambition to create a robust security layer for the AI era.Trusted by top-tier banks, technology firms, and healthcare providers, Adaptive defends against emerging threats such as deepfakes, smishing, and AI-enhanced voice scams. With increasing enterprise adoption and a market potential exceeding $200B, we are just beginning our journey.Role OverviewWe are on the lookout for a Senior Software Engineer who thrives in a fast-paced startup atmosphere, where each engineer plays a pivotal role in shaping the product and the company’s future. You will take charge of significant features from inception to deployment, make long-lasting architectural decisions, and establish practices that enhance team productivity.This position is ideal for someone eager to construct, mentor, and influence our operational methodologies.Key ResponsibilitiesDesign and implement large-scale features and systems from start to finish.Establish practices that improve team efficiency and ensure codebase maintainability.Proactively drive change without waiting for direction.Collaborate closely with product and design teams from day one, merging roles and guiding project directions.Anticipate upcoming complexities and architect scalable systems to counter evolving threats.Assist in the hiring process by conducting interviews and identifying exceptional talent.Qualifications5+ years of experience in developing customer-facing software solutions.Bachelor's degree in Computer Science, Software Engineering, or a related field, or equivalent practical experience.Strong problem-solving skills and a proactive attitude.Experience in collaborative team environments.Ability to mentor junior engineers and foster a culture of learning.

About AdaptiveAdaptive Security is at the forefront of AI cybersecurity, proudly recognized as NVIDIA and OpenAI's exclusive investment in this domain. Our mission is to thwart AI-driven cyber threats effectively.Founded by seasoned entrepreneurs Brian Long and Andrew Jones, who have previously scaled companies to remarkable heights, Adaptive recently secured $81 million in a Series B funding round, led by NVIDIA and Bain Capital Ventures, with contributions from Capital One Ventures, Citi Ventures, and ongoing backing from industry leaders like Andreessen Horowitz (a16z) and the OpenAI Startup Fund. Our founders have a proven track record, having co-founded Attentive and TapCommerce, and are committed to building a robust security framework for the AI era.With our trusted solutions already employed by leading banks, technology firms, and healthcare organizations, Adaptive is dedicated to protecting teams from evolving threats, including deepfakes, smishing, and AI-driven voice scams. As we continue to experience rapid adoption in the enterprise sector, we are poised to capitalize on a market exceeding $200 billion.RoleWe are on the lookout for a passionate Software Engineer eager to contribute to high-quality software development in a dynamic startup environment where every engineer's impact is significant. You will be directly involved in shipping tangible features for our customers from day one, creating products that are pivotal to the field of AI cybersecurity. As you advance in your role, you will cultivate your technical acumen and develop a unique vision for product direction.ResponsibilitiesDevelop and deploy features across the entire technology stack—frontend, backend, and infrastructure.Produce clean, well-tested code that is easily comprehensible and maintainable by fellow engineers.Collaborate closely with product management and design teams—our engineers play a crucial role in shaping our product vision.Engage with customer feedback to develop your insights on product enhancements.Commit to ongoing professional development— we heavily invest in advanced tools and resources, including AI coding assistants.Qualifications1-4+ years of experience in developing customer-facing software applications.Bachelor's degree or equivalent experience in Computer Science, Software Engineering, or a related discipline.Proficient in relevant programming languages and frameworks with a strong understanding of software development principles.

Flagler Health is an innovative health technology company at the forefront of revolutionizing healthcare delivery. Our mission is to empower healthcare organizations through AI-driven workflow automation, enhancing remote patient engagement, and optimizing chronic care management. With a robust platform that has positively impacted over 1.5 million patients, we are trusted by healthcare providers and payers to enhance operational efficiency, reduce costs, and achieve superior patient outcomes. Positioned uniquely with a freemium model and limited competition, we are set to capture a significant portion of the $4.5 trillion U.S. healthcare market.Key ResponsibilitiesDesign, develop, and maintain scalable backend services and web applications.Engage in the development of real-time web applications for audio and SMS communication with patients.Implement and manage fault-tolerant, long-running workflows for asynchronous and background processing.Collaborate effectively with frontend, product, and infrastructure teams to deliver robust and compliant systems.

GPTZero is dedicated to enhancing trust and transparency across the internet. As the premier platform for AI detection, we equip educators, students, journalists, marketers, and writers to effectively navigate the ever-evolving environment of AI-generated content. With millions of users and institutions depending on our services, we are committed to establishing a category-defining company at the intersection of artificial intelligence and information integrity.Our team is composed of high-caliber professionals from esteemed engineering backgrounds, including Meta, Perplexity, AWS, Affirm, and leading AI research institutions such as Princeton, Caltech, and the Vector Institute.

About Our TeamAt OpenAI, our Forward Deployed Engineering team collaborates with clients to transform groundbreaking research into operational systems. We thrive at the nexus of customer delivery and foundational platform development.About the RoleWe are seeking a passionate, customer-oriented Software Engineer to create tailored software solutions that harness OpenAI’s APIs to address genuine customer challenges. As a Forward Deployed Software Engineer (FDSWE), you will engage with clients and fellow OpenAI engineers to design and implement scalable systems that tackle complex issues. Your role will involve crafting abstractions to resolve customer concerns, enhancing our speed and quality of delivery across all Forward Deployed projects.You will work closely with Sales, Solutions Engineering, Solutions Architects, and Customer Success Managers who are aligned with the same client accounts. Additionally, you will liaise with our Research and Applied Product and Engineering teams to share valuable customer insights.This position is based in New York City, utilizing a hybrid work model with three days in the office per week. We provide relocation assistance, and the role may involve up to 50% travel.Key Responsibilities:Engage deeply with strategic customers to fully grasp their business challenges and technical needs.Design, prototype, and develop comprehensive full-stack solutions using an experimental, iterative approach.Draft detailed scopes of work and project timelines for both proof-of-concept initiatives and full-scale production rollouts.Collaborate hands-on with customer technical teams as a trusted technical advisor, coding alongside them to successfully drive projects to fruition.Work in partnership with Product, Research, and Applied teams to ensure exceptional customer experiences, project achievements, and actionable product insights.Contribute to internal documentation, codifying best practices and sharing insights from customer engagements to elevate the Forward Deployed Engineering initiative.Ideal Candidate Profile:7+ years of professional full-stack engineering experience (excluding internships) in technology-driven and product-focused organizations - experience in customer-facing roles is highly valued.Expertise in modern programming languages and frameworks, with a strong foundation in software architecture and design principles.Proven ability to collaborate effectively across diverse teams, fostering a culture of innovation and continuous improvement.Exceptional problem-solving skills and a dedication to delivering impactful results for customers.

Hybrid: 3 days per week (Tues-Thurs) at NYC Global HQAbout UsAt DoubleVerify, we are the premier independent provider of marketing measurement software, data, and analytics, dedicated to ensuring the quality and effectiveness of digital media for some of the world's largest brands and media platforms. Since our inception in 2008, we've empowered hundreds of Fortune 500 companies to maximize their media investments through our best-in-class solutions, fostering a more transparent and accountable digital advertising ecosystem. Explore more at www.doubleverify.com.Your RoleAs a Software Engineer Intern, you will collaborate with our dynamic Engineering and Product teams on essential systems that handle billions of real-time transactions daily. You will tackle complex challenges involving Big Data processing and analytics at scale.Key ResponsibilitiesResearch, conceive, and develop innovative data engineering solutions.Create software and data-intensive applications that enhance and extend DoubleVerify's suite of Social Viewability and Brand Suitability measurement products.Utilize cutting-edge big data technologies to construct large-scale batch and streaming pipelines on Google Cloud Platform.Participate in multi-functional agile teams, taking end-to-end responsibility for product development and delivery, while gaining mentorship.Enhance data quality through rigorous testing, tooling, and automation efforts.Assist in the maintenance and support of critical services.

About Our TeamAt OpenAI, our Forward Deployed Engineering (FDE) organization is at the forefront of bridging product development, engineering, research, and market strategies. We collaborate with design partners to transform innovative platform capabilities into real-world applications, shaping software and creating sustainable products based on genuine customer feedback.The FDE Platform team plays a crucial role in amplifying the impact of our organization on OpenAI’s platforms and products. We work closely with customer-focused FDE pods, providing essential support in architecture, product development, refactoring, and implementation. This position is ideal for collaborative software engineers eager to innovate and build state-of-the-art products alongside like-minded professionals.About the RoleAs a Platform Engineer within the Forward Deployed Engineering team, you will be instrumental in developing new platform capabilities, rooted in actual customer deployments. You will collaborate with customer-focused FDE engineers who are dedicated to delivering impactful customer outcomes, embedding yourself where your contributions can maximize effectiveness. This involves engaging deeply in architecture, product shaping, refactoring, and the creation of reusable frameworks while ensuring the FDE pods maintain their ownership of customer insights and daily execution. You will also work closely with our B2B Platform Team and other long-term stakeholders to establish early alignment on which elements should be generalized, which should remain specific to customers, and what successful handoff looks like.No travel is required for this role. The position is available in San Francisco or New York City, utilizing a hybrid work model that includes three days in the office each week. We provide relocation assistance, and while travel is generally less than 10%, it may increase for key projects or launches.In this Role, You WillProvide Direct Support to Customer Pods: Collaborate with customer-focused FDE teams to aid in generalization by actively participating in architecture, product shaping, refactoring, and execution.Transform Customer Insights into Strategic Platform Initiatives: Convert recurring customer signals into clear hypotheses with defined success metrics, project scope, and validation strategies tailored to real-world constraints.Elevate Engineering Standards: Establish organization-wide quality benchmarks through detailed code reviews and mentorship, while developing lightweight developer tools that prioritize good architecture, readability, and correctness.

Join Perchwell as a Senior Site Reliability Engineer, where you'll play a crucial role in maintaining and enhancing our scalable infrastructure. In this position, you will collaborate with cross-functional teams to ensure the reliability and performance of our systems. Your expertise will help drive our commitment to delivering exceptional service and innovative solutions to our clients.

About GreenboardAt Greenboard, we are pioneering the future of financial compliance. Our unified, AI-driven compliance operating system serves registered investment advisors (RIAs), fintechs, private funds, hedge funds, and beyond, replacing the disjointed array of legacy tools and automating processes beyond previous capabilities. By centralizing data and streamlining workflows, Greenboard empowers firms to mitigate regulatory risks, simplify their technology infrastructure, modernize compliance operations, and achieve cost savings.Our founding team consists of engineers who have successfully scaled products at industry giants such as Amazon and Google, as well as at several unicorn startups. Supported by esteemed investors including Y Combinator, General Catalyst, and Base10, we have raised over $20 million to date. Renowned financial institutions already trust Greenboard, and our growth trajectory is rapidly accelerating.About the Role:As a pivotal member of our engineering team, you will tackle complex technical challenges ranging from building AI agents for insider trading detection to scaling messaging archiving systems capable of processing tens of millions of messages daily. You will collaborate with a team of world-class engineers, making a significant impact on our innovative projects.This is a full-time, on-site Fullstack Software Engineer position based in New York City.Who You Are:You thrive in fast-paced environments and love to build innovative solutions.You seek deep ownership of the products you develop.You are passionate about understanding and serving the customers you build for.You possess excellent communication skills.You value teamwork and collaboration.You are based in New York City.Qualifications:3-5 years of industry experience.Proficient in Node.js and Python.Experience architecting secure, scalable systems on AWS.Experience in developing scalable data infrastructure.Knowledge of AI and machine learning algorithms.Ability to work effectively in a fast-paced startup environment.Experience in the financial industry is a plus, but not mandatory.Benefits:401(k) plan with 5% company match.Comprehensive medical, dental, and vision insurance.15 days of paid time off plus 11 company holidays and flexible sick leave.

At Tiger Data, previously known as Timescale, we are dedicated to empowering developers and businesses with the fastest PostgreSQL platform, expertly crafted for transactional, analytical, and agentic workloads. Trusted by thousands of organizations worldwide, Tiger Data accelerates real-time insights, drives intelligent applications, and supports critical infrastructure at scale. Our globally distributed, remote-first team is committed to direct communication, accountability, and collaborative excellence, as we shape the future of data infrastructure designed for speed, flexibility, and simplicity.We are on the lookout for exceptional database engineers to join our dynamic team. In this role, you will design, code, and test the core components of our PostgreSQL-based database. Our focus is on building a scalable, reliable, robust, user-friendly, secure, and high-performance database. Strong systems-building experience and expertise in C are essential, along with a solid understanding of query optimization and database systems. Ideally, you will have existing PostgreSQL expertise or demonstrate a keen interest and aptitude to become an expert.This position is fully remote and full-time.Key Responsibilities:Contribute significantly to the design and development of new database capabilities, including analytics, clustering, distributed operations, query, and storage optimizations.Develop, test, and launch new features and functionalities from our database technical roadmap.Continuously enhance, optimize, and test the existing features of TimescaleDB.Enhance infrastructure for evaluating and testing database correctness and performance.Collaborate closely with our Cloud Engineering team to deliver a world-class experience for our Tiger Data customers.Provide high-level technical support to valued customers, gaining insights into their needs and experiences.Be a collaborative and approachable teammate, engaging in code reviews and supporting fellow engineers.Ideal Candidate Profile:5+ years of engineering experience.Proven expertise in building industrial-strength software in C/C++ for large codebases.Experience with PostgreSQL internal development is highly desirable but not a strict requirement.Strong understanding of SQL, query processing, database engines, concurrency control, data replication, and/or distributed systems.A genuine passion for building exceptional database solutions.

Join our dynamic team at Privy, a leading provider of innovative solutions for businesses, as a Staff Frontend Engineer. In this role, you will work closely with cross-functional teams to develop and enhance our frontend applications, ensuring a seamless user experience. You will leverage modern frameworks and technologies to create responsive and high-performance web applications that meet our users' needs.

The OpportunityModernFi is seeking talented Software Engineers to join our innovative and collaborative engineering team to build the foundational systems of our platform. From day one, you'll be entrusted with significant responsibilities and the chance to influence the future of our products and infrastructure.Your role will involve designing, developing, and maintaining core systems that drive ModernFi's products and integrations. You will have the opportunity to shape our engineering culture and contribute to the overall trajectory of the company.We are committed to hiring exceptional talent and providing you with the autonomy to create impactful solutions while promoting a culture of collaboration and continuous learning. You will enhance your expertise, engage with mission-critical systems, and contribute to solutions that empower banks and credit unions to better serve their communities, thus contributing to improved financial health across the nation.We are hiring across various experience levels (Mid-level, Senior, and Staff), with the specific level determined during the interview process based on your technical performance.

Join Suno: Redefining Music CreationAt Suno, we are transforming the music technology landscape to unleash creativity, where your ideas harmonize into sound and your songs come alive. Our innovative platform is fueled by cutting-edge music creation models, making musical expression accessible to millions around the globe.Founded by passionate Harvard alumni just two years ago, Suno has rapidly ascended to a valuation of $2.45 billion, achieving $200 million in annual recurring revenue and securing $250 million in Series C funding in November 2025. With a dynamic team of 150 dedicated professionals across our offices in Venice Beach, Cambridge, and New York City, we are among the fastest-growing AI startups worldwide.Our iOS team has garnered over 100,000 reviews with a stellar 4.9 rating on the App Store, playing an integral role in shaping our products and driving our company's success.Position OverviewWe are seeking pioneering members to join our iOS team. In this role, you will collaborate closely with our founding team and take ownership of various technical and design decisions for Suno’s iOS application.Discover our musical tribute to this role here: https://suno.com/s/oEdmOtkZDLHCopSGKey ResponsibilitiesDesign and develop Suno’s iOS app for music creation, exploration, and listening experiences.Establish foundational abstractions and libraries for high-performance, interactive audio applications.Engage in design and product decisions across the application.Enhance the performance, aesthetics, and user experience of our products.Qualifications7+ years of experience in delivering production iOS applications.Proficient in Swift, utilizing SwiftUI and UIKit as needed.Experience in crafting fluid animations, adept at converting prototypes into robust implementations.A strong commitment to exceptional user experiences, with a focus on detail, rapid iteration, and diligence.A genuine passion for music—whether listening, exploring, or creating—is a significant advantage.Bachelor's degree or equivalent experience required.